The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.content.res; |
| 18 | |
| 19 | |
Dianne Hackborn | 2269d157 | 2010-02-24 19:54:22 -0800 | [diff] [blame] | 20 | import com.android.internal.util.XmlUtils; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 21 | |
| 22 | import org.xmlpull.v1.XmlPullParser; |
| 23 | import org.xmlpull.v1.XmlPullParserException; |
| 24 | |
| 25 | import android.graphics.Movie; |
| 26 | import android.graphics.drawable.Drawable; |
| 27 | import android.graphics.drawable.ColorDrawable; |
Dianne Hackborn | 3b3e145 | 2009-09-24 19:22:12 -0700 | [diff] [blame] | 28 | import android.os.Build; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 29 | import android.os.Bundle; |
| 30 | import android.os.SystemProperties; |
| 31 | import android.util.AttributeSet; |
| 32 | import android.util.DisplayMetrics; |
| 33 | import android.util.Log; |
| 34 | import android.util.SparseArray; |
| 35 | import android.util.TypedValue; |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 36 | import android.util.LongSparseArray; |
Mitsuru Oshima | ddd1253 | 2009-07-14 10:41:13 -0700 | [diff] [blame] | 37 | import android.view.Display; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 38 | |
| 39 | import java.io.IOException; |
| 40 | import java.io.InputStream; |
| 41 | import java.lang.ref.WeakReference; |
Dianne Hackborn | e36d6e2 | 2010-02-17 19:46:25 -0800 | [diff] [blame] | 42 | import java.util.Locale; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 43 | |
| 44 | /** |
| 45 | * Class for accessing an application's resources. This sits on top of the |
| 46 | * asset manager of the application (accessible through getAssets()) and |
| 47 | * provides a higher-level API for getting typed data from the assets. |
| 48 | */ |
| 49 | public class Resources { |
| 50 | static final String TAG = "Resources"; |
| 51 | private static final boolean DEBUG_LOAD = false; |
| 52 | private static final boolean DEBUG_CONFIG = false; |
| 53 | private static final boolean TRACE_FOR_PRELOAD = false; |
| 54 | |
Dianne Hackborn | 3b3e145 | 2009-09-24 19:22:12 -0700 | [diff] [blame] | 55 | // Use the current SDK version code. If we are a development build, |
| 56 | // also allow the previous SDK version + 1. |
| 57 | private static final int sSdkVersion = Build.VERSION.SDK_INT |
Dianne Hackborn | 5533995 | 2009-11-01 21:16:59 -0800 | [diff] [blame] | 58 | + ("REL".equals(Build.VERSION.CODENAME) ? 0 : 1); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 59 | private static final Object mSync = new Object(); |
| 60 | private static Resources mSystem = null; |
| 61 | |
| 62 | // Information about preloaded resources. Note that they are not |
| 63 | // protected by a lock, because while preloading in zygote we are all |
| 64 | // single-threaded, and after that these are immutable. |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 65 | private static final LongSparseArray<Drawable.ConstantState> sPreloadedDrawables |
| 66 | = new LongSparseArray<Drawable.ConstantState>(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 67 | private static final SparseArray<ColorStateList> mPreloadedColorStateLists |
| 68 | = new SparseArray<ColorStateList>(); |
| 69 | private static boolean mPreloaded; |
| 70 | |
| 71 | /*package*/ final TypedValue mTmpValue = new TypedValue(); |
| 72 | |
| 73 | // These are protected by the mTmpValue lock. |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 74 | private final LongSparseArray<WeakReference<Drawable.ConstantState> > mDrawableCache |
| 75 | = new LongSparseArray<WeakReference<Drawable.ConstantState> >(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 76 | private final SparseArray<WeakReference<ColorStateList> > mColorStateListCache |
| 77 | = new SparseArray<WeakReference<ColorStateList> >(); |
| 78 | private boolean mPreloading; |
| 79 | |
| 80 | /*package*/ TypedArray mCachedStyledAttributes = null; |
| 81 | |
| 82 | private int mLastCachedXmlBlockIndex = -1; |
| 83 | private final int[] mCachedXmlBlockIds = { 0, 0, 0, 0 }; |
| 84 | private final XmlBlock[] mCachedXmlBlocks = new XmlBlock[4]; |
| 85 | |
| 86 | /*package*/ final AssetManager mAssets; |
| 87 | private final Configuration mConfiguration = new Configuration(); |
| 88 | /*package*/ final DisplayMetrics mMetrics = new DisplayMetrics(); |
| 89 | PluralRules mPluralRule; |
Mitsuru Oshima | 9189cab | 2009-06-03 11:19:12 -0700 | [diff] [blame] | 90 | |
Dianne Hackborn | a53b828 | 2009-07-17 11:13:48 -0700 | [diff] [blame] | 91 | private CompatibilityInfo mCompatibilityInfo; |
Mitsuru Oshima | ddd1253 | 2009-07-14 10:41:13 -0700 | [diff] [blame] | 92 | private Display mDefaultDisplay; |
Mitsuru Oshima | e5fb328 | 2009-06-09 21:16:08 -0700 | [diff] [blame] | 93 | |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 94 | private static final LongSparseArray<Object> EMPTY_ARRAY = new LongSparseArray<Object>() { |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 95 | @Override |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 96 | public void put(long k, Object o) { |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 97 | throw new UnsupportedOperationException(); |
| 98 | } |
| 99 | @Override |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 100 | public void append(long k, Object o) { |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 101 | throw new UnsupportedOperationException(); |
| 102 | } |
| 103 | }; |
| 104 | |
| 105 | @SuppressWarnings("unchecked") |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 106 | private static <T> LongSparseArray<T> emptySparseArray() { |
| 107 | return (LongSparseArray<T>) EMPTY_ARRAY; |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 108 | } |
| 109 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 110 | /** |
| 111 | * This exception is thrown by the resource APIs when a requested resource |
| 112 | * can not be found. |
| 113 | */ |
| 114 | public static class NotFoundException extends RuntimeException { |
| 115 | public NotFoundException() { |
| 116 | } |
| 117 | |
| 118 | public NotFoundException(String name) { |
| 119 | super(name); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Create a new Resources object on top of an existing set of assets in an |
| 125 | * AssetManager. |
| 126 | * |
| 127 | * @param assets Previously created AssetManager. |
| 128 | * @param metrics Current display metrics to consider when |
| 129 | * selecting/computing resource values. |
| 130 | * @param config Desired device configuration to consider when |
| 131 | * selecting/computing resource values (optional). |
| 132 | */ |
| 133 | public Resources(AssetManager assets, DisplayMetrics metrics, |
| 134 | Configuration config) { |
Mitsuru Oshima | ba3ba57 | 2009-07-08 18:49:26 -0700 | [diff] [blame] | 135 | this(assets, metrics, config, (CompatibilityInfo) null); |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 136 | } |
| 137 | |
| 138 | /** |
Mitsuru Oshima | ba3ba57 | 2009-07-08 18:49:26 -0700 | [diff] [blame] | 139 | * Creates a new Resources object with CompatibilityInfo. |
Mitsuru Oshima | 9189cab | 2009-06-03 11:19:12 -0700 | [diff] [blame] | 140 | * |
| 141 | * @param assets Previously created AssetManager. |
| 142 | * @param metrics Current display metrics to consider when |
| 143 | * selecting/computing resource values. |
| 144 | * @param config Desired device configuration to consider when |
| 145 | * selecting/computing resource values (optional). |
Mitsuru Oshima | ba3ba57 | 2009-07-08 18:49:26 -0700 | [diff] [blame] | 146 | * @param compInfo this resource's compatibility info. It will use the default compatibility |
| 147 | * info when it's null. |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 148 | * @hide |
| 149 | */ |
| 150 | public Resources(AssetManager assets, DisplayMetrics metrics, |
Mitsuru Oshima | ba3ba57 | 2009-07-08 18:49:26 -0700 | [diff] [blame] | 151 | Configuration config, CompatibilityInfo compInfo) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 152 | mAssets = assets; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 153 | mMetrics.setToDefaults(); |
Mitsuru Oshima | ba3ba57 | 2009-07-08 18:49:26 -0700 | [diff] [blame] | 154 | if (compInfo == null) { |
Mitsuru Oshima | 9189cab | 2009-06-03 11:19:12 -0700 | [diff] [blame] | 155 | mCompatibilityInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO; |
Mitsuru Oshima | 64f5934 | 2009-06-21 00:03:11 -0700 | [diff] [blame] | 156 | } else { |
Mitsuru Oshima | ba3ba57 | 2009-07-08 18:49:26 -0700 | [diff] [blame] | 157 | mCompatibilityInfo = compInfo; |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 158 | } |
Mitsuru Oshima | 569076c | 2009-07-02 20:06:08 -0700 | [diff] [blame] | 159 | updateConfiguration(config, metrics); |
| 160 | assets.ensureStringBlocks(); |
Mitsuru Oshima | 569076c | 2009-07-02 20:06:08 -0700 | [diff] [blame] | 161 | } |
| 162 | |
| 163 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 164 | * Return a global shared Resources object that provides access to only |
| 165 | * system resources (no application resources), and is not configured for |
| 166 | * the current screen (can not use dimension units, does not change based |
| 167 | * on orientation, etc). |
| 168 | */ |
| 169 | public static Resources getSystem() { |
| 170 | synchronized (mSync) { |
| 171 | Resources ret = mSystem; |
| 172 | if (ret == null) { |
| 173 | ret = new Resources(); |
| 174 | mSystem = ret; |
| 175 | } |
| 176 | |
| 177 | return ret; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * Return the string value associated with a particular resource ID. The |
| 183 | * returned object will be a String if this is a plain string; it will be |
| 184 | * some other type of CharSequence if it is styled. |
| 185 | * {@more} |
| 186 | * |
| 187 | * @param id The desired resource identifier, as generated by the aapt |
| 188 | * tool. This integer encodes the package, type, and resource |
| 189 | * entry. The value 0 is an invalid identifier. |
| 190 | * |
| 191 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 192 | * |
| 193 | * @return CharSequence The string data associated with the resource, plus |
| 194 | * possibly styled text information. |
| 195 | */ |
| 196 | public CharSequence getText(int id) throws NotFoundException { |
| 197 | CharSequence res = mAssets.getResourceText(id); |
| 198 | if (res != null) { |
| 199 | return res; |
| 200 | } |
| 201 | throw new NotFoundException("String resource ID #0x" |
| 202 | + Integer.toHexString(id)); |
| 203 | } |
| 204 | |
| 205 | /** |
| 206 | * @param id The desired resource identifier, as generated by the aapt |
| 207 | * tool. This integer encodes the package, type, and resource |
| 208 | * entry. The value 0 is an invalid identifier. |
| 209 | * |
| 210 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 211 | * |
| 212 | * @return CharSequence The string data associated with the resource, plus |
| 213 | * possibly styled text information. |
| 214 | */ |
| 215 | public CharSequence getQuantityText(int id, int quantity) throws NotFoundException { |
| 216 | PluralRules rule = getPluralRule(); |
| 217 | CharSequence res = mAssets.getResourceBagText(id, rule.attrForNumber(quantity)); |
| 218 | if (res != null) { |
| 219 | return res; |
| 220 | } |
| 221 | res = mAssets.getResourceBagText(id, PluralRules.ID_OTHER); |
| 222 | if (res != null) { |
| 223 | return res; |
| 224 | } |
| 225 | throw new NotFoundException("Plural resource ID #0x" + Integer.toHexString(id) |
| 226 | + " quantity=" + quantity |
| 227 | + " item=" + PluralRules.stringForQuantity(rule.quantityForNumber(quantity))); |
| 228 | } |
| 229 | |
| 230 | private PluralRules getPluralRule() { |
| 231 | synchronized (mSync) { |
| 232 | if (mPluralRule == null) { |
| 233 | mPluralRule = PluralRules.ruleForLocale(mConfiguration.locale); |
| 234 | } |
| 235 | return mPluralRule; |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Return the string value associated with a particular resource ID. It |
| 241 | * will be stripped of any styled text information. |
| 242 | * {@more} |
| 243 | * |
| 244 | * @param id The desired resource identifier, as generated by the aapt |
| 245 | * tool. This integer encodes the package, type, and resource |
| 246 | * entry. The value 0 is an invalid identifier. |
| 247 | * |
| 248 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 249 | * |
| 250 | * @return String The string data associated with the resource, |
| 251 | * stripped of styled text information. |
| 252 | */ |
| 253 | public String getString(int id) throws NotFoundException { |
| 254 | CharSequence res = getText(id); |
| 255 | if (res != null) { |
| 256 | return res.toString(); |
| 257 | } |
| 258 | throw new NotFoundException("String resource ID #0x" |
| 259 | + Integer.toHexString(id)); |
| 260 | } |
| 261 | |
| 262 | |
| 263 | /** |
| 264 | * Return the string value associated with a particular resource ID, |
| 265 | * substituting the format arguments as defined in {@link java.util.Formatter} |
| 266 | * and {@link java.lang.String#format}. It will be stripped of any styled text |
| 267 | * information. |
| 268 | * {@more} |
| 269 | * |
| 270 | * @param id The desired resource identifier, as generated by the aapt |
| 271 | * tool. This integer encodes the package, type, and resource |
| 272 | * entry. The value 0 is an invalid identifier. |
| 273 | * |
| 274 | * @param formatArgs The format arguments that will be used for substitution. |
| 275 | * |
| 276 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 277 | * |
| 278 | * @return String The string data associated with the resource, |
| 279 | * stripped of styled text information. |
| 280 | */ |
| 281 | public String getString(int id, Object... formatArgs) throws NotFoundException { |
| 282 | String raw = getString(id); |
| 283 | return String.format(mConfiguration.locale, raw, formatArgs); |
| 284 | } |
| 285 | |
| 286 | /** |
| 287 | * Return the string value associated with a particular resource ID for a particular |
| 288 | * numerical quantity, substituting the format arguments as defined in |
| 289 | * {@link java.util.Formatter} and {@link java.lang.String#format}. It will be |
| 290 | * stripped of any styled text information. |
| 291 | * {@more} |
| 292 | * |
| 293 | * @param id The desired resource identifier, as generated by the aapt |
| 294 | * tool. This integer encodes the package, type, and resource |
| 295 | * entry. The value 0 is an invalid identifier. |
| 296 | * @param quantity The number used to get the correct string for the current language's |
| 297 | * plural rules. |
| 298 | * @param formatArgs The format arguments that will be used for substitution. |
| 299 | * |
| 300 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 301 | * |
| 302 | * @return String The string data associated with the resource, |
| 303 | * stripped of styled text information. |
| 304 | */ |
| 305 | public String getQuantityString(int id, int quantity, Object... formatArgs) |
| 306 | throws NotFoundException { |
| 307 | String raw = getQuantityText(id, quantity).toString(); |
| 308 | return String.format(mConfiguration.locale, raw, formatArgs); |
| 309 | } |
| 310 | |
| 311 | /** |
| 312 | * Return the string value associated with a particular resource ID for a particular |
| 313 | * numerical quantity. |
| 314 | * |
| 315 | * @param id The desired resource identifier, as generated by the aapt |
| 316 | * tool. This integer encodes the package, type, and resource |
| 317 | * entry. The value 0 is an invalid identifier. |
| 318 | * @param quantity The number used to get the correct string for the current language's |
| 319 | * plural rules. |
| 320 | * |
| 321 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 322 | * |
| 323 | * @return String The string data associated with the resource, |
| 324 | * stripped of styled text information. |
| 325 | */ |
| 326 | public String getQuantityString(int id, int quantity) throws NotFoundException { |
| 327 | return getQuantityText(id, quantity).toString(); |
| 328 | } |
| 329 | |
| 330 | /** |
| 331 | * Return the string value associated with a particular resource ID. The |
| 332 | * returned object will be a String if this is a plain string; it will be |
| 333 | * some other type of CharSequence if it is styled. |
| 334 | * |
| 335 | * @param id The desired resource identifier, as generated by the aapt |
| 336 | * tool. This integer encodes the package, type, and resource |
| 337 | * entry. The value 0 is an invalid identifier. |
| 338 | * |
| 339 | * @param def The default CharSequence to return. |
| 340 | * |
| 341 | * @return CharSequence The string data associated with the resource, plus |
| 342 | * possibly styled text information, or def if id is 0 or not found. |
| 343 | */ |
| 344 | public CharSequence getText(int id, CharSequence def) { |
| 345 | CharSequence res = id != 0 ? mAssets.getResourceText(id) : null; |
| 346 | return res != null ? res : def; |
| 347 | } |
| 348 | |
| 349 | /** |
| 350 | * Return the styled text array associated with a particular resource ID. |
| 351 | * |
| 352 | * @param id The desired resource identifier, as generated by the aapt |
| 353 | * tool. This integer encodes the package, type, and resource |
| 354 | * entry. The value 0 is an invalid identifier. |
| 355 | * |
| 356 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 357 | * |
| 358 | * @return The styled text array associated with the resource. |
| 359 | */ |
| 360 | public CharSequence[] getTextArray(int id) throws NotFoundException { |
| 361 | CharSequence[] res = mAssets.getResourceTextArray(id); |
| 362 | if (res != null) { |
| 363 | return res; |
| 364 | } |
| 365 | throw new NotFoundException("Text array resource ID #0x" |
| 366 | + Integer.toHexString(id)); |
| 367 | } |
| 368 | |
| 369 | /** |
| 370 | * Return the string array associated with a particular resource ID. |
| 371 | * |
| 372 | * @param id The desired resource identifier, as generated by the aapt |
| 373 | * tool. This integer encodes the package, type, and resource |
| 374 | * entry. The value 0 is an invalid identifier. |
| 375 | * |
| 376 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 377 | * |
| 378 | * @return The string array associated with the resource. |
| 379 | */ |
| 380 | public String[] getStringArray(int id) throws NotFoundException { |
| 381 | String[] res = mAssets.getResourceStringArray(id); |
| 382 | if (res != null) { |
| 383 | return res; |
| 384 | } |
| 385 | throw new NotFoundException("String array resource ID #0x" |
| 386 | + Integer.toHexString(id)); |
| 387 | } |
| 388 | |
| 389 | /** |
| 390 | * Return the int array associated with a particular resource ID. |
| 391 | * |
| 392 | * @param id The desired resource identifier, as generated by the aapt |
| 393 | * tool. This integer encodes the package, type, and resource |
| 394 | * entry. The value 0 is an invalid identifier. |
| 395 | * |
| 396 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 397 | * |
| 398 | * @return The int array associated with the resource. |
| 399 | */ |
| 400 | public int[] getIntArray(int id) throws NotFoundException { |
| 401 | int[] res = mAssets.getArrayIntResource(id); |
| 402 | if (res != null) { |
| 403 | return res; |
| 404 | } |
| 405 | throw new NotFoundException("Int array resource ID #0x" |
| 406 | + Integer.toHexString(id)); |
| 407 | } |
| 408 | |
| 409 | /** |
| 410 | * Return an array of heterogeneous values. |
| 411 | * |
| 412 | * @param id The desired resource identifier, as generated by the aapt |
| 413 | * tool. This integer encodes the package, type, and resource |
| 414 | * entry. The value 0 is an invalid identifier. |
| 415 | * |
| 416 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 417 | * |
| 418 | * @return Returns a TypedArray holding an array of the array values. |
| 419 | * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| 420 | * when done with it. |
| 421 | */ |
| 422 | public TypedArray obtainTypedArray(int id) throws NotFoundException { |
| 423 | int len = mAssets.getArraySize(id); |
| 424 | if (len < 0) { |
| 425 | throw new NotFoundException("Array resource ID #0x" |
| 426 | + Integer.toHexString(id)); |
| 427 | } |
| 428 | |
| 429 | TypedArray array = getCachedStyledAttributes(len); |
| 430 | array.mLength = mAssets.retrieveArray(id, array.mData); |
| 431 | array.mIndices[0] = 0; |
| 432 | |
| 433 | return array; |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * Retrieve a dimensional for a particular resource ID. Unit |
| 438 | * conversions are based on the current {@link DisplayMetrics} associated |
| 439 | * with the resources. |
| 440 | * |
| 441 | * @param id The desired resource identifier, as generated by the aapt |
| 442 | * tool. This integer encodes the package, type, and resource |
| 443 | * entry. The value 0 is an invalid identifier. |
| 444 | * |
| 445 | * @return Resource dimension value multiplied by the appropriate |
| 446 | * metric. |
| 447 | * |
| 448 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 449 | * |
| 450 | * @see #getDimensionPixelOffset |
| 451 | * @see #getDimensionPixelSize |
| 452 | */ |
| 453 | public float getDimension(int id) throws NotFoundException { |
| 454 | synchronized (mTmpValue) { |
| 455 | TypedValue value = mTmpValue; |
| 456 | getValue(id, value, true); |
| 457 | if (value.type == TypedValue.TYPE_DIMENSION) { |
| 458 | return TypedValue.complexToDimension(value.data, mMetrics); |
| 459 | } |
| 460 | throw new NotFoundException( |
| 461 | "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| 462 | + Integer.toHexString(value.type) + " is not valid"); |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Retrieve a dimensional for a particular resource ID for use |
| 468 | * as an offset in raw pixels. This is the same as |
| 469 | * {@link #getDimension}, except the returned value is converted to |
| 470 | * integer pixels for you. An offset conversion involves simply |
| 471 | * truncating the base value to an integer. |
| 472 | * |
| 473 | * @param id The desired resource identifier, as generated by the aapt |
| 474 | * tool. This integer encodes the package, type, and resource |
| 475 | * entry. The value 0 is an invalid identifier. |
| 476 | * |
| 477 | * @return Resource dimension value multiplied by the appropriate |
| 478 | * metric and truncated to integer pixels. |
| 479 | * |
| 480 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 481 | * |
| 482 | * @see #getDimension |
| 483 | * @see #getDimensionPixelSize |
| 484 | */ |
| 485 | public int getDimensionPixelOffset(int id) throws NotFoundException { |
| 486 | synchronized (mTmpValue) { |
| 487 | TypedValue value = mTmpValue; |
| 488 | getValue(id, value, true); |
| 489 | if (value.type == TypedValue.TYPE_DIMENSION) { |
| 490 | return TypedValue.complexToDimensionPixelOffset( |
| 491 | value.data, mMetrics); |
| 492 | } |
| 493 | throw new NotFoundException( |
| 494 | "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| 495 | + Integer.toHexString(value.type) + " is not valid"); |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | /** |
| 500 | * Retrieve a dimensional for a particular resource ID for use |
| 501 | * as a size in raw pixels. This is the same as |
| 502 | * {@link #getDimension}, except the returned value is converted to |
| 503 | * integer pixels for use as a size. A size conversion involves |
| 504 | * rounding the base value, and ensuring that a non-zero base value |
| 505 | * is at least one pixel in size. |
| 506 | * |
| 507 | * @param id The desired resource identifier, as generated by the aapt |
| 508 | * tool. This integer encodes the package, type, and resource |
| 509 | * entry. The value 0 is an invalid identifier. |
| 510 | * |
| 511 | * @return Resource dimension value multiplied by the appropriate |
| 512 | * metric and truncated to integer pixels. |
| 513 | * |
| 514 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 515 | * |
| 516 | * @see #getDimension |
| 517 | * @see #getDimensionPixelOffset |
| 518 | */ |
| 519 | public int getDimensionPixelSize(int id) throws NotFoundException { |
| 520 | synchronized (mTmpValue) { |
| 521 | TypedValue value = mTmpValue; |
| 522 | getValue(id, value, true); |
| 523 | if (value.type == TypedValue.TYPE_DIMENSION) { |
| 524 | return TypedValue.complexToDimensionPixelSize( |
| 525 | value.data, mMetrics); |
| 526 | } |
| 527 | throw new NotFoundException( |
| 528 | "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| 529 | + Integer.toHexString(value.type) + " is not valid"); |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | /** |
| 534 | * Retrieve a fractional unit for a particular resource ID. |
| 535 | * |
| 536 | * @param id The desired resource identifier, as generated by the aapt |
| 537 | * tool. This integer encodes the package, type, and resource |
| 538 | * entry. The value 0 is an invalid identifier. |
| 539 | * @param base The base value of this fraction. In other words, a |
| 540 | * standard fraction is multiplied by this value. |
| 541 | * @param pbase The parent base value of this fraction. In other |
| 542 | * words, a parent fraction (nn%p) is multiplied by this |
| 543 | * value. |
| 544 | * |
| 545 | * @return Attribute fractional value multiplied by the appropriate |
| 546 | * base value. |
| 547 | * |
| 548 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 549 | */ |
| 550 | public float getFraction(int id, int base, int pbase) { |
| 551 | synchronized (mTmpValue) { |
| 552 | TypedValue value = mTmpValue; |
| 553 | getValue(id, value, true); |
| 554 | if (value.type == TypedValue.TYPE_FRACTION) { |
| 555 | return TypedValue.complexToFraction(value.data, base, pbase); |
| 556 | } |
| 557 | throw new NotFoundException( |
| 558 | "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| 559 | + Integer.toHexString(value.type) + " is not valid"); |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | /** |
| 564 | * Return a drawable object associated with a particular resource ID. |
| 565 | * Various types of objects will be returned depending on the underlying |
| 566 | * resource -- for example, a solid color, PNG image, scalable image, etc. |
| 567 | * The Drawable API hides these implementation details. |
| 568 | * |
| 569 | * @param id The desired resource identifier, as generated by the aapt |
| 570 | * tool. This integer encodes the package, type, and resource |
| 571 | * entry. The value 0 is an invalid identifier. |
| 572 | * |
| 573 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 574 | * |
| 575 | * @return Drawable An object that can be used to draw this resource. |
| 576 | */ |
| 577 | public Drawable getDrawable(int id) throws NotFoundException { |
| 578 | synchronized (mTmpValue) { |
| 579 | TypedValue value = mTmpValue; |
| 580 | getValue(id, value, true); |
| 581 | return loadDrawable(value, id); |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | /** |
| 586 | * Return a movie object associated with the particular resource ID. |
| 587 | * @param id The desired resource identifier, as generated by the aapt |
| 588 | * tool. This integer encodes the package, type, and resource |
| 589 | * entry. The value 0 is an invalid identifier. |
| 590 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 591 | * |
| 592 | */ |
| 593 | public Movie getMovie(int id) throws NotFoundException { |
| 594 | InputStream is = openRawResource(id); |
| 595 | Movie movie = Movie.decodeStream(is); |
| 596 | try { |
| 597 | is.close(); |
| 598 | } |
| 599 | catch (java.io.IOException e) { |
| 600 | // don't care, since the return value is valid |
| 601 | } |
| 602 | return movie; |
| 603 | } |
| 604 | |
| 605 | /** |
| 606 | * Return a color integer associated with a particular resource ID. |
| 607 | * If the resource holds a complex |
| 608 | * {@link android.content.res.ColorStateList}, then the default color from |
| 609 | * the set is returned. |
| 610 | * |
| 611 | * @param id The desired resource identifier, as generated by the aapt |
| 612 | * tool. This integer encodes the package, type, and resource |
| 613 | * entry. The value 0 is an invalid identifier. |
| 614 | * |
| 615 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 616 | * |
| 617 | * @return Returns a single color value in the form 0xAARRGGBB. |
| 618 | */ |
| 619 | public int getColor(int id) throws NotFoundException { |
| 620 | synchronized (mTmpValue) { |
| 621 | TypedValue value = mTmpValue; |
| 622 | getValue(id, value, true); |
| 623 | if (value.type >= TypedValue.TYPE_FIRST_INT |
| 624 | && value.type <= TypedValue.TYPE_LAST_INT) { |
| 625 | return value.data; |
| 626 | } else if (value.type == TypedValue.TYPE_STRING) { |
| 627 | ColorStateList csl = loadColorStateList(mTmpValue, id); |
| 628 | return csl.getDefaultColor(); |
| 629 | } |
| 630 | throw new NotFoundException( |
| 631 | "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| 632 | + Integer.toHexString(value.type) + " is not valid"); |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | /** |
| 637 | * Return a color state list associated with a particular resource ID. The |
| 638 | * resource may contain either a single raw color value, or a complex |
| 639 | * {@link android.content.res.ColorStateList} holding multiple possible colors. |
| 640 | * |
| 641 | * @param id The desired resource identifier of a {@link ColorStateList}, |
| 642 | * as generated by the aapt tool. This integer encodes the package, type, and resource |
| 643 | * entry. The value 0 is an invalid identifier. |
| 644 | * |
| 645 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 646 | * |
| 647 | * @return Returns a ColorStateList object containing either a single |
| 648 | * solid color or multiple colors that can be selected based on a state. |
| 649 | */ |
| 650 | public ColorStateList getColorStateList(int id) throws NotFoundException { |
| 651 | synchronized (mTmpValue) { |
| 652 | TypedValue value = mTmpValue; |
| 653 | getValue(id, value, true); |
| 654 | return loadColorStateList(value, id); |
| 655 | } |
| 656 | } |
| 657 | |
| 658 | /** |
| 659 | * Return a boolean associated with a particular resource ID. This can be |
| 660 | * used with any integral resource value, and will return true if it is |
| 661 | * non-zero. |
| 662 | * |
| 663 | * @param id The desired resource identifier, as generated by the aapt |
| 664 | * tool. This integer encodes the package, type, and resource |
| 665 | * entry. The value 0 is an invalid identifier. |
| 666 | * |
| 667 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 668 | * |
| 669 | * @return Returns the boolean value contained in the resource. |
| 670 | */ |
| 671 | public boolean getBoolean(int id) throws NotFoundException { |
| 672 | synchronized (mTmpValue) { |
| 673 | TypedValue value = mTmpValue; |
| 674 | getValue(id, value, true); |
| 675 | if (value.type >= TypedValue.TYPE_FIRST_INT |
| 676 | && value.type <= TypedValue.TYPE_LAST_INT) { |
| 677 | return value.data != 0; |
| 678 | } |
| 679 | throw new NotFoundException( |
| 680 | "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| 681 | + Integer.toHexString(value.type) + " is not valid"); |
| 682 | } |
| 683 | } |
| 684 | |
| 685 | /** |
| 686 | * Return an integer associated with a particular resource ID. |
| 687 | * |
| 688 | * @param id The desired resource identifier, as generated by the aapt |
| 689 | * tool. This integer encodes the package, type, and resource |
| 690 | * entry. The value 0 is an invalid identifier. |
| 691 | * |
| 692 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 693 | * |
| 694 | * @return Returns the integer value contained in the resource. |
| 695 | */ |
| 696 | public int getInteger(int id) throws NotFoundException { |
| 697 | synchronized (mTmpValue) { |
| 698 | TypedValue value = mTmpValue; |
| 699 | getValue(id, value, true); |
| 700 | if (value.type >= TypedValue.TYPE_FIRST_INT |
| 701 | && value.type <= TypedValue.TYPE_LAST_INT) { |
| 702 | return value.data; |
| 703 | } |
| 704 | throw new NotFoundException( |
| 705 | "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| 706 | + Integer.toHexString(value.type) + " is not valid"); |
| 707 | } |
| 708 | } |
| 709 | |
| 710 | /** |
| 711 | * Return an XmlResourceParser through which you can read a view layout |
| 712 | * description for the given resource ID. This parser has limited |
| 713 | * functionality -- in particular, you can't change its input, and only |
| 714 | * the high-level events are available. |
| 715 | * |
| 716 | * <p>This function is really a simple wrapper for calling |
| 717 | * {@link #getXml} with a layout resource. |
| 718 | * |
| 719 | * @param id The desired resource identifier, as generated by the aapt |
| 720 | * tool. This integer encodes the package, type, and resource |
| 721 | * entry. The value 0 is an invalid identifier. |
| 722 | * |
| 723 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 724 | * |
| 725 | * @return A new parser object through which you can read |
| 726 | * the XML data. |
| 727 | * |
| 728 | * @see #getXml |
| 729 | */ |
| 730 | public XmlResourceParser getLayout(int id) throws NotFoundException { |
| 731 | return loadXmlResourceParser(id, "layout"); |
| 732 | } |
| 733 | |
| 734 | /** |
| 735 | * Return an XmlResourceParser through which you can read an animation |
| 736 | * description for the given resource ID. This parser has limited |
| 737 | * functionality -- in particular, you can't change its input, and only |
| 738 | * the high-level events are available. |
| 739 | * |
| 740 | * <p>This function is really a simple wrapper for calling |
| 741 | * {@link #getXml} with an animation resource. |
| 742 | * |
| 743 | * @param id The desired resource identifier, as generated by the aapt |
| 744 | * tool. This integer encodes the package, type, and resource |
| 745 | * entry. The value 0 is an invalid identifier. |
| 746 | * |
| 747 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 748 | * |
| 749 | * @return A new parser object through which you can read |
| 750 | * the XML data. |
| 751 | * |
| 752 | * @see #getXml |
| 753 | */ |
| 754 | public XmlResourceParser getAnimation(int id) throws NotFoundException { |
| 755 | return loadXmlResourceParser(id, "anim"); |
| 756 | } |
| 757 | |
| 758 | /** |
| 759 | * Return an XmlResourceParser through which you can read a generic XML |
| 760 | * resource for the given resource ID. |
| 761 | * |
| 762 | * <p>The XmlPullParser implementation returned here has some limited |
| 763 | * functionality. In particular, you can't change its input, and only |
| 764 | * high-level parsing events are available (since the document was |
| 765 | * pre-parsed for you at build time, which involved merging text and |
| 766 | * stripping comments). |
| 767 | * |
| 768 | * @param id The desired resource identifier, as generated by the aapt |
| 769 | * tool. This integer encodes the package, type, and resource |
| 770 | * entry. The value 0 is an invalid identifier. |
| 771 | * |
| 772 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 773 | * |
| 774 | * @return A new parser object through which you can read |
| 775 | * the XML data. |
| 776 | * |
| 777 | * @see android.util.AttributeSet |
| 778 | */ |
| 779 | public XmlResourceParser getXml(int id) throws NotFoundException { |
| 780 | return loadXmlResourceParser(id, "xml"); |
| 781 | } |
| 782 | |
| 783 | /** |
| 784 | * Open a data stream for reading a raw resource. This can only be used |
| 785 | * with resources whose value is the name of an asset files -- that is, it can be |
| 786 | * used to open drawable, sound, and raw resources; it will fail on string |
| 787 | * and color resources. |
| 788 | * |
| 789 | * @param id The resource identifier to open, as generated by the appt |
| 790 | * tool. |
| 791 | * |
| 792 | * @return InputStream Access to the resource data. |
| 793 | * |
| 794 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 795 | * |
| 796 | */ |
| 797 | public InputStream openRawResource(int id) throws NotFoundException { |
| 798 | synchronized (mTmpValue) { |
| 799 | return openRawResource(id, mTmpValue); |
| 800 | } |
| 801 | } |
| 802 | |
| 803 | /** |
| 804 | * Open a data stream for reading a raw resource. This can only be used |
Andy Stadler | f8a7cea | 2009-04-10 16:24:47 -0700 | [diff] [blame] | 805 | * with resources whose value is the name of an asset file -- that is, it can be |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 806 | * used to open drawable, sound, and raw resources; it will fail on string |
| 807 | * and color resources. |
| 808 | * |
| 809 | * @param id The resource identifier to open, as generated by the appt tool. |
| 810 | * @param value The TypedValue object to hold the resource information. |
| 811 | * |
| 812 | * @return InputStream Access to the resource data. |
| 813 | * |
| 814 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 815 | */ |
| 816 | public InputStream openRawResource(int id, TypedValue value) throws NotFoundException { |
| 817 | getValue(id, value, true); |
| 818 | |
| 819 | try { |
| 820 | return mAssets.openNonAsset(value.assetCookie, value.string.toString(), |
| 821 | AssetManager.ACCESS_STREAMING); |
| 822 | } catch (Exception e) { |
| 823 | NotFoundException rnf = new NotFoundException("File " + value.string.toString() + |
| 824 | " from drawable resource ID #0x" + Integer.toHexString(id)); |
| 825 | rnf.initCause(e); |
| 826 | throw rnf; |
| 827 | } |
| 828 | } |
| 829 | |
| 830 | /** |
| 831 | * Open a file descriptor for reading a raw resource. This can only be used |
| 832 | * with resources whose value is the name of an asset files -- that is, it can be |
| 833 | * used to open drawable, sound, and raw resources; it will fail on string |
| 834 | * and color resources. |
| 835 | * |
| 836 | * <p>This function only works for resources that are stored in the package |
| 837 | * as uncompressed data, which typically includes things like mp3 files |
| 838 | * and png images. |
| 839 | * |
| 840 | * @param id The resource identifier to open, as generated by the appt |
| 841 | * tool. |
| 842 | * |
| 843 | * @return AssetFileDescriptor A new file descriptor you can use to read |
| 844 | * the resource. This includes the file descriptor itself, as well as the |
| 845 | * offset and length of data where the resource appears in the file. A |
| 846 | * null is returned if the file exists but is compressed. |
| 847 | * |
| 848 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 849 | * |
| 850 | */ |
| 851 | public AssetFileDescriptor openRawResourceFd(int id) throws NotFoundException { |
| 852 | synchronized (mTmpValue) { |
| 853 | TypedValue value = mTmpValue; |
| 854 | getValue(id, value, true); |
| 855 | |
| 856 | try { |
| 857 | return mAssets.openNonAssetFd( |
| 858 | value.assetCookie, value.string.toString()); |
| 859 | } catch (Exception e) { |
| 860 | NotFoundException rnf = new NotFoundException( |
| 861 | "File " + value.string.toString() |
| 862 | + " from drawable resource ID #0x" |
| 863 | + Integer.toHexString(id)); |
| 864 | rnf.initCause(e); |
| 865 | throw rnf; |
| 866 | } |
| 867 | |
| 868 | } |
| 869 | } |
| 870 | |
| 871 | /** |
| 872 | * Return the raw data associated with a particular resource ID. |
| 873 | * |
| 874 | * @param id The desired resource identifier, as generated by the aapt |
| 875 | * tool. This integer encodes the package, type, and resource |
| 876 | * entry. The value 0 is an invalid identifier. |
| 877 | * @param outValue Object in which to place the resource data. |
| 878 | * @param resolveRefs If true, a resource that is a reference to another |
| 879 | * resource will be followed so that you receive the |
| 880 | * actual final resource data. If false, the TypedValue |
| 881 | * will be filled in with the reference itself. |
| 882 | * |
| 883 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 884 | * |
| 885 | */ |
| 886 | public void getValue(int id, TypedValue outValue, boolean resolveRefs) |
| 887 | throws NotFoundException { |
| 888 | boolean found = mAssets.getResourceValue(id, outValue, resolveRefs); |
| 889 | if (found) { |
| 890 | return; |
| 891 | } |
| 892 | throw new NotFoundException("Resource ID #0x" |
| 893 | + Integer.toHexString(id)); |
| 894 | } |
| 895 | |
| 896 | /** |
| 897 | * Return the raw data associated with a particular resource ID. |
| 898 | * See getIdentifier() for information on how names are mapped to resource |
| 899 | * IDs, and getString(int) for information on how string resources are |
| 900 | * retrieved. |
| 901 | * |
| 902 | * <p>Note: use of this function is discouraged. It is much more |
| 903 | * efficient to retrieve resources by identifier than by name. |
| 904 | * |
| 905 | * @param name The name of the desired resource. This is passed to |
| 906 | * getIdentifier() with a default type of "string". |
| 907 | * @param outValue Object in which to place the resource data. |
| 908 | * @param resolveRefs If true, a resource that is a reference to another |
| 909 | * resource will be followed so that you receive the |
| 910 | * actual final resource data. If false, the TypedValue |
| 911 | * will be filled in with the reference itself. |
| 912 | * |
| 913 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 914 | * |
| 915 | */ |
| 916 | public void getValue(String name, TypedValue outValue, boolean resolveRefs) |
| 917 | throws NotFoundException { |
| 918 | int id = getIdentifier(name, "string", null); |
| 919 | if (id != 0) { |
| 920 | getValue(id, outValue, resolveRefs); |
| 921 | return; |
| 922 | } |
| 923 | throw new NotFoundException("String resource name " + name); |
| 924 | } |
| 925 | |
| 926 | /** |
| 927 | * This class holds the current attribute values for a particular theme. |
| 928 | * In other words, a Theme is a set of values for resource attributes; |
| 929 | * these are used in conjunction with {@link TypedArray} |
| 930 | * to resolve the final value for an attribute. |
| 931 | * |
| 932 | * <p>The Theme's attributes come into play in two ways: (1) a styled |
| 933 | * attribute can explicit reference a value in the theme through the |
| 934 | * "?themeAttribute" syntax; (2) if no value has been defined for a |
| 935 | * particular styled attribute, as a last resort we will try to find that |
| 936 | * attribute's value in the Theme. |
| 937 | * |
| 938 | * <p>You will normally use the {@link #obtainStyledAttributes} APIs to |
| 939 | * retrieve XML attributes with style and theme information applied. |
| 940 | */ |
| 941 | public final class Theme { |
| 942 | /** |
| 943 | * Place new attribute values into the theme. The style resource |
| 944 | * specified by <var>resid</var> will be retrieved from this Theme's |
| 945 | * resources, its values placed into the Theme object. |
| 946 | * |
| 947 | * <p>The semantics of this function depends on the <var>force</var> |
| 948 | * argument: If false, only values that are not already defined in |
| 949 | * the theme will be copied from the system resource; otherwise, if |
| 950 | * any of the style's attributes are already defined in the theme, the |
| 951 | * current values in the theme will be overwritten. |
| 952 | * |
| 953 | * @param resid The resource ID of a style resource from which to |
| 954 | * obtain attribute values. |
| 955 | * @param force If true, values in the style resource will always be |
| 956 | * used in the theme; otherwise, they will only be used |
| 957 | * if not already defined in the theme. |
| 958 | */ |
| 959 | public void applyStyle(int resid, boolean force) { |
| 960 | AssetManager.applyThemeStyle(mTheme, resid, force); |
| 961 | } |
| 962 | |
| 963 | /** |
| 964 | * Set this theme to hold the same contents as the theme |
| 965 | * <var>other</var>. If both of these themes are from the same |
| 966 | * Resources object, they will be identical after this function |
| 967 | * returns. If they are from different Resources, only the resources |
| 968 | * they have in common will be set in this theme. |
| 969 | * |
| 970 | * @param other The existing Theme to copy from. |
| 971 | */ |
| 972 | public void setTo(Theme other) { |
| 973 | AssetManager.copyTheme(mTheme, other.mTheme); |
| 974 | } |
| 975 | |
| 976 | /** |
| 977 | * Return a StyledAttributes holding the values defined by |
| 978 | * <var>Theme</var> which are listed in <var>attrs</var>. |
| 979 | * |
| 980 | * <p>Be sure to call StyledAttributes.recycle() when you are done with |
| 981 | * the array. |
| 982 | * |
| 983 | * @param attrs The desired attributes. |
| 984 | * |
| 985 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 986 | * |
| 987 | * @return Returns a TypedArray holding an array of the attribute values. |
| 988 | * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| 989 | * when done with it. |
| 990 | * |
| 991 | * @see Resources#obtainAttributes |
| 992 | * @see #obtainStyledAttributes(int, int[]) |
| 993 | * @see #obtainStyledAttributes(AttributeSet, int[], int, int) |
| 994 | */ |
| 995 | public TypedArray obtainStyledAttributes(int[] attrs) { |
| 996 | int len = attrs.length; |
| 997 | TypedArray array = getCachedStyledAttributes(len); |
| 998 | array.mRsrcs = attrs; |
| 999 | AssetManager.applyStyle(mTheme, 0, 0, 0, attrs, |
| 1000 | array.mData, array.mIndices); |
| 1001 | return array; |
| 1002 | } |
| 1003 | |
| 1004 | /** |
| 1005 | * Return a StyledAttributes holding the values defined by the style |
| 1006 | * resource <var>resid</var> which are listed in <var>attrs</var>. |
| 1007 | * |
| 1008 | * <p>Be sure to call StyledAttributes.recycle() when you are done with |
| 1009 | * the array. |
| 1010 | * |
| 1011 | * @param resid The desired style resource. |
| 1012 | * @param attrs The desired attributes in the style. |
| 1013 | * |
| 1014 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 1015 | * |
| 1016 | * @return Returns a TypedArray holding an array of the attribute values. |
| 1017 | * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| 1018 | * when done with it. |
| 1019 | * |
| 1020 | * @see Resources#obtainAttributes |
| 1021 | * @see #obtainStyledAttributes(int[]) |
| 1022 | * @see #obtainStyledAttributes(AttributeSet, int[], int, int) |
| 1023 | */ |
| 1024 | public TypedArray obtainStyledAttributes(int resid, int[] attrs) |
| 1025 | throws NotFoundException { |
| 1026 | int len = attrs.length; |
| 1027 | TypedArray array = getCachedStyledAttributes(len); |
| 1028 | array.mRsrcs = attrs; |
| 1029 | |
| 1030 | AssetManager.applyStyle(mTheme, 0, resid, 0, attrs, |
| 1031 | array.mData, array.mIndices); |
| 1032 | if (false) { |
| 1033 | int[] data = array.mData; |
| 1034 | |
| 1035 | System.out.println("**********************************************************"); |
| 1036 | System.out.println("**********************************************************"); |
| 1037 | System.out.println("**********************************************************"); |
| 1038 | System.out.println("Attributes:"); |
| 1039 | String s = " Attrs:"; |
| 1040 | int i; |
| 1041 | for (i=0; i<attrs.length; i++) { |
| 1042 | s = s + " 0x" + Integer.toHexString(attrs[i]); |
| 1043 | } |
| 1044 | System.out.println(s); |
| 1045 | s = " Found:"; |
| 1046 | TypedValue value = new TypedValue(); |
| 1047 | for (i=0; i<attrs.length; i++) { |
| 1048 | int d = i*AssetManager.STYLE_NUM_ENTRIES; |
| 1049 | value.type = data[d+AssetManager.STYLE_TYPE]; |
| 1050 | value.data = data[d+AssetManager.STYLE_DATA]; |
| 1051 | value.assetCookie = data[d+AssetManager.STYLE_ASSET_COOKIE]; |
| 1052 | value.resourceId = data[d+AssetManager.STYLE_RESOURCE_ID]; |
| 1053 | s = s + " 0x" + Integer.toHexString(attrs[i]) |
| 1054 | + "=" + value; |
| 1055 | } |
| 1056 | System.out.println(s); |
| 1057 | } |
| 1058 | return array; |
| 1059 | } |
| 1060 | |
| 1061 | /** |
| 1062 | * Return a StyledAttributes holding the attribute values in |
| 1063 | * <var>set</var> |
| 1064 | * that are listed in <var>attrs</var>. In addition, if the given |
| 1065 | * AttributeSet specifies a style class (through the "style" attribute), |
| 1066 | * that style will be applied on top of the base attributes it defines. |
| 1067 | * |
| 1068 | * <p>Be sure to call StyledAttributes.recycle() when you are done with |
| 1069 | * the array. |
| 1070 | * |
| 1071 | * <p>When determining the final value of a particular attribute, there |
| 1072 | * are four inputs that come into play:</p> |
| 1073 | * |
| 1074 | * <ol> |
| 1075 | * <li> Any attribute values in the given AttributeSet. |
| 1076 | * <li> The style resource specified in the AttributeSet (named |
| 1077 | * "style"). |
| 1078 | * <li> The default style specified by <var>defStyleAttr</var> and |
| 1079 | * <var>defStyleRes</var> |
| 1080 | * <li> The base values in this theme. |
| 1081 | * </ol> |
| 1082 | * |
| 1083 | * <p>Each of these inputs is considered in-order, with the first listed |
| 1084 | * taking precedence over the following ones. In other words, if in the |
| 1085 | * AttributeSet you have supplied <code><Button |
| 1086 | * textColor="#ff000000"></code>, then the button's text will |
| 1087 | * <em>always</em> be black, regardless of what is specified in any of |
| 1088 | * the styles. |
| 1089 | * |
| 1090 | * @param set The base set of attribute values. May be null. |
| 1091 | * @param attrs The desired attributes to be retrieved. |
| 1092 | * @param defStyleAttr An attribute in the current theme that contains a |
| 1093 | * reference to a style resource that supplies |
| 1094 | * defaults values for the StyledAttributes. Can be |
| 1095 | * 0 to not look for defaults. |
| 1096 | * @param defStyleRes A resource identifier of a style resource that |
| 1097 | * supplies default values for the StyledAttributes, |
| 1098 | * used only if defStyleAttr is 0 or can not be found |
| 1099 | * in the theme. Can be 0 to not look for defaults. |
| 1100 | * |
| 1101 | * @return Returns a TypedArray holding an array of the attribute values. |
| 1102 | * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| 1103 | * when done with it. |
| 1104 | * |
| 1105 | * @see Resources#obtainAttributes |
| 1106 | * @see #obtainStyledAttributes(int[]) |
| 1107 | * @see #obtainStyledAttributes(int, int[]) |
| 1108 | */ |
| 1109 | public TypedArray obtainStyledAttributes(AttributeSet set, |
| 1110 | int[] attrs, int defStyleAttr, int defStyleRes) { |
| 1111 | int len = attrs.length; |
| 1112 | TypedArray array = getCachedStyledAttributes(len); |
| 1113 | |
| 1114 | // XXX note that for now we only work with compiled XML files. |
| 1115 | // To support generic XML files we will need to manually parse |
| 1116 | // out the attributes from the XML file (applying type information |
| 1117 | // contained in the resources and such). |
| 1118 | XmlBlock.Parser parser = (XmlBlock.Parser)set; |
| 1119 | AssetManager.applyStyle( |
| 1120 | mTheme, defStyleAttr, defStyleRes, |
| 1121 | parser != null ? parser.mParseState : 0, attrs, |
| 1122 | array.mData, array.mIndices); |
| 1123 | |
| 1124 | array.mRsrcs = attrs; |
| 1125 | array.mXml = parser; |
| 1126 | |
| 1127 | if (false) { |
| 1128 | int[] data = array.mData; |
| 1129 | |
| 1130 | System.out.println("Attributes:"); |
| 1131 | String s = " Attrs:"; |
| 1132 | int i; |
| 1133 | for (i=0; i<set.getAttributeCount(); i++) { |
| 1134 | s = s + " " + set.getAttributeName(i); |
| 1135 | int id = set.getAttributeNameResource(i); |
| 1136 | if (id != 0) { |
| 1137 | s = s + "(0x" + Integer.toHexString(id) + ")"; |
| 1138 | } |
| 1139 | s = s + "=" + set.getAttributeValue(i); |
| 1140 | } |
| 1141 | System.out.println(s); |
| 1142 | s = " Found:"; |
| 1143 | TypedValue value = new TypedValue(); |
| 1144 | for (i=0; i<attrs.length; i++) { |
| 1145 | int d = i*AssetManager.STYLE_NUM_ENTRIES; |
| 1146 | value.type = data[d+AssetManager.STYLE_TYPE]; |
| 1147 | value.data = data[d+AssetManager.STYLE_DATA]; |
| 1148 | value.assetCookie = data[d+AssetManager.STYLE_ASSET_COOKIE]; |
| 1149 | value.resourceId = data[d+AssetManager.STYLE_RESOURCE_ID]; |
| 1150 | s = s + " 0x" + Integer.toHexString(attrs[i]) |
| 1151 | + "=" + value; |
| 1152 | } |
| 1153 | System.out.println(s); |
| 1154 | } |
| 1155 | |
| 1156 | return array; |
| 1157 | } |
| 1158 | |
| 1159 | /** |
| 1160 | * Retrieve the value of an attribute in the Theme. The contents of |
| 1161 | * <var>outValue</var> are ultimately filled in by |
| 1162 | * {@link Resources#getValue}. |
| 1163 | * |
| 1164 | * @param resid The resource identifier of the desired theme |
| 1165 | * attribute. |
| 1166 | * @param outValue Filled in with the ultimate resource value supplied |
| 1167 | * by the attribute. |
| 1168 | * @param resolveRefs If true, resource references will be walked; if |
| 1169 | * false, <var>outValue</var> may be a |
| 1170 | * TYPE_REFERENCE. In either case, it will never |
| 1171 | * be a TYPE_ATTRIBUTE. |
| 1172 | * |
| 1173 | * @return boolean Returns true if the attribute was found and |
| 1174 | * <var>outValue</var> is valid, else false. |
| 1175 | */ |
| 1176 | public boolean resolveAttribute(int resid, TypedValue outValue, |
| 1177 | boolean resolveRefs) { |
| 1178 | boolean got = mAssets.getThemeValue(mTheme, resid, outValue, resolveRefs); |
| 1179 | if (false) { |
| 1180 | System.out.println( |
| 1181 | "resolveAttribute #" + Integer.toHexString(resid) |
| 1182 | + " got=" + got + ", type=0x" + Integer.toHexString(outValue.type) |
| 1183 | + ", data=0x" + Integer.toHexString(outValue.data)); |
| 1184 | } |
| 1185 | return got; |
| 1186 | } |
| 1187 | |
| 1188 | /** |
| 1189 | * Print contents of this theme out to the log. For debugging only. |
| 1190 | * |
| 1191 | * @param priority The log priority to use. |
| 1192 | * @param tag The log tag to use. |
| 1193 | * @param prefix Text to prefix each line printed. |
| 1194 | */ |
| 1195 | public void dump(int priority, String tag, String prefix) { |
| 1196 | AssetManager.dumpTheme(mTheme, priority, tag, prefix); |
| 1197 | } |
| 1198 | |
| 1199 | protected void finalize() throws Throwable { |
| 1200 | super.finalize(); |
| 1201 | mAssets.releaseTheme(mTheme); |
| 1202 | } |
| 1203 | |
| 1204 | /*package*/ Theme() { |
| 1205 | mAssets = Resources.this.mAssets; |
| 1206 | mTheme = mAssets.createTheme(); |
| 1207 | } |
| 1208 | |
| 1209 | private final AssetManager mAssets; |
| 1210 | private final int mTheme; |
| 1211 | } |
| 1212 | |
| 1213 | /** |
| 1214 | * Generate a new Theme object for this set of Resources. It initially |
| 1215 | * starts out empty. |
| 1216 | * |
| 1217 | * @return Theme The newly created Theme container. |
| 1218 | */ |
| 1219 | public final Theme newTheme() { |
| 1220 | return new Theme(); |
| 1221 | } |
| 1222 | |
| 1223 | /** |
| 1224 | * Retrieve a set of basic attribute values from an AttributeSet, not |
| 1225 | * performing styling of them using a theme and/or style resources. |
| 1226 | * |
| 1227 | * @param set The current attribute values to retrieve. |
| 1228 | * @param attrs The specific attributes to be retrieved. |
| 1229 | * @return Returns a TypedArray holding an array of the attribute values. |
| 1230 | * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| 1231 | * when done with it. |
| 1232 | * |
| 1233 | * @see Theme#obtainStyledAttributes(AttributeSet, int[], int, int) |
| 1234 | */ |
| 1235 | public TypedArray obtainAttributes(AttributeSet set, int[] attrs) { |
| 1236 | int len = attrs.length; |
| 1237 | TypedArray array = getCachedStyledAttributes(len); |
| 1238 | |
| 1239 | // XXX note that for now we only work with compiled XML files. |
| 1240 | // To support generic XML files we will need to manually parse |
| 1241 | // out the attributes from the XML file (applying type information |
| 1242 | // contained in the resources and such). |
| 1243 | XmlBlock.Parser parser = (XmlBlock.Parser)set; |
| 1244 | mAssets.retrieveAttributes(parser.mParseState, attrs, |
| 1245 | array.mData, array.mIndices); |
| 1246 | |
| 1247 | array.mRsrcs = attrs; |
| 1248 | array.mXml = parser; |
| 1249 | |
| 1250 | return array; |
| 1251 | } |
Mitsuru Oshima | e5fb328 | 2009-06-09 21:16:08 -0700 | [diff] [blame] | 1252 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1253 | /** |
| 1254 | * Store the newly updated configuration. |
| 1255 | */ |
| 1256 | public void updateConfiguration(Configuration config, |
| 1257 | DisplayMetrics metrics) { |
| 1258 | synchronized (mTmpValue) { |
| 1259 | int configChanges = 0xfffffff; |
| 1260 | if (config != null) { |
| 1261 | configChanges = mConfiguration.updateFrom(config); |
| 1262 | } |
Dianne Hackborn | e36d6e2 | 2010-02-17 19:46:25 -0800 | [diff] [blame] | 1263 | if (mConfiguration.locale == null) { |
| 1264 | mConfiguration.locale = Locale.getDefault(); |
| 1265 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1266 | if (metrics != null) { |
| 1267 | mMetrics.setTo(metrics); |
Dianne Hackborn | 723738c | 2009-06-25 19:48:04 -0700 | [diff] [blame] | 1268 | mMetrics.updateMetrics(mCompatibilityInfo, |
| 1269 | mConfiguration.orientation, mConfiguration.screenLayout); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1270 | } |
| 1271 | mMetrics.scaledDensity = mMetrics.density * mConfiguration.fontScale; |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 1272 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1273 | String locale = null; |
| 1274 | if (mConfiguration.locale != null) { |
| 1275 | locale = mConfiguration.locale.getLanguage(); |
| 1276 | if (mConfiguration.locale.getCountry() != null) { |
| 1277 | locale += "-" + mConfiguration.locale.getCountry(); |
| 1278 | } |
| 1279 | } |
| 1280 | int width, height; |
| 1281 | if (mMetrics.widthPixels >= mMetrics.heightPixels) { |
| 1282 | width = mMetrics.widthPixels; |
| 1283 | height = mMetrics.heightPixels; |
| 1284 | } else { |
| 1285 | //noinspection SuspiciousNameCombination |
| 1286 | width = mMetrics.heightPixels; |
| 1287 | //noinspection SuspiciousNameCombination |
| 1288 | height = mMetrics.widthPixels; |
| 1289 | } |
| 1290 | int keyboardHidden = mConfiguration.keyboardHidden; |
Dianne Hackborn | 08d5b8f | 2010-08-04 11:12:40 -0700 | [diff] [blame^] | 1291 | if (keyboardHidden == Configuration.KEYBOARDHIDDEN_NO |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1292 | && mConfiguration.hardKeyboardHidden |
| 1293 | == Configuration.HARDKEYBOARDHIDDEN_YES) { |
| 1294 | keyboardHidden = Configuration.KEYBOARDHIDDEN_SOFT; |
| 1295 | } |
| 1296 | mAssets.setConfiguration(mConfiguration.mcc, mConfiguration.mnc, |
| 1297 | locale, mConfiguration.orientation, |
| 1298 | mConfiguration.touchscreen, |
| 1299 | (int)(mMetrics.density*160), mConfiguration.keyboard, |
| 1300 | keyboardHidden, mConfiguration.navigation, width, height, |
Tobias Haamel | 27b28b3 | 2010-02-09 23:09:17 +0100 | [diff] [blame] | 1301 | mConfiguration.screenLayout, mConfiguration.uiMode, sSdkVersion); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1302 | int N = mDrawableCache.size(); |
| 1303 | if (DEBUG_CONFIG) { |
| 1304 | Log.d(TAG, "Cleaning up drawables config changes: 0x" |
| 1305 | + Integer.toHexString(configChanges)); |
| 1306 | } |
| 1307 | for (int i=0; i<N; i++) { |
| 1308 | WeakReference<Drawable.ConstantState> ref = mDrawableCache.valueAt(i); |
| 1309 | if (ref != null) { |
| 1310 | Drawable.ConstantState cs = ref.get(); |
| 1311 | if (cs != null) { |
| 1312 | if (Configuration.needNewResources( |
| 1313 | configChanges, cs.getChangingConfigurations())) { |
| 1314 | if (DEBUG_CONFIG) { |
| 1315 | Log.d(TAG, "FLUSHING #0x" |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 1316 | + Long.toHexString(mDrawableCache.keyAt(i)) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1317 | + " / " + cs + " with changes: 0x" |
| 1318 | + Integer.toHexString(cs.getChangingConfigurations())); |
| 1319 | } |
| 1320 | mDrawableCache.setValueAt(i, null); |
| 1321 | } else if (DEBUG_CONFIG) { |
| 1322 | Log.d(TAG, "(Keeping #0x" |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 1323 | + Long.toHexString(mDrawableCache.keyAt(i)) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1324 | + " / " + cs + " with changes: 0x" |
| 1325 | + Integer.toHexString(cs.getChangingConfigurations()) |
| 1326 | + ")"); |
| 1327 | } |
| 1328 | } |
| 1329 | } |
| 1330 | } |
| 1331 | mDrawableCache.clear(); |
| 1332 | mColorStateListCache.clear(); |
| 1333 | flushLayoutCache(); |
| 1334 | } |
| 1335 | synchronized (mSync) { |
| 1336 | if (mPluralRule != null) { |
| 1337 | mPluralRule = PluralRules.ruleForLocale(config.locale); |
| 1338 | } |
| 1339 | } |
| 1340 | } |
| 1341 | |
| 1342 | /** |
| 1343 | * Update the system resources configuration if they have previously |
| 1344 | * been initialized. |
| 1345 | * |
| 1346 | * @hide |
| 1347 | */ |
| 1348 | public static void updateSystemConfiguration(Configuration config, DisplayMetrics metrics) { |
| 1349 | if (mSystem != null) { |
| 1350 | mSystem.updateConfiguration(config, metrics); |
| 1351 | //Log.i(TAG, "Updated system resources " + mSystem |
| 1352 | // + ": " + mSystem.getConfiguration()); |
| 1353 | } |
| 1354 | } |
| 1355 | |
| 1356 | /** |
| 1357 | * Return the current display metrics that are in effect for this resource |
| 1358 | * object. The returned object should be treated as read-only. |
| 1359 | * |
| 1360 | * @return The resource's current display metrics. |
| 1361 | */ |
| 1362 | public DisplayMetrics getDisplayMetrics() { |
| 1363 | return mMetrics; |
| 1364 | } |
| 1365 | |
| 1366 | /** |
| 1367 | * Return the current configuration that is in effect for this resource |
| 1368 | * object. The returned object should be treated as read-only. |
| 1369 | * |
| 1370 | * @return The resource's current configuration. |
| 1371 | */ |
| 1372 | public Configuration getConfiguration() { |
| 1373 | return mConfiguration; |
| 1374 | } |
Mitsuru Oshima | 9189cab | 2009-06-03 11:19:12 -0700 | [diff] [blame] | 1375 | |
| 1376 | /** |
| 1377 | * Return the compatibility mode information for the application. |
| 1378 | * The returned object should be treated as read-only. |
| 1379 | * |
| 1380 | * @return compatibility info. null if the app does not require compatibility mode. |
| 1381 | * @hide |
| 1382 | */ |
| 1383 | public CompatibilityInfo getCompatibilityInfo() { |
| 1384 | return mCompatibilityInfo; |
| 1385 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1386 | |
| 1387 | /** |
Dianne Hackborn | a53b828 | 2009-07-17 11:13:48 -0700 | [diff] [blame] | 1388 | * This is just for testing. |
| 1389 | * @hide |
| 1390 | */ |
| 1391 | public void setCompatibilityInfo(CompatibilityInfo ci) { |
| 1392 | mCompatibilityInfo = ci; |
| 1393 | updateConfiguration(mConfiguration, mMetrics); |
| 1394 | } |
| 1395 | |
| 1396 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1397 | * Return a resource identifier for the given resource name. A fully |
| 1398 | * qualified resource name is of the form "package:type/entry". The first |
| 1399 | * two components (package and type) are optional if defType and |
| 1400 | * defPackage, respectively, are specified here. |
| 1401 | * |
| 1402 | * <p>Note: use of this function is discouraged. It is much more |
| 1403 | * efficient to retrieve resources by identifier than by name. |
| 1404 | * |
| 1405 | * @param name The name of the desired resource. |
| 1406 | * @param defType Optional default resource type to find, if "type/" is |
| 1407 | * not included in the name. Can be null to require an |
| 1408 | * explicit type. |
| 1409 | * @param defPackage Optional default package to find, if "package:" is |
| 1410 | * not included in the name. Can be null to require an |
| 1411 | * explicit package. |
| 1412 | * |
| 1413 | * @return int The associated resource identifier. Returns 0 if no such |
| 1414 | * resource was found. (0 is not a valid resource ID.) |
| 1415 | */ |
| 1416 | public int getIdentifier(String name, String defType, String defPackage) { |
| 1417 | try { |
| 1418 | return Integer.parseInt(name); |
| 1419 | } catch (Exception e) { |
| 1420 | // Ignore |
| 1421 | } |
| 1422 | return mAssets.getResourceIdentifier(name, defType, defPackage); |
| 1423 | } |
| 1424 | |
| 1425 | /** |
| 1426 | * Return the full name for a given resource identifier. This name is |
| 1427 | * a single string of the form "package:type/entry". |
| 1428 | * |
| 1429 | * @param resid The resource identifier whose name is to be retrieved. |
| 1430 | * |
| 1431 | * @return A string holding the name of the resource. |
| 1432 | * |
| 1433 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 1434 | * |
| 1435 | * @see #getResourcePackageName |
| 1436 | * @see #getResourceTypeName |
| 1437 | * @see #getResourceEntryName |
| 1438 | */ |
| 1439 | public String getResourceName(int resid) throws NotFoundException { |
| 1440 | String str = mAssets.getResourceName(resid); |
| 1441 | if (str != null) return str; |
| 1442 | throw new NotFoundException("Unable to find resource ID #0x" |
| 1443 | + Integer.toHexString(resid)); |
| 1444 | } |
| 1445 | |
| 1446 | /** |
| 1447 | * Return the package name for a given resource identifier. |
| 1448 | * |
| 1449 | * @param resid The resource identifier whose package name is to be |
| 1450 | * retrieved. |
| 1451 | * |
| 1452 | * @return A string holding the package name of the resource. |
| 1453 | * |
| 1454 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 1455 | * |
| 1456 | * @see #getResourceName |
| 1457 | */ |
| 1458 | public String getResourcePackageName(int resid) throws NotFoundException { |
| 1459 | String str = mAssets.getResourcePackageName(resid); |
| 1460 | if (str != null) return str; |
| 1461 | throw new NotFoundException("Unable to find resource ID #0x" |
| 1462 | + Integer.toHexString(resid)); |
| 1463 | } |
| 1464 | |
| 1465 | /** |
| 1466 | * Return the type name for a given resource identifier. |
| 1467 | * |
| 1468 | * @param resid The resource identifier whose type name is to be |
| 1469 | * retrieved. |
| 1470 | * |
| 1471 | * @return A string holding the type name of the resource. |
| 1472 | * |
| 1473 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 1474 | * |
| 1475 | * @see #getResourceName |
| 1476 | */ |
| 1477 | public String getResourceTypeName(int resid) throws NotFoundException { |
| 1478 | String str = mAssets.getResourceTypeName(resid); |
| 1479 | if (str != null) return str; |
| 1480 | throw new NotFoundException("Unable to find resource ID #0x" |
| 1481 | + Integer.toHexString(resid)); |
| 1482 | } |
| 1483 | |
| 1484 | /** |
| 1485 | * Return the entry name for a given resource identifier. |
| 1486 | * |
| 1487 | * @param resid The resource identifier whose entry name is to be |
| 1488 | * retrieved. |
| 1489 | * |
| 1490 | * @return A string holding the entry name of the resource. |
| 1491 | * |
| 1492 | * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| 1493 | * |
| 1494 | * @see #getResourceName |
| 1495 | */ |
| 1496 | public String getResourceEntryName(int resid) throws NotFoundException { |
| 1497 | String str = mAssets.getResourceEntryName(resid); |
| 1498 | if (str != null) return str; |
| 1499 | throw new NotFoundException("Unable to find resource ID #0x" |
| 1500 | + Integer.toHexString(resid)); |
| 1501 | } |
| 1502 | |
| 1503 | /** |
| 1504 | * Parse a series of {@link android.R.styleable#Extra <extra>} tags from |
| 1505 | * an XML file. You call this when you are at the parent tag of the |
| 1506 | * extra tags, and it return once all of the child tags have been parsed. |
| 1507 | * This will call {@link #parseBundleExtra} for each extra tag encountered. |
| 1508 | * |
| 1509 | * @param parser The parser from which to retrieve the extras. |
| 1510 | * @param outBundle A Bundle in which to place all parsed extras. |
| 1511 | * @throws XmlPullParserException |
| 1512 | * @throws IOException |
| 1513 | */ |
| 1514 | public void parseBundleExtras(XmlResourceParser parser, Bundle outBundle) |
| 1515 | throws XmlPullParserException, IOException { |
| 1516 | int outerDepth = parser.getDepth(); |
| 1517 | int type; |
| 1518 | while ((type=parser.next()) != XmlPullParser.END_DOCUMENT |
| 1519 | && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { |
| 1520 | if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { |
| 1521 | continue; |
| 1522 | } |
| 1523 | |
| 1524 | String nodeName = parser.getName(); |
| 1525 | if (nodeName.equals("extra")) { |
| 1526 | parseBundleExtra("extra", parser, outBundle); |
| 1527 | XmlUtils.skipCurrentTag(parser); |
| 1528 | |
| 1529 | } else { |
| 1530 | XmlUtils.skipCurrentTag(parser); |
| 1531 | } |
| 1532 | } |
| 1533 | } |
| 1534 | |
| 1535 | /** |
| 1536 | * Parse a name/value pair out of an XML tag holding that data. The |
| 1537 | * AttributeSet must be holding the data defined by |
| 1538 | * {@link android.R.styleable#Extra}. The following value types are supported: |
| 1539 | * <ul> |
| 1540 | * <li> {@link TypedValue#TYPE_STRING}: |
| 1541 | * {@link Bundle#putCharSequence Bundle.putCharSequence()} |
| 1542 | * <li> {@link TypedValue#TYPE_INT_BOOLEAN}: |
| 1543 | * {@link Bundle#putCharSequence Bundle.putBoolean()} |
| 1544 | * <li> {@link TypedValue#TYPE_FIRST_INT}-{@link TypedValue#TYPE_LAST_INT}: |
| 1545 | * {@link Bundle#putCharSequence Bundle.putBoolean()} |
| 1546 | * <li> {@link TypedValue#TYPE_FLOAT}: |
| 1547 | * {@link Bundle#putCharSequence Bundle.putFloat()} |
| 1548 | * </ul> |
| 1549 | * |
| 1550 | * @param tagName The name of the tag these attributes come from; this is |
| 1551 | * only used for reporting error messages. |
| 1552 | * @param attrs The attributes from which to retrieve the name/value pair. |
| 1553 | * @param outBundle The Bundle in which to place the parsed value. |
| 1554 | * @throws XmlPullParserException If the attributes are not valid. |
| 1555 | */ |
| 1556 | public void parseBundleExtra(String tagName, AttributeSet attrs, |
| 1557 | Bundle outBundle) throws XmlPullParserException { |
| 1558 | TypedArray sa = obtainAttributes(attrs, |
| 1559 | com.android.internal.R.styleable.Extra); |
| 1560 | |
| 1561 | String name = sa.getString( |
| 1562 | com.android.internal.R.styleable.Extra_name); |
| 1563 | if (name == null) { |
| 1564 | sa.recycle(); |
| 1565 | throw new XmlPullParserException("<" + tagName |
| 1566 | + "> requires an android:name attribute at " |
| 1567 | + attrs.getPositionDescription()); |
| 1568 | } |
| 1569 | |
| 1570 | TypedValue v = sa.peekValue( |
| 1571 | com.android.internal.R.styleable.Extra_value); |
| 1572 | if (v != null) { |
| 1573 | if (v.type == TypedValue.TYPE_STRING) { |
| 1574 | CharSequence cs = v.coerceToString(); |
| 1575 | outBundle.putCharSequence(name, cs); |
| 1576 | } else if (v.type == TypedValue.TYPE_INT_BOOLEAN) { |
| 1577 | outBundle.putBoolean(name, v.data != 0); |
| 1578 | } else if (v.type >= TypedValue.TYPE_FIRST_INT |
| 1579 | && v.type <= TypedValue.TYPE_LAST_INT) { |
| 1580 | outBundle.putInt(name, v.data); |
| 1581 | } else if (v.type == TypedValue.TYPE_FLOAT) { |
| 1582 | outBundle.putFloat(name, v.getFloat()); |
| 1583 | } else { |
| 1584 | sa.recycle(); |
| 1585 | throw new XmlPullParserException("<" + tagName |
| 1586 | + "> only supports string, integer, float, color, and boolean at " |
| 1587 | + attrs.getPositionDescription()); |
| 1588 | } |
| 1589 | } else { |
| 1590 | sa.recycle(); |
| 1591 | throw new XmlPullParserException("<" + tagName |
| 1592 | + "> requires an android:value or android:resource attribute at " |
| 1593 | + attrs.getPositionDescription()); |
| 1594 | } |
| 1595 | |
| 1596 | sa.recycle(); |
| 1597 | } |
| 1598 | |
| 1599 | /** |
| 1600 | * Retrieve underlying AssetManager storage for these resources. |
| 1601 | */ |
| 1602 | public final AssetManager getAssets() { |
| 1603 | return mAssets; |
| 1604 | } |
| 1605 | |
| 1606 | /** |
| 1607 | * Call this to remove all cached loaded layout resources from the |
| 1608 | * Resources object. Only intended for use with performance testing |
| 1609 | * tools. |
| 1610 | */ |
| 1611 | public final void flushLayoutCache() { |
| 1612 | synchronized (mCachedXmlBlockIds) { |
| 1613 | // First see if this block is in our cache. |
| 1614 | final int num = mCachedXmlBlockIds.length; |
| 1615 | for (int i=0; i<num; i++) { |
| 1616 | mCachedXmlBlockIds[i] = -0; |
| 1617 | XmlBlock oldBlock = mCachedXmlBlocks[i]; |
| 1618 | if (oldBlock != null) { |
| 1619 | oldBlock.close(); |
| 1620 | } |
| 1621 | mCachedXmlBlocks[i] = null; |
| 1622 | } |
| 1623 | } |
| 1624 | } |
| 1625 | |
| 1626 | /** |
| 1627 | * Start preloading of resource data using this Resources object. Only |
| 1628 | * for use by the zygote process for loading common system resources. |
| 1629 | * {@hide} |
| 1630 | */ |
| 1631 | public final void startPreloading() { |
| 1632 | synchronized (mSync) { |
| 1633 | if (mPreloaded) { |
| 1634 | throw new IllegalStateException("Resources already preloaded"); |
| 1635 | } |
| 1636 | mPreloaded = true; |
| 1637 | mPreloading = true; |
| 1638 | } |
| 1639 | } |
| 1640 | |
| 1641 | /** |
| 1642 | * Called by zygote when it is done preloading resources, to change back |
| 1643 | * to normal Resources operation. |
| 1644 | */ |
| 1645 | public final void finishPreloading() { |
| 1646 | if (mPreloading) { |
| 1647 | mPreloading = false; |
| 1648 | flushLayoutCache(); |
| 1649 | } |
| 1650 | } |
| 1651 | |
| 1652 | /*package*/ Drawable loadDrawable(TypedValue value, int id) |
| 1653 | throws NotFoundException { |
| 1654 | |
| 1655 | if (TRACE_FOR_PRELOAD) { |
| 1656 | // Log only framework resources |
| 1657 | if ((id >>> 24) == 0x1) { |
| 1658 | final String name = getResourceName(id); |
| 1659 | if (name != null) android.util.Log.d("PreloadDrawable", name); |
| 1660 | } |
| 1661 | } |
| 1662 | |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 1663 | final long key = (((long) value.assetCookie) << 32) | value.data; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1664 | Drawable dr = getCachedDrawable(key); |
| 1665 | |
| 1666 | if (dr != null) { |
| 1667 | return dr; |
| 1668 | } |
| 1669 | |
Dianne Hackborn | 8cae124 | 2009-09-10 14:32:16 -0700 | [diff] [blame] | 1670 | Drawable.ConstantState cs = sPreloadedDrawables.get(key); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1671 | if (cs != null) { |
Dianne Hackborn | c297480 | 2009-09-13 18:22:19 -0700 | [diff] [blame] | 1672 | dr = cs.newDrawable(this); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1673 | } else { |
| 1674 | if (value.type >= TypedValue.TYPE_FIRST_COLOR_INT && |
| 1675 | value.type <= TypedValue.TYPE_LAST_COLOR_INT) { |
| 1676 | dr = new ColorDrawable(value.data); |
| 1677 | } |
| 1678 | |
| 1679 | if (dr == null) { |
| 1680 | if (value.string == null) { |
| 1681 | throw new NotFoundException( |
| 1682 | "Resource is not a Drawable (color or path): " + value); |
| 1683 | } |
| 1684 | |
| 1685 | String file = value.string.toString(); |
| 1686 | |
| 1687 | if (DEBUG_LOAD) Log.v(TAG, "Loading drawable for cookie " |
| 1688 | + value.assetCookie + ": " + file); |
| 1689 | |
| 1690 | if (file.endsWith(".xml")) { |
| 1691 | try { |
| 1692 | XmlResourceParser rp = loadXmlResourceParser( |
| 1693 | file, id, value.assetCookie, "drawable"); |
| 1694 | dr = Drawable.createFromXml(this, rp); |
| 1695 | rp.close(); |
| 1696 | } catch (Exception e) { |
| 1697 | NotFoundException rnf = new NotFoundException( |
| 1698 | "File " + file + " from drawable resource ID #0x" |
| 1699 | + Integer.toHexString(id)); |
| 1700 | rnf.initCause(e); |
| 1701 | throw rnf; |
| 1702 | } |
| 1703 | |
| 1704 | } else { |
| 1705 | try { |
| 1706 | InputStream is = mAssets.openNonAsset( |
Dianne Hackborn | 19382ac | 2009-09-11 21:13:37 -0700 | [diff] [blame] | 1707 | value.assetCookie, file, AssetManager.ACCESS_STREAMING); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1708 | // System.out.println("Opened file " + file + ": " + is); |
Dianne Hackborn | 7341d7a | 2009-08-14 11:37:52 -0700 | [diff] [blame] | 1709 | dr = Drawable.createFromResourceStream(this, value, is, |
| 1710 | file, null); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1711 | is.close(); |
| 1712 | // System.out.println("Created stream: " + dr); |
| 1713 | } catch (Exception e) { |
| 1714 | NotFoundException rnf = new NotFoundException( |
| 1715 | "File " + file + " from drawable resource ID #0x" |
| 1716 | + Integer.toHexString(id)); |
| 1717 | rnf.initCause(e); |
| 1718 | throw rnf; |
| 1719 | } |
| 1720 | } |
| 1721 | } |
| 1722 | } |
| 1723 | |
| 1724 | if (dr != null) { |
| 1725 | dr.setChangingConfigurations(value.changingConfigurations); |
| 1726 | cs = dr.getConstantState(); |
| 1727 | if (cs != null) { |
| 1728 | if (mPreloading) { |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 1729 | sPreloadedDrawables.put(key, cs); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1730 | } else { |
| 1731 | synchronized (mTmpValue) { |
| 1732 | //Log.i(TAG, "Saving cached drawable @ #" + |
| 1733 | // Integer.toHexString(key.intValue()) |
| 1734 | // + " in " + this + ": " + cs); |
| 1735 | mDrawableCache.put(key, new WeakReference<Drawable.ConstantState>(cs)); |
| 1736 | } |
| 1737 | } |
| 1738 | } |
| 1739 | } |
| 1740 | |
| 1741 | return dr; |
| 1742 | } |
| 1743 | |
Romain Guy | fdbf6a7 | 2009-06-18 15:13:40 -0700 | [diff] [blame] | 1744 | private Drawable getCachedDrawable(long key) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1745 | synchronized (mTmpValue) { |
| 1746 | WeakReference<Drawable.ConstantState> wr = mDrawableCache.get(key); |
| 1747 | if (wr != null) { // we have the key |
| 1748 | Drawable.ConstantState entry = wr.get(); |
| 1749 | if (entry != null) { |
| 1750 | //Log.i(TAG, "Returning cached drawable @ #" + |
| 1751 | // Integer.toHexString(((Integer)key).intValue()) |
| 1752 | // + " in " + this + ": " + entry); |
Dianne Hackborn | c297480 | 2009-09-13 18:22:19 -0700 | [diff] [blame] | 1753 | return entry.newDrawable(this); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1754 | } |
| 1755 | else { // our entry has been purged |
| 1756 | mDrawableCache.delete(key); |
| 1757 | } |
| 1758 | } |
| 1759 | } |
| 1760 | return null; |
| 1761 | } |
| 1762 | |
| 1763 | /*package*/ ColorStateList loadColorStateList(TypedValue value, int id) |
| 1764 | throws NotFoundException { |
| 1765 | if (TRACE_FOR_PRELOAD) { |
| 1766 | // Log only framework resources |
| 1767 | if ((id >>> 24) == 0x1) { |
| 1768 | final String name = getResourceName(id); |
| 1769 | if (name != null) android.util.Log.d("PreloadColorStateList", name); |
| 1770 | } |
| 1771 | } |
| 1772 | |
| 1773 | final int key = (value.assetCookie << 24) | value.data; |
| 1774 | |
| 1775 | ColorStateList csl; |
| 1776 | |
| 1777 | if (value.type >= TypedValue.TYPE_FIRST_COLOR_INT && |
| 1778 | value.type <= TypedValue.TYPE_LAST_COLOR_INT) { |
| 1779 | |
| 1780 | csl = mPreloadedColorStateLists.get(key); |
| 1781 | if (csl != null) { |
| 1782 | return csl; |
| 1783 | } |
| 1784 | |
| 1785 | csl = ColorStateList.valueOf(value.data); |
| 1786 | if (mPreloading) { |
| 1787 | mPreloadedColorStateLists.put(key, csl); |
| 1788 | } |
| 1789 | |
| 1790 | return csl; |
| 1791 | } |
| 1792 | |
| 1793 | csl = getCachedColorStateList(key); |
| 1794 | if (csl != null) { |
| 1795 | return csl; |
| 1796 | } |
| 1797 | |
| 1798 | csl = mPreloadedColorStateLists.get(key); |
| 1799 | if (csl != null) { |
| 1800 | return csl; |
| 1801 | } |
| 1802 | |
| 1803 | if (value.string == null) { |
| 1804 | throw new NotFoundException( |
| 1805 | "Resource is not a ColorStateList (color or path): " + value); |
| 1806 | } |
| 1807 | |
| 1808 | String file = value.string.toString(); |
| 1809 | |
| 1810 | if (file.endsWith(".xml")) { |
| 1811 | try { |
| 1812 | XmlResourceParser rp = loadXmlResourceParser( |
| 1813 | file, id, value.assetCookie, "colorstatelist"); |
| 1814 | csl = ColorStateList.createFromXml(this, rp); |
| 1815 | rp.close(); |
| 1816 | } catch (Exception e) { |
| 1817 | NotFoundException rnf = new NotFoundException( |
| 1818 | "File " + file + " from color state list resource ID #0x" |
| 1819 | + Integer.toHexString(id)); |
| 1820 | rnf.initCause(e); |
| 1821 | throw rnf; |
| 1822 | } |
| 1823 | } else { |
| 1824 | throw new NotFoundException( |
| 1825 | "File " + file + " from drawable resource ID #0x" |
| 1826 | + Integer.toHexString(id) + ": .xml extension required"); |
| 1827 | } |
| 1828 | |
| 1829 | if (csl != null) { |
| 1830 | if (mPreloading) { |
| 1831 | mPreloadedColorStateLists.put(key, csl); |
| 1832 | } else { |
| 1833 | synchronized (mTmpValue) { |
| 1834 | //Log.i(TAG, "Saving cached color state list @ #" + |
| 1835 | // Integer.toHexString(key.intValue()) |
| 1836 | // + " in " + this + ": " + csl); |
| 1837 | mColorStateListCache.put( |
| 1838 | key, new WeakReference<ColorStateList>(csl)); |
| 1839 | } |
| 1840 | } |
| 1841 | } |
| 1842 | |
| 1843 | return csl; |
| 1844 | } |
| 1845 | |
| 1846 | private ColorStateList getCachedColorStateList(int key) { |
| 1847 | synchronized (mTmpValue) { |
| 1848 | WeakReference<ColorStateList> wr = mColorStateListCache.get(key); |
| 1849 | if (wr != null) { // we have the key |
| 1850 | ColorStateList entry = wr.get(); |
| 1851 | if (entry != null) { |
| 1852 | //Log.i(TAG, "Returning cached color state list @ #" + |
| 1853 | // Integer.toHexString(((Integer)key).intValue()) |
| 1854 | // + " in " + this + ": " + entry); |
| 1855 | return entry; |
| 1856 | } |
| 1857 | else { // our entry has been purged |
| 1858 | mColorStateListCache.delete(key); |
| 1859 | } |
| 1860 | } |
| 1861 | } |
| 1862 | return null; |
| 1863 | } |
| 1864 | |
| 1865 | /*package*/ XmlResourceParser loadXmlResourceParser(int id, String type) |
| 1866 | throws NotFoundException { |
| 1867 | synchronized (mTmpValue) { |
| 1868 | TypedValue value = mTmpValue; |
| 1869 | getValue(id, value, true); |
| 1870 | if (value.type == TypedValue.TYPE_STRING) { |
| 1871 | return loadXmlResourceParser(value.string.toString(), id, |
| 1872 | value.assetCookie, type); |
| 1873 | } |
| 1874 | throw new NotFoundException( |
| 1875 | "Resource ID #0x" + Integer.toHexString(id) + " type #0x" |
| 1876 | + Integer.toHexString(value.type) + " is not valid"); |
| 1877 | } |
| 1878 | } |
| 1879 | |
| 1880 | /*package*/ XmlResourceParser loadXmlResourceParser(String file, int id, |
| 1881 | int assetCookie, String type) throws NotFoundException { |
| 1882 | if (id != 0) { |
| 1883 | try { |
| 1884 | // These may be compiled... |
| 1885 | synchronized (mCachedXmlBlockIds) { |
| 1886 | // First see if this block is in our cache. |
| 1887 | final int num = mCachedXmlBlockIds.length; |
| 1888 | for (int i=0; i<num; i++) { |
| 1889 | if (mCachedXmlBlockIds[i] == id) { |
| 1890 | //System.out.println("**** REUSING XML BLOCK! id=" |
| 1891 | // + id + ", index=" + i); |
| 1892 | return mCachedXmlBlocks[i].newParser(); |
| 1893 | } |
| 1894 | } |
| 1895 | |
| 1896 | // Not in the cache, create a new block and put it at |
| 1897 | // the next slot in the cache. |
| 1898 | XmlBlock block = mAssets.openXmlBlockAsset( |
| 1899 | assetCookie, file); |
| 1900 | if (block != null) { |
| 1901 | int pos = mLastCachedXmlBlockIndex+1; |
| 1902 | if (pos >= num) pos = 0; |
| 1903 | mLastCachedXmlBlockIndex = pos; |
| 1904 | XmlBlock oldBlock = mCachedXmlBlocks[pos]; |
| 1905 | if (oldBlock != null) { |
| 1906 | oldBlock.close(); |
| 1907 | } |
| 1908 | mCachedXmlBlockIds[pos] = id; |
| 1909 | mCachedXmlBlocks[pos] = block; |
| 1910 | //System.out.println("**** CACHING NEW XML BLOCK! id=" |
| 1911 | // + id + ", index=" + pos); |
| 1912 | return block.newParser(); |
| 1913 | } |
| 1914 | } |
| 1915 | } catch (Exception e) { |
| 1916 | NotFoundException rnf = new NotFoundException( |
| 1917 | "File " + file + " from xml type " + type + " resource ID #0x" |
| 1918 | + Integer.toHexString(id)); |
| 1919 | rnf.initCause(e); |
| 1920 | throw rnf; |
| 1921 | } |
| 1922 | } |
| 1923 | |
| 1924 | throw new NotFoundException( |
| 1925 | "File " + file + " from xml type " + type + " resource ID #0x" |
| 1926 | + Integer.toHexString(id)); |
| 1927 | } |
| 1928 | |
Mitsuru Oshima | ddd1253 | 2009-07-14 10:41:13 -0700 | [diff] [blame] | 1929 | /** |
| 1930 | * Returns the display adjusted for the Resources' metrics. |
| 1931 | * @hide |
| 1932 | */ |
| 1933 | public Display getDefaultDisplay(Display defaultDisplay) { |
| 1934 | if (mDefaultDisplay == null) { |
| 1935 | if (!mCompatibilityInfo.isScalingRequired() && mCompatibilityInfo.supportsScreen()) { |
| 1936 | // the app supports the display. just use the default one. |
| 1937 | mDefaultDisplay = defaultDisplay; |
| 1938 | } else { |
| 1939 | // display needs adjustment. |
| 1940 | mDefaultDisplay = Display.createMetricsBasedDisplay( |
| 1941 | defaultDisplay.getDisplayId(), mMetrics); |
| 1942 | } |
| 1943 | } |
| 1944 | return mDefaultDisplay; |
| 1945 | } |
| 1946 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1947 | private TypedArray getCachedStyledAttributes(int len) { |
| 1948 | synchronized (mTmpValue) { |
| 1949 | TypedArray attrs = mCachedStyledAttributes; |
| 1950 | if (attrs != null) { |
| 1951 | mCachedStyledAttributes = null; |
| 1952 | |
| 1953 | attrs.mLength = len; |
| 1954 | int fullLen = len * AssetManager.STYLE_NUM_ENTRIES; |
| 1955 | if (attrs.mData.length >= fullLen) { |
| 1956 | return attrs; |
| 1957 | } |
| 1958 | attrs.mData = new int[fullLen]; |
| 1959 | attrs.mIndices = new int[1+len]; |
| 1960 | return attrs; |
| 1961 | } |
| 1962 | return new TypedArray(this, |
| 1963 | new int[len*AssetManager.STYLE_NUM_ENTRIES], |
| 1964 | new int[1+len], len); |
| 1965 | } |
| 1966 | } |
| 1967 | |
| 1968 | private Resources() { |
| 1969 | mAssets = AssetManager.getSystem(); |
| 1970 | // NOTE: Intentionally leaving this uninitialized (all values set |
| 1971 | // to zero), so that anyone who tries to do something that requires |
| 1972 | // metrics will get a very wrong value. |
| 1973 | mConfiguration.setToDefaults(); |
| 1974 | mMetrics.setToDefaults(); |
| 1975 | updateConfiguration(null, null); |
| 1976 | mAssets.ensureStringBlocks(); |
Mitsuru Oshima | 9189cab | 2009-06-03 11:19:12 -0700 | [diff] [blame] | 1977 | mCompatibilityInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1978 | } |
| 1979 | } |