我在自定义textureview中播放视频。但宽度不合适。
我的自定义纹理视图
public class TextureVideoView 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;
public 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;
// mCurrentState is a TextureVideoView object's current state.
// mTargetState is the state that a method caller intends to reach.
// For instance, regardless the TextureVideoView object's current state,
// calling pause() intends to bring the object to a target state
// of STATE_PAUSED.
private int mCurrentState = STATE_IDLE;
private int mTargetState = STATE_IDLE;
// All the stuff we need for playing and showing a video
private Surface mSurface = null;
private MediaPlayer mMediaPlayer = null;
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 boolean mCanPause;
private boolean mCanSeekBack;
private boolean mCanSeekForward;
private Context mContext;
private ScaleType mScaleType;
private boolean isMute;
public enum ScaleType {
CENTER_CROP, TOP, BOTTOM
}
public TextureVideoView(Context context) {
super(context);
initVideoView();
}
public TextureVideoView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
initVideoView();
}
public TextureVideoView(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
}
LogUtil.w("LOG_TAG", "Mesured Width -->" + width + "Mesured Height is -->" + height);
setMeasuredDimension(width, height);
// super.onMeasure(widthMeasureSpec,heightMeasureSpec);
}
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
super.onInitializeAccessibilityEvent(event);
event.setClassName(TextureVideoView.class.getName());
}
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setClassName(TextureVideoView.class.getName());
}
private void initVideoView() {
mScaleType=ScaleType.BOTTOM;
mContext = getContext();
mVideoWidth = 0;
mVideoHeight = 0;
setSurfaceTextureListener(mSurfaceTextureListener);
setFocusable(true);
setFocusableInTouchMode(true);
requestFocus();
mPendingSubtitleTracks = new Vector<Pair<InputStream, MediaFormat>>();
mCurrentState = STATE_IDLE;
mTargetState = STATE_IDLE;
}
public void setVideoPath(String path) {
setVideoURI(Uri.parse(path));
}
public void setVideoURI(Uri uri) {
setVideoURI(uri, null);
}
public int getMediaState(){
return mCurrentState;
}
/**
* @hide
*/
public void setVideoURI(Uri uri, Map<String, String> headers) {
LogUtil.e("LOG_TAG","TextureVideoView-->"+ uri);
mUri = uri;
mHeaders = headers;
mSeekWhenPrepared = 0;
openVideo();
requestLayout();
invalidate();
}
private Vector<Pair<InputStream, MediaFormat>> mPendingSubtitleTracks;
public void stopPlayback() {
if (mMediaPlayer != null) {
mUri=null;
mMediaPlayer.stop();
mMediaPlayer.release();
mMediaPlayer = null;
mCurrentState = STATE_IDLE;
mTargetState = STATE_IDLE;
}
}
private void openVideo() {
if (mUri == null || mSurface == 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);
// we shouldn't clear the target state, because somebody might have
// called start() previously
release(false);
try {
mMediaPlayer = new MediaPlayer();
if (mAudioSession != 0) {
mMediaPlayer.setAudioSessionId(mAudioSession);
} else {
mAudioSession = mMediaPlayer.getAudioSessionId();
}
mMediaPlayer.setOnPreparedListener(mPreparedListener);
mMediaPlayer.setOnVideoSizeChangedListener(mSizeChangedListener);
mMediaPlayer.setOnCompletionListener(mCompletionListener);
mMediaPlayer.setOnErrorListener(mErrorListener);
mMediaPlayer.setOnInfoListener(mInfoListener);
mMediaPlayer.setOnBufferingUpdateListener(mBufferingUpdateListener);
mCurrentBufferPercentage = 0;
mMediaPlayer.setDataSource(mContext, mUri, mHeaders);
mMediaPlayer.setSurface(mSurface);
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setScreenOnWhilePlaying(true);
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();
}
}
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();
LogUtil.w("LOG_TAG","Video Width is -->"+ mVideoWidth + "Video Height is -->"+ mVideoHeight);
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);
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 OnCompletionListener mCompletionListener =
new OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
if (mCurrentState == STATE_PLAYBACK_COMPLETED) {
// sprylab bugfix: on some devices onCompletion is called twice
return;
}
mCurrentState = STATE_PLAYBACK_COMPLETED;
mTargetState = STATE_PLAYBACK_COMPLETED;
if (mMediaController != null) {
mMediaController.hide();
}
if (mOnCompletionListener != null) {
mOnCompletionListener.onCompletion(mMediaPlayer);
}
}
};
private OnInfoListener mInfoListener =
new OnInfoListener() {
public boolean onInfo(MediaPlayer mp, int arg1, int arg2) {
if (mOnInfoListener != null) {
mOnInfoListener.onInfo(mp, arg1, arg2);
}
return true;
}
};
private OnErrorListener mErrorListener =
new 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;
}
}
/* Otherwise, pop up an error dialog so the user knows that
* something bad has happened. Only try and pop up the dialog
* if we're attached to a window. When we're going away and no
* longer have a window, don't bother showing the user an error.
*/
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;
}
SurfaceTextureListener mSurfaceTextureListener = new SurfaceTextureListener()
{
@Override
public void onSurfaceTextureSizeChanged(final SurfaceTexture surface, final int width, final int height) {
mSurfaceWidth = width;
mSurfaceHeight = height;
boolean isValidState = (mTargetState == STATE_PLAYING);
boolean hasValidSize = (mVideoWidth == width && mVideoHeight == height);
if (mMediaPlayer != null && isValidState && hasValidSize) {
if (mSeekWhenPrepared != 0) {
seekTo(mSeekWhenPrepared);
}
start();
}
}
@Override
public void onSurfaceTextureAvailable(final SurfaceTexture surface, final int width, final int height) {
mSurface = new Surface(surface);
openVideo();
}
@Override
public boolean onSurfaceTextureDestroyed(final SurfaceTexture surface) {
// after we return from this we can't use the surface any more
if (mSurface != null) {
mSurface.release();
mSurface = null;
}
if (mMediaController != null) mMediaController.hide();
release(true);
return true;
}
@Override
public void onSurfaceTextureUpdated(final SurfaceTexture surface) {
// do nothing
}
};
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
if(mUri!=null){
LogUtil.e("LOG_TAG","TextureVideo View is hidden-->"+ mUri.getPath());
stopPlayback();
}
}
/*
* 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();
Constants.VIDEO_LENGTH = 0;
Constants.VIDEO_LENGTH = mMediaPlayer.getCurrentPosition();
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;
}
}
使用此纹理视图后，我会收到类似 video
的视频我需要这样Video image
请建议我应该怎样填补全宽
答案 0 :(得分：0)
更改此行：
mScaleType=ScaleType.BOTTOM;
到
mScaleType=ScaleType.FIT_XY;
如果您还有同样的问题，请检查设置为match_parent的布局，或者在视频开始播放的情况下设置scaleType.FIT_XY。