android surfaceView实现播放视频功能

2023-07-24 01:10:04 73

本文实例为大家分享了androidsurfaceView实现播放视频的具体代码，供大家参考，具体内容如下

RelativeLayout

mySurfaceView

packagecom.example.examday11_4_1.surfaceview;

importandroid.content.Context;
importandroid.media.MediaPlayer;
importandroid.util.AttributeSet;
importandroid.view.SurfaceHolder;
importandroid.view.SurfaceView;

importjava.io.IOException;
importjava.text.SimpleDateFormat;

publicclassMySurfaceViewextendsSurfaceViewimplementsSurfaceHolder.Callback{
privateSurfaceHoldersurfaceHolder;
privateMediaPlayermediaPlayer;

publicMySurfaceView(Contextcontext){
super(context);
}

publicMySurfaceView(Contextcontext,AttributeSetattrs){
super(context,attrs);
surfaceHolder=getHolder();
surfaceHolder.addCallback(this);
if(mediaPlayer==null){
mediaPlayer=newMediaPlayer();
}
}

publicMySurfaceView(Contextcontext,AttributeSetattrs,intdefStyleAttr){
super(context,attrs,defStyleAttr);
}

publicMySurfaceView(Contextcontext,AttributeSetattrs,intdefStyleAttr,intdefStyleRes){
super(context,attrs,defStyleAttr,defStyleRes);
}

publicvoidsetDataPath(Stringpath){
mediaPlayer.reset();
try{
mediaPlayer.setDataSource(path);
mediaPlayer.prepareAsync();
mediaPlayer.setOnPreparedListener(newMediaPlayer.OnPreparedListener(){
@Override
publicvoidonPrepared(MediaPlayermp){
mediaPlayer.start();
}
});
}catch(IOExceptione){
e.printStackTrace();
}
}


@Override
publicvoidsurfaceCreated(SurfaceHolderholder){
mediaPlayer.setDisplay(surfaceHolder);
}

@Override
publicvoidsurfaceChanged(SurfaceHolderholder,intformat,intwidth,intheight){

}

@Override
publicvoidsurfaceDestroyed(SurfaceHolderholder){
if(mediaPlayer!=null){
mediaPlayer.release();
mediaPlayer=null;
}
}

//暂停/开始播放
publicvoidplayOrNo(){
if(mediaPlayer!=null){
if(mediaPlayer.isPlaying()){
mediaPlayer.pause();
}else{
mediaPlayer.start();
}
}
}

//拖动更新进度
publicvoidseekTo(intprogress){
if(mediaPlayer!=null){
intduration=mediaPlayer.getDuration();
intcurrent=progress*duration/100;
mediaPlayer.seekTo(current);
}
}

//获取播放进度
publicintgetProgress(){
if(mediaPlayer!=null){
intdruation=mediaPlayer.getDuration();
intcurrentPosition=mediaPlayer.getCurrentPosition();
intprogress=currentPosition*100/druation;
returnprogress;
}
return0;
}

//获取播放时长
publicStringgetCurrentTime(){
if(mediaPlayer!=null){
longcurrentPostion=mediaPlayer.getCurrentPosition();
SimpleDateFormatformat=newSimpleDateFormat("mm:ss");
Stringf=format.format(currentPostion);
returnf+"";

}
return"";
}

//获取时长
publicStringgetDuration(){
if(mediaPlayer!=null){
longduration=mediaPlayer.getDuration();
SimpleDateFormatformat=newSimpleDateFormat("mm:ss");
returnformat.format(duration)+"";
}
return"";
}

}

MainActivity

packagecom.example.examday11_4_1;

importandroid.Manifest;
importandroid.os.Build;
importandroid.os.Bundle;
importandroid.os.Handler;
importandroid.view.View;
importandroid.widget.Button;
importandroid.widget.SeekBar;
importandroid.widget.TextView;

importandroidx.appcompat.app.AppCompatActivity;

importcom.example.examday11_4_1.surfaceview.MySurfaceView;

importjava.util.Timer;
importjava.util.TimerTask;

publicclassMainActivityextendsAppCompatActivity{

privateMySurfaceViewmySurfaceView;
privateTextViewteNowTiem;
privateSeekBarsb;
privateTextViewteAllTiem;
privateButtonbutPlay;
privateTimertimer;
privateHandlerhandler=newHandler();
privateStringpath="http://uvideo.spriteapp.cn/video/2019/0512/56488d0a-7465-11e9-b91b-1866daeb0df1_wpd.mp4";

@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.M){
requestPermissions(newString[]{
Manifest.permission.READ_EXTERNAL_STORAGE
},100);
}
initView();
initTimer();

}

privatevoidinitTimer(){
timer=newTimer();
timer.schedule(newTimerTask(){
@Override
publicvoidrun(){
finalStringcurrentTime=mySurfaceView.getCurrentTime();
finalStringduration=mySurfaceView.getDuration();
finalintprogress=mySurfaceView.getProgress();
handler.post(newRunnable(){
@Override
publicvoidrun(){
sb.setProgress(progress);//设置进度条
teAllTiem.setText(duration);//设置总时长
teNowTiem.setText(currentTime);//设置当前时长
}
});
}
},0,100);
}

privatevoidinitView(){
mySurfaceView=(MySurfaceView)findViewById(R.id.sv);
mySurfaceView.setDataPath(path);
teNowTiem=(TextView)findViewById(R.id.te_nowTiem);
sb=(SeekBar)findViewById(R.id.sb);
teAllTiem=(TextView)findViewById(R.id.te_allTiem);
butPlay=(Button)findViewById(R.id.but_play);

//设置拖动
sb.setOnSeekBarChangeListener(newSeekBar.OnSeekBarChangeListener(){
@Override
publicvoidonProgressChanged(SeekBarseekBar,intprogress,booleanfromUser){
if(fromUser){
mySurfaceView.seekTo(progress);//视频播放拖动
}
}

@Override
publicvoidonStartTrackingTouch(SeekBarseekBar){

}

@Override
publicvoidonStopTrackingTouch(SeekBarseekBar){

}
});

//暂停播放
butPlay.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
mySurfaceView.playOrNo();
}
});

}
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

android surfaceView实现播放视频功能

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