android - Start application without activity, my Broadcast Receiver not work

Question

In my app, I have a Broadcast Receiver for catching the message sent to my phone

<receiver
            android:name="com.qmobile.ows.SMS_Receiver"
            android:enabled="true" 
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.PHONE_STATE" />
                <action android:name="android.provider.Telephony.SMS_RECEIVED" />                  
            </intent-filter>
</receiver>

If I start app with activity GUI, the BroadCast Receiver works normally.

I want to start my application without activity and do not show icon app, so I remove this code below from my activity

 <intent-filter>
                  <action android:name="android.intent.action.MAIN" />
              <category android:name="android.intent.category.LAUNCHER" />
 </intent-filter>

And after that, Broadcast Receiver do not work.

Please help me solve this problem.

Answer 1

For Android 3.1 and higher,

You have to launch one of your activities before any manifest-registered BroadcastReceiver will work.

See developer docs specifically the section -

Launch controls on stopped applications for android-3.1