Java 编译错误:对非静态方法的静态引用
我无法从另一个类调用方法startVideo()。当我尝试编译时,出现以下错误:Java 编译错误:对非静态方法的静态引用,java,android,compiler-errors,Java,Android,Compiler Errors,我无法从另一个类调用方法startVideo()。当我尝试编译时,出现以下错误: Cannot make a static reference to the non-static method findViewById(int) from the type Activity 下面是startVideo()方法代码: public static void startVideo(){ startButton = (Button) findViewById(R.id.start_btn);
Cannot make a static reference to the non-static method findViewById(int) from the type Activity
下面是startVideo()方法代码:
public static void startVideo(){
startButton = (Button) findViewById(R.id.start_btn);
startButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(width>1000){
setContentView(R.layout.lesson_large);
}else{
setContentView(R.layout.lesson);
}
//@@@ FOR INTRO AV @@@//
VideoView videoView = (VideoView) findViewById(R.id.videoView1);
MediaController mediaControler = new MediaController(Main.this);
mediaControler.setAnchorView(videoView);
Uri introVideo = Uri.parse(statics.urlAv + "AV264.MP4");
videoView.setMediaController(mediaControler);
videoView.setVideoURI(introVideo);
videoView.start();
//@@@ FOR LESSON/SUBLESSSON AV @@@//
videoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
VideoView videoView = (VideoView) findViewById(R.id.videoView1);
MediaController mediaControler = new MediaController(Main.this);
mediaControler.setAnchorView(videoView);
Uri video = Uri.parse(statics.urlAv + "AV264.MP4");
videoView.setMediaController(mediaControler);
videoView.setVideoURI(video);
videoView.start();
}
});
}
});
menu();
exit();
}
任何帮助都将不胜感激。谢谢您正在从静态方法调用findViewById,它不是静态方法。实例方法只能在实例上调用
您应该使其成为非静态的,或者在那里创建类的实例并使用它的findviewbyd您正在从静态方法调用findviewbyd,它不是静态方法。实例方法只能在实例上调用
要么让它成为非静态的,要么在那里创建一个类的实例并使用它的findViewById选项卡使代码块不满意。您应该尝试使用空格。制表符会使代码块不满意。你应该试试空格。