Videoview android崩溃

Question

我目前正在使用eclipse开发Android应用程序。但是，在我放置videoView之后，应用程序崩溃了。我把onCompletionListener放到了如果视频结束它自动跳转到主要活动。这是我的视频代码：

@Override
     public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.view_video);

     playVideo();
}

public void playVideo(){
         VideoView myVideoView = (VideoView)findViewById(R.id.myvideoview);
         setContentView(myVideoView);

         Uri video = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.endingvid);
         myVideoView.setVideoURI(video);
         myVideoView.setOnCompletionListener(new OnCompletionListener() {
           public void onCompletion(MediaPlayer mp) {
            jumpMain();
           }

          });
         myVideoView.start();
}

这里是xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent"
   android:layout_gravity="center_vertical|center"
   android:background="@drawable/black"
   >

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

任何人都知道我的代码有什么问题吗？

Answer 1

 VideoView myVideoView = (VideoView)findViewById(R.id.myvideoview);
 setContentView(myVideoView);

在使用R.id.myvideoview

设置版面之前，您无法引用setContentView

setContentView(R.layour.layout_with_videoview); 
VideoView myVideoView = (VideoView)findViewById(R.id.myvideoview);