There are several key points to intercept text messages:
1) Android receives text messages in broadcast mode.
2) The program only needs to add the "receive" SMS permission to its manifest. xml file.
<Uses-Permission Android: Name = "android. Permission. receive_sms"> </uses-Permission>
3) Write a broadcast receiving class.
Public class smsreceiveandmask extends broadcastreceiver {
Private string tag = "smsreceiveandmask ";
@ Override
Public void onreceive (context, intent ){
}
4) intent-filter should be added to the receiver tag of manifest. XML, and action is
<Action Android: Name = "android. provider. telephony. sms_received"/>
5) It is important to add the priority on the intent-filter so that you can receive the SMS messages first than the system or other software.
<Cycler Android: Name = ". smsreceiveandmask">
<Intent-filter Android: Priority = "1000">
<Action Android: Name = "android. provider. telephony. sms_received"/>
</Intent-filter>
</Cycler>
6) when your program receives the SMS to be blocked, use this. abortbroadcast (); to end broadcasting and send it to other programs, so that the system will not receive text message broadcast and notification will not prompt
