ztenghui | 62f30e0 | 2014-06-05 09:55:04 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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; |
| 18 | |
John Reck | c01bd11 | 2014-07-18 16:22:09 -0700 | [diff] [blame] | 19 | import android.animation.Animator; |
ztenghui | 62f30e0 | 2014-06-05 09:55:04 -0700 | [diff] [blame] | 20 | import android.animation.RevealAnimator; |
ztenghui | 62f30e0 | 2014-06-05 09:55:04 -0700 | [diff] [blame] | 21 | |
| 22 | /** |
| 23 | * Defines common utilities for working with View's animations. |
| 24 | * |
| 25 | */ |
ztenghui | 1c2ebed | 2014-06-12 13:35:38 -0700 | [diff] [blame] | 26 | public final class ViewAnimationUtils { |
ztenghui | 62f30e0 | 2014-06-05 09:55:04 -0700 | [diff] [blame] | 27 | private ViewAnimationUtils() {} |
| 28 | /** |
Chet Haase | 4c902fa | 2014-08-21 18:55:38 -0700 | [diff] [blame] | 29 | * Returns an Animator which can animate a clipping circle. |
Chris Craik | e83cbd4 | 2014-09-03 17:52:24 -0700 | [diff] [blame] | 30 | * <p> |
ztenghui | 62f30e0 | 2014-06-05 09:55:04 -0700 | [diff] [blame] | 31 | * Any shadow cast by the View will respect the circular clip from this animator. |
Chris Craik | e83cbd4 | 2014-09-03 17:52:24 -0700 | [diff] [blame] | 32 | * <p> |
| 33 | * Only a single non-rectangular clip can be applied on a View at any time. |
| 34 | * Views clipped by a circular reveal animation take priority over |
| 35 | * {@link View#setClipToOutline(boolean) View Outline clipping}. |
| 36 | * <p> |
John Reck | 291161a | 2014-07-22 07:31:09 -0700 | [diff] [blame] | 37 | * Note that the animation returned here is a one-shot animation. It cannot |
| 38 | * be re-used, and once started it cannot be paused or resumed. |
| 39 | * |
ztenghui | 62f30e0 | 2014-06-05 09:55:04 -0700 | [diff] [blame] | 40 | * @param view The View will be clipped to the animating circle. |
| 41 | * @param centerX The x coordinate of the center of the animating circle. |
| 42 | * @param centerY The y coordinate of the center of the animating circle. |
| 43 | * @param startRadius The starting radius of the animating circle. |
| 44 | * @param endRadius The ending radius of the animating circle. |
| 45 | */ |
Chris Craik | e83cbd4 | 2014-09-03 17:52:24 -0700 | [diff] [blame] | 46 | public static Animator createCircularReveal(View view, |
ztenghui | 62f30e0 | 2014-06-05 09:55:04 -0700 | [diff] [blame] | 47 | int centerX, int centerY, float startRadius, float endRadius) { |
Chris Craik | af4d04c | 2014-07-29 12:50:14 -0700 | [diff] [blame] | 48 | return new RevealAnimator(view, centerX, centerY, startRadius, endRadius); |
ztenghui | 62f30e0 | 2014-06-05 09:55:04 -0700 | [diff] [blame] | 49 | } |
| 50 | } |