Android mediaplayer video size modification (screen size mediaPlayer =...

1. You can change the video size by changing the view size.

2. When initializing a video, the height and width of the video are all 0. Note that the view size must be modified after playback.

3. The layout class of sufaceview is android. widget. LinearLayout. LayoutParams. Note this

4. Add mediaPlayer. setDisplay (arg0) to the sufaceview surfaceChanged event. The setDisplay method can be called at any time.

 

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Try {
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Log. e ("m3u8", mediapath );
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MediaPlayer = new MediaPlayer ();
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// Start preparation
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UiHandler. sendMessage (uiHandler
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. ObtainMessage (MediaPlayerMessage. PREPARE ));
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// Set the media path
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MediaPlayer. setDataSource (mediapath );
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// Sets the buffer for simultaneous playback.
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MediaPlayer. setAudioStreamType (AudioManager. STREAM_MUSIC );
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MediaPlayer. prepareAsync ();
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} Catch (Exception e ){
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// TODO: handle exception
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Log. e ("meidaplayer err", e. toString ());
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}
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/**
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* Player exception events
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*/
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MediaPlayer. setOnErrorListener (new OnErrorListener (){
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@ Override
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Public boolean onError (MediaPlayer mp, int what, int extra ){
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// TODO Auto-generated method stub
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MediaPlayer. release ();
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Return false;
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}
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});
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// The video can be played after preparation.
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MediaPlayer. setOnPreparedListener (new OnPreparedListener (){
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@ Override
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Public void onPrepared (MediaPlayer mp ){
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// TODO Auto-generated method stub
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Try {
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Mp. start ();
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<Span style = "color: # e53333; "> // send a message to the ui interface. Here, the latency is set. If no latency is set, a file with a high width and Zero Width will appear. </span>
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UiHandler. sendEmptyMessageDelayed (MediaPlayerMessage. SETSIZE, 1000 );
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} Catch (Exception e ){
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// TODO: handle exception
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Log. e ("start mediaplayer", e. toString ());
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}
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}
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});
View sourceprint?
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<Pre class = "brush: java; toolbar: true; auto-links: false;"> case MediaPlayerMessage. SETSIZE:
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Int mVideoWidth = mediaPlayerView. mediaPlayer. getVideoWidth ();
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Int mVideoHeight = mediaPlayerView. mediaPlayer. getVideoHeight ();
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Int width = _ frameLayout_main.getWidth ();
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Int height = _ frameLayout_main.getHeight ();
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<Span style = "color: # e53333;"> android. widget. LinearLayout. LayoutParams sufaceviewParams = (android. widget. LinearLayout. LayoutParams) mediapaly_sufaceview
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. GetLayoutParams (); </span> if (mVideoWidth * height> width * mVideoHeight ){
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// Log. I ("@", "image too tall, correcting ");
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SufaceviewParams. height = width * mVideoHeight/mVideoWidth;
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} Else if (mVideoWidth * height <width * mVideoHeight ){
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// Log. I ("@", "image too wide, correcting ");
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SufaceviewParams. width = height * mVideoWidth/mVideoHeight;
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} Else {
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SufaceviewParams. height = height;
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SufaceviewParams. width = width;
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}
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SufaceviewParams. gravity = Gravity. CENTER;
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Mediapaly_sufaceview.setLayoutParams (sufaceviewParams );
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Break; </pre> <p> </p>
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<Span style = "color: # e53333;"> // event after surface size </span> @ Override
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Public void surfaceChanged (SurfaceHolder arg0, int arg1, int arg2, int arg3 ){
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// TODO Auto-generated method stub www.2cto.com
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Log. e ("Surface h w", String. valueOf (arg2) + "" + String. valueOf (arg3 ));
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If (mediaPlayer! = Null ){
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<Span style = "color: # e53333;"> mediaPlayer. setDisplay (arg0); </span>}
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} <Br>

Author: tfc