<span style="font-size:18px;">Android中横屏竖屏的切换</span>

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<span style="font-size:18px;">Configuration configuration =getResources().getConfiguration();//获取系统的配置信息
        int orientation=configuration.orientation;//获取当前屏幕的横竖屏信息
    	if(orientation==Configuration.ORIENTATION_PORTRAIT){
    		setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);//设置屏幕为横屏
    		Toast.makeText(MainActivity.this, "这是横屏", Toast.LENGTH_LONG).show();//弹出一个消息提示
    	}else if(orientation==Configuration.ORIENTATION_LANDSCAPE){
    		setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
    		Toast.makeText(MainActivity.this, "这是竖屏", Toast.LENGTH_SHORT).show();
    	}</span>