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);
}