1/* 2 * Copyright (C) 2015 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 17package com.android.settingslib.widget; 18 19import android.content.Context; 20import android.graphics.drawable.AnimatedRotateDrawable; 21import android.graphics.drawable.Drawable; 22import android.util.AttributeSet; 23import android.view.View; 24import android.widget.ImageView; 25 26public class AnimatedImageView extends ImageView { 27 private AnimatedRotateDrawable mDrawable; 28 private boolean mAnimating; 29 30 public AnimatedImageView(Context context) { 31 super(context); 32 } 33 34 public AnimatedImageView(Context context, AttributeSet attrs) { 35 super(context, attrs); 36 } 37 38 private void updateDrawable() { 39 if (isShown() && mDrawable != null) { 40 mDrawable.stop(); 41 } 42 final Drawable drawable = getDrawable(); 43 if (drawable instanceof AnimatedRotateDrawable) { 44 mDrawable = (AnimatedRotateDrawable) drawable; 45 // TODO: define in drawable xml once we have public attrs. 46 mDrawable.setFramesCount(56); 47 mDrawable.setFramesDuration(32); 48 if (isShown() && mAnimating) { 49 mDrawable.start(); 50 } 51 } else { 52 mDrawable = null; 53 } 54 } 55 56 private void updateAnimating() { 57 if (mDrawable != null) { 58 if (isShown() && mAnimating) { 59 mDrawable.start(); 60 } else { 61 mDrawable.stop(); 62 } 63 } 64 } 65 66 @Override 67 public void setImageDrawable(Drawable drawable) { 68 super.setImageDrawable(drawable); 69 updateDrawable(); 70 } 71 72 @Override 73 public void setImageResource(int resid) { 74 super.setImageResource(resid); 75 updateDrawable(); 76 } 77 78 @Override 79 public void onAttachedToWindow() { 80 super.onAttachedToWindow(); 81 updateAnimating(); 82 } 83 84 @Override 85 public void onDetachedFromWindow() { 86 super.onDetachedFromWindow(); 87 updateAnimating(); 88 } 89 90 public void setAnimating(boolean animating) { 91 mAnimating = animating; 92 updateAnimating(); 93 } 94 95 @Override 96 protected void onVisibilityChanged(View changedView, int vis) { 97 super.onVisibilityChanged(changedView, vis); 98 updateAnimating(); 99 } 100} 101