在什么时候应该使用 unregisterReceiver？是在 onPause()、onDestroy() 还是 onStop() 中？
注意：我需要服务在后台运行。
更新：
我得到了一个释放接收器
null异常。Activity 泄漏了意图接收器，你是否忘记调用了
unregisterReceiver();？
请告诉我是否有什么问题，这是我的代码：
private boolean processedObstacleReceiverStarted;
private boolean mainNotificationReceiverStarted;
protected void onResume() {
super.onResume();
try {
registerReceivers();
} catch (Exception e) {
Log.e(MatabbatManager.TAG,
"MAINActivity: could not register receiver for Matanbbat Action "
+ e.getMessage());
}
}
private void registerReceivers() {
if (!mainNotificationReceiverStarted) {
mainNotificationReceiver = new MainNotificationReceiver();
IntentFilter notificationIntent = new IntentFilter();
notificationIntent
.addAction(MatabbatManager.MATABAT_LOCATION_ACTION);
notificationIntent
.addAction(MatabbatManager.MATABAT_New_DATA_RECEIVED);
notificationIntent
.addAction(MatabbatManager.STATUS_NOTIFCATION_ACTION);
registerReceiver(mainNotificationReceiver, notificationIntent);
mainNotificationReceiverStarted = true;
}
if (!processedObstacleReceiverStarted) {
processedObstacleReceiver = new ProcessedObstacleReceiver();
registerReceiver(processedObstacleReceiver, new IntentFilter(
MatabbatManager.MATABAT_ALARM_LOCATION_ACTION));
processedObstacleReceiverStarted = true;
}
}
private void unRegisterReceivers() {
if (mainNotificationReceiverStarted) {
unregisterReceiver(mainNotificationReceiver);
mainNotificationReceiverStarted = false;
}
if (processedObstacleReceiverStarted) {
unregisterReceiver(processedObstacleReceiver);
processedObstacleReceiverStarted = false;
}
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
try {
unRegisterReceivers();
mWakeLock.release();//keep screen on
} catch (Exception e) {
Log.e(MatabbatManager.TAG, getClass() + " Releasing receivers-" + e.getMessage());
}
}