Question

我的应用程序中有视频。代码是这样的。

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<LinearLayout android:layout_width="match_parent"
    android:layout_height="match_parent" android:orientation="vertical"
    android:background="@drawable/opsbuds">
    <TextView android:text="TextView" android:id="@+id/adtxt1"
        android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>
    <VideoView android:layout_width="300dip"
        android:layout_height="250dip" android:id="@+id/videoView11" android:layout_marginLeft="30dip"></VideoView>

    <LinearLayout android:layout_width="match_parent"
        android:id="@+id/llv11" android:layout_height="wrap_content"
        android:orientation="vertical">
    </LinearLayout>

    <Button android:text=" Continue " android:id="@+id/button1211"
        android:layout_width="wrap_content" android:textStyle="bold"
        android:layout_marginTop="10dp" android:layout_height="wrap_content"
        android:textSize="20dp" android:layout_marginLeft="5dp"
        android:textColor="#800080" android:background="@drawable/button"></Button>
</LinearLayout>

xml文件中提到了视频宽度和高度。我想要的是，一旦我按下按钮，视频视图应该全屏显示，一旦我按下后退按钮，视频视图应该回到它提到的大小。请帮忙吗？

Answer 1

以这种方式设置全屏，

DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
android.widget.LinearLayout.LayoutParams params = (android.widget.LinearLayout.LayoutParams) videoView.getLayoutParams();
params.width = metrics.widthPixels;
params.height = metrics.heightPixels;
params.leftMargin = 0;
videoView.setLayoutParams(params);

回到原来的大小，这样。

DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
android.widget.LinearLayout.LayoutParams params = (android.widget.LinearLayout.LayoutParams) videoView.getLayoutParams();
params.width = (int)(300*metrics.density);
params.height = (int)(250*metrics.density);
params.leftMargin = 30;
videoView.setLayoutParams(params);

Answer 2

我必须让我的VideoView坐在RelativeLayout中才能使所选答案有效。

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

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

</RelativeLayout>

如下所示：Android - How to stretch video to fill VideoView area在屏幕尺寸之间切换就像更改所选答案中给出的布局参数一样简单。

Answer 3

我这样做了：

检查这些参考屏幕截图。

添加课程 FullScreenVideoView.java ：

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);
    }
}

如何绑定与 xml ：

<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>

希望这会对你有所帮助。

Answer 4

第一种方法

如果要为该活动全屏打开视频，则必须在Manifest中设置主题属性。设置此值为

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

<强> change theme programmatically here

第二种方法

点击按钮

创建另一个fullscreen.xml，如下所示setContentView(R.layout.fullscreen)

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <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>

</RelativeLayout>

Answer 5

点击按钮，点击native video player将会在full screen：

中打开

Intent intent = new Intent(Intent.ACTION_VIEW );
intent.setDataAndType(Uri.parse(path), "video/*");
startActivity(intent);

Answer 6

您可以通过创建两个单独的活动来实现它。假设第一个活动是halfScreen活动。在此活动中，您的视频视图尺寸较小。在按钮上单击全屏视频，启动另一项活动＆＃39; fullScreen活动＆＃39;。在第二个活动中，视频视图应该与父布局的父级匹配。您也可以在半屏幕中暂停视频。在我的代码中，我已经实现了。还可以在半屏幕上恢复视频全屏活动的背面压力。这对我有用。希望它也适合你。

Here is the code
half.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#aa99cc"
    android:orientation="vertical" >

    <VideoView
        android:id="@+id/VideoViewhalf"
        android:layout_width="match_parent"
        android:layout_height="300dp" >
    </VideoView>

   <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/btnfullScreen"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="fullscreen" />

        <ProgressBar
            android:id="@+id/progressBar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />



    </LinearLayout>

</LinearLayout>

HalfScreen activity
public class HalfScreen extends Activity {
    Button btn;
    VideoView videoView = null;
    final int REQUEST_CODE = 5000;
    final String videoToPlay = "http://bffmedia.com/bigbunny.mp4";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.half);
        videoView = (VideoView) findViewById(R.id.VideoViewhalf);
        final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);
        btn = (Button) findViewById(R.id.btnfullScreen);

        Uri video = Uri.parse(videoToPlay);
        videoView.setVideoURI(video);
        videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            public void onPrepared(MediaPlayer mp) {
                progressBar.setVisibility(View.GONE);
                videoView.requestFocus();
                videoView.start();
            }
        });

        btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent videointent = new Intent(HalfScreen.this,
                        FullScreen.class);
                videointent.putExtra("currenttime",
                        videoView.getCurrentPosition());
                videointent.putExtra("Url", videoToPlay);
                startActivityForResult(videointent, REQUEST_CODE);

            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK && requestCode == REQUEST_CODE) {
            if (data.hasExtra("currenttime")) {
                int result = data.getExtras().getInt("currenttime", 0);
                if (result > 0) {
                    if (null != videoView) {
                        videoView.start();
                        videoView.seekTo(result);
                        ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);
                        progressBar.setVisibility(View.VISIBLE);

                    }
                }
            }
        }
    }
}

full.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ff99cc"
    android:orientation="vertical" >

    <VideoView
        android:id="@+id/VideoViewfull"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
    </VideoView>

</LinearLayout>

FullScreen Activity

public class FullScreen extends Activity {
    Button btn;
    VideoView videoView = null;
    int currenttime = 0;
    String Url = "";
    private static ProgressDialog progressDialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

        Bundle extras = getIntent().getExtras();
        if (null != extras) {
            currenttime = extras.getInt("currenttime", 0);
            Url = extras.getString("Url");
        }
        setContentView(R.layout.full);
        progressDialog = ProgressDialog.show(this, "", "Loading...", true);
        videoView = (VideoView) findViewById(R.id.VideoViewfull);
        MediaController mediaController = new MediaController(this);
        mediaController.setAnchorView(videoView);
        Uri video = Uri.parse(Url);
        videoView.setMediaController(mediaController);
        videoView.setVideoURI(video);

        videoView.setOnPreparedListener(new OnPreparedListener() {

            public void onPrepared(MediaPlayer arg0) {
                progressDialog.dismiss();
                videoView.start();
                videoView.seekTo(currenttime);
            }
        });
    }

    @Override
    public void finish() {
        Intent data = new Intent();
        data.putExtra("currenttime", videoView.getCurrentPosition());
        setResult(RESULT_OK, data);
        super.finish();
    }
}

Answer 7

我通过切换到横向方向并将布局参数设置为MATCH_PARENT来实现它。在切换到全屏模式之前，我们需要相应地在VideoView和defaultScreenOrientationMode变量中存储当前的定位模式和defaultVideoViewParams参数。因此，当我们退出视频全屏模式时，我们可以使用它们。因此，当您要以全屏模式打开视频时，请使用makeVideoFullScreen()方法退出 - exitVideoFullScreen()。

请注意，我使用了RelativeLayout作为我的VideoView，在您的情况下，它可以是另一种布局类型。

private RelativeLayout.LayoutParams defaultVideoViewParams;
private int defaultScreenOrientationMode;

// play video in fullscreen mode
private void makeVideoFullScreen() {

    defaultScreenOrientationMode = getResources().getConfiguration().orientation;
    defaultVideoViewParams = (LayoutParams) videoView.getLayoutParams();

    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

    videoView.postDelayed(new Runnable() {

        @Override
        public void run() {
            RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) new RelativeLayout.LayoutParams(
                    RelativeLayout.LayoutParams.MATCH_PARENT,
                    RelativeLayout.LayoutParams.MATCH_PARENT);

            videoView.setLayoutParams(params);
            videoView.layout(10, 10, 10, 10);
        }
    }, 700);
}


// close fullscreen mode
private void exitVideoFullScreen() {
    setRequestedOrientation(defaultScreenOrientationMode);
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);

    videoView.postDelayed(new Runnable() {

        @Override
        public void run() {
            videoView.setLayoutParams(defaultVideoViewParams);
            videoView.layout(10, 10, 10, 10);
        }
    }, 700);
}

Answer 8

是否要保留视频的宽高比或将其拉伸以填充其父区域，使用正确的布局管理器可以完成工作。

保持宽高比：

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

<VideoView
  android:id="@+id/videoView"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:layout_gravity="center"/>

</LinearLayout>

<强> !!!填写该字段：

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

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

</RelativeLayout>

Answer 9

以下代码有效。

    getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

在调用videoView.start（）之前添加此代码。这样，在大多数情况下，视频活动就会以全屏模式运行。但是，如果标题栏仍然显示，则将清单中的主题更改为此。

    android:theme="@style/Theme.AppCompat.NoActionBar">

Answer 10

请尝试以下代码。

if (!isFullScreen())
        {
            Log.v("Full screen", "-----------is full screen------------");  
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 
            DisplayMetrics displaymetrics = new DisplayMetrics();
              getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
              int height = displaymetrics.heightPixels;
              int width = displaymetrics.widthPixels;
              android.widget.FrameLayout.LayoutParams params = (android.widget.FrameLayout.LayoutParams) videoSurface.getLayoutParams();
              params.width = width;
              params.height=height;
              params.setMargins(0, 0, 0, 0);

        }
        else{
            Log.v("Full screen", "-----------small screen------------");    

            DisplayMetrics displaymetrics = new DisplayMetrics();
              getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
              int height = displaymetrics.heightPixels;
              int width = displaymetrics.widthPixels;
              android.widget.FrameLayout.LayoutParams params = (android.widget.FrameLayout.LayoutParams) videoSurface.getLayoutParams();
              params.width = width;
              params.height=height / 3;
              params.setMargins(0, 0, 0, 0);
        }

Answer 11

此代码适用于全屏风景视频

AndroidManifext.xml（设置方向）

        <activity
        android:name=".Video1"
        android:screenOrientation="landscape" />

Video1.java代码：

import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.WindowManager;
import android.widget.MediaController;
import android.widget.VideoView;

public class Video1 extends AppCompatActivity {

private VideoView videoView;
private MediaController mediaController;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_video1);

    videoView = findViewById(R.id.videoView);
    String fullScreen =  getIntent().getStringExtra("fullScreenInd");
    if("y".equals(fullScreen)){
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        getSupportActionBar().hide();
    }

    Uri videoUri = Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.YOUR_VIDEO_NAME);

    videoView.setVideoURI(videoUri);

    mediaController = new FullScreenMediaController(this);
    mediaController.setAnchorView(videoView);

    videoView.setMediaController(mediaController);
    videoView.start();
    }
}

FullScreenMediaControler.java代码：

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.Gravity;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageButton;
import android.widget.MediaController;

public class FullScreenMediaController extends MediaController {

private ImageButton fullScreen;
private String isFullScreen;

public FullScreenMediaController(Context context) {
    super(context);
}

@Override
public void setAnchorView(View view) {

    super.setAnchorView(view);

    //image button for full screen to be added to media controller
    fullScreen = new ImageButton (super.getContext());

    FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    params.gravity = Gravity.RIGHT;
    params.rightMargin = 80;
    addView(fullScreen, params);

    //fullscreen indicator from intent
    isFullScreen =  ((Activity)getContext()).getIntent().
            getStringExtra("fullScreenInd");

    if("y".equals(isFullScreen)){
        fullScreen.setImageResource(R.drawable.ic_fullscreen_exit);
    }else{
        fullScreen.setImageResource(R.drawable.ic_fullscreen);
    }

    //add listener to image button to handle full screen and exit full screen events
    fullScreen.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {

            Intent intent = new Intent(getContext(),Video1.class);

            if("y".equals(isFullScreen)){
                intent.putExtra("fullScreenInd", "");
            }else{
                intent.putExtra("fullScreenInd", "y");
            }
            ((Activity)getContext()).startActivity(intent);
        }
    });
  }
}

Answer 12

DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
android.widget.LinearLayout.LayoutParams params = (android.widget.LinearLayout.LayoutParams) mVideoView.getLayoutParams();
params.width = (int) metrics.widthPixels;
params.height = (int) metrics.heightPixels;
mVideoView.setLayoutParams(params);

playVideo();
aspectRatio = VideoInfo.AR_4_3_FIT_PARENT;
mVideoView.getPlayer().aspectRatio(aspectRatio);

AndroidView应用程序中的VideoView全屏

12 个答案: