Android WindowManager 监听返回键及home键

一、监听home键盘，Android Home键系统负责监听，捕获后系统自动处理。有时候，我们需要监听home键处理自己的逻辑，监听方法如下:

    /**

     * 监听home键广播

     */

    private final static BroadcastReceiver homeListenerReceiver = new BroadcastReceiver() {

        final String SYSTEM_DIALOG_REASON_KEY = "reason";



        final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";



        @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_DIALOG_REASON_KEY);

                if (reason != null && reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {

                    // 处理自己的逻辑

                }

            }

        }

    };

在创建View时注册Receiver

IntentFilter homeFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);

context.registerReceiver(homeListenerReceiver, homeFilter);

在View消失时反注册Receiver

// 反注册home监听

if (homeListenerReceiver != null) {

   context.unregisterReceiver(homeListenerReceiver);

}

二、WindowManager view中监听返回及menu键

重写dispatchKeyEvent

    @Override

    public boolean dispatchKeyEvent(KeyEvent event) {

        switch (event.getKeyCode()) {

            case KeyEvent.KEYCODE_BACK:

            case KeyEvent.KEYCODE_MENU:

                // 处理自己的逻辑break;

            default:

                break;

        }

        return super.dispatchKeyEvent(event);

    }