我正在构建一个应用，用户点击按钮即可全屏显示视频。最初，视频附加到ViewPager内的视图。为了能够全屏显示，我将其与父项分离，并将其重新连接到根视图。这种方法很好，除非在播放时将视频切换到全屏。当我分离播放VideoView时，它只是停止，我需要重新启动它。这是不可接受的，因为视频在恢复之前开始缓冲。这里是完成分离的代码部分：
final ViewGroup parent = (ViewGroup) findViewById(R.id.parent);
final ViewGroup root = (ViewGroup) findViewById(R.id.root);
Button b = (Button) findViewById(R.id.button);
b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
parent.removeView(mVideoView);
LayoutParams lp = new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
root.addView(mVideoView, lp);
}
});
根据设备的不同，我有不同的日志错误。可能是因为实际的视频播放器是由制造商提供的，而不是Android SDK。以下是Nexus 7的错误日志：
10-30 20:26:18.618: D/NvOsDebugPrintf(124): NvMMDecTVMRDestroyParser Begin
10-30 20:26:18.618: D/NvOsDebugPrintf(124): --------- Closing TVMR Frame Delivery Thread -------------
10-30 20:26:18.678: D/NvOsDebugPrintf(124): ------- NvAvpClose -------
10-30 20:26:18.678: D/NvOsDebugPrintf(124): NvMMDecTVMRDestroyParser Done
10-30 20:26:18.678: D/NvOsDebugPrintf(124): NvMMLiteTVMRDecPrivateClose Done
我无法在不停止视频的情况下分离视频。我尝试使用SurfaceView或TextureView但没有成功。
我也尝试过寻找第三方视频播放器。我找到了一个商业用途（http://www.vitamio.org/），我出于商业原因无法真正使用它。我找到了一个开源的，去年没有更新过（https://code.google.com/p/dolphin-player/）。
我目前只在平板电脑上定位Android 4.2或更高版本。
答案 0 :(得分：10)
使用TextureView可以实现此效果。
基本上你要做的是创建一个MediaPlayer实例，prepare()它并开始（）它，然后你可以在任何MediaPlayer.setSurface()上使用TextureView方法来改变表面视频正在播放MediaPlayer对象状态没有任何更改，如android setSurface()方法的文档中所述：
This method can be called in any state and calling it does not change the object state.
请注意，此实现是为了演示，您应该使用mediaplayer.prepareAsync()并等待onPreparedListener()的回调，您还需要为第二个{{1}设置正确的尺寸根据您的视频大小，处理方向更改，当然还可以在需要时正确处理异常。
activity_main.xml中：
TextureViewMainActivity.java
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="300dp"
android:layout_height="300dp"
android:layout_gravity="center"
android:background="#ff0000" />
<Button
android:id="@+id/btn"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="bottom|center_horizontal"
android:text="Switch to second surface" />
<TextureView
android:id="@+id/tv_full"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
答案 1 :(得分：1)
我不知道视频播放器如何工作的细节，但我的预感是你必须：
Override onSaveInstanceState to save the place in the video (maybe a timestamp?)
Override onRestoreInstanceState to reload the video and seek to the point saved in step 1
答案 2 :(得分：0)
我没试过这个，但希望它可以帮到你，
final ViewGroup parent = (ViewGroup) findViewById(R.id.parent);
final ViewGroup root = (ViewGroup) findViewById(R.id.root);//assuming this full screen
Button b = (Button) findViewById(R.id.button);
b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// parent.removeView(mVideoView);
LayoutParams parentParam = parent.getLayoutParams();
parentParam.height = root.getLayoutParams().height;
parentParam.width = root.getLayoutParams().width;
parent.setLayoutParams(parentParam);
LayoutParams lp = new FrameLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
root.addView(mVideoView, lp);
}
});
感谢。
答案 3 :(得分：0)
使用textureview进行此修改：
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
if (mediaPlayer != null) {
mediaPlayer.setSurface(new Surface (surfaceTexture));}
}
更新：完整代码： player2.java：
public class player2 extends TextureView
implements MediaPlayerControl {
private String TAG = "TextureVideoView";
// settable by the client
private Uri mUri;
private Map<String, String> mHeaders;
// all possible internal states
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;
private static final int STATE_PLAYBACK_COMPLETED = 5;
private static int mCurrentState;
private static int mTargetState;
// All the stuff we need for playing and showing a video
static public SurfaceTexture sf;
static public MediaPlayer mMediaPlayer;
private int mAudioSession;
private int mVideoWidth;
private int mVideoHeight;
private int mSurfaceWidth;
private int mSurfaceHeight;
private MediaController mMediaController;
private OnCompletionListener mOnCompletionListener;
private MediaPlayer.OnPreparedListener mOnPreparedListener;
private int mCurrentBufferPercentage;
private OnErrorListener mOnErrorListener;
private OnInfoListener mOnInfoListener;
private int mSeekWhenPrepared; // recording the seek position while preparing
private static boolean mCanPause;
private static boolean mCanSeekBack;
private static boolean mCanSeekForward;
private Context mContext;
public player2(Context context) {
super(context);
initVideoView();
}
public player2(Context context, AttributeSet attrs) {
this(context, attrs, 0);
initVideoView();
}
public player2(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initVideoView();
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//Log.i("@@@@", "onMeasure(" + MeasureSpec.toString(widthMeasureSpec) + ", "
// + MeasureSpec.toString(heightMeasureSpec) + ")");
int width = getDefaultSize(mVideoWidth, widthMeasureSpec);
int height = getDefaultSize(mVideoHeight, heightMeasureSpec);
if (mVideoWidth > 0 && mVideoHeight > 0) {
int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);
if (widthSpecMode == MeasureSpec.EXACTLY && heightSpecMode == MeasureSpec.EXACTLY) {
// the size is fixed
width = widthSpecSize;
height = heightSpecSize;
// for compatibility, we adjust size based on aspect ratio
if ( mVideoWidth * height < width * mVideoHeight ) {
//Log.i("@@@", "image too wide, correcting");
width = height * mVideoWidth / mVideoHeight;
} else if ( mVideoWidth * height > width * mVideoHeight ) {
//Log.i("@@@", "image too tall, correcting");
height = width * mVideoHeight / mVideoWidth;
}
} else if (widthSpecMode == MeasureSpec.EXACTLY) {
// only the width is fixed, adjust the height to match aspect ratio if possible
width = widthSpecSize;
height = width * mVideoHeight / mVideoWidth;
if (heightSpecMode == MeasureSpec.AT_MOST && height > heightSpecSize) {
// couldn't match aspect ratio within the constraints
height = heightSpecSize;
}
} else if (heightSpecMode == MeasureSpec.EXACTLY) {
// only the height is fixed, adjust the width to match aspect ratio if possible
height = heightSpecSize;
width = height * mVideoWidth / mVideoHeight;
if (widthSpecMode == MeasureSpec.AT_MOST && width > widthSpecSize) {
// couldn't match aspect ratio within the constraints
width = widthSpecSize;
}
} else {
// neither the width nor the height are fixed, try to use actual video size
width = mVideoWidth;
height = mVideoHeight;
if (heightSpecMode == MeasureSpec.AT_MOST && height > heightSpecSize) {
// too tall, decrease both width and height
height = heightSpecSize;
width = height * mVideoWidth / mVideoHeight;
}
if (widthSpecMode == MeasureSpec.AT_MOST && width > widthSpecSize) {
// too wide, decrease both width and height
width = widthSpecSize;
height = width * mVideoHeight / mVideoWidth;
}
}
} else {
// no size yet, just adopt the given spec sizes
}
setMeasuredDimension(width, height);
}
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
super.onInitializeAccessibilityEvent(event);
event.setClassName(player2.class.getName());
}
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setClassName(player2.class.getName());
}
public int resolveAdjustedSize(int desiredSize, int measureSpec) {
return getDefaultSize(desiredSize, measureSpec);
}
private void initVideoView() {
mContext = getContext();
mVideoWidth = 0;
mVideoHeight = 0;
setSurfaceTextureListener(mSurfaceTextureListener);
setFocusable(true);
setFocusableInTouchMode(true);
requestFocus();
mPendingSubtitleTracks = new Vector<Pair<InputStream, MediaFormat>>();
if (mMediaPlayer==null) {
mCurrentState = STATE_IDLE;
mTargetState = STATE_IDLE;}
}
public void setVideoPath(String path) {
setVideoURI(Uri.parse(path));
}
public void setVideoURI(Uri uri) {
setVideoURI(uri, null);
}
/**
* @hide
*/
private void setVideoURI(Uri uri, Map<String, String> headers) {
mUri = uri;
mHeaders = headers;
mSeekWhenPrepared = 0;
requestLayout();
invalidate();
}
private Vector<Pair<InputStream, MediaFormat>> mPendingSubtitleTracks;
public void stopPlayback() {
if (mMediaPlayer != null) {
mMediaPlayer.stop();
mMediaPlayer.release();
mMediaPlayer = null;
mCurrentState = STATE_IDLE;
mTargetState = STATE_IDLE;
}
}
private void setListeners() {
mMediaPlayer.setOnPreparedListener(mPreparedListener);
mMediaPlayer.setOnVideoSizeChangedListener(mSizeChangedListener);
mMediaPlayer.setOnCompletionListener(mCompletionListener);
mMediaPlayer.setOnErrorListener(mErrorListener);
mMediaPlayer.setOnInfoListener(mInfoListener);
mMediaPlayer.setOnBufferingUpdateListener(mBufferingUpdateListener);
mCurrentBufferPercentage = 0;
mMediaPlayer.setScreenOnWhilePlaying(true);
}
private void openVideo() {
if (mUri == null || sf == null) {
// not ready for playback just yet, will try again later
return;
}
// Tell the music playback service to pause
// TODO: these constants need to be published somewhere in the framework.
/* Intent i = new Intent("com.android.music.musicservicecommand");
i.putExtra("command", "pause");
mContext.sendBroadcast(i);*/
if (mMediaPlayer==null) {
try {
mMediaPlayer = new MediaPlayer();
if (mAudioSession != 0) {
mMediaPlayer.setAudioSessionId(mAudioSession);
} else {
mAudioSession = mMediaPlayer.getAudioSessionId();
}
setListeners();
mMediaPlayer.setSurface(new Surface (sf));
mMediaPlayer.setDataSource(mContext, mUri, mHeaders);
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.prepareAsync();
// we don't set the target state here either, but preserve the
// target state that was there before.
mCurrentState = STATE_PREPARING;
attachMediaController();
} catch (IOException ex) {
Log.w(TAG, "Unable to open content: " + mUri, ex);
mCurrentState = STATE_ERROR;
mTargetState = STATE_ERROR;
mErrorListener.onError(mMediaPlayer, MediaPlayer.MEDIA_ERROR_UNKNOWN, 0);
return;
} catch (IllegalArgumentException ex) {
Log.w(TAG, "Unable to open content: " + mUri, ex);
mCurrentState = STATE_ERROR;
mTargetState = STATE_ERROR;
mErrorListener.onError(mMediaPlayer, MediaPlayer.MEDIA_ERROR_UNKNOWN, 0);
return;
} finally {
mPendingSubtitleTracks.clear();
}} else {
setListeners();
}
}
public void setMediaController(MediaController controller) {
if (mMediaController != null) {
mMediaController.hide();
}
mMediaController = controller;
attachMediaController();
}
private void attachMediaController() {
if (mMediaPlayer != null && mMediaController != null) {
mMediaController.setMediaPlayer(this);
View anchorView = this.getParent() instanceof View ?
(View)this.getParent() : this;
mMediaController.setAnchorView(anchorView);
mMediaController.setEnabled(isInPlaybackState());
}
}
MediaPlayer.OnVideoSizeChangedListener mSizeChangedListener =
new MediaPlayer.OnVideoSizeChangedListener() {
public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
mVideoWidth = mp.getVideoWidth();
mVideoHeight = mp.getVideoHeight();
if (mVideoWidth != 0 && mVideoHeight != 0) {
getSurfaceTexture().setDefaultBufferSize(mVideoWidth, mVideoHeight);
requestLayout();
}
}
};
MediaPlayer.OnPreparedListener mPreparedListener = new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
mCurrentState = STATE_PREPARED;
mCanPause = mCanSeekBack = mCanSeekForward = true;
if (mOnPreparedListener != null) {
mOnPreparedListener.onPrepared(mMediaPlayer);
}
if (mMediaController != null) {
mMediaController.setEnabled(true);
}
mVideoWidth = mp.getVideoWidth();
mVideoHeight = mp.getVideoHeight();
int seekToPosition = mSeekWhenPrepared; // mSeekWhenPrepared may be changed after seekTo() call
if (seekToPosition != 0) {
seekTo(seekToPosition);
}
if (mVideoWidth != 0 && mVideoHeight != 0) {
//Log.i("@@@@", "video size: " + mVideoWidth +"/"+ mVideoHeight);
getSurfaceTexture().setDefaultBufferSize(mVideoWidth, mVideoHeight);
requestLayout();
if (mSurfaceWidth == mVideoWidth && mSurfaceHeight == mVideoHeight) {
// We didn't actually change the size (it was already at the size
// we need), so we won't get a "surface changed" callback, so
// start the video here instead of in the callback.
if (mTargetState == STATE_PLAYING) {
start();
if (mMediaController != null) {
mMediaController.show();
}
} else if (!isPlaying() &&
(seekToPosition != 0 || getCurrentPosition() > 0)) {
if (mMediaController != null) {
// Show the media controls when we're paused into a video and make 'em stick.
mMediaController.show(0);
}
}
}
} else {
// We don't know the video size yet, but should start anyway.
// The video size might be reported to us later.
if (mTargetState == STATE_PLAYING) {
start();
}
}
}
};
private MediaPlayer.OnCompletionListener mCompletionListener =
new MediaPlayer.OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
if (mCurrentState == STATE_PLAYBACK_COMPLETED) {
return;
}
mCurrentState = STATE_PLAYBACK_COMPLETED;
mTargetState = STATE_PLAYBACK_COMPLETED;
if (mMediaController != null) {
mMediaController.hide();
}
if (mOnCompletionListener != null) {
mOnCompletionListener.onCompletion(mMediaPlayer);
}
}
};
private MediaPlayer.OnInfoListener mInfoListener =
new MediaPlayer.OnInfoListener() {
public boolean onInfo(MediaPlayer mp, int arg1, int arg2) {
if (mOnInfoListener != null) {
mOnInfoListener.onInfo(mp, arg1, arg2);
}
return true;
}
};
private MediaPlayer.OnErrorListener mErrorListener =
new MediaPlayer.OnErrorListener() {
public boolean onError(MediaPlayer mp, int framework_err, int impl_err) {
Log.d(TAG, "Error: " + framework_err + "," + impl_err);
mCurrentState = STATE_ERROR;
mTargetState = STATE_ERROR;
if (mMediaController != null) {
mMediaController.hide();
}
/* If an error handler has been supplied, use it and finish. */
if (mOnErrorListener != null) {
if (mOnErrorListener.onError(mMediaPlayer, framework_err, impl_err)) {
return true;
}
}
if (getWindowToken() != null) {
// Resources r = mContext.getResources();
int messageId;
if (framework_err == MediaPlayer.MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK) {
messageId = R.string.VideoView_error_text_invalid_progressive_playback;
} else {
messageId = R.string.VideoView_error_text_unknown;
}
new AlertDialog.Builder(mContext)
.setMessage(messageId)
.setPositiveButton(R.string.VideoView_error_button,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* If we get here, there is no onError listener, so
* at least inform them that the video is over.
*/
if (mOnCompletionListener != null) {
mOnCompletionListener.onCompletion(mMediaPlayer);
}
}
})
.setCancelable(false)
.show();
}
return true;
}
};
private MediaPlayer.OnBufferingUpdateListener mBufferingUpdateListener =
new MediaPlayer.OnBufferingUpdateListener() {
public void onBufferingUpdate(MediaPlayer mp, int percent) {
mCurrentBufferPercentage = percent;
}
};
/**
* Register a callback to be invoked when the media file
* is loaded and ready to go.
*
* @param l The callback that will be run
*/
public void setOnPreparedListener(MediaPlayer.OnPreparedListener l)
{
mOnPreparedListener = l;
}
/**
* Register a callback to be invoked when the end of a media file
* has been reached during playback.
*
* @param l The callback that will be run
*/
public void setOnCompletionListener(OnCompletionListener l)
{
mOnCompletionListener = l;
}
/**
* Register a callback to be invoked when an error occurs
* during playback or setup. If no listener is specified,
* or if the listener returned false, TextureVideoView will inform
* the user of any errors.
*
* @param l The callback that will be run
*/
public void setOnErrorListener(OnErrorListener l)
{
mOnErrorListener = l;
}
/**
* Register a callback to be invoked when an informational event
* occurs during playback or setup.
*
* @param l The callback that will be run
*/
public void setOnInfoListener(OnInfoListener l) {
mOnInfoListener = l;
}
TextureView.SurfaceTextureListener mSurfaceTextureListener = new SurfaceTextureListener()
{
@Override
public void onSurfaceTextureSizeChanged(final SurfaceTexture surface, final int width, final int height) {
if (mMediaPlayer!=null) {
mVideoWidth = mMediaPlayer.getVideoWidth();
mVideoHeight = mMediaPlayer.getVideoHeight();
if (mVideoWidth != 0 && mVideoHeight != 0) {
surface.setDefaultBufferSize(mVideoWidth, mVideoHeight);
requestLayout();
}}
}
@Override
public void onSurfaceTextureAvailable(final SurfaceTexture surface, final int width, final int height) {
sf=surface;
mSurfaceWidth = width;
mSurfaceHeight = height;
if (mMediaPlayer!=null) { mMediaPlayer.setSurface(new Surface (surface));
}
openVideo();
}
@Override
public boolean onSurfaceTextureDestroyed(final SurfaceTexture surface) {
return false;
}
@Override
public void onSurfaceTextureUpdated(final SurfaceTexture surface) {}
};
/*
* release the media player in any state
*/
private void release(boolean cleartargetstate) {
if (mMediaPlayer != null) {
mMediaPlayer.reset();
mMediaPlayer.release();
mMediaPlayer = null;
mPendingSubtitleTracks.clear();
mCurrentState = STATE_IDLE;
if (cleartargetstate) {
mTargetState = STATE_IDLE;
}
}
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
if (isInPlaybackState() && mMediaController != null) {
toggleMediaControlsVisiblity();
}
return false;
}
@Override
public boolean onTrackballEvent(MotionEvent ev) {
if (isInPlaybackState() && mMediaController != null) {
toggleMediaControlsVisiblity();
}
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
boolean isKeyCodeSupported = keyCode != KeyEvent.KEYCODE_BACK &&
keyCode != KeyEvent.KEYCODE_VOLUME_UP &&
keyCode != KeyEvent.KEYCODE_VOLUME_DOWN &&
keyCode != KeyEvent.KEYCODE_VOLUME_MUTE &&
keyCode != KeyEvent.KEYCODE_MENU &&
keyCode != KeyEvent.KEYCODE_CALL &&
keyCode != KeyEvent.KEYCODE_ENDCALL;
if (isInPlaybackState() && isKeyCodeSupported && mMediaController != null) {
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK ||
keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
} else {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (!mMediaPlayer.isPlaying()) {
start();
mMediaController.hide();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (mMediaPlayer.isPlaying()) {
pause();
mMediaController.show();
}
return true;
} else {
toggleMediaControlsVisiblity();
}
}
return super.onKeyDown(keyCode, event);
}
private void toggleMediaControlsVisiblity() {
if (mMediaController.isShowing()) {
mMediaController.hide();
} else {
mMediaController.show();
}
}
@Override
public void start() {
if (isInPlaybackState()) {
mMediaPlayer.start();
mCurrentState = STATE_PLAYING;
}
mTargetState = STATE_PLAYING;
}
@Override
public void pause() {
if (isInPlaybackState()) {
if (mMediaPlayer.isPlaying()) {
mMediaPlayer.pause();
mCurrentState = STATE_PAUSED;
}
}
mTargetState = STATE_PAUSED;
}
public void suspend() {
release(false);
}
public void resume() {
openVideo();
}
@Override
public int getDuration() {
if (isInPlaybackState()) {
return mMediaPlayer.getDuration();
}
return -1;
}
@Override
public int getCurrentPosition() {
if (isInPlaybackState()) {
return mMediaPlayer.getCurrentPosition();
}
return 0;
}
@Override
public void seekTo(int msec) {
if (isInPlaybackState()) {
mMediaPlayer.seekTo(msec);
mSeekWhenPrepared = 0;
} else {
mSeekWhenPrepared = msec;
}
}
@Override
public boolean isPlaying() {
return isInPlaybackState() && mMediaPlayer.isPlaying();
}
@Override
public int getBufferPercentage() {
if (mMediaPlayer != null) {
return mCurrentBufferPercentage;
}
return 0;
}
private boolean isInPlaybackState() {
return (mMediaPlayer != null &&
mCurrentState != STATE_ERROR &&
mCurrentState != STATE_IDLE &&
mCurrentState != STATE_PREPARING);
}
@Override
public boolean canPause() {
return mCanPause;
}
@Override
public boolean canSeekBackward() {
return mCanSeekBack;
}
@Override
public boolean canSeekForward() {
return mCanSeekForward;
}
public int getAudioSessionId() {
if (mAudioSession == 0) {
MediaPlayer foo = new MediaPlayer();
mAudioSession = foo.getAudioSessionId();
foo.release();
}
return mAudioSession;
}
}
MainActivity的一些代码：
public class MainActivity extends Activity {
static View frame1;
static player2 textureView;
static boolean pause=false;
@Override
protected void onCreate(Bundle savedInstanceState) {
...
}
@Override
protected void onDestroy() {
pause=false;
super.onDestroy();
}
@Override
public void onPause() {
pause=true;
super.onPause();
}
@Override
public void onResume() {
if ((player2.sf!=null)&&(pause==true)&&(textureView.getSurfaceTexture()==null)) {
textureView.setSurfaceTexture(player2.sf);}
super.onResume();
}
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
frame1=rootView.findViewById(R.id.frame1);
textureView = (player2)rootView.findViewById(R.id.textureView1);
textureView.setVideoPath("http://master255.org/res/Клипы/S/SKRILLEX/Skrillex - Summit (feat. Ellie Goulding) [Video by Pilerats].mp4");
textureView.setMediaController(new mediac(getActivity(), frame1));
if (player2.sf != null) {
if ((pause==false)&&(textureView.getSurfaceTexture()==null)) {
textureView.setSurfaceTexture(player2.sf);}
}
textureView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(final MediaPlayer mp) {
textureView.start();
}
});
return rootView;
}
public class mediac extends MediaController
{
public mediac(Context context, View anchor)
{
super(context);
super.setAnchorView(anchor);
}
@Override
public void setAnchorView(View view)
{}
}
}
}
答案 4 :(得分：0)
VideoView扩展了SurfaceView，并且依赖于SurfaceView的生命周期。当surfaceView被破坏时，媒体播放器将被释放，并且状态不会保留。结果，当您分离VideoView时，表面会被破坏，媒体播放器将被释放。