package com.yixia.camera.demo.ui.widget;
import java.io.IOException;
import com.yixia.camera.demo.log.Logger;
import android.content.Context;
import android.graphics.SurfaceTexture;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.view.Surface;
import android.view.TextureView;
public class VideoView extends TextureView implements android.view.TextureView.SurfaceTextureListener {
private MediaPlayer.OnCompletionListener mOnCompletionListener;
private MediaPlayer.OnPreparedListener mOnPreparedListener;
private MediaPlayer.OnErrorListener mOnErrorListener;
private MediaPlayer.OnSeekCompleteListener mOnSeekCompleteListener;
private OnPlayStateListener mOnPlayStateListener;
private MediaPlayer mMediaPlayer = null;
private SurfaceTexture mSurfaceHolder = null;
private static final int STATE_ERROR = -1;
private static final int STATE_IDLE = 0;
private static final int STATE_PREPARING = 1;
private static final int STATE_PREPARED = 2;
private static final int STATE_PLAYING = 3;
private static final int STATE_PAUSED = 4;
/**
* PlaybackCompleted状态：文件正常播放完毕，而又没有设置循环播放的话就进入该状态，
* 并会触发OnCompletionListener的onCompletion
* ()方法。此时可以调用start()方法重新从头播放文件，也可以stop()停止MediaPlayer，或者也可以seekTo()来重新定位播放位置。
*/
private static final int STATE_PLAYBACK_COMPLETED = 5;
/** Released/End状态：通过release()方法可以进入End状态 */
private static final int STATE_RELEASED = 5;
private int mCurrentState = STATE_IDLE;
private int mTargetState = STATE_IDLE;
private int mVideoWidth;
private int mVideoHeight;
// private int mSurfaceWidth;
// private int mSurfaceHeight;
private float mVolumn = -1;
private int mDuration;
private Uri mUri;
// SurfaceTextureAvailable
public VideoView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initVideoView();
}
public VideoView(Context context) {
super(context);
initVideoView();
}
public VideoView(Context context, AttributeSet attrs) {
super(context, attrs);
initVideoView();
}
protected void initVideoView() {
try {
AudioManager mAudioManager = (AudioManager) getContext().getSystemService(Context.AUDIO_SERVICE);
mVolumn = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
} catch (UnsupportedOperationException e) {
}
// mTryCount = 0;
mVideoWidth = 0;
mVideoHeight = 0;
setSurfaceTextureListener(this);
// setFocusable(true);
// setFocusableInTouchMode(true);
// requestFocus();
mCurrentState = STATE_IDLE;
mTargetState = STATE_IDLE;
}
public void setOnPreparedListener(MediaPlayer.OnPreparedListener l) {
mOnPreparedListener = l;
}
public void setOnErrorListener(MediaPlayer.OnErrorListener l) {
mOnErrorListener = l;
}
public void setOnPlayStateListener(OnPlayStateListener l) {
mOnPlayStateListener = l;
}
public void setOnSeekCompleteListener(MediaPlayer.OnSeekCompleteListener l) {
mOnSeekCompleteListener = l;
}
public static interface OnPlayStateListener {
public void onStateChanged(boolean isPlaying);
}
public void setOnCompletionListener(MediaPlayer.OnCompletionListener l) {
mOnCompletionListener = l;
}
public void setVideoPath(String path) {
// if (StringUtils.isNotEmpty(path) && MediaUtils.isNative(path)) {
mTargetState = STATE_PREPARED;
openVideo(Uri.parse(path));
// }
}
public int getVideoWidth() {
return mVideoWidth;
}
public int getVideoHeight() {
return mVideoHeight;
}
public void reOpen() {
mTargetState = STATE_PREPARED;
openVideo(mUri);
}
public int getDuration() {
return mDuration;
}
/** 重试 */
private void tryAgain(Exception e) {
mCurrentState = STATE_ERROR;
Logger.e(e);
openVideo(mUri);
}
public void start() {
mTargetState = STATE_PLAYING;
//可用状态{Prepared, Started, Paused, PlaybackCompleted}
if (mMediaPlayer != null && (mCurrentState == STATE_PREPARED || mCurrentState == STATE_PAUSED || mCurrentState == STATE_PLAYING || mCurrentState == STATE_PLAYBACK_COMPLETED)) {
try {
if (!isPlaying())
mMediaPlayer.start();
mCurrentState = STATE_PLAYING;
if (mOnPlayStateListener != null)
mOnPlayStateListener.onStateChanged(true);
} catch (IllegalStateException e) {
tryAgain(e);
} catch (Exception e) {
tryAgain(e);
}
}
}
public void pause() {
mTargetState = STATE_PAUSED;
//可用状态{Started, Paused}
if (mMediaPlayer != null && (mCurrentState == STATE_PLAYING || mCurrentState == STATE_PAUSED)) {
try {
mMediaPlayer.pause();
mCurrentState = STATE_PAUSED;
if (mOnPlayStateListener != null)
mOnPlayStateListener.onStateChanged(false);
} catch (IllegalStateException e) {
tryAgain(e);
} catch (Exception e) {
tryAgain(e);
}
}
}
public void setVolume(float volume) {
//可用状态{Idle, Initialized, Stopped, Prepared, Started, Paused, PlaybackCompleted}
if (mMediaPlayer != null && (mCurrentState == STATE_PREPARED || mCurrentState == STATE_PLAYING || mCurrentState == STATE_PAUSED || mCurrentState == STATE_PLAYBACK_COMPLETED)) {
try {
mMediaPlayer.setVolume(volume, volume);
} catch (Exception e) {
Logger.e(e);
}
}
}
public void setLooping(boolean looping) {
//可用状态{Idle, Initialized, Stopped, Prepared, Started, Paused, PlaybackCompleted}
if (mMediaPlayer != null && (mCurrentState == STATE_PREPARED || mCurrentState == STATE_PLAYING || mCurrentState == STATE_PAUSED || mCurrentState == STATE_PLAYBACK_COMPLETED)) {
try {
mMediaPlayer.setLooping(looping);
} catch (Exception e) {
Logger.e(e);
}
}
}
public void seekTo(int msec) {
//可用状态{Prepared, Started, Paused, PlaybackCompleted}
if (mMediaPlayer != null && (mCurrentState == STATE_PREPARED || mCurrentState == STATE_PLAYING || mCurrentState == STATE_PAUSED || mCurrentState == STATE_PLAYBACK_COMPLETED)) {
try {
if (msec < 0)
msec = 0;
mMediaPlayer.seekTo(msec);
} catch (IllegalStateException e) {
Logger.e(e);
} catch (Exception e) {
Logger.e(e);
}
}
}
/** 获取当前播放位置 */
public int getCurrentPosition() {
int position = 0;
//可用状态{Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted}
if (mMediaPlayer != null) {
switch (mCurrentState) {
case STATE_PLAYBACK_COMPLETED:
position = getDuration();
break;
case STATE_PLAYING:
case STATE_PAUSED:
try {
position = mMediaPlayer.getCurrentPosition();
} catch (IllegalStateException e) {
Logger.e(e);
} catch (Exception e) {
Logger.e(e);
}
break;
}
}
return position;
}
public boolean isPlaying() {
//可用状态{Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted}
if (mMediaPlayer != null && mCurrentState == STATE_PLAYING) {
try {
return mMediaPlayer.isPlaying();
} catch (IllegalStateException e) {
Logger.e(e);
} catch (Exception e) {
Logger.e(e);
}
}
return false;
}
/** 调用release方法以后MediaPlayer无法再恢复使用 */
public void release() {
mTargetState = STATE_RELEASED;
mCurrentState = STATE_RELEASED;
if (mMediaPlayer != null) {
try {
mMediaPlayer.release();
} catch (IllegalStateException e) {
Logger.e(e);
} catch (Exception e) {
Logger.e(e);
}
mMediaPlayer = null;
}
}
public void openVideo(Uri uri) {
if (uri == null || mSurfaceHolder == null || getContext() == null) {
// not ready for playback just yet, will try again later
if (mSurfaceHolder == null && uri != null) {
mUri = uri;
}
return;
}
Logger.e("[LocalVideoView]openVideo...");
mUri = uri;
mDuration = 0;
//Idle 状态：当使用new()方法创建一个MediaPlayer对象或者调用了其reset()方法时，该MediaPlayer对象处于idle状态。
//End 状态：通过release()方法可以进入End状态，只要MediaPlayer对象不再被使用，就应当尽快将其通过release()方法释放掉
//Initialized 状态：这个状态比较简单，MediaPlayer调用setDataSource()方法就进入Initialized状态，表示此时要播放的文件已经设置好了。
//Prepared 状态：初始化完成之后还需要通过调用prepare()或prepareAsync()方法，这两个方法一个是同步的一个是异步的，只有进入Prepared状态，才表明MediaPlayer到目前为止都没有错误，可以进行文件播放。
Exception exception = null;
try {
if (mMediaPlayer == null) {
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setOnPreparedListener(mPreparedListener);
mMediaPlayer.setOnCompletionListener(mCompletionListener);
mMediaPlayer.setOnErrorListener(mErrorListener);
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setOnSeekCompleteListener(mSeekCompleteListener);
// mMediaPlayer.setScreenOnWhilePlaying(true);
mMediaPlayer.setVolume(mVolumn, mVolumn);
mMediaPlayer.setSurface(new Surface(mSurfaceHolder));
} else {
mMediaPlayer.reset();
}
mMediaPlayer.setDataSource(getContext(), uri);
// if (mLooping)
// mMediaPlayer.setLooping(true);//循环播放
mMediaPlayer.prepareAsync();
// we don't set the target state here either, but preserve the
// target state that was there before.
mCurrentState = STATE_PREPARING;
} catch (IOException ex) {
exception = ex;
} catch (IllegalArgumentException ex) {
exception = ex;
} catch (Exception ex) {
exception = ex;
}
if (exception != null) {
Logger.e(exception);
mCurrentState = STATE_ERROR;
if (mErrorListener != null)
mErrorListener.onError(mMediaPlayer, MediaPlayer.MEDIA_ERROR_UNKNOWN, 0);
}
}
private MediaPlayer.OnCompletionListener mCompletionListener = new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(android.media.MediaPlayer mp) {
mCurrentState = STATE_PLAYBACK_COMPLETED;
// mTargetState = STATE_PLAYBACK_COMPLETED;
if (mOnCompletionListener != null)
mOnCompletionListener.onCompletion(mp);
}
};
MediaPlayer.OnPreparedListener mPreparedListener = new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(android.media.MediaPlayer mp) {
//必须是正常状态
if (mCurrentState == STATE_PREPARING) {
mCurrentState = STATE_PREPARED;
try {
mDuration = mp.getDuration();
} catch (IllegalStateException e) {
Logger.e(e);
}
try {
mVideoWidth = mp.getVideoWidth();
mVideoHeight = mp.getVideoHeight();
} catch (IllegalStateException e) {
Logger.e(e);
}
switch (mTargetState) {
case STATE_PREPARED:
if (mOnPreparedListener != null)
mOnPreparedListener.onPrepared(mMediaPlayer);
break;
case STATE_PLAYING:
start();
break;
}
}
}
};
private MediaPlayer.OnSeekCompleteListener mSeekCompleteListener = new MediaPlayer.OnSeekCompleteListener() {
@Override
public void onSeekComplete(MediaPlayer mp) {
if (mOnSeekCompleteListener != null)
mOnSeekCompleteListener.onSeekComplete(mp);
}
};
private MediaPlayer.OnErrorListener mErrorListener = new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(android.media.MediaPlayer mp, int framework_err, int impl_err) {
Logger.e("[VideoView]Error:" + framework_err + "," + impl_err);
mCurrentState = STATE_ERROR;
// mTargetState = STATE_ERROR;
//FIX，可以考虑出错以后重新开始
if (mOnErrorListener != null)
mOnErrorListener.onError(mp, framework_err, impl_err);
return true;
}
};
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
boolean needReOpen = (mSurfaceHolder == null);
mSurfaceHolder = surface;
if (needReOpen) {
reOpen();
}
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
//画布失效
mSurfaceHolder = null;
release();
return true;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surface) {
}
/** 是否可用 */
public boolean isPrepared() {
//|| mCurrentState == STATE_PAUSED || mCurrentState == STATE_PLAYING
return mMediaPlayer != null && (mCurrentState == STATE_PREPARED);
}
// /** 是否能即可播放 */
// public boolean canStart() {
// return mMediaPlayer != null && (mCurrentState == STATE_PREPARED || mCurrentState == STATE_PAUSED);
// }
private static final int HANDLER_MESSAGE_PARSE = 0;
private static final int HANDLER_MESSAGE_LOOP = 1;
private Handler mVideoHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case HANDLER_MESSAGE_PARSE:
pause();
break;
case HANDLER_MESSAGE_LOOP:
if (isPlaying()) {
seekTo(msg.arg1);
sendMessageDelayed(mVideoHandler.obtainMessage(HANDLER_MESSAGE_LOOP, msg.arg1, msg.arg2), msg.arg2);
}
break;
default:
break;
}
super.handleMessage(msg);
}
};
/** 定时暂停 */
public void pauseDelayed(int delayMillis) {
if (mVideoHandler.hasMessages(HANDLER_MESSAGE_PARSE))
mVideoHandler.removeMessages(HANDLER_MESSAGE_PARSE);
mVideoHandler.sendEmptyMessageDelayed(HANDLER_MESSAGE_PARSE, delayMillis);
}
/** 暂停并且清除定时任务 */
public void pauseClearDelayed() {
pause();
if (mVideoHandler.hasMessages(HANDLER_MESSAGE_PARSE))
mVideoHandler.removeMessages(HANDLER_MESSAGE_PARSE);
if (mVideoHandler.hasMessages(HANDLER_MESSAGE_LOOP))
mVideoHandler.removeMessages(HANDLER_MESSAGE_LOOP);
}
/** 区域内循环播放 */
public void loopDelayed(int startTime, int endTime) {
int delayMillis = endTime - startTime;
seekTo(startTime);
if (!isPlaying())
start();
if (mVideoHandler.hasMessages(HANDLER_MESSAGE_LOOP))
mVideoHandler.removeMessages(HANDLER_MESSAGE_LOOP);
mVideoHandler.sendMessageDelayed(mVideoHandler.obtainMessage(HANDLER_MESSAGE_LOOP, getCurrentPosition(), delayMillis), delayMillis);
}
}