横竖屏的切换

// 配置android:configChanges 防止切换的时候销毁重新创建activity

// 更改屏幕方向

 public void onConfigurationChanged(Configuration newConfig) {
        // TODO Auto-generated method stub
        super.onConfigurationChanged(newConfig);
        System.out.println("方向改变了");
    }
    
    public void change(View v){
        
         //获取当前屏幕的方向
        int orientation = getResources().getConfiguration().orientation;
        if (orientation == Configuration.ORIENTATION_PORTRAIT) {
            //切换
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        }else {
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        }
    }