以前写播放器都直接用VideoView,原因无它，简单。但是VideoView连播放暂停按钮给帮你写好了，不能自己控制，制定样式，效果千篇一律。今天学习用SurfaceView写个视频播放器。 布局：一个SurfaceView,三个按钮
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:weightSum="1">
<SurfaceView android:layout_height="220dip" android:layout_gravity="center" android:id="@+id/surface" android:layout_weight="0.25" android:layout_width="320dip"></SurfaceView>
<LinearLayout android:id="@+id/linearLayout1" android:layout_height="wrap_content" android:layout_width="fill_parent">
<Button android:text="播放" android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
<Button android:text="暂停" android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
<Button android:text="停止" android:id="@+id/button3" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
</LinearLayout>
</LinearLayout>
程序代码：
package com.pocketdigi.surface;
import android.app.Activity;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class SurfaceActivity extends Activity implements SurfaceHolder.Callback {
/** Called when the activity is first created. */
MediaPlayer player;
SurfaceView surface;
SurfaceHolder surfaceHolder;
Button play,pause,stop;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
play=(Button)findViewById(R.id.button1);
pause=(Button)findViewById(R.id.button2);
stop=(Button)findViewById(R.id.button3);
surface=(SurfaceView)findViewById(R.id.surface);
surfaceHolder=surface.getHolder();
//SurfaceHolder是SurfaceView的控制接口
surfaceHolder.addCallback(this);
//因为这个类实现了SurfaceHolder.Callback接口，所以回调参数直接this
surfaceHolder.setFixedSize(320, 220);
//显示的分辨率,不设置为视频默认
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
//Surface类型
play.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
player.start();
}});
pause.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
player.pause();
}});
stop.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
player.stop();
}});
}
@Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void surfaceCreated(SurfaceHolder arg0) {
// TODO Auto-generated method stub
//必须在surface创建后才能初始化MediaPlayer,否则不会显示图像
player=new MediaPlayer();
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
player.setDisplay(surfaceHolder);
//设置显示视频显示在SurfaceView上
try {
player.setDataSource("/sdcard/3.mp4");
player.prepare();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder arg0) {
// TODO Auto-generated method stub
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
if(player.isPlaying()){
player.stop();
}
player.release();
//Activity销毁时停止播放，释放资源。不做这个操作，即使退出还是能听到视频播放的声音
}
}