Home键监听

1. Home键是一个系统的按钮，我们无法通过onKeyDown进行拦截，它是拦截不到的，我们只能得到他在什么时候被按下了。就是通过广播接收者

    public class HomeKeyEventBroadCastReceiver extends BroadcastReceiver {
        static final String SYSTEM_REASON = "reason";
        static final String SYSTEM_HOME_KEY = "homekey";
        static final String SYSTEM_RECENT_APPS = "recentapps";
   
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
                String reason = intent.getStringExtra(SYSTEM_REASON);
                if (reason != null) {
                    if (reason.equals(SYSTEM_HOME_KEY)) {
                        // home key处理点
                    } else if (reason.equals(SYSTEM_RECENT_APPS)) {
                        // long home key处理点
                    }
                }
            }
        }
    }
   

2. 在Activity中去注册这个广播接收者

    receiver = new HomeKeyEventBroadCastReceiver();
    registerReceiver(receiver, new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));
   

3. 在Activity销毁的方法中去取消注册

    unRegisterReceiver(receiver);
   

• 邮箱 ：[email protected]
• Good Luck!