但是我一直没能解决的问题是如何消除数据源更改和新视频开始之间的1-2秒黑屏闪烁。这个间隙会显示一个黑屏,我找不到任何方法来解决它。
我尝试将父视图的背景设置为图像,但仍然无法解决。即使SurfaceView是透明的(默认情况下也是如此)。我还尝试过同时播放多个视频文件,并在其中一个结束并应该开始另一个时切换mediaplayer的显示。
我最后尝试的是,在视频“准备”时显示一个临时的背景视图,并在视频准备好开始时将其删除。但这也不是非常流畅。
有没有办法消除这个间隙?循环播放视频非常出色,除了选择的不同视频以外,它完全满足我的要求。
main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:background="@drawable/background"
android:layout_height="fill_parent">
<SurfaceView
android:id="@+id/surface"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center">
</SurfaceView>
</FrameLayout>
Player.java
public class Player extends Activity implements
OnCompletionListener, MediaPlayer.OnPreparedListener, SurfaceHolder.Callback {
private MediaPlayer player;
private SurfaceView surface;
private SurfaceHolder holder;
public void onCreate(Bundle b) {
super.onCreate(b);
setContentView(R.layout.main);
surface = (SurfaceView)findViewById(R.id.surface);
holder = surface.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
public void onCompletion(MediaPlayer arg0) {
File clip = new File(Environment.getExternalStorageDirectory(),"file2.mp4");
playVideo(clip.getAbsolutePath());
}
public void onPrepared(MediaPlayer mediaplayer) {
holder.setFixedSize(player.getVideoWidth(), player.getVideoHeight());
player.start();
}
private void playVideo(String url) {
try {
File clip = new File(Environment.getExternalStorageDirectory(),"file1.mp4");
if (player == null) {
player = new MediaPlayer();
player.setScreenOnWhilePlaying(true);
}
else {
player.stop();
player.reset();
}
player.setDataSource(url);
player.setDisplay(holder);
player.setOnPreparedListener(this);
player.prepare();
player.setOnCompletionListener(this);
}
catch (Throwable t) {
Log.e("ERROR", "Exception Error", t);
}
}