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.view.animation; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.TypedArray; |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 21 | import android.graphics.RectF; |
| 22 | import android.os.SystemProperties; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 23 | import android.util.AttributeSet; |
| 24 | import android.util.TypedValue; |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 25 | import dalvik.system.CloseGuard; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 26 | |
| 27 | /** |
| 28 | * Abstraction for an Animation that can be applied to Views, Surfaces, or |
| 29 | * other objects. See the {@link android.view.animation animation package |
| 30 | * description file}. |
| 31 | */ |
| 32 | public abstract class Animation implements Cloneable { |
| 33 | /** |
| 34 | * Repeat the animation indefinitely. |
| 35 | */ |
| 36 | public static final int INFINITE = -1; |
| 37 | |
| 38 | /** |
| 39 | * When the animation reaches the end and the repeat count is INFINTE_REPEAT |
| 40 | * or a positive value, the animation restarts from the beginning. |
| 41 | */ |
| 42 | public static final int RESTART = 1; |
| 43 | |
| 44 | /** |
| 45 | * When the animation reaches the end and the repeat count is INFINTE_REPEAT |
| 46 | * or a positive value, the animation plays backward (and then forward again). |
| 47 | */ |
| 48 | public static final int REVERSE = 2; |
| 49 | |
| 50 | /** |
| 51 | * Can be used as the start time to indicate the start time should be the current |
| 52 | * time when {@link #getTransformation(long, Transformation)} is invoked for the |
| 53 | * first animation frame. This can is useful for short animations. |
| 54 | */ |
| 55 | public static final int START_ON_FIRST_FRAME = -1; |
| 56 | |
| 57 | /** |
| 58 | * The specified dimension is an absolute number of pixels. |
| 59 | */ |
| 60 | public static final int ABSOLUTE = 0; |
| 61 | |
| 62 | /** |
| 63 | * The specified dimension holds a float and should be multiplied by the |
| 64 | * height or width of the object being animated. |
| 65 | */ |
| 66 | public static final int RELATIVE_TO_SELF = 1; |
| 67 | |
| 68 | /** |
| 69 | * The specified dimension holds a float and should be multiplied by the |
| 70 | * height or width of the parent of the object being animated. |
| 71 | */ |
| 72 | public static final int RELATIVE_TO_PARENT = 2; |
| 73 | |
| 74 | /** |
| 75 | * Requests that the content being animated be kept in its current Z |
| 76 | * order. |
| 77 | */ |
| 78 | public static final int ZORDER_NORMAL = 0; |
| 79 | |
| 80 | /** |
| 81 | * Requests that the content being animated be forced on top of all other |
| 82 | * content for the duration of the animation. |
| 83 | */ |
| 84 | public static final int ZORDER_TOP = 1; |
| 85 | |
| 86 | /** |
| 87 | * Requests that the content being animated be forced under all other |
| 88 | * content for the duration of the animation. |
| 89 | */ |
| 90 | public static final int ZORDER_BOTTOM = -1; |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 91 | |
| 92 | private static final boolean USE_CLOSEGUARD |
| 93 | = SystemProperties.getBoolean("log.closeguard.Animation", false); |
| 94 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 95 | /** |
| 96 | * Set by {@link #getTransformation(long, Transformation)} when the animation ends. |
| 97 | */ |
| 98 | boolean mEnded = false; |
| 99 | |
| 100 | /** |
| 101 | * Set by {@link #getTransformation(long, Transformation)} when the animation starts. |
| 102 | */ |
| 103 | boolean mStarted = false; |
| 104 | |
| 105 | /** |
| 106 | * Set by {@link #getTransformation(long, Transformation)} when the animation repeats |
| 107 | * in REVERSE mode. |
| 108 | */ |
| 109 | boolean mCycleFlip = false; |
| 110 | |
| 111 | /** |
| 112 | * This value must be set to true by {@link #initialize(int, int, int, int)}. It |
| 113 | * indicates the animation was successfully initialized and can be played. |
| 114 | */ |
| 115 | boolean mInitialized = false; |
| 116 | |
| 117 | /** |
| 118 | * Indicates whether the animation transformation should be applied before the |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 119 | * animation starts. The value of this variable is only relevant if mFillEnabled is true; |
| 120 | * otherwise it is assumed to be true. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 121 | */ |
| 122 | boolean mFillBefore = true; |
| 123 | |
| 124 | /** |
| 125 | * Indicates whether the animation transformation should be applied after the |
| 126 | * animation ends. |
| 127 | */ |
| 128 | boolean mFillAfter = false; |
| 129 | |
| 130 | /** |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 131 | * Indicates whether fillBefore should be taken into account. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 132 | */ |
| 133 | boolean mFillEnabled = false; |
| 134 | |
| 135 | /** |
| 136 | * The time in milliseconds at which the animation must start; |
| 137 | */ |
| 138 | long mStartTime = -1; |
| 139 | |
| 140 | /** |
| 141 | * The delay in milliseconds after which the animation must start. When the |
| 142 | * start offset is > 0, the start time of the animation is startTime + startOffset. |
| 143 | */ |
| 144 | long mStartOffset; |
| 145 | |
| 146 | /** |
| 147 | * The duration of one animation cycle in milliseconds. |
| 148 | */ |
| 149 | long mDuration; |
| 150 | |
| 151 | /** |
| 152 | * The number of times the animation must repeat. By default, an animation repeats |
| 153 | * indefinitely. |
| 154 | */ |
| 155 | int mRepeatCount = 0; |
| 156 | |
| 157 | /** |
| 158 | * Indicates how many times the animation was repeated. |
| 159 | */ |
| 160 | int mRepeated = 0; |
| 161 | |
| 162 | /** |
| 163 | * The behavior of the animation when it repeats. The repeat mode is either |
| 164 | * {@link #RESTART} or {@link #REVERSE}. |
| 165 | * |
| 166 | */ |
| 167 | int mRepeatMode = RESTART; |
| 168 | |
| 169 | /** |
| 170 | * The interpolator used by the animation to smooth the movement. |
| 171 | */ |
| 172 | Interpolator mInterpolator; |
| 173 | |
| 174 | /** |
| 175 | * The animation listener to be notified when the animation starts, ends or repeats. |
| 176 | */ |
| 177 | AnimationListener mListener; |
| 178 | |
| 179 | /** |
| 180 | * Desired Z order mode during animation. |
| 181 | */ |
| 182 | private int mZAdjustment; |
Chet Haase | 4846032 | 2010-06-11 14:22:25 -0700 | [diff] [blame] | 183 | |
| 184 | /** |
Dianne Hackborn | de75cb4 | 2011-03-02 17:11:21 -0800 | [diff] [blame] | 185 | * Desired background color behind animation. |
| 186 | */ |
| 187 | private int mBackgroundColor; |
| 188 | |
| 189 | /** |
Chet Haase | 4846032 | 2010-06-11 14:22:25 -0700 | [diff] [blame] | 190 | * scalefactor to apply to pivot points, etc. during animation. Subclasses retrieve the |
| 191 | * value via getScaleFactor(). |
| 192 | */ |
| 193 | private float mScaleFactor = 1f; |
| 194 | |
Jean-Baptiste Queru | 9db3d07 | 2009-11-12 18:45:53 -0800 | [diff] [blame] | 195 | /** |
| 196 | * Don't animate the wallpaper. |
| 197 | */ |
| 198 | private boolean mDetachWallpaper = false; |
| 199 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 200 | private boolean mMore = true; |
| 201 | private boolean mOneMoreTime = true; |
| 202 | |
| 203 | RectF mPreviousRegion = new RectF(); |
| 204 | RectF mRegion = new RectF(); |
| 205 | Transformation mTransformation = new Transformation(); |
| 206 | Transformation mPreviousTransformation = new Transformation(); |
| 207 | |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 208 | private final CloseGuard guard = CloseGuard.get(); |
| 209 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 210 | /** |
| 211 | * Creates a new animation with a duration of 0ms, the default interpolator, with |
| 212 | * fillBefore set to true and fillAfter set to false |
| 213 | */ |
| 214 | public Animation() { |
| 215 | ensureInterpolator(); |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Creates a new animation whose parameters come from the specified context and |
| 220 | * attributes set. |
| 221 | * |
| 222 | * @param context the application environment |
| 223 | * @param attrs the set of attributes holding the animation parameters |
| 224 | */ |
| 225 | public Animation(Context context, AttributeSet attrs) { |
| 226 | TypedArray a = context.obtainStyledAttributes(attrs, com.android.internal.R.styleable.Animation); |
| 227 | |
| 228 | setDuration((long) a.getInt(com.android.internal.R.styleable.Animation_duration, 0)); |
| 229 | setStartOffset((long) a.getInt(com.android.internal.R.styleable.Animation_startOffset, 0)); |
| 230 | |
| 231 | setFillEnabled(a.getBoolean(com.android.internal.R.styleable.Animation_fillEnabled, mFillEnabled)); |
| 232 | setFillBefore(a.getBoolean(com.android.internal.R.styleable.Animation_fillBefore, mFillBefore)); |
| 233 | setFillAfter(a.getBoolean(com.android.internal.R.styleable.Animation_fillAfter, mFillAfter)); |
| 234 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 235 | setRepeatCount(a.getInt(com.android.internal.R.styleable.Animation_repeatCount, mRepeatCount)); |
| 236 | setRepeatMode(a.getInt(com.android.internal.R.styleable.Animation_repeatMode, RESTART)); |
| 237 | |
| 238 | setZAdjustment(a.getInt(com.android.internal.R.styleable.Animation_zAdjustment, ZORDER_NORMAL)); |
| 239 | |
Dianne Hackborn | de75cb4 | 2011-03-02 17:11:21 -0800 | [diff] [blame] | 240 | setBackgroundColor(a.getInt(com.android.internal.R.styleable.Animation_background, 0)); |
| 241 | |
Jean-Baptiste Queru | 9db3d07 | 2009-11-12 18:45:53 -0800 | [diff] [blame] | 242 | setDetachWallpaper(a.getBoolean(com.android.internal.R.styleable.Animation_detachWallpaper, false)); |
Dianne Hackborn | ab0f485 | 2011-09-12 16:59:06 -0700 | [diff] [blame] | 243 | |
| 244 | final int resID = a.getResourceId(com.android.internal.R.styleable.Animation_interpolator, 0); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 245 | |
| 246 | a.recycle(); |
Dianne Hackborn | ab0f485 | 2011-09-12 16:59:06 -0700 | [diff] [blame] | 247 | |
| 248 | if (resID > 0) { |
| 249 | setInterpolator(context, resID); |
| 250 | } |
| 251 | |
| 252 | ensureInterpolator(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | @Override |
| 256 | protected Animation clone() throws CloneNotSupportedException { |
| 257 | final Animation animation = (Animation) super.clone(); |
| 258 | animation.mPreviousRegion = new RectF(); |
| 259 | animation.mRegion = new RectF(); |
| 260 | animation.mTransformation = new Transformation(); |
| 261 | animation.mPreviousTransformation = new Transformation(); |
| 262 | return animation; |
| 263 | } |
| 264 | |
| 265 | /** |
| 266 | * Reset the initialization state of this animation. |
| 267 | * |
| 268 | * @see #initialize(int, int, int, int) |
| 269 | */ |
| 270 | public void reset() { |
| 271 | mPreviousRegion.setEmpty(); |
| 272 | mPreviousTransformation.clear(); |
| 273 | mInitialized = false; |
| 274 | mCycleFlip = false; |
| 275 | mRepeated = 0; |
| 276 | mMore = true; |
| 277 | mOneMoreTime = true; |
| 278 | } |
| 279 | |
| 280 | /** |
Romain Guy | 305a2eb | 2010-02-09 11:30:44 -0800 | [diff] [blame] | 281 | * Cancel the animation. Cancelling an animation invokes the animation |
| 282 | * listener, if set, to notify the end of the animation. |
| 283 | * |
| 284 | * If you cancel an animation manually, you must call {@link #reset()} |
| 285 | * before starting the animation again. |
| 286 | * |
| 287 | * @see #reset() |
| 288 | * @see #start() |
| 289 | * @see #startNow() |
| 290 | */ |
| 291 | public void cancel() { |
| 292 | if (mStarted && !mEnded) { |
| 293 | if (mListener != null) mListener.onAnimationEnd(this); |
| 294 | mEnded = true; |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 295 | guard.close(); |
Romain Guy | 305a2eb | 2010-02-09 11:30:44 -0800 | [diff] [blame] | 296 | } |
| 297 | // Make sure we move the animation to the end |
| 298 | mStartTime = Long.MIN_VALUE; |
| 299 | mMore = mOneMoreTime = false; |
| 300 | } |
| 301 | |
| 302 | /** |
Romain Guy | b4a107d | 2010-02-09 18:50:08 -0800 | [diff] [blame] | 303 | * @hide |
| 304 | */ |
| 305 | public void detach() { |
| 306 | if (mStarted && !mEnded) { |
Romain Guy | b4a107d | 2010-02-09 18:50:08 -0800 | [diff] [blame] | 307 | mEnded = true; |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 308 | guard.close(); |
Romain Guy | 5180d1c | 2010-02-10 11:29:22 -0800 | [diff] [blame] | 309 | if (mListener != null) mListener.onAnimationEnd(this); |
Romain Guy | b4a107d | 2010-02-09 18:50:08 -0800 | [diff] [blame] | 310 | } |
| 311 | } |
| 312 | |
| 313 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 314 | * Whether or not the animation has been initialized. |
| 315 | * |
| 316 | * @return Has this animation been initialized. |
| 317 | * @see #initialize(int, int, int, int) |
| 318 | */ |
| 319 | public boolean isInitialized() { |
| 320 | return mInitialized; |
| 321 | } |
| 322 | |
| 323 | /** |
| 324 | * Initialize this animation with the dimensions of the object being |
| 325 | * animated as well as the objects parents. (This is to support animation |
Chet Haase | 84c949f | 2011-12-20 10:38:31 -0800 | [diff] [blame] | 326 | * sizes being specified relative to these dimensions.) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 327 | * |
Chet Haase | 49afa5b | 2010-08-23 11:39:53 -0700 | [diff] [blame] | 328 | * <p>Objects that interpret Animations should call this method when |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 329 | * the sizes of the object being animated and its parent are known, and |
| 330 | * before calling {@link #getTransformation}. |
| 331 | * |
| 332 | * |
| 333 | * @param width Width of the object being animated |
| 334 | * @param height Height of the object being animated |
| 335 | * @param parentWidth Width of the animated object's parent |
| 336 | * @param parentHeight Height of the animated object's parent |
| 337 | */ |
| 338 | public void initialize(int width, int height, int parentWidth, int parentHeight) { |
| 339 | reset(); |
| 340 | mInitialized = true; |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * Sets the acceleration curve for this animation. The interpolator is loaded as |
| 345 | * a resource from the specified context. |
| 346 | * |
| 347 | * @param context The application environment |
| 348 | * @param resID The resource identifier of the interpolator to load |
| 349 | * @attr ref android.R.styleable#Animation_interpolator |
| 350 | */ |
| 351 | public void setInterpolator(Context context, int resID) { |
| 352 | setInterpolator(AnimationUtils.loadInterpolator(context, resID)); |
| 353 | } |
| 354 | |
| 355 | /** |
| 356 | * Sets the acceleration curve for this animation. Defaults to a linear |
| 357 | * interpolation. |
| 358 | * |
| 359 | * @param i The interpolator which defines the acceleration curve |
| 360 | * @attr ref android.R.styleable#Animation_interpolator |
| 361 | */ |
| 362 | public void setInterpolator(Interpolator i) { |
| 363 | mInterpolator = i; |
| 364 | } |
| 365 | |
| 366 | /** |
| 367 | * When this animation should start relative to the start time. This is most |
| 368 | * useful when composing complex animations using an {@link AnimationSet } |
| 369 | * where some of the animations components start at different times. |
| 370 | * |
| 371 | * @param startOffset When this Animation should start, in milliseconds from |
| 372 | * the start time of the root AnimationSet. |
| 373 | * @attr ref android.R.styleable#Animation_startOffset |
| 374 | */ |
| 375 | public void setStartOffset(long startOffset) { |
| 376 | mStartOffset = startOffset; |
| 377 | } |
| 378 | |
| 379 | /** |
| 380 | * How long this animation should last. The duration cannot be negative. |
| 381 | * |
| 382 | * @param durationMillis Duration in milliseconds |
| 383 | * |
Jean-Baptiste Queru | 9db3d07 | 2009-11-12 18:45:53 -0800 | [diff] [blame] | 384 | * @throws java.lang.IllegalArgumentException if the duration is < 0 |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 385 | * |
| 386 | * @attr ref android.R.styleable#Animation_duration |
| 387 | */ |
| 388 | public void setDuration(long durationMillis) { |
| 389 | if (durationMillis < 0) { |
| 390 | throw new IllegalArgumentException("Animation duration cannot be negative"); |
| 391 | } |
| 392 | mDuration = durationMillis; |
| 393 | } |
| 394 | |
| 395 | /** |
| 396 | * Ensure that the duration that this animation will run is not longer |
| 397 | * than <var>durationMillis</var>. In addition to adjusting the duration |
| 398 | * itself, this ensures that the repeat count also will not make it run |
| 399 | * longer than the given time. |
| 400 | * |
| 401 | * @param durationMillis The maximum duration the animation is allowed |
| 402 | * to run. |
| 403 | */ |
| 404 | public void restrictDuration(long durationMillis) { |
The Android Open Source Project | 4df2423 | 2009-03-05 14:34:35 -0800 | [diff] [blame] | 405 | // If we start after the duration, then we just won't run. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 406 | if (mStartOffset > durationMillis) { |
| 407 | mStartOffset = durationMillis; |
| 408 | mDuration = 0; |
| 409 | mRepeatCount = 0; |
| 410 | return; |
| 411 | } |
| 412 | |
| 413 | long dur = mDuration + mStartOffset; |
| 414 | if (dur > durationMillis) { |
The Android Open Source Project | 4df2423 | 2009-03-05 14:34:35 -0800 | [diff] [blame] | 415 | mDuration = durationMillis-mStartOffset; |
| 416 | dur = durationMillis; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 417 | } |
The Android Open Source Project | 4df2423 | 2009-03-05 14:34:35 -0800 | [diff] [blame] | 418 | // If the duration is 0 or less, then we won't run. |
| 419 | if (mDuration <= 0) { |
| 420 | mDuration = 0; |
| 421 | mRepeatCount = 0; |
| 422 | return; |
| 423 | } |
| 424 | // Reduce the number of repeats to keep below the maximum duration. |
| 425 | // The comparison between mRepeatCount and duration is to catch |
| 426 | // overflows after multiplying them. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 427 | if (mRepeatCount < 0 || mRepeatCount > durationMillis |
| 428 | || (dur*mRepeatCount) > durationMillis) { |
The Android Open Source Project | 4df2423 | 2009-03-05 14:34:35 -0800 | [diff] [blame] | 429 | // Figure out how many times to do the animation. Subtract 1 since |
| 430 | // repeat count is the number of times to repeat so 0 runs once. |
| 431 | mRepeatCount = (int)(durationMillis/dur) - 1; |
| 432 | if (mRepeatCount < 0) { |
| 433 | mRepeatCount = 0; |
| 434 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 435 | } |
| 436 | } |
| 437 | |
| 438 | /** |
| 439 | * How much to scale the duration by. |
| 440 | * |
| 441 | * @param scale The amount to scale the duration. |
| 442 | */ |
| 443 | public void scaleCurrentDuration(float scale) { |
| 444 | mDuration = (long) (mDuration * scale); |
Dianne Hackborn | a4bacb8 | 2011-08-24 15:12:38 -0700 | [diff] [blame] | 445 | mStartOffset = (long) (mStartOffset * scale); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 446 | } |
| 447 | |
| 448 | /** |
| 449 | * When this animation should start. When the start time is set to |
| 450 | * {@link #START_ON_FIRST_FRAME}, the animation will start the first time |
| 451 | * {@link #getTransformation(long, Transformation)} is invoked. The time passed |
| 452 | * to this method should be obtained by calling |
| 453 | * {@link AnimationUtils#currentAnimationTimeMillis()} instead of |
| 454 | * {@link System#currentTimeMillis()}. |
| 455 | * |
| 456 | * @param startTimeMillis the start time in milliseconds |
| 457 | */ |
| 458 | public void setStartTime(long startTimeMillis) { |
| 459 | mStartTime = startTimeMillis; |
| 460 | mStarted = mEnded = false; |
| 461 | mCycleFlip = false; |
| 462 | mRepeated = 0; |
| 463 | mMore = true; |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Convenience method to start the animation the first time |
| 468 | * {@link #getTransformation(long, Transformation)} is invoked. |
| 469 | */ |
| 470 | public void start() { |
| 471 | setStartTime(-1); |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Convenience method to start the animation at the current time in |
| 476 | * milliseconds. |
| 477 | */ |
| 478 | public void startNow() { |
| 479 | setStartTime(AnimationUtils.currentAnimationTimeMillis()); |
| 480 | } |
| 481 | |
| 482 | /** |
| 483 | * Defines what this animation should do when it reaches the end. This |
| 484 | * setting is applied only when the repeat count is either greater than |
| 485 | * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. |
| 486 | * |
| 487 | * @param repeatMode {@link #RESTART} or {@link #REVERSE} |
| 488 | * @attr ref android.R.styleable#Animation_repeatMode |
| 489 | */ |
| 490 | public void setRepeatMode(int repeatMode) { |
| 491 | mRepeatMode = repeatMode; |
| 492 | } |
| 493 | |
| 494 | /** |
| 495 | * Sets how many times the animation should be repeated. If the repeat |
| 496 | * count is 0, the animation is never repeated. If the repeat count is |
| 497 | * greater than 0 or {@link #INFINITE}, the repeat mode will be taken |
The Android Open Source Project | 4df2423 | 2009-03-05 14:34:35 -0800 | [diff] [blame] | 498 | * into account. The repeat count is 0 by default. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 499 | * |
| 500 | * @param repeatCount the number of times the animation should be repeated |
| 501 | * @attr ref android.R.styleable#Animation_repeatCount |
| 502 | */ |
| 503 | public void setRepeatCount(int repeatCount) { |
| 504 | if (repeatCount < 0) { |
| 505 | repeatCount = INFINITE; |
| 506 | } |
| 507 | mRepeatCount = repeatCount; |
| 508 | } |
| 509 | |
| 510 | /** |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 511 | * If fillEnabled is true, this animation will apply the value of fillBefore. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 512 | * |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 513 | * @return true if the animation will take fillBefore into account |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 514 | * @attr ref android.R.styleable#Animation_fillEnabled |
| 515 | */ |
| 516 | public boolean isFillEnabled() { |
| 517 | return mFillEnabled; |
| 518 | } |
| 519 | |
| 520 | /** |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 521 | * If fillEnabled is true, the animation will apply the value of fillBefore. |
| 522 | * Otherwise, fillBefore is ignored and the animation |
| 523 | * transformation is always applied until the animation ends. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 524 | * |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 525 | * @param fillEnabled true if the animation should take the value of fillBefore into account |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 526 | * @attr ref android.R.styleable#Animation_fillEnabled |
| 527 | * |
| 528 | * @see #setFillBefore(boolean) |
| 529 | * @see #setFillAfter(boolean) |
| 530 | */ |
| 531 | public void setFillEnabled(boolean fillEnabled) { |
| 532 | mFillEnabled = fillEnabled; |
| 533 | } |
| 534 | |
| 535 | /** |
| 536 | * If fillBefore is true, this animation will apply its transformation |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 537 | * before the start time of the animation. Defaults to true if |
| 538 | * {@link #setFillEnabled(boolean)} is not set to true. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 539 | * Note that this applies when using an {@link |
| 540 | * android.view.animation.AnimationSet AnimationSet} to chain |
| 541 | * animations. The transformation is not applied before the AnimationSet |
| 542 | * itself starts. |
| 543 | * |
| 544 | * @param fillBefore true if the animation should apply its transformation before it starts |
| 545 | * @attr ref android.R.styleable#Animation_fillBefore |
| 546 | * |
| 547 | * @see #setFillEnabled(boolean) |
| 548 | */ |
| 549 | public void setFillBefore(boolean fillBefore) { |
| 550 | mFillBefore = fillBefore; |
| 551 | } |
| 552 | |
| 553 | /** |
| 554 | * If fillAfter is true, the transformation that this animation performed |
| 555 | * will persist when it is finished. Defaults to false if not set. |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 556 | * Note that this applies to individual animations and when using an {@link |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 557 | * android.view.animation.AnimationSet AnimationSet} to chain |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 558 | * animations. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 559 | * |
| 560 | * @param fillAfter true if the animation should apply its transformation after it ends |
| 561 | * @attr ref android.R.styleable#Animation_fillAfter |
| 562 | * |
| 563 | * @see #setFillEnabled(boolean) |
| 564 | */ |
| 565 | public void setFillAfter(boolean fillAfter) { |
| 566 | mFillAfter = fillAfter; |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * Set the Z ordering mode to use while running the animation. |
| 571 | * |
| 572 | * @param zAdjustment The desired mode, one of {@link #ZORDER_NORMAL}, |
| 573 | * {@link #ZORDER_TOP}, or {@link #ZORDER_BOTTOM}. |
| 574 | * @attr ref android.R.styleable#Animation_zAdjustment |
| 575 | */ |
| 576 | public void setZAdjustment(int zAdjustment) { |
| 577 | mZAdjustment = zAdjustment; |
| 578 | } |
| 579 | |
| 580 | /** |
Dianne Hackborn | de75cb4 | 2011-03-02 17:11:21 -0800 | [diff] [blame] | 581 | * Set background behind animation. |
| 582 | * |
| 583 | * @param bg The background color. If 0, no background. Currently must |
| 584 | * be black, with any desired alpha level. |
| 585 | */ |
| 586 | public void setBackgroundColor(int bg) { |
| 587 | mBackgroundColor = bg; |
| 588 | } |
| 589 | |
| 590 | /** |
Chet Haase | 4846032 | 2010-06-11 14:22:25 -0700 | [diff] [blame] | 591 | * The scale factor is set by the call to <code>getTransformation</code>. Overrides of |
| 592 | * {@link #getTransformation(long, Transformation, float)} will get this value |
| 593 | * directly. Overrides of {@link #applyTransformation(float, Transformation)} can |
| 594 | * call this method to get the value. |
| 595 | * |
| 596 | * @return float The scale factor that should be applied to pre-scaled values in |
| 597 | * an Animation such as the pivot points in {@link ScaleAnimation} and {@link RotateAnimation}. |
| 598 | */ |
| 599 | protected float getScaleFactor() { |
| 600 | return mScaleFactor; |
| 601 | } |
| 602 | |
| 603 | /** |
Jean-Baptiste Queru | 9db3d07 | 2009-11-12 18:45:53 -0800 | [diff] [blame] | 604 | * If detachWallpaper is true, and this is a window animation of a window |
| 605 | * that has a wallpaper background, then the window will be detached from |
| 606 | * the wallpaper while it runs. That is, the animation will only be applied |
| 607 | * to the window, and the wallpaper behind it will remain static. |
| 608 | * |
| 609 | * @param detachWallpaper true if the wallpaper should be detached from the animation |
| 610 | * @attr ref android.R.styleable#Animation_detachWallpaper |
| 611 | */ |
| 612 | public void setDetachWallpaper(boolean detachWallpaper) { |
| 613 | mDetachWallpaper = detachWallpaper; |
| 614 | } |
| 615 | |
| 616 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 617 | * Gets the acceleration curve type for this animation. |
| 618 | * |
| 619 | * @return the {@link Interpolator} associated to this animation |
| 620 | * @attr ref android.R.styleable#Animation_interpolator |
| 621 | */ |
| 622 | public Interpolator getInterpolator() { |
| 623 | return mInterpolator; |
| 624 | } |
| 625 | |
| 626 | /** |
| 627 | * When this animation should start. If the animation has not startet yet, |
| 628 | * this method might return {@link #START_ON_FIRST_FRAME}. |
| 629 | * |
| 630 | * @return the time in milliseconds when the animation should start or |
| 631 | * {@link #START_ON_FIRST_FRAME} |
| 632 | */ |
| 633 | public long getStartTime() { |
| 634 | return mStartTime; |
| 635 | } |
| 636 | |
| 637 | /** |
| 638 | * How long this animation should last |
| 639 | * |
| 640 | * @return the duration in milliseconds of the animation |
| 641 | * @attr ref android.R.styleable#Animation_duration |
| 642 | */ |
| 643 | public long getDuration() { |
| 644 | return mDuration; |
| 645 | } |
| 646 | |
| 647 | /** |
| 648 | * When this animation should start, relative to StartTime |
| 649 | * |
| 650 | * @return the start offset in milliseconds |
| 651 | * @attr ref android.R.styleable#Animation_startOffset |
| 652 | */ |
| 653 | public long getStartOffset() { |
| 654 | return mStartOffset; |
| 655 | } |
| 656 | |
| 657 | /** |
| 658 | * Defines what this animation should do when it reaches the end. |
| 659 | * |
| 660 | * @return either one of {@link #REVERSE} or {@link #RESTART} |
| 661 | * @attr ref android.R.styleable#Animation_repeatMode |
| 662 | */ |
| 663 | public int getRepeatMode() { |
| 664 | return mRepeatMode; |
| 665 | } |
| 666 | |
| 667 | /** |
| 668 | * Defines how many times the animation should repeat. The default value |
| 669 | * is 0. |
| 670 | * |
| 671 | * @return the number of times the animation should repeat, or {@link #INFINITE} |
| 672 | * @attr ref android.R.styleable#Animation_repeatCount |
| 673 | */ |
| 674 | public int getRepeatCount() { |
| 675 | return mRepeatCount; |
| 676 | } |
| 677 | |
| 678 | /** |
| 679 | * If fillBefore is true, this animation will apply its transformation |
Chet Haase | d8991c4 | 2011-08-24 07:20:53 -0700 | [diff] [blame] | 680 | * before the start time of the animation. If fillBefore is false and |
| 681 | * {@link #isFillEnabled() fillEnabled} is true, the transformation will not be applied until |
| 682 | * the start time of the animation. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 683 | * |
| 684 | * @return true if the animation applies its transformation before it starts |
| 685 | * @attr ref android.R.styleable#Animation_fillBefore |
| 686 | */ |
| 687 | public boolean getFillBefore() { |
| 688 | return mFillBefore; |
| 689 | } |
| 690 | |
| 691 | /** |
| 692 | * If fillAfter is true, this animation will apply its transformation |
| 693 | * after the end time of the animation. |
| 694 | * |
| 695 | * @return true if the animation applies its transformation after it ends |
| 696 | * @attr ref android.R.styleable#Animation_fillAfter |
| 697 | */ |
| 698 | public boolean getFillAfter() { |
| 699 | return mFillAfter; |
| 700 | } |
| 701 | |
| 702 | /** |
| 703 | * Returns the Z ordering mode to use while running the animation as |
| 704 | * previously set by {@link #setZAdjustment}. |
| 705 | * |
| 706 | * @return Returns one of {@link #ZORDER_NORMAL}, |
| 707 | * {@link #ZORDER_TOP}, or {@link #ZORDER_BOTTOM}. |
| 708 | * @attr ref android.R.styleable#Animation_zAdjustment |
| 709 | */ |
| 710 | public int getZAdjustment() { |
| 711 | return mZAdjustment; |
| 712 | } |
| 713 | |
| 714 | /** |
Dianne Hackborn | de75cb4 | 2011-03-02 17:11:21 -0800 | [diff] [blame] | 715 | * Returns the background color behind the animation. |
| 716 | */ |
| 717 | public int getBackgroundColor() { |
| 718 | return mBackgroundColor; |
| 719 | } |
| 720 | |
| 721 | /** |
Jean-Baptiste Queru | 9db3d07 | 2009-11-12 18:45:53 -0800 | [diff] [blame] | 722 | * Return value of {@link #setDetachWallpaper(boolean)}. |
| 723 | * @attr ref android.R.styleable#Animation_detachWallpaper |
| 724 | */ |
| 725 | public boolean getDetachWallpaper() { |
| 726 | return mDetachWallpaper; |
| 727 | } |
| 728 | |
| 729 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 730 | * <p>Indicates whether or not this animation will affect the transformation |
| 731 | * matrix. For instance, a fade animation will not affect the matrix whereas |
| 732 | * a scale animation will.</p> |
| 733 | * |
| 734 | * @return true if this animation will change the transformation matrix |
| 735 | */ |
| 736 | public boolean willChangeTransformationMatrix() { |
| 737 | // assume we will change the matrix |
| 738 | return true; |
| 739 | } |
| 740 | |
| 741 | /** |
| 742 | * <p>Indicates whether or not this animation will affect the bounds of the |
| 743 | * animated view. For instance, a fade animation will not affect the bounds |
| 744 | * whereas a 200% scale animation will.</p> |
| 745 | * |
| 746 | * @return true if this animation will change the view's bounds |
| 747 | */ |
| 748 | public boolean willChangeBounds() { |
| 749 | // assume we will change the bounds |
| 750 | return true; |
| 751 | } |
| 752 | |
| 753 | /** |
| 754 | * <p>Binds an animation listener to this animation. The animation listener |
| 755 | * is notified of animation events such as the end of the animation or the |
| 756 | * repetition of the animation.</p> |
| 757 | * |
| 758 | * @param listener the animation listener to be notified |
| 759 | */ |
| 760 | public void setAnimationListener(AnimationListener listener) { |
| 761 | mListener = listener; |
| 762 | } |
| 763 | |
| 764 | /** |
| 765 | * Gurantees that this animation has an interpolator. Will use |
| 766 | * a AccelerateDecelerateInterpolator is nothing else was specified. |
| 767 | */ |
| 768 | protected void ensureInterpolator() { |
| 769 | if (mInterpolator == null) { |
| 770 | mInterpolator = new AccelerateDecelerateInterpolator(); |
| 771 | } |
| 772 | } |
| 773 | |
| 774 | /** |
| 775 | * Compute a hint at how long the entire animation may last, in milliseconds. |
| 776 | * Animations can be written to cause themselves to run for a different |
| 777 | * duration than what is computed here, but generally this should be |
| 778 | * accurate. |
| 779 | */ |
| 780 | public long computeDurationHint() { |
| 781 | return (getStartOffset() + getDuration()) * (getRepeatCount() + 1); |
| 782 | } |
| 783 | |
| 784 | /** |
| 785 | * Gets the transformation to apply at a specified point in time. Implementations of this |
| 786 | * method should always replace the specified Transformation or document they are doing |
| 787 | * otherwise. |
| 788 | * |
| 789 | * @param currentTime Where we are in the animation. This is wall clock time. |
Dianne Hackborn | 6908cd1 | 2010-11-08 15:11:16 -0800 | [diff] [blame] | 790 | * @param outTransformation A transformation object that is provided by the |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 791 | * caller and will be filled in by the animation. |
| 792 | * @return True if the animation is still running |
| 793 | */ |
| 794 | public boolean getTransformation(long currentTime, Transformation outTransformation) { |
Chet Haase | 4846032 | 2010-06-11 14:22:25 -0700 | [diff] [blame] | 795 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 796 | if (mStartTime == -1) { |
| 797 | mStartTime = currentTime; |
| 798 | } |
| 799 | |
| 800 | final long startOffset = getStartOffset(); |
| 801 | final long duration = mDuration; |
| 802 | float normalizedTime; |
| 803 | if (duration != 0) { |
| 804 | normalizedTime = ((float) (currentTime - (mStartTime + startOffset))) / |
| 805 | (float) duration; |
| 806 | } else { |
| 807 | // time is a step-change with a zero duration |
| 808 | normalizedTime = currentTime < mStartTime ? 0.0f : 1.0f; |
| 809 | } |
| 810 | |
| 811 | final boolean expired = normalizedTime >= 1.0f; |
| 812 | mMore = !expired; |
| 813 | |
| 814 | if (!mFillEnabled) normalizedTime = Math.max(Math.min(normalizedTime, 1.0f), 0.0f); |
| 815 | |
| 816 | if ((normalizedTime >= 0.0f || mFillBefore) && (normalizedTime <= 1.0f || mFillAfter)) { |
| 817 | if (!mStarted) { |
| 818 | if (mListener != null) { |
| 819 | mListener.onAnimationStart(this); |
| 820 | } |
| 821 | mStarted = true; |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 822 | if (USE_CLOSEGUARD) { |
| 823 | guard.open("cancel or detach or getTransformation"); |
| 824 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 825 | } |
| 826 | |
| 827 | if (mFillEnabled) normalizedTime = Math.max(Math.min(normalizedTime, 1.0f), 0.0f); |
| 828 | |
| 829 | if (mCycleFlip) { |
| 830 | normalizedTime = 1.0f - normalizedTime; |
| 831 | } |
| 832 | |
| 833 | final float interpolatedTime = mInterpolator.getInterpolation(normalizedTime); |
| 834 | applyTransformation(interpolatedTime, outTransformation); |
| 835 | } |
| 836 | |
| 837 | if (expired) { |
| 838 | if (mRepeatCount == mRepeated) { |
| 839 | if (!mEnded) { |
Romain Guy | 5180d1c | 2010-02-10 11:29:22 -0800 | [diff] [blame] | 840 | mEnded = true; |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 841 | guard.close(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 842 | if (mListener != null) { |
| 843 | mListener.onAnimationEnd(this); |
| 844 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 845 | } |
| 846 | } else { |
| 847 | if (mRepeatCount > 0) { |
| 848 | mRepeated++; |
| 849 | } |
| 850 | |
| 851 | if (mRepeatMode == REVERSE) { |
| 852 | mCycleFlip = !mCycleFlip; |
| 853 | } |
| 854 | |
| 855 | mStartTime = -1; |
| 856 | mMore = true; |
| 857 | |
| 858 | if (mListener != null) { |
| 859 | mListener.onAnimationRepeat(this); |
| 860 | } |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | if (!mMore && mOneMoreTime) { |
| 865 | mOneMoreTime = false; |
| 866 | return true; |
| 867 | } |
| 868 | |
| 869 | return mMore; |
| 870 | } |
Chet Haase | 4846032 | 2010-06-11 14:22:25 -0700 | [diff] [blame] | 871 | |
| 872 | /** |
| 873 | * Gets the transformation to apply at a specified point in time. Implementations of this |
| 874 | * method should always replace the specified Transformation or document they are doing |
| 875 | * otherwise. |
| 876 | * |
| 877 | * @param currentTime Where we are in the animation. This is wall clock time. |
| 878 | * @param outTransformation A tranformation object that is provided by the |
| 879 | * caller and will be filled in by the animation. |
| 880 | * @param scale Scaling factor to apply to any inputs to the transform operation, such |
| 881 | * pivot points being rotated or scaled around. |
| 882 | * @return True if the animation is still running |
| 883 | */ |
| 884 | public boolean getTransformation(long currentTime, Transformation outTransformation, |
| 885 | float scale) { |
| 886 | mScaleFactor = scale; |
| 887 | return getTransformation(currentTime, outTransformation); |
| 888 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 889 | |
| 890 | /** |
| 891 | * <p>Indicates whether this animation has started or not.</p> |
| 892 | * |
| 893 | * @return true if the animation has started, false otherwise |
| 894 | */ |
| 895 | public boolean hasStarted() { |
| 896 | return mStarted; |
| 897 | } |
| 898 | |
| 899 | /** |
| 900 | * <p>Indicates whether this animation has ended or not.</p> |
| 901 | * |
| 902 | * @return true if the animation has ended, false otherwise |
| 903 | */ |
| 904 | public boolean hasEnded() { |
| 905 | return mEnded; |
| 906 | } |
| 907 | |
| 908 | /** |
| 909 | * Helper for getTransformation. Subclasses should implement this to apply |
| 910 | * their transforms given an interpolation value. Implementations of this |
| 911 | * method should always replace the specified Transformation or document |
| 912 | * they are doing otherwise. |
| 913 | * |
| 914 | * @param interpolatedTime The value of the normalized time (0.0 to 1.0) |
| 915 | * after it has been run through the interpolation function. |
| 916 | * @param t The Transofrmation object to fill in with the current |
| 917 | * transforms. |
| 918 | */ |
| 919 | protected void applyTransformation(float interpolatedTime, Transformation t) { |
| 920 | } |
| 921 | |
| 922 | /** |
| 923 | * Convert the information in the description of a size to an actual |
| 924 | * dimension |
| 925 | * |
| 926 | * @param type One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or |
| 927 | * Animation.RELATIVE_TO_PARENT. |
| 928 | * @param value The dimension associated with the type parameter |
| 929 | * @param size The size of the object being animated |
| 930 | * @param parentSize The size of the parent of the object being animated |
| 931 | * @return The dimension to use for the animation |
| 932 | */ |
| 933 | protected float resolveSize(int type, float value, int size, int parentSize) { |
| 934 | switch (type) { |
| 935 | case ABSOLUTE: |
| 936 | return value; |
| 937 | case RELATIVE_TO_SELF: |
| 938 | return size * value; |
| 939 | case RELATIVE_TO_PARENT: |
| 940 | return parentSize * value; |
| 941 | default: |
| 942 | return value; |
| 943 | } |
| 944 | } |
| 945 | |
| 946 | /** |
| 947 | * @param left |
| 948 | * @param top |
| 949 | * @param right |
| 950 | * @param bottom |
| 951 | * @param invalidate |
| 952 | * @param transformation |
| 953 | * |
| 954 | * @hide |
| 955 | */ |
| 956 | public void getInvalidateRegion(int left, int top, int right, int bottom, |
| 957 | RectF invalidate, Transformation transformation) { |
| 958 | |
| 959 | final RectF tempRegion = mRegion; |
| 960 | final RectF previousRegion = mPreviousRegion; |
| 961 | |
| 962 | invalidate.set(left, top, right, bottom); |
| 963 | transformation.getMatrix().mapRect(invalidate); |
The Android Open Source Project | 4df2423 | 2009-03-05 14:34:35 -0800 | [diff] [blame] | 964 | // Enlarge the invalidate region to account for rounding errors |
| 965 | invalidate.inset(-1.0f, -1.0f); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 966 | tempRegion.set(invalidate); |
| 967 | invalidate.union(previousRegion); |
| 968 | |
| 969 | previousRegion.set(tempRegion); |
| 970 | |
| 971 | final Transformation tempTransformation = mTransformation; |
| 972 | final Transformation previousTransformation = mPreviousTransformation; |
| 973 | |
| 974 | tempTransformation.set(transformation); |
| 975 | transformation.set(previousTransformation); |
| 976 | previousTransformation.set(tempTransformation); |
| 977 | } |
| 978 | |
| 979 | /** |
| 980 | * @param left |
| 981 | * @param top |
| 982 | * @param right |
| 983 | * @param bottom |
| 984 | * |
| 985 | * @hide |
| 986 | */ |
| 987 | public void initializeInvalidateRegion(int left, int top, int right, int bottom) { |
| 988 | final RectF region = mPreviousRegion; |
| 989 | region.set(left, top, right, bottom); |
The Android Open Source Project | 4df2423 | 2009-03-05 14:34:35 -0800 | [diff] [blame] | 990 | // Enlarge the invalidate region to account for rounding errors |
| 991 | region.inset(-1.0f, -1.0f); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 992 | if (mFillBefore) { |
| 993 | final Transformation previousTransformation = mPreviousTransformation; |
Andreas Agvard | 4766def | 2010-02-05 08:16:01 +0100 | [diff] [blame] | 994 | applyTransformation(mInterpolator.getInterpolation(0.0f), previousTransformation); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 995 | } |
| 996 | } |
| 997 | |
Brian Carlstrom | 877e0b9 | 2010-11-19 14:04:05 -0800 | [diff] [blame] | 998 | protected void finalize() throws Throwable { |
| 999 | try { |
| 1000 | if (guard != null) { |
| 1001 | guard.warnIfOpen(); |
| 1002 | } |
| 1003 | } finally { |
| 1004 | super.finalize(); |
| 1005 | } |
| 1006 | } |
| 1007 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1008 | /** |
Romain Guy | d4745a6 | 2011-07-22 16:03:07 -0700 | [diff] [blame] | 1009 | * Return true if this animation changes the view's alpha property. |
| 1010 | * |
| 1011 | * @hide |
| 1012 | */ |
| 1013 | public boolean hasAlpha() { |
| 1014 | return false; |
| 1015 | } |
| 1016 | |
| 1017 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1018 | * Utility class to parse a string description of a size. |
| 1019 | */ |
| 1020 | protected static class Description { |
| 1021 | /** |
| 1022 | * One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or |
| 1023 | * Animation.RELATIVE_TO_PARENT. |
| 1024 | */ |
| 1025 | public int type; |
| 1026 | |
| 1027 | /** |
| 1028 | * The absolute or relative dimension for this Description. |
| 1029 | */ |
| 1030 | public float value; |
| 1031 | |
| 1032 | /** |
| 1033 | * Size descriptions can appear inthree forms: |
| 1034 | * <ol> |
| 1035 | * <li>An absolute size. This is represented by a number.</li> |
| 1036 | * <li>A size relative to the size of the object being animated. This |
| 1037 | * is represented by a number followed by "%".</li> * |
| 1038 | * <li>A size relative to the size of the parent of object being |
| 1039 | * animated. This is represented by a number followed by "%p".</li> |
| 1040 | * </ol> |
| 1041 | * @param value The typed value to parse |
| 1042 | * @return The parsed version of the description |
| 1043 | */ |
| 1044 | static Description parseValue(TypedValue value) { |
| 1045 | Description d = new Description(); |
| 1046 | if (value == null) { |
| 1047 | d.type = ABSOLUTE; |
| 1048 | d.value = 0; |
| 1049 | } else { |
| 1050 | if (value.type == TypedValue.TYPE_FRACTION) { |
| 1051 | d.type = (value.data & TypedValue.COMPLEX_UNIT_MASK) == |
| 1052 | TypedValue.COMPLEX_UNIT_FRACTION_PARENT ? |
| 1053 | RELATIVE_TO_PARENT : RELATIVE_TO_SELF; |
| 1054 | d.value = TypedValue.complexToFloat(value.data); |
| 1055 | return d; |
| 1056 | } else if (value.type == TypedValue.TYPE_FLOAT) { |
| 1057 | d.type = ABSOLUTE; |
| 1058 | d.value = value.getFloat(); |
| 1059 | return d; |
| 1060 | } else if (value.type >= TypedValue.TYPE_FIRST_INT && |
| 1061 | value.type <= TypedValue.TYPE_LAST_INT) { |
| 1062 | d.type = ABSOLUTE; |
| 1063 | d.value = value.data; |
| 1064 | return d; |
| 1065 | } |
| 1066 | } |
| 1067 | |
| 1068 | d.type = ABSOLUTE; |
| 1069 | d.value = 0.0f; |
| 1070 | |
| 1071 | return d; |
| 1072 | } |
| 1073 | } |
| 1074 | |
| 1075 | /** |
| 1076 | * <p>An animation listener receives notifications from an animation. |
| 1077 | * Notifications indicate animation related events, such as the end or the |
| 1078 | * repetition of the animation.</p> |
| 1079 | */ |
| 1080 | public static interface AnimationListener { |
| 1081 | /** |
| 1082 | * <p>Notifies the start of the animation.</p> |
| 1083 | * |
| 1084 | * @param animation The started animation. |
| 1085 | */ |
| 1086 | void onAnimationStart(Animation animation); |
| 1087 | |
| 1088 | /** |
| 1089 | * <p>Notifies the end of the animation. This callback is not invoked |
| 1090 | * for animations with repeat count set to INFINITE.</p> |
| 1091 | * |
| 1092 | * @param animation The animation which reached its end. |
| 1093 | */ |
| 1094 | void onAnimationEnd(Animation animation); |
| 1095 | |
| 1096 | /** |
| 1097 | * <p>Notifies the repetition of the animation.</p> |
| 1098 | * |
| 1099 | * @param animation The animation which was repeated. |
| 1100 | */ |
| 1101 | void onAnimationRepeat(Animation animation); |
| 1102 | } |
| 1103 | } |