本文详细解析了如何在Android系统中响应并处理关闭系统对话框的事件，通过注册广播接收器来监听ACTION_CLOSE_SYSTEM_DIALOG动作，并特别关注了HOME键触发的对话框事件。代码示例展示了创建服务类HomeService，实现服务的创建和销毁，以及定义广播接收器HomeReceive来接收系统对话框关闭的意图。文章旨在帮助开发者理解Android系统级事件的处理机制。
==homekey
Intent intent = new Intent(this,HomeService.class);
startService(intent);
Class HomeService extents Service
@Override
onCreate() {
super.onCreate();
home Receiver = new HomeReceive();
IntentFilter homeFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOG);
registerReceive(homeReceiver, homeFilter);
}
@Override
onDestroy {
unRegisterReceiver(homeReceiver);
homeReceiver = null;
super.onDestroy();
}
Class HomeReceive extends BroadcastReceiver {
private String SYSTEM_DIALOG_REASON_KEY = "reason";
private String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
@Override
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)) {
//OK
}
}
}
}
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