1 /* 2 * Copyright (C) 2016 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 com.android.server.wm.animation; 18 19 import android.animation.KeyframeSet; 20 import android.animation.PathKeyframes; 21 import android.graphics.Path; 22 import android.graphics.PointF; 23 import android.view.animation.Animation; 24 import android.view.animation.Transformation; 25 26 /** 27 * Translate animation which follows a curved path. 28 */ 29 public class CurvedTranslateAnimation extends Animation { 30 31 private final PathKeyframes mKeyframes; 32 33 public CurvedTranslateAnimation(Path path) { 34 mKeyframes = KeyframeSet.ofPath(path); 35 } 36 37 @Override 38 protected void applyTransformation(float interpolatedTime, Transformation t) { 39 PointF location = (PointF) mKeyframes.getValue(interpolatedTime); 40 t.getMatrix().setTranslate(location.x, location.y); 41 } 42 } 43
