首先,对我的语法不好感到抱歉。我正在使用broadcastreceiver开发自动回复消息应用程序,但是当我可以从活动接收到Broadcastreceiver的值时遇到问题,自动回复将不起作用。但是,如果我没有从Activity那里获得价值,那就行得通。这是我的活动代码,我将其放在onSensorChanged()中
Intent i = new Intent("my.action.string");
i.putExtra("apaan", lala);
sendBroadcast(i);
这是我的广播接收器类
public class AutoReply extends BroadcastReceiver{
private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED";
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.i("message", "Broadcast Received: " +action);
if (action.equals(SMS_RECEIVED) && action.equals("my.action.string")) {
Bundle bundle = intent.getExtras();
String state = bundle.getString("apaan");
if (bundle != null) {
Object[] pdus = (Object[]) bundle.get("pdus");
final SmsMessage[] sms = new SmsMessage[pdus.length];
String isiSMS = "", noPengirim = "";
for (int i = 0; i < pdus.length; i++) {
sms[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
isiSMS = sms[i].getMessageBody();//mengambil isi pesan dari pengirim
noPengirim = sms[i].getOriginatingAddress();//mengambil no pengirim
}
String message = state;//isi balasan autoreplay
SmsManager smsSend = SmsManager.getDefault();
smsSend.sendTextMessage(noPengirim, null, message, null, null);
}
}
}
这是我的清单
<receiver android:name=".AutoReply" android:enabled="true">
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
<action android:name="my.action.string" />
</intent-filter>
</receiver>
最佳答案
该操作永远不会同时是android.provider.Telephony.SMS_RECEIVED
和my.action.string
。
更改此:
if (action.equals(SMS_RECEIVED) && action.equals("my.action.string")) {
对此:
if (action.equals(SMS_RECEIVED) || action.equals("my.action.string")) {
此外,您不会在手动创建的Intent中发送
pdus
,因此,当您调用bundle.get("pdus")
时,它将返回null。然后,当您调用pdus.length
时,它将抛出NullPointerException。