32

我想知道我是否可以找到一种方法让视频通过 videoview 全屏运行？

我搜索了很多并尝试了很多方法，例如：

  1. 在清单中应用主题：

    android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

    但这并不强制视频全屏显示。

  2. 应用于活动本身：

    requestWindowFeature(Window.FEATURE_NO_TITLE);  
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,  
    WindowManager.LayoutParams.FLAG_FULLSCREEN);

    也不强制视频全屏显示。

强制视频全屏的唯一方法是：

<VideoView android:id="@+id/myvideoview"
    android:layout_width="fill_parent"
    android:layout_alignParentRight="true"
    android:layout_alignParentLeft="true" 
    android:layout_alignParentTop="true" 
    android:layout_alignParentBottom="true" 
    android:layout_height="fill_parent"> 
</VideoView>

这样会产生全屏视频，但会拉伸视频本身（拉长的视频），

我没有将这个不正确的解决方案应用于我的视频视图，那么有什么方法可以在不拉伸视频的情况下做到这一点？

视频类：

public class Video extends Activity {
    private VideoView myvid;

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.main);
        myvid = (VideoView) findViewById(R.id.myvideoview);
        myvid.setVideoURI(Uri.parse("android.resource://" + getPackageName() 
            +"/"+R.raw.video_1));
        myvid.setMediaController(new MediaController(this));
        myvid.requestFocus();
        myvid.start();
    }
}

主.xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <VideoView
        android:id="@+id/myvideoview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

</LinearLayout>
4

8 回答 8

48

像这样你可以自己设置视频的属性。

使用 SurfaceView（让您对视图有更多控制权），将其设置为 fill_parent 以匹配整个屏幕

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     
              android:orientation="vertical" 
              android:layout_width="match_parent"
              android:layout_height="fill_parent">

    <SurfaceView
        android:id="@+id/surfaceViewFrame"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_gravity="center" >
    </SurfaceView>
</Linearlayout>

然后在您的 java 代码上获取表面视图并将您的媒体播放器添加到其中

surfaceViewFrame = (SurfaceView) findViewById(R.id.surfaceViewFrame);
player = new MediaPlayer();
player.setDisplay(holder);

在您的媒体播放器上设置一个 onPreparedListener 并手动计算所需的视频大小，以所需的比例填充屏幕，避免拉伸视频！

player.setOnPreparedListener(new OnPreparedListener() {

        @Override
        public void onPrepared(MediaPlayer mp) {
                    // Adjust the size of the video
    // so it fits on the screen
    int videoWidth = player.getVideoWidth();
    int videoHeight = player.getVideoHeight();
    float videoProportion = (float) videoWidth / (float) videoHeight;       
    int screenWidth = getWindowManager().getDefaultDisplay().getWidth();
    int screenHeight = getWindowManager().getDefaultDisplay().getHeight();
    float screenProportion = (float) screenWidth / (float) screenHeight;
    android.view.ViewGroup.LayoutParams lp = surfaceViewFrame.getLayoutParams();

    if (videoProportion > screenProportion) {
        lp.width = screenWidth;
        lp.height = (int) ((float) screenWidth / videoProportion);
    } else {
        lp.width = (int) (videoProportion * (float) screenHeight);
        lp.height = screenHeight;
    }
    surfaceViewFrame.setLayoutParams(lp);

    if (!player.isPlaying()) {
        player.start();         
    }

        }
    });

我从前段时间关注的视频流教程修改了这个，现在找不到它来引用它，如果有人这样做，请添加答案的链接！

希望能帮助到你！

编辑

好的，因此，如果您希望视频占据整个屏幕并且不希望它拉伸，那么最终会在侧面出现黑色条纹。在我发布的代码中，我们正在找出更大的视频或手机屏幕，并以最佳方式对其进行调整。

那里有我的完整活动，从链接流式传输视频。它是 100% 功能性的。我不能告诉你如何从你自己的设备上播放视频，因为我不知道。我相信您会在此处或此处的文档中找到它。

public class VideoPlayer extends Activity implements Callback, OnPreparedListener, OnCompletionListener, 
    OnClickListener {   

private SurfaceView surfaceViewFrame;
private static final String TAG = "VideoPlayer";
private SurfaceHolder holder;
private ProgressBar progressBarWait;
private ImageView pause;
private MediaPlayer player; 
private Timer updateTimer;
String video_uri = "http://daily3gp.com/vids/familyguy_has_own_orbit.3gp";  


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.videosample);       


    pause = (ImageView) findViewById(R.id.imageViewPauseIndicator);
    pause.setVisibility(View.GONE);
    if (player != null) {
        if (!player.isPlaying()) {
            pause.setVisibility(View.VISIBLE);
        }
    }


    surfaceViewFrame = (SurfaceView) findViewById(R.id.surfaceViewFrame);
    surfaceViewFrame.setOnClickListener(this);
    surfaceViewFrame.setClickable(false);

    progressBarWait = (ProgressBar) findViewById(R.id.progressBarWait);

    holder = surfaceViewFrame.getHolder();
    holder.addCallback(this);
    holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

    player = new MediaPlayer();
    player.setOnPreparedListener(this);
    player.setOnCompletionListener(this);
    player.setScreenOnWhilePlaying(true);
    player.setDisplay(holder);
}

private void playVideo() {
        new Thread(new Runnable() {
            public void run() {
                try {
                    player.setDataSource(video_uri);
                    player.prepare();
                } catch (Exception e) { // I can split the exceptions to get which error i need.
                    showToast("Error while playing video");
                    Log.i(TAG, "Error");
                    e.printStackTrace();
                } 
            }
        }).start();     
}

private void showToast(final String string) {
    runOnUiThread(new Runnable() {
        public void run() {
            Toast.makeText(VideoPlayer.this, string, Toast.LENGTH_LONG).show();
            finish();
        }
    });
}


public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
    // TODO Auto-generated method stub

}

public void surfaceCreated(SurfaceHolder holder) {
    playVideo();
}

public void surfaceDestroyed(SurfaceHolder holder) {
    // TODO Auto-generated method stub

}
//prepare the video
public void onPrepared(MediaPlayer mp) {        
    progressBarWait.setVisibility(View.GONE);

    // Adjust the size of the video
    // so it fits on the screen
    int videoWidth = player.getVideoWidth();
    int videoHeight = player.getVideoHeight();
    float videoProportion = (float) videoWidth / (float) videoHeight;       
    int screenWidth = getWindowManager().getDefaultDisplay().getWidth();
    int screenHeight = getWindowManager().getDefaultDisplay().getHeight();
    float screenProportion = (float) screenWidth / (float) screenHeight;
    android.view.ViewGroup.LayoutParams lp = surfaceViewFrame.getLayoutParams();

    if (videoProportion > screenProportion) {
        lp.width = screenWidth;
        lp.height = (int) ((float) screenWidth / videoProportion);
    } else {
        lp.width = (int) (videoProportion * (float) screenHeight);
        lp.height = screenHeight;
    }
    surfaceViewFrame.setLayoutParams(lp);

    if (!player.isPlaying()) {
        player.start();         
    }
    surfaceViewFrame.setClickable(true);
}

// callback when the video is over
public void onCompletion(MediaPlayer mp) {
    mp.stop();
    if (updateTimer != null) {
        updateTimer.cancel();
    }
    finish();
}

//pause and resume
public void onClick(View v) {
    if (v.getId() == R.id.surfaceViewFrame) {
         if (player != null) {
            if (player.isPlaying()) {
                player.pause();
                pause.setVisibility(View.VISIBLE);
            } else {
                player.start();
                pause.setVisibility(View.GONE);
            }
        }
    }
}

}
于 2012-09-09T01:45:43.597 回答
4 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        videoView1 = (VideoView) findViewById(R.id.videoview);
                String SrcPath = "/mnt/sdcard/final.mp4";
        videoView1.setVideoPath(SrcPath);
        videoView1.setMediaController(new MediaController(this));
        videoView1.requestFocus();      
        videoView1.start();     
    }
}




<VideoView
    android:id="@+id/videoview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentTop="true" >
</VideoView>

试试这个它对我有用

于 2012-09-07T07:01:23.220 回答
3

当前赞成的解决方案有效，但原始问题可能有更简单的解决方案。一位评论者正确地指出，您可以使用相同的方法调整 VideoView 的大小，而无需将所有内容转换为 SurfaceView。我在我的一个应用程序中对此进行了测试，它似乎有效。只需在 OnPreparedListener 回调中将计算出的布局参数添加到 VideoView 中即可：

mInspirationalVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { @Override public void onPrepared(MediaPlayer mp) { // mMediaPlayer = mp;

            mp.setOnSeekCompleteListener(new MediaPlayer.OnSeekCompleteListener() {
                @Override
                public void onSeekComplete(MediaPlayer mp) {
                    if(isPlaying = true) {
                        stopPosition = 0;
                        mp.start();
                        mVideoProgressTask = new VideoProgress();
                        mVideoProgressTask.execute();
                    }
                }
            });


            // so it fits on the screen
            int videoWidth = mp.getVideoWidth();
            int videoHeight = mp.getVideoHeight();
            float videoProportion = (float) videoWidth / (float) videoHeight;


            DisplayMetrics mDisplayMetrics = new DisplayMetrics();
            getWindowManager().getDefaultDisplay().getMetrics(mDisplayMetrics);

            float screenWidth = mDisplayMetrics.widthPixels;
            float screenHeight = mDisplayMetrics.heightPixels;

            float screenProportion = (float) screenWidth / (float) screenHeight;
            android.view.ViewGroup.LayoutParams lp = mInspirationalVideoView.getLayoutParams();

            if (videoProportion > screenProportion) {
                lp.width = screenWidth;
                lp.height = (int) ((float) screenWidth / videoProportion);
            } else {
                lp.width = (int) (videoProportion * (float) screenHeight);
                lp.height = screenHeight;
            }

            mInspirationalVideoView.setLayoutParams(lp);

           ...

        }
    });
于 2018-08-21T20:58:15.523 回答
2

这是我的功能，适用于全屏视频而不拉伸它。它会自动裁剪视频的两侧。它适用于纵向和横向模式。

它实际上取自答案。

    public void onPrepared(MediaPlayer mp) {
        int videoWidth = mediaPlayer.getVideoWidth();
        int videoHeight = mediaPlayer.getVideoHeight();

        DisplayMetrics displayMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        int screenWidth = displayMetrics.widthPixels;
        int screenHeight = displayMetrics.heightPixels;

        float scaleY = 1.0f;
        float scaleX = (videoWidth * screenHeight / videoHeight) / screenWidth;

        int pivotPointX = (int) (screenWidth / 2);
        int pivotPointY = (int) (screenHeight / 2);

        surfaceView.setScaleX(scaleX);
        surfaceView.setScaleY(scaleY);
        surfaceView.setPivotX(pivotPointX);
        surfaceView.setPivotY(pivotPointY);

        mediaPlayer.setLooping(true);
        mediaPlayer.start();
    }
于 2019-02-10T08:58:33.657 回答
1

Have you tried adjusting the underlying surface holder size? Try the code below it should adjust the surface holder to be the same width and height of the screen size. You should still have your activity be full screen without a title bar.

    public class Video extends Activity {
        private VideoView myvid;

        @Override
        public void onCreate(Bundle icicle) {
            super.onCreate(icicle);
            setContentView(R.layout.main);
            myvid = (VideoView) findViewById(R.id.myvideoview);
            myvid.setVideoURI(Uri.parse("android.resource://" + getPackageName() 
                +"/"+R.raw.video_1));
            myvid.setMediaController(new MediaController(this));
            myvid.requestFocus();

            //Set the surface holder height to the screen dimensions
            Display display = getWindowManager().getDefaultDisplay();
            Point size = new Point();
            display.getSize(size);
            myvid.getHolder().setFixedSize(size.x, size.y);

            myvid.start();
        }
    }
于 2012-09-08T19:51:30.627 回答
1

好吧，我希望它对FullscreenVideoView有帮助

它处理所有关于表面视图和全屏视图的无聊代码，让你只关注 UI 按钮。

如果您不想构建自定义按钮，则可以使用 FullscreenVideoLayout。

于 2016-05-30T14:54:01.933 回答
0

A SurfaceView gives u an optimized drawing surface

public class YourMovieActivity extends Activity implements SurfaceHolder.Callback {
        private MediaPlayer media = null;
        //...

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

            media = new MediaPlayer();
            mSurfaceView = (SurfaceView) findViewById(R.id.surface);
            //...
        }
    }

MediaPlayer calls should be wrapped in a try{}.

    @Override
    public void surfaceCreated(SurfaceHolder holder) {

        media.setDataSource("android.resource://" + getPackageName() 
            +"/"+R.raw.video_);
        media.prepare();

            int videoWidth = mp.getVideoWidth();
        int videoHeight = mp.getVideoHeight();

            int screenWidth = getWindowManager().getDefaultDisplay().getWidth();

            android.view.

ViewGroup.LayoutParams layout = mSurfaceView.getLayoutParams();

    layout.width = screenWidth;

    layout.height = (int) (((float)videoHeight / (float)videoWidth) * (float)screenWidth);

    mSurfaceView.setLayoutParams(layout);        

    mp.start();
}
于 2012-09-08T05:18:52.330 回答
-1

我已经通过Custom VideoView解决了这个问题：

我以两种方式从 xml 和以编程方式将 VideoView 添加到 ParentView。

为 VideoView 添加自定义类，以FullScreenVideoView.java命名：

import android.content.Context;
import android.util.AttributeSet;
import android.widget.VideoView;

public class FullScreenVideoView extends VideoView {
    public FullScreenVideoView(Context context) {
        super(context);
    }

    public FullScreenVideoView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public FullScreenVideoView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec){
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        setMeasuredDimension(widthMeasureSpec, heightMeasureSpec);
    }
}

如何与xml绑定：

<FrameLayout
   android:id="@+id/secondMedia"
   android:layout_width="match_parent"
   android:layout_height="match_parent">

     <com.my.package.customview.FullScreenVideoView
           android:layout_width="match_parent"
           android:layout_height="match_parent" 
           android:id="@+id/fullScreenVideoView"/>

</FrameLayout>

或者

如何以编程方式将VideoView添加到ParentView：

FullScreenVideoView videoView = new FullScreenVideoView(getActivity());
parentLayout.addView(videoView, new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));

希望这会帮助你。

于 2015-12-23T06:48:14.370 回答