简单的Android ijkplayer播放视频

ijkplayer是Bilibili基于ffmpeg开发并开源的轻量级视频播放器，支持播放本地网络视频，也支持流媒体播放。

使用ijkplayer

使用ijkplayer播放视频前我们需要添加依赖  

compile 'com.squareup:otto:1.3.8'
compile 'tv.danmaku.ijk.media:ijkplayer-java:0.8.4'

compile 'tv.danmaku.ijk.media:ijkplayer-armv7a:0.8.4'
compile 'tv.danmaku.ijk.media:ijkplayer-armv5:0.8.4'
compile 'tv.danmaku.ijk.media:ijkplayer-arm64:0.8.4'
compile 'tv.danmaku.ijk.media:ijkplayer-x86:0.8.4'
compile 'tv.danmaku.ijk.media:ijkplayer-x86_64:0.8.4'

还有权限: 

<uses-permission android:name="android.permission.INTERNET" />

接下来就是具体实现代码:

XML很简单 一个播放的SurfaceView 一个暂停按钮 一个播放按钮:

<SeekBar
    android:max="100"
    android:id="@+id/seekbar"
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:layout_below="@+id/surfaceView"
   />

<LinearLayout
    android:id="@+id/line1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:gravity="center"
    android:layout_below="@+id/seekbar"
    android:layout_alignParentStart="true">

    <Button
        android:id="@+id/buttonOne"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="btnClick"
        android:text="暂停"
        />
    <Button
        android:id="@+id/buttonTwo"
        android:layout_width="wrap_content"
        android:onClick="btnClick"
        android:layout_height="wrap_content"
        android:text="播放"
        />

LinearLayout>

<SurfaceView
    android:id="@+id/surfaceView"
    android:layout_width="480dp"
    android:layout_height="400dp"
    android:layout_alignParentTop="true"
    android:layout_alignParentStart="true" />

需要实现的接口:

public class MainActivity extends Activity  implements View.OnClickListener,
        SurfaceHolder.Callback, IMediaPlayer.OnPreparedListener,
        IMediaPlayer.OnCompletionListener,IMediaPlayer.OnSeekCompleteListener,
        IMediaPlayer.OnBufferingUpdateListener,SeekBar.OnSeekBarChangeListener

资源URI 

private String mUriTwo = "http://covertness.qiniudn.com/android_zaixianyingyinbofangqi_test_baseline.mp4";

声明一些变量 

IjkMediaPlayer mediaPlayer;
private SurfaceView surfaceView;
private SurfaceHolder surfaceHolder;
private Button mButtonone;
private Button mButtontwo;
private SeekBar seekbar;
int currentP;
boolean isSeek;
boolean isprd;

实例化控件和一些监听器

mButtonone =(Button)findViewById(R.id.buttonOne);
mButtontwo =(Button)findViewById(R.id.buttonTwo);
seekbar = (SeekBar) findViewById(R.id.seekbar);
seekbar.setOnSeekBarChangeListener(this);
mButtonone.setOnClickListener(this);
mButtontwo.setOnClickListener(this);
surfaceView= (SurfaceView)findViewById(R.id.surfaceView);
surfaceHolder=surfaceView.getHolder();
surfaceHolder.addCallback(this);

mediaPlayer=new IjkMediaPlayer();//直接new个IjkMediaPlayer 就行
try {
    mediaPlayer.setDataSource(mUriTwo);
} catch (IOException e) {
    e.printStackTrace();
}

//mediaPlayer准备工作
mediaPlayer.setOnPreparedListener(this);
//MediaPlayer完成
mediaPlayer.setOnCompletionListener(this);
mediaPlayer.setOnBufferingUpdateListener(this);

@Override
public void surfaceCreated(SurfaceHolder holder) {
    //连接ijkPlayer 和surfaceHOLDER
    mediaPlayer.setDisplay(holder);
    //开启异步准备
    mediaPlayer.prepareAsync();
}

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

}

@Override
public void surfaceDestroyed(SurfaceHolder holder) {
    if (mediaPlayer.isPlaying()){
        mediaPlayer.pause();
    }

}

/**
 * 当异步开启后 执行这个方法 
 * @param iMediaPlayer
 */
@Override
public void onPrepared(IMediaPlayer iMediaPlayer) {

    isprd = true;
    //设置seekbar的长度为视频播放的长度
    seekbar.setMax((int)iMediaPlayer.getDuration());
    //开启异步
    handler.post(runnable);
    //开启异步后视频会自动播放 所以需要暂停
    if (mediaPlayer.isPlaying()){
        mediaPlayer.pause();
    }

}

Handler handler = new Handler();
Runnable runnable = new Runnable() {
    @Override
    public void run() {
        //加个开关 在刷进度条的时候先判断是不是正在拖动
        if (isSeek)
            return;
        //获取当前视频播放的位置
        int cur = (int)mediaPlayer.getCurrentPosition();
        if(cur > 0 && cur != currentP){
            currentP = cur;
            seekbar.setProgress(currentP);//设置进度条
        }
        //每50毫秒刷新一下进度条
        handler.postDelayed(runnable,50);
    }
};

接下来是拖动Seekbar设置:

@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

}

@Override
public void onStartTrackingTouch(SeekBar seekBar) {
    //一个开关 当开始拖动时改变成true
        isSeek = true;
    //判断是不是正在播放 如果正在播放就暂停
        if (mediaPlayer.isPlaying()){
            mediaPlayer.pause();
        }

}

@Override
public void onStopTrackingTouch(SeekBar seekBar) {
    //一个开关 当开始拖动完成时改变乘false
     isSeek = false;
    //设置到当前拖动进度条的位置 然后start
    mediaPlayer.seekTo(seekBar.getProgress());
    mediaPlayer.start();
}

播放暂停按钮:

@Override
public void onClick(View v) {
    switch (v.getId()) {
        case R.id.buttonOne:
            mediaPlayer.pause();
            break;
        case R.id.buttonTwo:
            if (!isprd){
                return;
            }
            if (!mediaPlayer.isPlaying()){
                mediaPlayer.start();
            }
            break;
    }
}