| /* |
| * Copyright (C) 2006 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.content.res; |
| |
| import android.animation.Animator; |
| import android.animation.StateListAnimator; |
| import android.annotation.AnimRes; |
| import android.annotation.AnyRes; |
| import android.annotation.ArrayRes; |
| import android.annotation.AttrRes; |
| import android.annotation.BoolRes; |
| import android.annotation.ColorInt; |
| import android.annotation.ColorRes; |
| import android.annotation.DimenRes; |
| import android.annotation.DrawableRes; |
| import android.annotation.FractionRes; |
| import android.annotation.IntegerRes; |
| import android.annotation.LayoutRes; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.PluralsRes; |
| import android.annotation.RawRes; |
| import android.annotation.StringRes; |
| import android.annotation.StyleRes; |
| import android.annotation.StyleableRes; |
| import android.annotation.XmlRes; |
| import android.content.pm.ActivityInfo; |
| import android.graphics.Movie; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.Drawable.ConstantState; |
| import android.graphics.drawable.DrawableInflater; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.util.AttributeSet; |
| import android.util.DisplayMetrics; |
| import android.util.Log; |
| import android.util.LongSparseArray; |
| import android.util.Pools.SynchronizedPool; |
| import android.util.TypedValue; |
| import android.view.ViewDebug; |
| import android.view.ViewHierarchyEncoder; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.GrowingArrayUtils; |
| import com.android.internal.util.XmlUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.lang.ref.WeakReference; |
| import java.util.ArrayList; |
| |
| /** |
| * Class for accessing an application's resources. This sits on top of the |
| * asset manager of the application (accessible through {@link #getAssets}) and |
| * provides a high-level API for getting typed data from the assets. |
| * |
| * <p>The Android resource system keeps track of all non-code assets associated with an |
| * application. You can use this class to access your application's resources. You can generally |
| * acquire the {@link android.content.res.Resources} instance associated with your application |
| * with {@link android.content.Context#getResources getResources()}.</p> |
| * |
| * <p>The Android SDK tools compile your application's resources into the application binary |
| * at build time. To use a resource, you must install it correctly in the source tree (inside |
| * your project's {@code res/} directory) and build your application. As part of the build |
| * process, the SDK tools generate symbols for each resource, which you can use in your application |
| * code to access the resources.</p> |
| * |
| * <p>Using application resources makes it easy to update various characteristics of your |
| * application without modifying code, and—by providing sets of alternative |
| * resources—enables you to optimize your application for a variety of device configurations |
| * (such as for different languages and screen sizes). This is an important aspect of developing |
| * Android applications that are compatible on different types of devices.</p> |
| * |
| * <p>For more information about using resources, see the documentation about <a |
| * href="{@docRoot}guide/topics/resources/index.html">Application Resources</a>.</p> |
| */ |
| public class Resources { |
| static final String TAG = "Resources"; |
| |
| private static final Object sSync = new Object(); |
| |
| // Used by BridgeResources in layoutlib |
| static Resources mSystem = null; |
| |
| private ResourcesImpl mResourcesImpl; |
| |
| // Pool of TypedArrays targeted to this Resources object. |
| final SynchronizedPool<TypedArray> mTypedArrayPool = new SynchronizedPool<>(5); |
| |
| /** Used to inflate drawable objects from XML. */ |
| private DrawableInflater mDrawableInflater; |
| |
| /** Lock object used to protect access to {@link #mTmpValue}. */ |
| private final Object mTmpValueLock = new Object(); |
| |
| /** Single-item pool used to minimize TypedValue allocations. */ |
| private TypedValue mTmpValue = new TypedValue(); |
| |
| final ClassLoader mClassLoader; |
| |
| /** |
| * WeakReferences to Themes that were constructed from this Resources object. |
| * We keep track of these in case our underlying implementation is changed, in which case |
| * the Themes must also get updated ThemeImpls. |
| */ |
| private final ArrayList<WeakReference<Theme>> mThemeRefs = new ArrayList<>(); |
| |
| /** |
| * Returns the most appropriate default theme for the specified target SDK version. |
| * <ul> |
| * <li>Below API 11: Gingerbread |
| * <li>APIs 11 thru 14: Holo |
| * <li>APIs 14 thru XX: Device default dark |
| * <li>API XX and above: Device default light with dark action bar |
| * </ul> |
| * |
| * @param curTheme The current theme, or 0 if not specified. |
| * @param targetSdkVersion The target SDK version. |
| * @return A theme resource identifier |
| * @hide |
| */ |
| public static int selectDefaultTheme(int curTheme, int targetSdkVersion) { |
| return selectSystemTheme(curTheme, targetSdkVersion, |
| com.android.internal.R.style.Theme, |
| com.android.internal.R.style.Theme_Holo, |
| com.android.internal.R.style.Theme_DeviceDefault, |
| com.android.internal.R.style.Theme_DeviceDefault_Light_DarkActionBar); |
| } |
| |
| /** @hide */ |
| public static int selectSystemTheme(int curTheme, int targetSdkVersion, int orig, int holo, |
| int dark, int deviceDefault) { |
| if (curTheme != 0) { |
| return curTheme; |
| } |
| if (targetSdkVersion < Build.VERSION_CODES.HONEYCOMB) { |
| return orig; |
| } |
| if (targetSdkVersion < Build.VERSION_CODES.ICE_CREAM_SANDWICH) { |
| return holo; |
| } |
| if (targetSdkVersion < Build.VERSION_CODES.CUR_DEVELOPMENT) { |
| return dark; |
| } |
| return deviceDefault; |
| } |
| |
| /** |
| * Return a global shared Resources object that provides access to only |
| * system resources (no application resources), and is not configured for |
| * the current screen (can not use dimension units, does not change based |
| * on orientation, etc). |
| */ |
| public static Resources getSystem() { |
| synchronized (sSync) { |
| Resources ret = mSystem; |
| if (ret == null) { |
| ret = new Resources(); |
| mSystem = ret; |
| } |
| return ret; |
| } |
| } |
| |
| /** |
| * This exception is thrown by the resource APIs when a requested resource |
| * can not be found. |
| */ |
| public static class NotFoundException extends RuntimeException { |
| public NotFoundException() { |
| } |
| |
| public NotFoundException(String name) { |
| super(name); |
| } |
| |
| public NotFoundException(String name, Exception cause) { |
| super(name, cause); |
| } |
| } |
| |
| /** |
| * Create a new Resources object on top of an existing set of assets in an |
| * AssetManager. |
| * |
| * @param assets Previously created AssetManager. |
| * @param metrics Current display metrics to consider when |
| * selecting/computing resource values. |
| * @param config Desired device configuration to consider when |
| * selecting/computing resource values (optional). |
| */ |
| public Resources(AssetManager assets, DisplayMetrics metrics, Configuration config) { |
| this(null); |
| mResourcesImpl = new ResourcesImpl(assets, metrics, config, |
| CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO); |
| } |
| |
| /** |
| * Creates a new Resources object with CompatibilityInfo. |
| * |
| * @param classLoader class loader for the package used to load custom |
| * resource classes, may be {@code null} to use system |
| * class loader |
| * @hide |
| */ |
| public Resources(@Nullable ClassLoader classLoader) { |
| mClassLoader = classLoader == null ? ClassLoader.getSystemClassLoader() : classLoader; |
| } |
| |
| /** |
| * Only for creating the System resources. |
| */ |
| private Resources() { |
| this(null); |
| |
| final DisplayMetrics metrics = new DisplayMetrics(); |
| metrics.setToDefaults(); |
| |
| final Configuration config = new Configuration(); |
| config.setToDefaults(); |
| |
| mResourcesImpl = new ResourcesImpl(AssetManager.getSystem(), metrics, config, |
| CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO); |
| } |
| |
| /** |
| * Set the underlying implementation (containing all the resources and caches) |
| * and updates all Theme references to new implementations as well. |
| * @hide |
| */ |
| public void setImpl(ResourcesImpl impl) { |
| if (impl == mResourcesImpl) { |
| return; |
| } |
| |
| mResourcesImpl = impl; |
| |
| // Create new ThemeImpls that are identical to the ones we have. |
| synchronized (mThemeRefs) { |
| final int count = mThemeRefs.size(); |
| for (int i = 0; i < count; i++) { |
| WeakReference<Theme> weakThemeRef = mThemeRefs.get(i); |
| Theme theme = weakThemeRef != null ? weakThemeRef.get() : null; |
| if (theme != null) { |
| theme.setImpl(mResourcesImpl.newThemeImpl(theme.getKey())); |
| } |
| } |
| } |
| } |
| |
| /** |
| * @hide |
| */ |
| public ResourcesImpl getImpl() { |
| return mResourcesImpl; |
| } |
| |
| /** |
| * @hide |
| */ |
| public ClassLoader getClassLoader() { |
| return mClassLoader; |
| } |
| |
| /** |
| * @return the inflater used to create drawable objects |
| * @hide Pending API finalization. |
| */ |
| public final DrawableInflater getDrawableInflater() { |
| if (mDrawableInflater == null) { |
| mDrawableInflater = new DrawableInflater(this, mClassLoader); |
| } |
| return mDrawableInflater; |
| } |
| |
| /** |
| * Used by AnimatorInflater. |
| * |
| * @hide |
| */ |
| public ConfigurationBoundResourceCache<Animator> getAnimatorCache() { |
| return mResourcesImpl.getAnimatorCache(); |
| } |
| |
| /** |
| * Used by AnimatorInflater. |
| * |
| * @hide |
| */ |
| public ConfigurationBoundResourceCache<StateListAnimator> getStateListAnimatorCache() { |
| return mResourcesImpl.getStateListAnimatorCache(); |
| } |
| |
| /** |
| * Return the string value associated with a particular resource ID. The |
| * returned object will be a String if this is a plain string; it will be |
| * some other type of CharSequence if it is styled. |
| * {@more} |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return CharSequence The string data associated with the resource, plus |
| * possibly styled text information. |
| */ |
| @NonNull public CharSequence getText(@StringRes int id) throws NotFoundException { |
| CharSequence res = mResourcesImpl.getAssets().getResourceText(id); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("String resource ID #0x" |
| + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Returns the character sequence necessary for grammatically correct pluralization |
| * of the given resource ID for the given quantity. |
| * Note that the character sequence is selected based solely on grammatical necessity, |
| * and that such rules differ between languages. Do not assume you know which string |
| * will be returned for a given quantity. See |
| * <a href="{@docRoot}guide/topics/resources/string-resource.html#Plurals">String Resources</a> |
| * for more detail. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param quantity The number used to get the correct string for the current language's |
| * plural rules. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return CharSequence The string data associated with the resource, plus |
| * possibly styled text information. |
| */ |
| @NonNull |
| public CharSequence getQuantityText(@PluralsRes int id, int quantity) |
| throws NotFoundException { |
| return mResourcesImpl.getQuantityText(id, quantity); |
| } |
| |
| /** |
| * Return the string value associated with a particular resource ID. It |
| * will be stripped of any styled text information. |
| * {@more} |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return String The string data associated with the resource, |
| * stripped of styled text information. |
| */ |
| @NonNull |
| public String getString(@StringRes int id) throws NotFoundException { |
| return getText(id).toString(); |
| } |
| |
| |
| /** |
| * Return the string value associated with a particular resource ID, |
| * substituting the format arguments as defined in {@link java.util.Formatter} |
| * and {@link java.lang.String#format}. It will be stripped of any styled text |
| * information. |
| * {@more} |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @param formatArgs The format arguments that will be used for substitution. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return String The string data associated with the resource, |
| * stripped of styled text information. |
| */ |
| @NonNull |
| public String getString(@StringRes int id, Object... formatArgs) throws NotFoundException { |
| final String raw = getString(id); |
| return String.format(mResourcesImpl.getConfiguration().getLocales().get(0), raw, |
| formatArgs); |
| } |
| |
| /** |
| * Formats the string necessary for grammatically correct pluralization |
| * of the given resource ID for the given quantity, using the given arguments. |
| * Note that the string is selected based solely on grammatical necessity, |
| * and that such rules differ between languages. Do not assume you know which string |
| * will be returned for a given quantity. See |
| * <a href="{@docRoot}guide/topics/resources/string-resource.html#Plurals">String Resources</a> |
| * for more detail. |
| * |
| * <p>Substitution of format arguments works as if using |
| * {@link java.util.Formatter} and {@link java.lang.String#format}. |
| * The resulting string will be stripped of any styled text information. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param quantity The number used to get the correct string for the current language's |
| * plural rules. |
| * @param formatArgs The format arguments that will be used for substitution. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return String The string data associated with the resource, |
| * stripped of styled text information. |
| */ |
| @NonNull |
| public String getQuantityString(@PluralsRes int id, int quantity, Object... formatArgs) |
| throws NotFoundException { |
| String raw = getQuantityText(id, quantity).toString(); |
| return String.format(mResourcesImpl.getConfiguration().getLocales().get(0), raw, |
| formatArgs); |
| } |
| |
| /** |
| * Returns the string necessary for grammatically correct pluralization |
| * of the given resource ID for the given quantity. |
| * Note that the string is selected based solely on grammatical necessity, |
| * and that such rules differ between languages. Do not assume you know which string |
| * will be returned for a given quantity. See |
| * <a href="{@docRoot}guide/topics/resources/string-resource.html#Plurals">String Resources</a> |
| * for more detail. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param quantity The number used to get the correct string for the current language's |
| * plural rules. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return String The string data associated with the resource, |
| * stripped of styled text information. |
| */ |
| @NonNull |
| public String getQuantityString(@PluralsRes int id, int quantity) throws NotFoundException { |
| return getQuantityText(id, quantity).toString(); |
| } |
| |
| /** |
| * Return the string value associated with a particular resource ID. The |
| * returned object will be a String if this is a plain string; it will be |
| * some other type of CharSequence if it is styled. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @param def The default CharSequence to return. |
| * |
| * @return CharSequence The string data associated with the resource, plus |
| * possibly styled text information, or def if id is 0 or not found. |
| */ |
| public CharSequence getText(@StringRes int id, CharSequence def) { |
| CharSequence res = id != 0 ? mResourcesImpl.getAssets().getResourceText(id) : null; |
| return res != null ? res : def; |
| } |
| |
| /** |
| * Return the styled text array associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return The styled text array associated with the resource. |
| */ |
| @NonNull |
| public CharSequence[] getTextArray(@ArrayRes int id) throws NotFoundException { |
| CharSequence[] res = mResourcesImpl.getAssets().getResourceTextArray(id); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("Text array resource ID #0x" + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Return the string array associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return The string array associated with the resource. |
| */ |
| @NonNull |
| public String[] getStringArray(@ArrayRes int id) |
| throws NotFoundException { |
| String[] res = mResourcesImpl.getAssets().getResourceStringArray(id); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("String array resource ID #0x" + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Return the int array associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return The int array associated with the resource. |
| */ |
| @NonNull |
| public int[] getIntArray(@ArrayRes int id) throws NotFoundException { |
| int[] res = mResourcesImpl.getAssets().getArrayIntResource(id); |
| if (res != null) { |
| return res; |
| } |
| throw new NotFoundException("Int array resource ID #0x" + Integer.toHexString(id)); |
| } |
| |
| /** |
| * Return an array of heterogeneous values. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns a TypedArray holding an array of the array values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| */ |
| @NonNull |
| public TypedArray obtainTypedArray(@ArrayRes int id) throws NotFoundException { |
| final ResourcesImpl impl = mResourcesImpl; |
| int len = impl.getAssets().getArraySize(id); |
| if (len < 0) { |
| throw new NotFoundException("Array resource ID #0x" + Integer.toHexString(id)); |
| } |
| |
| TypedArray array = TypedArray.obtain(this, len); |
| array.mLength = impl.getAssets().retrieveArray(id, array.mData); |
| array.mIndices[0] = 0; |
| |
| return array; |
| } |
| |
| /** |
| * Retrieve a dimensional for a particular resource ID. Unit |
| * conversions are based on the current {@link DisplayMetrics} associated |
| * with the resources. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @return Resource dimension value multiplied by the appropriate |
| * metric. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getDimensionPixelOffset |
| * @see #getDimensionPixelSize |
| */ |
| public float getDimension(@DimenRes int id) throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| final ResourcesImpl impl = mResourcesImpl; |
| impl.getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_DIMENSION) { |
| return TypedValue.complexToDimension(value.data, impl.getDisplayMetrics()); |
| } |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Retrieve a dimensional for a particular resource ID for use |
| * as an offset in raw pixels. This is the same as |
| * {@link #getDimension}, except the returned value is converted to |
| * integer pixels for you. An offset conversion involves simply |
| * truncating the base value to an integer. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @return Resource dimension value multiplied by the appropriate |
| * metric and truncated to integer pixels. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getDimension |
| * @see #getDimensionPixelSize |
| */ |
| public int getDimensionPixelOffset(@DimenRes int id) throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| final ResourcesImpl impl = mResourcesImpl; |
| impl.getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_DIMENSION) { |
| return TypedValue.complexToDimensionPixelOffset(value.data, |
| impl.getDisplayMetrics()); |
| } |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Retrieve a dimensional for a particular resource ID for use |
| * as a size in raw pixels. This is the same as |
| * {@link #getDimension}, except the returned value is converted to |
| * integer pixels for use as a size. A size conversion involves |
| * rounding the base value, and ensuring that a non-zero base value |
| * is at least one pixel in size. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @return Resource dimension value multiplied by the appropriate |
| * metric and truncated to integer pixels. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getDimension |
| * @see #getDimensionPixelOffset |
| */ |
| public int getDimensionPixelSize(@DimenRes int id) throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| final ResourcesImpl impl = mResourcesImpl; |
| impl.getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_DIMENSION) { |
| return TypedValue.complexToDimensionPixelSize(value.data, impl.getDisplayMetrics()); |
| } |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Retrieve a fractional unit for a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param base The base value of this fraction. In other words, a |
| * standard fraction is multiplied by this value. |
| * @param pbase The parent base value of this fraction. In other |
| * words, a parent fraction (nn%p) is multiplied by this |
| * value. |
| * |
| * @return Attribute fractional value multiplied by the appropriate |
| * base value. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| */ |
| public float getFraction(@FractionRes int id, int base, int pbase) { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| mResourcesImpl.getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_FRACTION) { |
| return TypedValue.complexToFraction(value.data, base, pbase); |
| } |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Return a drawable object associated with a particular resource ID. |
| * Various types of objects will be returned depending on the underlying |
| * resource -- for example, a solid color, PNG image, scalable image, etc. |
| * The Drawable API hides these implementation details. |
| * |
| * <p class="note"><strong>Note:</strong> Prior to |
| * {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, this function |
| * would not correctly retrieve the final configuration density when |
| * the resource ID passed here is an alias to another Drawable resource. |
| * This means that if the density configuration of the alias resource |
| * is different than the actual resource, the density of the returned |
| * Drawable would be incorrect, resulting in bad scaling. To work |
| * around this, you can instead retrieve the Drawable through |
| * {@link TypedArray#getDrawable TypedArray.getDrawable}. Use |
| * {@link android.content.Context#obtainStyledAttributes(int[]) |
| * Context.obtainStyledAttributes} with |
| * an array containing the resource ID of interest to create the TypedArray.</p> |
| * |
| * <p class="note"><strong>Note:</strong> To obtain a themed drawable, use |
| * {@link android.content.Context#getDrawable(int) Context.getDrawable(int)} |
| * or {@link #getDrawable(int, Theme)} passing the desired theme.</p> |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @return Drawable An object that can be used to draw this resource. |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| * @see #getDrawable(int, Theme) |
| * @deprecated Use {@link #getDrawable(int, Theme)} instead. |
| */ |
| @Deprecated |
| public Drawable getDrawable(@DrawableRes int id) throws NotFoundException { |
| final Drawable d = getDrawable(id, null); |
| if (d != null && d.canApplyTheme()) { |
| Log.w(TAG, "Drawable " + getResourceName(id) + " has unresolved theme " |
| + "attributes! Consider using Resources.getDrawable(int, Theme) or " |
| + "Context.getDrawable(int).", new RuntimeException()); |
| } |
| return d; |
| } |
| |
| /** |
| * Return a drawable object associated with a particular resource ID and |
| * styled for the specified theme. Various types of objects will be |
| * returned depending on the underlying resource -- for example, a solid |
| * color, PNG image, scalable image, etc. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param theme The theme used to style the drawable attributes, may be {@code null}. |
| * @return Drawable An object that can be used to draw this resource. |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| */ |
| public Drawable getDrawable(@DrawableRes int id, @Nullable Theme theme) |
| throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| final ResourcesImpl impl = mResourcesImpl; |
| impl.getValue(id, value, true); |
| return impl.loadDrawable(this, value, id, theme, true); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Return a drawable object associated with a particular resource ID for the |
| * given screen density in DPI. This will set the drawable's density to be |
| * the device's density multiplied by the ratio of actual drawable density |
| * to requested density. This allows the drawable to be scaled up to the |
| * correct size if needed. Various types of objects will be returned |
| * depending on the underlying resource -- for example, a solid color, PNG |
| * image, scalable image, etc. The Drawable API hides these implementation |
| * details. |
| * |
| * <p class="note"><strong>Note:</strong> To obtain a themed drawable, use |
| * {@link android.content.Context#getDrawable(int) Context.getDrawable(int)} |
| * or {@link #getDrawableForDensity(int, int, Theme)} passing the desired |
| * theme.</p> |
| * |
| * @param id The desired resource identifier, as generated by the aapt tool. |
| * This integer encodes the package, type, and resource entry. |
| * The value 0 is an invalid identifier. |
| * @param density the desired screen density indicated by the resource as |
| * found in {@link DisplayMetrics}. |
| * @return Drawable An object that can be used to draw this resource. |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| * @see #getDrawableForDensity(int, int, Theme) |
| * @deprecated Use {@link #getDrawableForDensity(int, int, Theme)} instead. |
| */ |
| @Deprecated |
| public Drawable getDrawableForDensity(@DrawableRes int id, int density) |
| throws NotFoundException { |
| return getDrawableForDensity(id, density, null); |
| } |
| |
| /** |
| * Return a drawable object associated with a particular resource ID for the |
| * given screen density in DPI and styled for the specified theme. |
| * |
| * @param id The desired resource identifier, as generated by the aapt tool. |
| * This integer encodes the package, type, and resource entry. |
| * The value 0 is an invalid identifier. |
| * @param density The desired screen density indicated by the resource as |
| * found in {@link DisplayMetrics}. |
| * @param theme The theme used to style the drawable attributes, may be {@code null}. |
| * @return Drawable An object that can be used to draw this resource. |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| */ |
| public Drawable getDrawableForDensity(@DrawableRes int id, int density, @Nullable Theme theme) { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| final ResourcesImpl impl = mResourcesImpl; |
| impl.getValueForDensity(id, density, value, true); |
| |
| // If the drawable's XML lives in our current density qualifier, |
| // it's okay to use a scaled version from the cache. Otherwise, we |
| // need to actually load the drawable from XML. |
| final DisplayMetrics metrics = impl.getDisplayMetrics(); |
| final boolean useCache = value.density == metrics.densityDpi; |
| |
| /* |
| * Pretend the requested density is actually the display density. If |
| * the drawable returned is not the requested density, then force it |
| * to be scaled later by dividing its density by the ratio of |
| * requested density to actual device density. Drawables that have |
| * undefined density or no density don't need to be handled here. |
| */ |
| if (value.density > 0 && value.density != TypedValue.DENSITY_NONE) { |
| if (value.density == density) { |
| value.density = metrics.densityDpi; |
| } else { |
| value.density = (value.density * metrics.densityDpi) / density; |
| } |
| } |
| return impl.loadDrawable(this, value, id, theme, useCache); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| @NonNull |
| Drawable loadDrawable(@NonNull TypedValue value, int id, @Nullable Theme theme) |
| throws NotFoundException { |
| return mResourcesImpl.loadDrawable(this, value, id, theme, true); |
| } |
| |
| /** |
| * Return a movie object associated with the particular resource ID. |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public Movie getMovie(@RawRes int id) throws NotFoundException { |
| final InputStream is = openRawResource(id); |
| final Movie movie = Movie.decodeStream(is); |
| try { |
| is.close(); |
| } catch (IOException e) { |
| // No one cares. |
| } |
| return movie; |
| } |
| |
| /** |
| * Returns a color integer associated with a particular resource ID. If the |
| * resource holds a complex {@link ColorStateList}, then the default color |
| * from the set is returned. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| * |
| * @return A single color value in the form 0xAARRGGBB. |
| * @deprecated Use {@link #getColor(int, Theme)} instead. |
| */ |
| @ColorInt |
| @Deprecated |
| public int getColor(@ColorRes int id) throws NotFoundException { |
| return getColor(id, null); |
| } |
| |
| /** |
| * Returns a themed color integer associated with a particular resource ID. |
| * If the resource holds a complex {@link ColorStateList}, then the default |
| * color from the set is returned. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param theme The theme used to style the color attributes, may be |
| * {@code null}. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| * |
| * @return A single color value in the form 0xAARRGGBB. |
| */ |
| @ColorInt |
| public int getColor(@ColorRes int id, @Nullable Theme theme) throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| final ResourcesImpl impl = mResourcesImpl; |
| impl.getValue(id, value, true); |
| if (value.type >= TypedValue.TYPE_FIRST_INT |
| && value.type <= TypedValue.TYPE_LAST_INT) { |
| return value.data; |
| } else if (value.type != TypedValue.TYPE_STRING) { |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } |
| |
| final ColorStateList csl = impl.loadColorStateList(this, value, id, theme); |
| return csl.getDefaultColor(); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Returns a color state list associated with a particular resource ID. The |
| * resource may contain either a single raw color value or a complex |
| * {@link ColorStateList} holding multiple possible colors. |
| * |
| * @param id The desired resource identifier of a {@link ColorStateList}, |
| * as generated by the aapt tool. This integer encodes the |
| * package, type, and resource entry. The value 0 is an invalid |
| * identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| * |
| * @return A ColorStateList object containing either a single solid color |
| * or multiple colors that can be selected based on a state. |
| * @deprecated Use {@link #getColorStateList(int, Theme)} instead. |
| */ |
| @Nullable |
| @Deprecated |
| public ColorStateList getColorStateList(@ColorRes int id) throws NotFoundException { |
| final ColorStateList csl = getColorStateList(id, null); |
| if (csl != null && csl.canApplyTheme()) { |
| Log.w(TAG, "ColorStateList " + getResourceName(id) + " has " |
| + "unresolved theme attributes! Consider using " |
| + "Resources.getColorStateList(int, Theme) or " |
| + "Context.getColorStateList(int).", new RuntimeException()); |
| } |
| return csl; |
| } |
| |
| /** |
| * Returns a themed color state list associated with a particular resource |
| * ID. The resource may contain either a single raw color value or a |
| * complex {@link ColorStateList} holding multiple possible colors. |
| * |
| * @param id The desired resource identifier of a {@link ColorStateList}, |
| * as generated by the aapt tool. This integer encodes the |
| * package, type, and resource entry. The value 0 is an invalid |
| * identifier. |
| * @param theme The theme used to style the color attributes, may be |
| * {@code null}. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| * |
| * @return A themed ColorStateList object containing either a single solid |
| * color or multiple colors that can be selected based on a state. |
| */ |
| @Nullable |
| public ColorStateList getColorStateList(@ColorRes int id, @Nullable Theme theme) |
| throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| final ResourcesImpl impl = mResourcesImpl; |
| impl.getValue(id, value, true); |
| return impl.loadColorStateList(this, value, id, theme); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| @Nullable |
| ColorStateList loadColorStateList(@NonNull TypedValue value, int id, @Nullable Theme theme) |
| throws NotFoundException { |
| return mResourcesImpl.loadColorStateList(this, value, id, theme); |
| } |
| |
| @Nullable |
| public ComplexColor loadComplexColor(@NonNull TypedValue value, int id, @Nullable Theme theme) { |
| return mResourcesImpl.loadComplexColor(this, value, id, theme); |
| } |
| |
| /** |
| * Return a boolean associated with a particular resource ID. This can be |
| * used with any integral resource value, and will return true if it is |
| * non-zero. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns the boolean value contained in the resource. |
| */ |
| public boolean getBoolean(@BoolRes int id) throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| mResourcesImpl.getValue(id, value, true); |
| if (value.type >= TypedValue.TYPE_FIRST_INT |
| && value.type <= TypedValue.TYPE_LAST_INT) { |
| return value.data != 0; |
| } |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Return an integer associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns the integer value contained in the resource. |
| */ |
| public int getInteger(@IntegerRes int id) throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| mResourcesImpl.getValue(id, value, true); |
| if (value.type >= TypedValue.TYPE_FIRST_INT |
| && value.type <= TypedValue.TYPE_LAST_INT) { |
| return value.data; |
| } |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Retrieve a floating-point value for a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @return Returns the floating-point value contained in the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist or is not a floating-point value. |
| * @hide Pending API council approval. |
| */ |
| public float getFloat(int id) { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| mResourcesImpl.getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_FLOAT) { |
| return value.getFloat(); |
| } |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Return an XmlResourceParser through which you can read a view layout |
| * description for the given resource ID. This parser has limited |
| * functionality -- in particular, you can't change its input, and only |
| * the high-level events are available. |
| * |
| * <p>This function is really a simple wrapper for calling |
| * {@link #getXml} with a layout resource. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return A new parser object through which you can read |
| * the XML data. |
| * |
| * @see #getXml |
| */ |
| public XmlResourceParser getLayout(@LayoutRes int id) throws NotFoundException { |
| return loadXmlResourceParser(id, "layout"); |
| } |
| |
| /** |
| * Return an XmlResourceParser through which you can read an animation |
| * description for the given resource ID. This parser has limited |
| * functionality -- in particular, you can't change its input, and only |
| * the high-level events are available. |
| * |
| * <p>This function is really a simple wrapper for calling |
| * {@link #getXml} with an animation resource. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return A new parser object through which you can read |
| * the XML data. |
| * |
| * @see #getXml |
| */ |
| public XmlResourceParser getAnimation(@AnimRes int id) throws NotFoundException { |
| return loadXmlResourceParser(id, "anim"); |
| } |
| |
| /** |
| * Return an XmlResourceParser through which you can read a generic XML |
| * resource for the given resource ID. |
| * |
| * <p>The XmlPullParser implementation returned here has some limited |
| * functionality. In particular, you can't change its input, and only |
| * high-level parsing events are available (since the document was |
| * pre-parsed for you at build time, which involved merging text and |
| * stripping comments). |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return A new parser object through which you can read |
| * the XML data. |
| * |
| * @see android.util.AttributeSet |
| */ |
| public XmlResourceParser getXml(@XmlRes int id) throws NotFoundException { |
| return loadXmlResourceParser(id, "xml"); |
| } |
| |
| /** |
| * Open a data stream for reading a raw resource. This can only be used |
| * with resources whose value is the name of an asset files -- that is, it can be |
| * used to open drawable, sound, and raw resources; it will fail on string |
| * and color resources. |
| * |
| * @param id The resource identifier to open, as generated by the appt |
| * tool. |
| * |
| * @return InputStream Access to the resource data. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public InputStream openRawResource(@RawRes int id) throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| return openRawResource(id, value); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Returns a TypedValue suitable for temporary use. The obtained TypedValue |
| * should be released using {@link #releaseTempTypedValue(TypedValue)}. |
| * |
| * @return a typed value suitable for temporary use |
| */ |
| private TypedValue obtainTempTypedValue() { |
| TypedValue tmpValue = null; |
| synchronized (mTmpValueLock) { |
| if (mTmpValue != null) { |
| tmpValue = mTmpValue; |
| mTmpValue = null; |
| } |
| } |
| if (tmpValue == null) { |
| return new TypedValue(); |
| } |
| return tmpValue; |
| } |
| |
| /** |
| * Returns a TypedValue to the pool. After calling this method, the |
| * specified TypedValue should no longer be accessed. |
| * |
| * @param value the typed value to return to the pool |
| */ |
| private void releaseTempTypedValue(TypedValue value) { |
| synchronized (mTmpValueLock) { |
| if (mTmpValue == null) { |
| mTmpValue = value; |
| } |
| } |
| } |
| |
| /** |
| * Open a data stream for reading a raw resource. This can only be used |
| * with resources whose value is the name of an asset file -- that is, it can be |
| * used to open drawable, sound, and raw resources; it will fail on string |
| * and color resources. |
| * |
| * @param id The resource identifier to open, as generated by the appt tool. |
| * @param value The TypedValue object to hold the resource information. |
| * |
| * @return InputStream Access to the resource data. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| */ |
| public InputStream openRawResource(@RawRes int id, TypedValue value) |
| throws NotFoundException { |
| return mResourcesImpl.openRawResource(id, value); |
| } |
| |
| /** |
| * Open a file descriptor for reading a raw resource. This can only be used |
| * with resources whose value is the name of an asset files -- that is, it can be |
| * used to open drawable, sound, and raw resources; it will fail on string |
| * and color resources. |
| * |
| * <p>This function only works for resources that are stored in the package |
| * as uncompressed data, which typically includes things like mp3 files |
| * and png images. |
| * |
| * @param id The resource identifier to open, as generated by the appt |
| * tool. |
| * |
| * @return AssetFileDescriptor A new file descriptor you can use to read |
| * the resource. This includes the file descriptor itself, as well as the |
| * offset and length of data where the resource appears in the file. A |
| * null is returned if the file exists but is compressed. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public AssetFileDescriptor openRawResourceFd(@RawRes int id) |
| throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| return mResourcesImpl.openRawResourceFd(id, value); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Return the raw data associated with a particular resource ID. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @param outValue Object in which to place the resource data. |
| * @param resolveRefs If true, a resource that is a reference to another |
| * resource will be followed so that you receive the |
| * actual final resource data. If false, the TypedValue |
| * will be filled in with the reference itself. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public void getValue(@AnyRes int id, TypedValue outValue, boolean resolveRefs) |
| throws NotFoundException { |
| mResourcesImpl.getValue(id, outValue, resolveRefs); |
| } |
| |
| /** |
| * Get the raw value associated with a resource with associated density. |
| * |
| * @param id resource identifier |
| * @param density density in DPI |
| * @param resolveRefs If true, a resource that is a reference to another |
| * resource will be followed so that you receive the actual final |
| * resource data. If false, the TypedValue will be filled in with |
| * the reference itself. |
| * @throws NotFoundException Throws NotFoundException if the given ID does |
| * not exist. |
| * @see #getValue(String, TypedValue, boolean) |
| */ |
| public void getValueForDensity(@AnyRes int id, int density, TypedValue outValue, |
| boolean resolveRefs) throws NotFoundException { |
| mResourcesImpl.getValueForDensity(id, density, outValue, resolveRefs); |
| } |
| |
| /** |
| * Return the raw data associated with a particular resource ID. |
| * See getIdentifier() for information on how names are mapped to resource |
| * IDs, and getString(int) for information on how string resources are |
| * retrieved. |
| * |
| * <p>Note: use of this function is discouraged. It is much more |
| * efficient to retrieve resources by identifier than by name. |
| * |
| * @param name The name of the desired resource. This is passed to |
| * getIdentifier() with a default type of "string". |
| * @param outValue Object in which to place the resource data. |
| * @param resolveRefs If true, a resource that is a reference to another |
| * resource will be followed so that you receive the |
| * actual final resource data. If false, the TypedValue |
| * will be filled in with the reference itself. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| */ |
| public void getValue(String name, TypedValue outValue, boolean resolveRefs) |
| throws NotFoundException { |
| mResourcesImpl.getValue(name, outValue, resolveRefs); |
| } |
| |
| /** |
| * This class holds the current attribute values for a particular theme. |
| * In other words, a Theme is a set of values for resource attributes; |
| * these are used in conjunction with {@link TypedArray} |
| * to resolve the final value for an attribute. |
| * |
| * <p>The Theme's attributes come into play in two ways: (1) a styled |
| * attribute can explicit reference a value in the theme through the |
| * "?themeAttribute" syntax; (2) if no value has been defined for a |
| * particular styled attribute, as a last resort we will try to find that |
| * attribute's value in the Theme. |
| * |
| * <p>You will normally use the {@link #obtainStyledAttributes} APIs to |
| * retrieve XML attributes with style and theme information applied. |
| */ |
| public final class Theme { |
| private ResourcesImpl.ThemeImpl mThemeImpl; |
| |
| private Theme() { |
| } |
| |
| void setImpl(ResourcesImpl.ThemeImpl impl) { |
| mThemeImpl = impl; |
| } |
| |
| /** |
| * Place new attribute values into the theme. The style resource |
| * specified by <var>resid</var> will be retrieved from this Theme's |
| * resources, its values placed into the Theme object. |
| * |
| * <p>The semantics of this function depends on the <var>force</var> |
| * argument: If false, only values that are not already defined in |
| * the theme will be copied from the system resource; otherwise, if |
| * any of the style's attributes are already defined in the theme, the |
| * current values in the theme will be overwritten. |
| * |
| * @param resId The resource ID of a style resource from which to |
| * obtain attribute values. |
| * @param force If true, values in the style resource will always be |
| * used in the theme; otherwise, they will only be used |
| * if not already defined in the theme. |
| */ |
| public void applyStyle(int resId, boolean force) { |
| mThemeImpl.applyStyle(resId, force); |
| } |
| |
| /** |
| * Set this theme to hold the same contents as the theme |
| * <var>other</var>. If both of these themes are from the same |
| * Resources object, they will be identical after this function |
| * returns. If they are from different Resources, only the resources |
| * they have in common will be set in this theme. |
| * |
| * @param other The existing Theme to copy from. |
| */ |
| public void setTo(Theme other) { |
| mThemeImpl.setTo(other.mThemeImpl); |
| } |
| |
| /** |
| * Return a TypedArray holding the values defined by |
| * <var>Theme</var> which are listed in <var>attrs</var>. |
| * |
| * <p>Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} when you are done |
| * with the array. |
| * |
| * @param attrs The desired attributes. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns a TypedArray holding an array of the attribute values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| * |
| * @see Resources#obtainAttributes |
| * @see #obtainStyledAttributes(int, int[]) |
| * @see #obtainStyledAttributes(AttributeSet, int[], int, int) |
| */ |
| public TypedArray obtainStyledAttributes(@StyleableRes int[] attrs) { |
| return mThemeImpl.obtainStyledAttributes(this, null, attrs, 0, 0); |
| } |
| |
| /** |
| * Return a TypedArray holding the values defined by the style |
| * resource <var>resid</var> which are listed in <var>attrs</var>. |
| * |
| * <p>Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} when you are done |
| * with the array. |
| * |
| * @param resId The desired style resource. |
| * @param attrs The desired attributes in the style. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @return Returns a TypedArray holding an array of the attribute values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| * |
| * @see Resources#obtainAttributes |
| * @see #obtainStyledAttributes(int[]) |
| * @see #obtainStyledAttributes(AttributeSet, int[], int, int) |
| */ |
| public TypedArray obtainStyledAttributes(@StyleRes int resId, @StyleableRes int[] attrs) |
| throws NotFoundException { |
| return mThemeImpl.obtainStyledAttributes(this, null, attrs, 0, resId); |
| } |
| |
| /** |
| * Return a TypedArray holding the attribute values in |
| * <var>set</var> |
| * that are listed in <var>attrs</var>. In addition, if the given |
| * AttributeSet specifies a style class (through the "style" attribute), |
| * that style will be applied on top of the base attributes it defines. |
| * |
| * <p>Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} when you are done |
| * with the array. |
| * |
| * <p>When determining the final value of a particular attribute, there |
| * are four inputs that come into play:</p> |
| * |
| * <ol> |
| * <li> Any attribute values in the given AttributeSet. |
| * <li> The style resource specified in the AttributeSet (named |
| * "style"). |
| * <li> The default style specified by <var>defStyleAttr</var> and |
| * <var>defStyleRes</var> |
| * <li> The base values in this theme. |
| * </ol> |
| * |
| * <p>Each of these inputs is considered in-order, with the first listed |
| * taking precedence over the following ones. In other words, if in the |
| * AttributeSet you have supplied <code><Button |
| * textColor="#ff000000"></code>, then the button's text will |
| * <em>always</em> be black, regardless of what is specified in any of |
| * the styles. |
| * |
| * @param set The base set of attribute values. May be null. |
| * @param attrs The desired attributes to be retrieved. |
| * @param defStyleAttr An attribute in the current theme that contains a |
| * reference to a style resource that supplies |
| * defaults values for the TypedArray. Can be |
| * 0 to not look for defaults. |
| * @param defStyleRes A resource identifier of a style resource that |
| * supplies default values for the TypedArray, |
| * used only if defStyleAttr is 0 or can not be found |
| * in the theme. Can be 0 to not look for defaults. |
| * |
| * @return Returns a TypedArray holding an array of the attribute values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| * |
| * @see Resources#obtainAttributes |
| * @see #obtainStyledAttributes(int[]) |
| * @see #obtainStyledAttributes(int, int[]) |
| */ |
| public TypedArray obtainStyledAttributes(AttributeSet set, |
| @StyleableRes int[] attrs, @AttrRes int defStyleAttr, @StyleRes int defStyleRes) { |
| return mThemeImpl.obtainStyledAttributes(this, set, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| /** |
| * Retrieve the values for a set of attributes in the Theme. The |
| * contents of the typed array are ultimately filled in by |
| * {@link Resources#getValue}. |
| * |
| * @param values The base set of attribute values, must be equal in |
| * length to {@code attrs}. All values must be of type |
| * {@link TypedValue#TYPE_ATTRIBUTE}. |
| * @param attrs The desired attributes to be retrieved. |
| * @return Returns a TypedArray holding an array of the attribute |
| * values. Be sure to call {@link TypedArray#recycle()} |
| * when done with it. |
| * @hide |
| */ |
| @NonNull |
| public TypedArray resolveAttributes(@NonNull int[] values, @NonNull int[] attrs) { |
| return mThemeImpl.resolveAttributes(this, values, attrs); |
| } |
| |
| /** |
| * Retrieve the value of an attribute in the Theme. The contents of |
| * <var>outValue</var> are ultimately filled in by |
| * {@link Resources#getValue}. |
| * |
| * @param resid The resource identifier of the desired theme |
| * attribute. |
| * @param outValue Filled in with the ultimate resource value supplied |
| * by the attribute. |
| * @param resolveRefs If true, resource references will be walked; if |
| * false, <var>outValue</var> may be a |
| * TYPE_REFERENCE. In either case, it will never |
| * be a TYPE_ATTRIBUTE. |
| * |
| * @return boolean Returns true if the attribute was found and |
| * <var>outValue</var> is valid, else false. |
| */ |
| public boolean resolveAttribute(int resid, TypedValue outValue, boolean resolveRefs) { |
| return mThemeImpl.resolveAttribute(resid, outValue, resolveRefs); |
| } |
| |
| /** |
| * Gets all of the attribute ids associated with this {@link Theme}. For debugging only. |
| * |
| * @return The int array containing attribute ids associated with this {@link Theme}. |
| * @hide |
| */ |
| public int[] getAllAttributes() { |
| return mThemeImpl.getAllAttributes(); |
| } |
| |
| /** |
| * Returns the resources to which this theme belongs. |
| * |
| * @return Resources to which this theme belongs. |
| */ |
| public Resources getResources() { |
| return Resources.this; |
| } |
| |
| /** |
| * Return a drawable object associated with a particular resource ID |
| * and styled for the Theme. |
| * |
| * @param id The desired resource identifier, as generated by the aapt |
| * tool. This integer encodes the package, type, and resource |
| * entry. The value 0 is an invalid identifier. |
| * @return Drawable An object that can be used to draw this resource. |
| * @throws NotFoundException Throws NotFoundException if the given ID |
| * does not exist. |
| */ |
| public Drawable getDrawable(@DrawableRes int id) throws NotFoundException { |
| return Resources.this.getDrawable(id, this); |
| } |
| |
| /** |
| * Returns a bit mask of configuration changes that will impact this |
| * theme (and thus require completely reloading it). |
| * |
| * @return a bit mask of configuration changes, as defined by |
| * {@link ActivityInfo} |
| * @see ActivityInfo |
| */ |
| public int getChangingConfigurations() { |
| return mThemeImpl.getChangingConfigurations(); |
| } |
| |
| /** |
| * Print contents of this theme out to the log. For debugging only. |
| * |
| * @param priority The log priority to use. |
| * @param tag The log tag to use. |
| * @param prefix Text to prefix each line printed. |
| */ |
| public void dump(int priority, String tag, String prefix) { |
| mThemeImpl.dump(priority, tag, prefix); |
| } |
| |
| // Needed by layoutlib. |
| /*package*/ long getNativeTheme() { |
| return mThemeImpl.getNativeTheme(); |
| } |
| |
| /*package*/ int getAppliedStyleResId() { |
| return mThemeImpl.getAppliedStyleResId(); |
| } |
| |
| /** |
| * @hide |
| */ |
| public ThemeKey getKey() { |
| return mThemeImpl.getKey(); |
| } |
| |
| private String getResourceNameFromHexString(String hexString) { |
| return getResourceName(Integer.parseInt(hexString, 16)); |
| } |
| |
| /** |
| * Parses {@link #getKey()} and returns a String array that holds pairs of |
| * adjacent Theme data: resource name followed by whether or not it was |
| * forced, as specified by {@link #applyStyle(int, boolean)}. |
| * |
| * @hide |
| */ |
| @ViewDebug.ExportedProperty(category = "theme", hasAdjacentMapping = true) |
| public String[] getTheme() { |
| return mThemeImpl.getTheme(); |
| } |
| |
| /** @hide */ |
| public void encode(@NonNull ViewHierarchyEncoder encoder) { |
| encoder.beginObject(this); |
| final String[] properties = getTheme(); |
| for (int i = 0; i < properties.length; i += 2) { |
| encoder.addProperty(properties[i], properties[i+1]); |
| } |
| encoder.endObject(); |
| } |
| |
| /** |
| * Rebases the theme against the parent Resource object's current |
| * configuration by re-applying the styles passed to |
| * {@link #applyStyle(int, boolean)}. |
| * |
| * @hide |
| */ |
| public void rebase() { |
| mThemeImpl.rebase(); |
| } |
| } |
| |
| static class ThemeKey implements Cloneable { |
| int[] mResId; |
| boolean[] mForce; |
| int mCount; |
| |
| private int mHashCode = 0; |
| |
| public void append(int resId, boolean force) { |
| if (mResId == null) { |
| mResId = new int[4]; |
| } |
| |
| if (mForce == null) { |
| mForce = new boolean[4]; |
| } |
| |
| mResId = GrowingArrayUtils.append(mResId, mCount, resId); |
| mForce = GrowingArrayUtils.append(mForce, mCount, force); |
| mCount++; |
| |
| mHashCode = 31 * (31 * mHashCode + resId) + (force ? 1 : 0); |
| } |
| |
| /** |
| * Sets up this key as a deep copy of another key. |
| * |
| * @param other the key to deep copy into this key |
| */ |
| public void setTo(ThemeKey other) { |
| mResId = other.mResId == null ? null : other.mResId.clone(); |
| mForce = other.mForce == null ? null : other.mForce.clone(); |
| mCount = other.mCount; |
| } |
| |
| @Override |
| public int hashCode() { |
| return mHashCode; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| |
| if (o == null || getClass() != o.getClass() || hashCode() != o.hashCode()) { |
| return false; |
| } |
| |
| final ThemeKey t = (ThemeKey) o; |
| if (mCount != t.mCount) { |
| return false; |
| } |
| |
| final int N = mCount; |
| for (int i = 0; i < N; i++) { |
| if (mResId[i] != t.mResId[i] || mForce[i] != t.mForce[i]) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| /** |
| * @return a shallow copy of this key |
| */ |
| @Override |
| public ThemeKey clone() { |
| final ThemeKey other = new ThemeKey(); |
| other.mResId = mResId; |
| other.mForce = mForce; |
| other.mCount = mCount; |
| other.mHashCode = mHashCode; |
| return other; |
| } |
| } |
| |
| /** |
| * Generate a new Theme object for this set of Resources. It initially |
| * starts out empty. |
| * |
| * @return Theme The newly created Theme container. |
| */ |
| public final Theme newTheme() { |
| Theme theme = new Theme(); |
| theme.setImpl(mResourcesImpl.newThemeImpl()); |
| mThemeRefs.add(new WeakReference<>(theme)); |
| return theme; |
| } |
| |
| /** |
| * Retrieve a set of basic attribute values from an AttributeSet, not |
| * performing styling of them using a theme and/or style resources. |
| * |
| * @param set The current attribute values to retrieve. |
| * @param attrs The specific attributes to be retrieved. |
| * @return Returns a TypedArray holding an array of the attribute values. |
| * Be sure to call {@link TypedArray#recycle() TypedArray.recycle()} |
| * when done with it. |
| * |
| * @see Theme#obtainStyledAttributes(AttributeSet, int[], int, int) |
| */ |
| public TypedArray obtainAttributes(AttributeSet set, int[] attrs) { |
| int len = attrs.length; |
| TypedArray array = TypedArray.obtain(this, len); |
| |
| // XXX note that for now we only work with compiled XML files. |
| // To support generic XML files we will need to manually parse |
| // out the attributes from the XML file (applying type information |
| // contained in the resources and such). |
| XmlBlock.Parser parser = (XmlBlock.Parser)set; |
| mResourcesImpl.getAssets().retrieveAttributes(parser.mParseState, attrs, |
| array.mData, array.mIndices); |
| |
| array.mXml = parser; |
| |
| return array; |
| } |
| |
| /** |
| * Store the newly updated configuration. |
| */ |
| public void updateConfiguration(Configuration config, DisplayMetrics metrics) { |
| updateConfiguration(config, metrics, null); |
| } |
| |
| /** |
| * @hide |
| */ |
| public void updateConfiguration(Configuration config, DisplayMetrics metrics, |
| CompatibilityInfo compat) { |
| mResourcesImpl.updateConfiguration(config, metrics, compat); |
| } |
| |
| /** |
| * Update the system resources configuration if they have previously |
| * been initialized. |
| * |
| * @hide |
| */ |
| public static void updateSystemConfiguration(Configuration config, DisplayMetrics metrics, |
| CompatibilityInfo compat) { |
| if (mSystem != null) { |
| mSystem.updateConfiguration(config, metrics, compat); |
| //Log.i(TAG, "Updated system resources " + mSystem |
| // + ": " + mSystem.getConfiguration()); |
| } |
| } |
| |
| /** |
| * Return the current display metrics that are in effect for this resource |
| * object. The returned object should be treated as read-only. |
| * |
| * @return The resource's current display metrics. |
| */ |
| public DisplayMetrics getDisplayMetrics() { |
| return mResourcesImpl.getDisplayMetrics(); |
| } |
| |
| /** |
| * Return the current configuration that is in effect for this resource |
| * object. The returned object should be treated as read-only. |
| * |
| * @return The resource's current configuration. |
| */ |
| public Configuration getConfiguration() { |
| return mResourcesImpl.getConfiguration(); |
| } |
| |
| /** @hide */ |
| public Configuration[] getSizeConfigurations() { |
| return mResourcesImpl.getSizeConfigurations(); |
| } |
| |
| /** |
| * Return the compatibility mode information for the application. |
| * The returned object should be treated as read-only. |
| * |
| * @return compatibility info. |
| * @hide |
| */ |
| public CompatibilityInfo getCompatibilityInfo() { |
| return mResourcesImpl.getCompatibilityInfo(); |
| } |
| |
| /** |
| * This is just for testing. |
| * @hide |
| */ |
| @VisibleForTesting |
| public void setCompatibilityInfo(CompatibilityInfo ci) { |
| if (ci != null) { |
| mResourcesImpl.updateConfiguration(null, null, ci); |
| } |
| } |
| |
| /** |
| * Return a resource identifier for the given resource name. A fully |
| * qualified resource name is of the form "package:type/entry". The first |
| * two components (package and type) are optional if defType and |
| * defPackage, respectively, are specified here. |
| * |
| * <p>Note: use of this function is discouraged. It is much more |
| * efficient to retrieve resources by identifier than by name. |
| * |
| * @param name The name of the desired resource. |
| * @param defType Optional default resource type to find, if "type/" is |
| * not included in the name. Can be null to require an |
| * explicit type. |
| * @param defPackage Optional default package to find, if "package:" is |
| * not included in the name. Can be null to require an |
| * explicit package. |
| * |
| * @return int The associated resource identifier. Returns 0 if no such |
| * resource was found. (0 is not a valid resource ID.) |
| */ |
| public int getIdentifier(String name, String defType, String defPackage) { |
| return mResourcesImpl.getIdentifier(name, defType, defPackage); |
| } |
| |
| /** |
| * Return true if given resource identifier includes a package. |
| * |
| * @hide |
| */ |
| public static boolean resourceHasPackage(@AnyRes int resid) { |
| return (resid >>> 24) != 0; |
| } |
| |
| /** |
| * Return the full name for a given resource identifier. This name is |
| * a single string of the form "package:type/entry". |
| * |
| * @param resid The resource identifier whose name is to be retrieved. |
| * |
| * @return A string holding the name of the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getResourcePackageName |
| * @see #getResourceTypeName |
| * @see #getResourceEntryName |
| */ |
| public String getResourceName(@AnyRes int resid) throws NotFoundException { |
| return mResourcesImpl.getResourceName(resid); |
| } |
| |
| /** |
| * Return the package name for a given resource identifier. |
| * |
| * @param resid The resource identifier whose package name is to be |
| * retrieved. |
| * |
| * @return A string holding the package name of the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getResourceName |
| */ |
| public String getResourcePackageName(@AnyRes int resid) throws NotFoundException { |
| return mResourcesImpl.getResourcePackageName(resid); |
| } |
| |
| /** |
| * Return the type name for a given resource identifier. |
| * |
| * @param resid The resource identifier whose type name is to be |
| * retrieved. |
| * |
| * @return A string holding the type name of the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getResourceName |
| */ |
| public String getResourceTypeName(@AnyRes int resid) throws NotFoundException { |
| return mResourcesImpl.getResourceTypeName(resid); |
| } |
| |
| /** |
| * Return the entry name for a given resource identifier. |
| * |
| * @param resid The resource identifier whose entry name is to be |
| * retrieved. |
| * |
| * @return A string holding the entry name of the resource. |
| * |
| * @throws NotFoundException Throws NotFoundException if the given ID does not exist. |
| * |
| * @see #getResourceName |
| */ |
| public String getResourceEntryName(@AnyRes int resid) throws NotFoundException { |
| return mResourcesImpl.getResourceEntryName(resid); |
| } |
| |
| /** |
| * Parse a series of {@link android.R.styleable#Extra <extra>} tags from |
| * an XML file. You call this when you are at the parent tag of the |
| * extra tags, and it will return once all of the child tags have been parsed. |
| * This will call {@link #parseBundleExtra} for each extra tag encountered. |
| * |
| * @param parser The parser from which to retrieve the extras. |
| * @param outBundle A Bundle in which to place all parsed extras. |
| * @throws XmlPullParserException |
| * @throws IOException |
| */ |
| public void parseBundleExtras(XmlResourceParser parser, Bundle outBundle) |
| throws XmlPullParserException, IOException { |
| int outerDepth = parser.getDepth(); |
| int type; |
| while ((type=parser.next()) != XmlPullParser.END_DOCUMENT |
| && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { |
| if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { |
| continue; |
| } |
| |
| String nodeName = parser.getName(); |
| if (nodeName.equals("extra")) { |
| parseBundleExtra("extra", parser, outBundle); |
| XmlUtils.skipCurrentTag(parser); |
| |
| } else { |
| XmlUtils.skipCurrentTag(parser); |
| } |
| } |
| } |
| |
| /** |
| * Parse a name/value pair out of an XML tag holding that data. The |
| * AttributeSet must be holding the data defined by |
| * {@link android.R.styleable#Extra}. The following value types are supported: |
| * <ul> |
| * <li> {@link TypedValue#TYPE_STRING}: |
| * {@link Bundle#putCharSequence Bundle.putCharSequence()} |
| * <li> {@link TypedValue#TYPE_INT_BOOLEAN}: |
| * {@link Bundle#putCharSequence Bundle.putBoolean()} |
| * <li> {@link TypedValue#TYPE_FIRST_INT}-{@link TypedValue#TYPE_LAST_INT}: |
| * {@link Bundle#putCharSequence Bundle.putBoolean()} |
| * <li> {@link TypedValue#TYPE_FLOAT}: |
| * {@link Bundle#putCharSequence Bundle.putFloat()} |
| * </ul> |
| * |
| * @param tagName The name of the tag these attributes come from; this is |
| * only used for reporting error messages. |
| * @param attrs The attributes from which to retrieve the name/value pair. |
| * @param outBundle The Bundle in which to place the parsed value. |
| * @throws XmlPullParserException If the attributes are not valid. |
| */ |
| public void parseBundleExtra(String tagName, AttributeSet attrs, |
| Bundle outBundle) throws XmlPullParserException { |
| TypedArray sa = obtainAttributes(attrs, |
| com.android.internal.R.styleable.Extra); |
| |
| String name = sa.getString( |
| com.android.internal.R.styleable.Extra_name); |
| if (name == null) { |
| sa.recycle(); |
| throw new XmlPullParserException("<" + tagName |
| + "> requires an android:name attribute at " |
| + attrs.getPositionDescription()); |
| } |
| |
| TypedValue v = sa.peekValue( |
| com.android.internal.R.styleable.Extra_value); |
| if (v != null) { |
| if (v.type == TypedValue.TYPE_STRING) { |
| CharSequence cs = v.coerceToString(); |
| outBundle.putCharSequence(name, cs); |
| } else if (v.type == TypedValue.TYPE_INT_BOOLEAN) { |
| outBundle.putBoolean(name, v.data != 0); |
| } else if (v.type >= TypedValue.TYPE_FIRST_INT |
| && v.type <= TypedValue.TYPE_LAST_INT) { |
| outBundle.putInt(name, v.data); |
| } else if (v.type == TypedValue.TYPE_FLOAT) { |
| outBundle.putFloat(name, v.getFloat()); |
| } else { |
| sa.recycle(); |
| throw new XmlPullParserException("<" + tagName |
| + "> only supports string, integer, float, color, and boolean at " |
| + attrs.getPositionDescription()); |
| } |
| } else { |
| sa.recycle(); |
| throw new XmlPullParserException("<" + tagName |
| + "> requires an android:value or android:resource attribute at " |
| + attrs.getPositionDescription()); |
| } |
| |
| sa.recycle(); |
| } |
| |
| /** |
| * Retrieve underlying AssetManager storage for these resources. |
| */ |
| public final AssetManager getAssets() { |
| return mResourcesImpl.getAssets(); |
| } |
| |
| /** |
| * Call this to remove all cached loaded layout resources from the |
| * Resources object. Only intended for use with performance testing |
| * tools. |
| */ |
| public final void flushLayoutCache() { |
| mResourcesImpl.flushLayoutCache(); |
| } |
| |
| /** |
| * Start preloading of resource data using this Resources object. Only |
| * for use by the zygote process for loading common system resources. |
| * {@hide} |
| */ |
| public final void startPreloading() { |
| mResourcesImpl.startPreloading(); |
| } |
| |
| /** |
| * Called by zygote when it is done preloading resources, to change back |
| * to normal Resources operation. |
| */ |
| public final void finishPreloading() { |
| mResourcesImpl.finishPreloading(); |
| } |
| |
| /** |
| * @hide |
| */ |
| public LongSparseArray<ConstantState> getPreloadedDrawables() { |
| return mResourcesImpl.getPreloadedDrawables(); |
| } |
| |
| /** |
| * Loads an XML parser for the specified file. |
| * |
| * @param id the resource identifier for the file |
| * @param type the type of resource (used for logging) |
| * @return a parser for the specified XML file |
| * @throws NotFoundException if the file could not be loaded |
| */ |
| @NonNull |
| XmlResourceParser loadXmlResourceParser(@AnyRes int id, @NonNull String type) |
| throws NotFoundException { |
| final TypedValue value = obtainTempTypedValue(); |
| try { |
| final ResourcesImpl impl = mResourcesImpl; |
| impl.getValue(id, value, true); |
| if (value.type == TypedValue.TYPE_STRING) { |
| return impl.loadXmlResourceParser(value.string.toString(), id, |
| value.assetCookie, type); |
| } |
| throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) |
| + " type #0x" + Integer.toHexString(value.type) + " is not valid"); |
| } finally { |
| releaseTempTypedValue(value); |
| } |
| } |
| |
| /** |
| * Loads an XML parser for the specified file. |
| * |
| * @param file the path for the XML file to parse |
| * @param id the resource identifier for the file |
| * @param assetCookie the asset cookie for the file |
| * @param type the type of resource (used for logging) |
| * @return a parser for the specified XML file |
| * @throws NotFoundException if the file could not be loaded |
| */ |
| @NonNull |
| XmlResourceParser loadXmlResourceParser(String file, int id, int assetCookie, |
| String type) throws NotFoundException { |
| return mResourcesImpl.loadXmlResourceParser(file, id, assetCookie, type); |
| } |
| |
| /** |
| * Called by ConfigurationBoundResourceCacheTest. |
| * @hide |
| */ |
| @VisibleForTesting |
| public int calcConfigChanges(Configuration config) { |
| return mResourcesImpl.calcConfigChanges(config); |
| } |
| |
| /** |
| * Obtains styled attributes from the theme, if available, or unstyled |
| * resources if the theme is null. |
| * |
| * @hide |
| */ |
| public static TypedArray obtainAttributes( |
| Resources res, Theme theme, AttributeSet set, int[] attrs) { |
| if (theme == null) { |
| return res.obtainAttributes(set, attrs); |
| } |
| return theme.obtainStyledAttributes(set, attrs, 0, 0); |
| } |
| } |