Java 类android.content.ReceiverCallNotAllowedException 实例源码

private boolean tryToRegisterForNetworkStatusNotifications(Context context) {
    synchronized (lock) {
        if (hasRegisteredReceiver) {
            return true;
        }

        try {
            if (context == null) {
                return false;
            }
            context = context.getApplicationContext();
            context.registerReceiver(this, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
            hasRegisteredReceiver = true;
            return true;
        } catch (ReceiverCallNotAllowedException e) {
            return false;
        }
    }
}

public void getCurrentStatus(final Context context) {
    IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);

    try {
        Intent batteryStatus = context.registerReceiver(null, ifilter);

        if (batteryStatus != null) {
            level = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
            scale = batteryStatus.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
            mHealth = batteryStatus.getIntExtra(BatteryManager.EXTRA_HEALTH, 0);
            plugged = batteryStatus.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0);
            present = batteryStatus.getExtras().getBoolean(BatteryManager.EXTRA_PRESENT);
            status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, 0);
            technology = batteryStatus.getExtras().getString(BatteryManager.EXTRA_TECHNOLOGY);
            temperature = (float) (batteryStatus.getIntExtra(BatteryManager.EXTRA_TEMPERATURE, 0) / 10);
            voltage = (float) (batteryStatus.getIntExtra(BatteryManager.EXTRA_VOLTAGE, 0) / 1000);
        }
    } catch (ReceiverCallNotAllowedException e) {
        LOGE(TAG, "ReceiverCallNotAllowedException from Notification Receiver?");
        e.printStackTrace();
    }
}

@Override public Intent registerReceiver(final BroadcastReceiver receiver, final IntentFilter filter,
                                         final @Nullable String broadcastPermission, final @Nullable Handler scheduler) {
    if (receiver == null) {
        // Allow retrieving current sticky broadcast; this is safe since we
        // aren't actually registering a receiver.
        return super.registerReceiver(null, filter, broadcastPermission, scheduler);
    } else {
        throw new ReceiverCallNotAllowedException(
                "BroadcastReceiver components are not allowed to register to receive intents");
    }
}

@Override
public void onReceive(Context context, Intent intent) {
    LOGI(TAG, "onReceive called!");
    try {
        Notifier.updateStatusBar(context);
    } catch (ReceiverCallNotAllowedException e) {
        e.printStackTrace();
    }
}

@Override public boolean bindService(final Intent service, final ServiceConnection conn, final int flags) {
    throw new ReceiverCallNotAllowedException(
            "BroadcastReceiver components are not allowed to bind to services");
}