Question

我有一个SmsReceiver课，我想在主要活动中注册，我该怎么办？

我是Android新手。

Answer 1

你可以做两件事：

在BroadcastReceiver

Manifest

在代码中创建并注册BroadcastReceiver。

对于选项2（您要问的）：

在代码中创建BroadcastReceiver（MyBroadcastReceiver）。在Activity：

MyBroadcastReceiver mMyBroadcastReceiver;

在BroadcastReceiver中注册Activity：

IntentFilter filter = new IntentFilter(android.provider.Telephony.SMS_RECEIVED);
this.registerReceiver(mMyBroadcastReceiver, filter);

Answer 2

要让服务接收短信，请按照以下步骤操作：

更新清单，为您的应用授予接收短信的权限（WRITE_SMS，READ_SMS，RECEIVE_SMS）
请勿使用接收器意图过滤器更新清单！（哪一个每个示例代码在线似乎都可以）

在您的服务中，在您的服务类

中创建一个嵌套的BroadcastReceiver类

private class SMSreceiver extends BroadcastReceiver
{
    private final String TAG = this.getClass().getSimpleName();

    @Override
    public void onReceive(Context context, Intent intent)
    {
        Bundle extras = intent.getExtras();

        String strMessage = "";

        if ( extras != null )
        {
            Object[] smsextras = (Object[]) extras.get( "pdus" );

            for ( int i = 0; i < smsextras.length; i++ )
            {
                SmsMessage smsmsg = SmsMessage.createFromPdu((byte[])smsextras[i]);

                String strMsgBody = smsmsg.getMessageBody().toString();
                String strMsgSrc = smsmsg.getOriginatingAddress();

                strMessage += "SMS from " + strMsgSrc + " : " + strMsgBody;                    

                Log.i(TAG, strMessage);
            }

        }

    }

}

在您的服务类中，注册以接收 android.provider.Telephony.SMS_RECEIVED意图过滤器：

public class ServiceCommunicator extends Service
{
    private SMSreceiver mSMSreceiver;
    private IntentFilter mIntentFilter;

    @Override
    public void onCreate()
    {
        super.onCreate();

        //SMS event receiver
        mSMSreceiver = new SMSreceiver();
        mIntentFilter = new IntentFilter();
        mIntentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");
        registerReceiver(mSMSreceiver, mIntentFilter);
    }

    @Override
    public void onDestroy()
    {
        super.onDestroy();

        // Unregister the SMS receiver
        unregisterReceiver(mSMSreceiver);
    }
}

就是这样！

注意：包括你想知道为什么我没有从一个单独的BroadcastReceiver类中绑定到我的服务 - 它不起作用，因为bindService()不可用。

Answer 3

对于API级别19及以上

 IntentFilter smsFilter = new IntentFilter();
 smsFilter.addAction(Telephony.Sms.Intents.SMS_RECEIVED_ACTION);
registerReceiver(this.receiver, filter);

Answer 4

正如您要求在符合BroadcastReceiver的{{1}}内注册MainActivity

这是代码看起来像==＆gt;

registerReceiver-codewise-inside-MainActivity

Answer 5

private BroadcastReceiver receiver = new BroadcastReceiver() {

   @Override
   public void onReceive(Context context, Intent intent) {
       //some action
   }
};

IntentFilter filter = new IntentFilter("YOUR_ACTION");
registerReceiver(receiver, filter);

希望这有帮助

如何在主要活动中注册接收者？

5 个答案: