Question

嗨我正在我的Android应用程序中播放视频，现在我想控制我的视频以全屏播放我有一个代码，但它包含错误，它说无效是变量onmeasure的有效类型我不知道如何纠正

public class video extends Activity {


String SrcPath =  "rtsp://v8.cache3.c.youtube.com/CjYLENy73wIaLQltaP8vg4qMsBMYDSANFEIJbXYtZ29vZ2xlSARSBXdhdGNoYOL6qv2DoMPrUAw=/0/0/0/video.3gp";

/** Called when the activity is first created. */

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.video1);


protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec){
   int parentWidth = MeasureSpec.getSize(widthMeasureSpec);
   int parentHeight = MeasureSpec.getSize(heightMeasureSpec);
   this.setMeasuredDimension(parentWidth/2, parentHeight);
   this.setLayoutParams(new *ParentLayoutType*.LayoutParams(parentWidth/2,parentHeight));
   super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}


VideoView myVideoView = (VideoView)findViewById(R.id.vview);
myVideoView.setVideoURI(Uri.parse(SrcPath));
myVideoView.setMediaController(new MediaController(this));
myVideoView.requestFocus();

}
 }

谢谢

Answer 1

编译问题是存在括号问题。移动

protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec){
   int parentWidth = MeasureSpec.getSize(widthMeasureSpec);
   int parentHeight = MeasureSpec.getSize(heightMeasureSpec);
   this.setMeasuredDimension(parentWidth/2, parentHeight);
   this.setLayoutParams(new *ParentLayoutType*.LayoutParams(parentWidth/2,parentHeight));
   super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

onCreate()中的不是。现在，方法不能直接包含其他方法。

此外，onMeasure()不是Activity中的方法，而是View中的方法。您应该查看文档，以便准确了解您想要做的事情。

Answer 2

您似乎可能希望将这两个函数作为类中的方法：

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.video1);

    // Set up the video when you create the activity
    VideoView myVideoView = (VideoView)findViewById(R.id.vview);
    myVideoView.setVideoURI(Uri.parse(SrcPath));
    myVideoView.setMediaController(new MediaController(this));
    myVideoView.requestFocus();
}

// On measure should be a different method also in the class video
protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec) {
   int parentWidth = MeasureSpec.getSize(widthMeasureSpec);
   int parentHeight = MeasureSpec.getSize(heightMeasureSpec);
   this.setMeasuredDimension(parentWidth/2, parentHeight);
   this.setLayoutParams(new *ParentLayoutType*.LayoutParams(parentWidth/2,parentHeight));
   super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

错误覆盖OnMeasure方法

2 个答案: