16b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang/* 26b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * Copyright (C) 2012 The Android Open Source Project 36b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * 46b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * Licensed under the Apache License, Version 2.0 (the "License"); 56b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * you may not use this file except in compliance with the License. 66b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * You may obtain a copy of the License at 76b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * 86b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * http://www.apache.org/licenses/LICENSE-2.0 96b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * 106b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * Unless required by applicable law or agreed to in writing, software 116b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * distributed under the License is distributed on an "AS IS" BASIS, 126b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 136b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * See the License for the specific language governing permissions and 146b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang * limitations under the License. 156b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang */ 166b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 176b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changpackage com.android.gallery3d.ui; 186b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 196b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changimport android.content.Context; 206b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changimport android.view.MotionEvent; 216b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 226b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changimport com.android.gallery3d.R; 23517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Changimport com.android.gallery3d.common.Utils; 246b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changimport com.android.gallery3d.util.GalleryUtils; 256b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 266b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Changpublic class UndoBarView extends GLView { 277817979db0c52ffeacb951625b1e821eba303285Ahbong Chang @SuppressWarnings("unused") 286b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private static final String TAG = "UndoBarView"; 296b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 306b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private static final int WHITE = 0xFFFFFFFF; 316b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private static final int GRAY = 0xFFAAAAAA; 326b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 336b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final NinePatchTexture mPanel; 346b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final StringTexture mUndoText; 356b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final StringTexture mDeletedText; 366b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final ResourceTexture mUndoIcon; 376b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mBarHeight; 386b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mBarMargin; 396b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mUndoTextMargin; 406b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mIconSize; 416b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mIconMargin; 426b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mSeparatorTopMargin; 436b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mSeparatorBottomMargin; 446b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mSeparatorRightMargin; 456b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mSeparatorWidth; 466b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mDeletedTextMargin; 476b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private final int mClickRegion; 486b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 496b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private OnClickListener mOnClickListener; 506b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private boolean mDownOnButton; 516b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 526b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // This is the layout of UndoBarView. The unit is dp. 536b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // 546b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // +-+----+----------------+-+--+----+-+------+--+-+ 556b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // 48 | | | Deleted | | | <- | | UNDO | | | 566b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // +-+----+----------------+-+--+----+-+------+--+-+ 576b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // 4 16 1 12 32 8 16 4 586b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang public UndoBarView(Context context) { 597817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mBarHeight = GalleryUtils.dpToPixel(48); 607817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mBarMargin = GalleryUtils.dpToPixel(4); 617817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mUndoTextMargin = GalleryUtils.dpToPixel(16); 627817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mIconMargin = GalleryUtils.dpToPixel(8); 637817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mIconSize = GalleryUtils.dpToPixel(32); 647817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mSeparatorRightMargin = GalleryUtils.dpToPixel(12); 657817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mSeparatorTopMargin = GalleryUtils.dpToPixel(10); 667817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mSeparatorBottomMargin = GalleryUtils.dpToPixel(10); 677817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mSeparatorWidth = GalleryUtils.dpToPixel(1); 687817979db0c52ffeacb951625b1e821eba303285Ahbong Chang mDeletedTextMargin = GalleryUtils.dpToPixel(16); 696b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 706b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mPanel = new NinePatchTexture(context, R.drawable.panel_undo_holo); 716b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoText = StringTexture.newInstance(context.getString(R.string.undo), 726b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang GalleryUtils.dpToPixel(12), GRAY, 0, true); 736b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDeletedText = StringTexture.newInstance( 746b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang context.getString(R.string.deleted), 756b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang GalleryUtils.dpToPixel(16), WHITE); 766b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoIcon = new ResourceTexture( 776b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang context, R.drawable.ic_menu_revert_holo_dark); 786b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mClickRegion = mBarMargin + mUndoTextMargin + mUndoText.getWidth() 796b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang + mIconMargin + mIconSize + mSeparatorRightMargin; 806b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 816b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 826b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang public void setOnClickListener(OnClickListener listener) { 836b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mOnClickListener = listener; 846b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 856b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 866b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang @Override 876b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang protected void onMeasure(int widthSpec, int heightSpec) { 886b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang setMeasuredSize(0 /* unused */, mBarHeight); 896b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 906b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 916b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang @Override 926b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang protected void render(GLCanvas canvas) { 936b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang super.render(canvas); 94517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang advanceAnimation(); 95517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 96517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang canvas.save(GLCanvas.SAVE_FLAG_ALPHA); 97517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang canvas.multiplyAlpha(mAlpha); 98517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 996b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int w = getWidth(); 1006b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int h = getHeight(); 1016b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mPanel.draw(canvas, mBarMargin, 0, w - mBarMargin * 2, mBarHeight); 1026b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1036b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int x = w - mBarMargin; 1046b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int y; 1056b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1066b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang x -= mUndoTextMargin + mUndoText.getWidth(); 1076b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang y = (mBarHeight - mUndoText.getHeight()) / 2; 1086b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoText.draw(canvas, x, y); 1096b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1106b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang x -= mIconMargin + mIconSize; 1116b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang y = (mBarHeight - mIconSize) / 2; 1126b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mUndoIcon.draw(canvas, x, y, mIconSize, mIconSize); 1136b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1146b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang x -= mSeparatorRightMargin + mSeparatorWidth; 1156b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang y = mSeparatorTopMargin; 1166b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang canvas.fillRect(x, y, mSeparatorWidth, 1176b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mBarHeight - mSeparatorTopMargin - mSeparatorBottomMargin, GRAY); 1186b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1196b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang x = mBarMargin + mDeletedTextMargin; 1206b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang y = (mBarHeight - mDeletedText.getHeight()) / 2; 1216b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDeletedText.draw(canvas, x, y); 122517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 123517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang canvas.restore(); 1246b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1256b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1266b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang @Override 1276b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang protected boolean onTouch(MotionEvent event) { 1286b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang switch (event.getAction()) { 1296b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang case MotionEvent.ACTION_DOWN: 1306b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDownOnButton = inUndoButton(event); 1316b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang break; 1326b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang case MotionEvent.ACTION_UP: 1336b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang if (mDownOnButton) { 1346b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang if (mOnClickListener != null && inUndoButton(event)) { 1356b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mOnClickListener.onClick(this); 1366b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1376b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDownOnButton = false; 1386b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1396b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang break; 1406b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang case MotionEvent.ACTION_CANCEL: 1416b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang mDownOnButton = false; 1426b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang break; 1436b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1446b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang return true; 1456b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 1466b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang 1476b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang // Check if the event is on the right of the separator 1486b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang private boolean inUndoButton(MotionEvent event) { 1496b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang float x = event.getX(); 1506b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang float y = event.getY(); 1516b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int w = getWidth(); 1526b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang int h = getHeight(); 1536b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang return (x >= w - mClickRegion && x < w && y >= 0 && y < h); 1546b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang } 155517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 156517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang //////////////////////////////////////////////////////////////////////////// 157517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang // Alpha Animation 158517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang //////////////////////////////////////////////////////////////////////////// 159517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 160517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang private static final long NO_ANIMATION = -1; 161517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang private static long ANIM_TIME = 200; 162517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang private long mAnimationStartTime = NO_ANIMATION; 163517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang private float mFromAlpha, mToAlpha; 164517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang private float mAlpha; 165517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 166517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang private static float getTargetAlpha(int visibility) { 167517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang return (visibility == VISIBLE) ? 1f : 0f; 168517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang } 169517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 1707817979db0c52ffeacb951625b1e821eba303285Ahbong Chang @Override 171517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang public void setVisibility(int visibility) { 172517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang mAlpha = getTargetAlpha(visibility); 173517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang mAnimationStartTime = NO_ANIMATION; 174517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang super.setVisibility(visibility); 175517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang invalidate(); 176517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang } 177517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 178517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang public void animateVisibility(int visibility) { 179517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang float target = getTargetAlpha(visibility); 180517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang if (mAnimationStartTime == NO_ANIMATION && mAlpha == target) return; 181517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang if (mAnimationStartTime != NO_ANIMATION && mToAlpha == target) return; 182517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 183517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang mFromAlpha = mAlpha; 184517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang mToAlpha = target; 185517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang mAnimationStartTime = AnimationTime.startTime(); 186517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 187517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang super.setVisibility(VISIBLE); 188517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang invalidate(); 189517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang } 190517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 191517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang private void advanceAnimation() { 192517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang if (mAnimationStartTime == NO_ANIMATION) return; 193517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 194517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang float delta = (float) (AnimationTime.get() - mAnimationStartTime) / 195517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang ANIM_TIME; 196517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang mAlpha = mFromAlpha + ((mToAlpha > mFromAlpha) ? delta : -delta); 197517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang mAlpha = Utils.clamp(mAlpha, 0f, 1f); 198517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang 199517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang if (mAlpha == mToAlpha) { 200517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang mAnimationStartTime = NO_ANIMATION; 201517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang if (mAlpha == 0) { 202517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang super.setVisibility(INVISIBLE); 203517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang } 204517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang } 205517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang invalidate(); 206517e1bd25305d4e82d101a8c06be0119dde2eab3Chih-Chung Chang } 2076b891c6a3739f8c49d42f9db6fc76cb92c7c5f25Chih-Chung Chang} 208