Android初级教程_onKeyDown监听返回键无效

当我们的Activity继承了TabActivity,在该类中重写onKeyDown是监听不到返回键的,

具体解决方法如下:

重写dispatchKeyEvent

	/**
	 * 退出
	 */
	@Override
	public boolean dispatchKeyEvent(KeyEvent event) {
		if (event.getKeyCode() == KeyEvent.KEYCODE_BACK
				&& event.getAction() == KeyEvent.ACTION_DOWN
				&& event.getRepeatCount() == 0) {			
			//具体的操作代码
		}
		return super.dispatchKeyEvent(event);
	}

欢迎转载:http://blog.csdn.net/johnny901114/article/details/7822878