想在包中打包一个小视频进行部署

Question

有没有什么方法可以以编程方式引用一个非常小的视频文件并将其包含在包中 - 即我不想将其单独放在 SD 卡上。我正在考虑将其放入“原始”包目录中。

例如，MPEG4 在“原始”中称为“视频”

我试图找出 Uri.parse() 的正确格式，但它打败了我。我认为它应该类似于 R.raw （在设置音频媒体播放器时使用 myMediaPlayer = MediaPlayer.create(this, R.raw.audiocameralive1) - 但它似乎不是。

任何建议

奥利弗

Answer 1

我看到有很多观点，所以如果有人正在寻找解决方案，这就是我最终所做的 - 并且似乎工作得很好。可能有更干净的方法来做同样的事情，但是，这对我来说很有意义......

奥利弗

public class ShowVideoActivity extends Activity 
    implements SurfaceHolder.Callback, 
    OnErrorListener,
    OnPreparedListener,
    OnCompletionListener
{

/** Called when the activity is first created. */
private MediaPlayer myMediaPlayer;
boolean bolMediaPlayerIsReleased = false;

// The SurfaceHolder and SurfaceView are used to display the video
// By implementing the SurfaceHolder.Callback interface means that we have
// to implement surfaceChanged(), surfaceCreated() and surfaceDestroyed()
private SurfaceView videoSurface;
private SurfaceHolder videoHolder;

Display currentDisplay;

@Override
public void onCreate(Bundle savedInstanceState)
    {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.showvideo);  // Inflate ShowVideo

    // Identify the Surface that will be used to hold the camera image
    videoSurface = (SurfaceView)findViewById(R.id.videosurface);
    // The SurfaceHolder 'monitors' activity on the Surface
    videoHolder = videoSurface.getHolder();
    videoHolder.setKeepScreenOn(true);

    // Data will be Pushed onto the buffers external to the surface
    videoHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    videoHolder.setKeepScreenOn(true);
    // Let the monitor know that 'this' activity is responsible for
    // all the callback functions.
    videoHolder.addCallback(this);
    // It is now up to the 'callbacks' to do any further processing

    myMediaPlayer = MediaPlayer.create(this,R.raw.filename);
    myMediaPlayer.setOnCompletionListener(this);
    myMediaPlayer.setOnErrorListener(this);
    myMediaPlayer.setOnPreparedListener(this);
    myMediaPlayer.setOnCompletionListener(this);
    currentDisplay = getWindowManager().getDefaultDisplay();
    }

// Set up a listener to wait for MediaPlayer End  (Is this PlaybackCompleted()?)
public void onCompletion(MediaPlayer mp)
    {
    Wrapup(mp);
    }

public void surfaceCreated(SurfaceHolder CreatedHolder) {
    // Surface created, now it is possible to set the preview
    myMediaPlayer.setDisplay(CreatedHolder);
    }

public void surfaceDestroyed(SurfaceHolder DestroyedHolder) 
    {
    if (myMediaPlayer != null)
        {
        if (myMediaPlayer.isPlaying() )
            myMediaPlayer.stop();
        myMediaPlayer.release();
        bolMediaPlayerIsReleased = true;
        }
    }

public void surfaceChanged(SurfaceHolder ChangedHolder, int intFormat, int intWidth, int intHeight) 
    {
    if (myMediaPlayer.isPlaying())
        return;
    else
        {
        setVideoSurfaceSize(myMediaPlayer);
        myMediaPlayer.start();
        }
}

public boolean onError(MediaPlayer mPlayer, int intError, int intExtra)
    {
    return false;
    }

public void onPrepared(MediaPlayer mPlayer)
    {
    setVideoSurfaceSize(mPlayer);
    mPlayer.start();
    // From the 'Started' mode, the player can either be 'Stopped', 'Paused' or PlaybackCompleted'
    }  // End onPrepared


public void Wrapup(MediaPlayer mp)
    {
    if (mp != null)
        {
        if (myMediaPlayer.isPlaying() )
            mp.stop();
        mp.release();
        bolMediaPlayerIsReleased = true;
        }

    // Now clean up before terminating.  This is ESSENTIAL
    // If cleanup is NOT done then the surfaceDestroyed will get called
    // and screw up everything
    // Firstly remove the callback
    videoHolder.removeCallback(this);  // Prevents callbacks when the surface is destroyed

    ShowVideoActivity.this.finish();                    
    }
}

Answer 2

使用 Activity.getAssets() 获取 AssetManager。使用open加载文件。