Android Extra在registerreceiver中始终返回null
在我的Android应用程序中,我希望能够在收到短信时通知某个活动,并为该活动提供发送者的号码。为了实现这个目标,我使用了一个BroadcastReceiver类来收集SMS发送者的电话号码,并以广播的方式发送它们Android Extra在registerreceiver中始终返回null,android,android-intent,broadcastreceiver,Android,Android Intent,Broadcastreceiver,在我的Android应用程序中,我希望能够在收到短信时通知某个活动,并为该活动提供发送者的号码。为了实现这个目标,我使用了一个BroadcastReceiver类来收集SMS发送者的电话号码,并以广播的方式发送它们 public class SMSReceiver extends BroadcastReceiver { final public static String SMS_BROADCAST = "myapp.BROADCAST_SMS"; final public st
public class SMSReceiver extends BroadcastReceiver {
final public static String SMS_BROADCAST = "myapp.BROADCAST_SMS";
final public static String SMS_BROADCAST_EXTRA = "myapp.GET_SMS";
@Override
public void onReceive(Context context, Intent intent) {
Bundle extras = intent.getExtras();
if (extras == null)
return;
Object[] pdus = (Object[]) extras.get("pdus");
SmsMessage Sms[] = new SmsMessage[pdus.length];
String numbers[] = new String[pdus.length];
//get the sms's
for (int i = 0; i < pdus.length; i++) {
Sms[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
String sender = Sms[i].getOriginatingAddress();
numbers[i] = sender;
}
//pass the number array to my activity via an intent.
Intent intent2 = new Intent(SMS_BROADCAST);
intent2.putExtra(SMS_BROADCAST_EXTRA, numbers);
LocalBroadcastManager.getInstance(context).sendBroadcast(intent2);
}
}
我仍然看不出我做错了什么,但我在Android开发方面还是个新手。因此,任何帮助都将不胜感激。您使用的是
活动intent方法getIntent()
而不是onReceive
intent
更改为getIntent()
到intent
String numbers[] = intent.getStringArrayExtra(SMSReceiver.SMS_BROADCAST_EXTRA);
getIntent()
!=<代码>意图
。
String numbers[] = intent.getStringArrayExtra(SMSReceiver.SMS_BROADCAST_EXTRA);