Looking at a lot of cases about mobile phone rotation, I summarized them;
1. By using the onConfigurationChanged() method, the screen is dynamically loaded when it rotates, but this method can only obtain the horizontal and vertical screens, and can't judge the current rotation angle;

@Override
    protected void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
      Configuration mConfiguration = this.getResources().getConfiguration();
        int ori = mConfiguration.orientation;
        if (ori == mConfiguration.ORIENTATION_LANDSCAPE) {
            //Horizontal screen
            horizontalScreen();
        } else if (ori == mConfiguration.ORIENTATION_PORTRAIT) {
            //Vertical screen
            VerticalScreen();
        }
    }

2. Obtain the screen rotation angle of the current window through the dispatchTouchEvent event event;

  @Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
            int orientation = getScreenOrientation();
            if(orientation==0){
            //Vertical screen processing logic
         　　}else{
            //Horizontal screen processing logic
            }
        }
    }
}
　　　　mWindowManager = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE);
 　　　　int rotation = mWindowManager.getDefaultDisplay().getRotation();
        //0 means vertical screen; 90 means left horizontal screen; 180 means reverse vertical screen; 270 means right horizontal screen
        if (rotation == Surface.ROTATION_0) {
            return 0;
        } else if (rotation == Surface.ROTATION_90) {
            return 90;
        } else if (rotation == Surface.ROTATION_180) {
            return 180;
        } else if (rotation == Surface.ROTATION_270) {
            return 270;
        }
        return 0;
    }

3. The other way is to implement it through OrientationEventListener. There are many implementations on the Internet, so I won't write them here;