CODEWITHSUNDEEP
androidandroid-8.0-oreotelephonymanager
Krishna Sharma
Krishna Sharma

Reputation: 2877

How to end the incoming phone call programmatically specially on devices API level 25,26,27

I am working on an android application where I do intercept the incoming phone call and ending it programmatically on some user action. To achieve that have used ITelephony.endCall.

This implementation works fine only till API level 24. 

private void rejectCallViaTelephonyManager() {
    ITelephony telephonyService = getTelephonyService();
    if (telephonyService != null) {
        telephonyService.endCall();
    }
}

private ITelephony getTelephonyService() {
    TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
    try {
        Class c = Class.forName(tm.getClass().getName());
        Method m = c.getDeclaredMethod("getITelephony");
        m.setAccessible(true);
        return (ITelephony) m.invoke(tm);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

I also came across new API TelecomManager.endCall which got introduced in API level 28. which works fine for P beta device.

private void rejectCall() {
    try {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P /* 28 */) {
            TelecomManager manager = (TelecomManager) getSystemService(Context.TELECOM_SERVICE);
            if (manager != null) {
                // complains required API app requires API level 28 (current min is 21).
                manager.endCall();
            }
        } else {
            rejectCallViaTelephonyManager();
        }
        Log.d(TAG, "call ended successfully.");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

Now I am looking for solution to make it work for API level 25,26,27 too.

Any idea how can we do that ?

My goal is to "end incoming phone call" functionality should work for all the version API level 21 onward.

Upvotes: 2

Views: 902

Answers (1)

Ali Asjad
Ali Asjad

Reputation: 2013

Here is how I archived this and also work on android P version. First of all.
Manifest Permissions: 

    <uses-permission android:name="android.permission.READ_CALL_LOG" />
    <uses-permission android:name="android.permission.ANSWER_PHONE_CALLS"/>
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.PROCESS_INCOMING_CALLS" />
    <uses-permission
    android:name="android.permission.MODIFY_PHONE_STATE"
    tools:ignore="ProtectedPermissions" />

Now on API greater than 21 ask users to give runtime permissions in code also. if lower than oreo then ask like this.

 requestPermissions(new String[]{Manifest.permission.READ_CONTACTS, Manifest.permission.READ_PHONE_STATE},REQUEST_CONTACTS);

But if greater than oreo then.

requestPermissions(new String[]{Manifest.permission.READ_CONTACTS, Manifest.permission.ANSWER_PHONE_CALLS,Manifest.permission.READ_PHONE_STATE,Manifest.permission.READ_CALL_LOG},REQUEST_CONTACTS);

Now create a complete package in your app like this. 

com.android.internal.telephony

In this package place this interface.

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

Now end call like this.

 private void endCall(){
 ITelephony telephonyService;
TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
    if (tm == null)
        return;
    try {
        Class c = Class.forName(tm.getClass().getName());
        Method m = c.getDeclaredMethod("getITelephony");
        m.setAccessible(true);
        telephonyService = (ITelephony) m.invoke(tm);
    } catch (Exception e) {
        e.printStackTrace();
    }
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
        TelecomManager telecomManager = (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);
        if (telecomManager != null) {
            telecomManager.endCall();
        }
    } else {

        if (telephonyService != null) {
            telephonyService.silenceRinger();
            telephonyService.endCall();
        }
    }}

Upvotes: 1

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