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 package com.android.messaging.ui; 17 18 import android.animation.ObjectAnimator; 19 import android.animation.TimeAnimator; 20 import android.animation.TimeAnimator.TimeListener; 21 import android.content.Context; 22 import android.graphics.drawable.ClipDrawable; 23 import android.graphics.drawable.Drawable; 24 import android.os.SystemClock; 25 import android.util.AttributeSet; 26 import android.view.Gravity; 27 import android.widget.ProgressBar; 28 29 /** 30 * Shows a styled progress bar that is synchronized with the playback state of an audio attachment. 31 */ 32 public class AudioPlaybackProgressBar extends ProgressBar implements PlaybackStateView { 33 private long mDurationInMillis; 34 private final TimeAnimator mUpdateAnimator; 35 private long mCumulativeTime = 0; 36 private long mCurrentPlayStartTime = 0; 37 private boolean mIncoming = false; 38 AudioPlaybackProgressBar(final Context context, final AttributeSet attrs)39 public AudioPlaybackProgressBar(final Context context, final AttributeSet attrs) { 40 super(context, attrs); 41 42 mUpdateAnimator = new TimeAnimator(); 43 mUpdateAnimator.setRepeatCount(ObjectAnimator.INFINITE); 44 mUpdateAnimator.setTimeListener(new TimeListener() { 45 @Override 46 public void onTimeUpdate(final TimeAnimator animation, final long totalTime, 47 final long deltaTime) { 48 int progress = 0; 49 if (mDurationInMillis > 0) { 50 progress = (int) (((mCumulativeTime + SystemClock.elapsedRealtime() - 51 mCurrentPlayStartTime) * 1.0f / mDurationInMillis) * 100); 52 progress = Math.max(Math.min(progress, 100), 0); 53 } 54 setProgress(progress); 55 } 56 }); 57 updateAppearance(); 58 } 59 60 /** 61 * Sets the duration of the audio that's being played, in milliseconds. 62 */ setDuration(final long durationInMillis)63 public void setDuration(final long durationInMillis) { 64 mDurationInMillis = durationInMillis; 65 } 66 67 @Override restart()68 public void restart() { 69 reset(); 70 resume(); 71 } 72 73 @Override reset()74 public void reset() { 75 stopUpdateTicks(); 76 setProgress(0); 77 mCumulativeTime = 0; 78 mCurrentPlayStartTime = 0; 79 } 80 81 @Override resume()82 public void resume() { 83 mCurrentPlayStartTime = SystemClock.elapsedRealtime(); 84 startUpdateTicks(); 85 } 86 87 @Override pause()88 public void pause() { 89 mCumulativeTime += SystemClock.elapsedRealtime() - mCurrentPlayStartTime; 90 stopUpdateTicks(); 91 } 92 startUpdateTicks()93 private void startUpdateTicks() { 94 if (!mUpdateAnimator.isStarted()) { 95 mUpdateAnimator.start(); 96 } 97 } 98 stopUpdateTicks()99 private void stopUpdateTicks() { 100 if (mUpdateAnimator.isStarted()) { 101 mUpdateAnimator.end(); 102 } 103 } 104 updateAppearance()105 private void updateAppearance() { 106 final Drawable drawable = 107 ConversationDrawables.get().getAudioProgressDrawable(mIncoming); 108 final ClipDrawable clipDrawable = new ClipDrawable(drawable, Gravity.START, 109 ClipDrawable.HORIZONTAL); 110 setProgressDrawable(clipDrawable); 111 setBackground(ConversationDrawables.get() 112 .getAudioProgressBackgroundDrawable(mIncoming)); 113 } 114 setVisualStyle(final boolean incoming)115 public void setVisualStyle(final boolean incoming) { 116 if (mIncoming != incoming) { 117 mIncoming = incoming; 118 updateAppearance(); 119 } 120 } 121 } 122