How to reject an incoming call programmatically in android?

Question

Possible duplicate:
How to block calls in android

Can someone tell me how to reject an incoming call programmatically in android?

Answer 1

We implement this solution in 3 stages:

but. Define this class or receiver:

This is your main class:

package com.sample; import java.lang.reflect.Method; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.PreferenceManager; import android.telephony.TelephonyManager; import android.util.Log; import android.widget.Toast; import com.android.internal.telephony.*; public class main extends BroadcastReceiver { private static final String TAG = null; String incommingNumber; String incno1= "9916090941"; public void onReceive(Context context, Intent intent) { Bundle bundle = intent.getExtras(); if(null == bundle) return; SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); try { // Java reflection to gain access to TelephonyManager's // ITelephony getter TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); Log.v(TAG, "Get getTeleService..."); Class c = Class.forName(tm.getClass().getName()); Method m = c.getDeclaredMethod("getITelephony"); m.setAccessible(true); com.android.internal.telephony.ITelephony telephonyService = (ITelephony) m.invoke(tm); Bundle b = intent.getExtras(); incommingNumber = b.getString(TelephonyManager.EXTRA_INCOMING_NUMBER); Log.v(TAG,incommingNumber ); Log.v(TAG,incno1 ); if ( incommingNumber.equals(incno1) ) { telephonyService = (ITelephony) m.invoke(tm); telephonyService.silenceRinger(); telephonyService.endCall(); Log.v(TAG,"BYE BYE BYE" ); } else{ telephonyService.answerRingingCall(); Log.v(TAG,"HELLO HELLO HELLO" ); } } catch (Exception e) { e.printStackTrace(); Log.e(TAG, "FATAL ERROR: could not connect to telephony subsystem"); Log.e(TAG, "Exception object: " + e); } } 

}

b. Manifest file:

 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.sample" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <receiver android:name=".main"> <intent-filter android:priority="100" > <action android:name="android.intent.action.PHONE_STATE" /> </intent-filter> </receiver> </application> <uses-sdk android:minSdkVersion="7" /> <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" /> <uses-permission android:name="android.permission.CALL_PHONE" /> <uses-permission android:name="android.permission.READ_PHONE_STATE" /> </manifest> 

c. Define telephone assistance, under com.android.internal.telephony

  package com.android.internal.telephony; interface ITelephony { boolean endCall(); void answerRingingCall(); void silenceRinger(); } 

mh: It worked only on the emulator, and not on real devices ... All devices above android 2.3 require root permission or installation as a system application in order to be able to use the android.permission.MODIFY_PHONE_STATE permission.