如何确保广播接收器保持运行并监听传入的文本消息而不被操作系统终止

<receiver android:name=".MyBroadcastReceiver">
    <intent-filter>
        <action android:name="android.intent.action.SMS_RECEIVED" />
    </intent-filter>
</receiver>

public class MyBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        // 处理接收到的文本消息
        Bundle extras = intent.getExtras();
        if (extras != null) {
            Object[] pdus = (Object[]) extras.get("pdus");
            if (pdus != null) {
                for (Object pdu : pdus) {
                    // 解析短信内容
                    SmsMessage smsMessage = SmsMessage.createFromPdu((byte[]) pdu);
                    String messageBody = smsMessage.getMessageBody();
                    // 处理文本消息
                    processTextMessage(messageBody);
                }
            }
        }
    }

    private void processTextMessage(String message) {
        // 处理文本消息的逻辑
    }
}

public class MyBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        // 启动后台服务
        Intent serviceIntent = new Intent(context, MyBackgroundService.class);
        context.startService(serviceIntent);
    }
}

public class MyBackgroundService extends Service {
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        // 监听文本消息的逻辑
        // ...
        return START_STICKY; // 保证服务在被终止后能够自动重启
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}

<uses-permission android:name="android.permission.RECEIVE_SMS" />