How to grant MODIFY_PHONE_STATE permission for apps ran on Gingerbread

Question

I write an application that attempts to modify phone call state. It works well on Android 2.2 or less, but throw an exception on Android 2.3 because of the lack of permissio

Answer 1

I got the solution.

Rather to override incoming call screen, do below two things. which will allow you to access accept and decline button and also allow you to show screen above your incoming call screen.

(1) Make one receiver class:

public class MyPhoneReceiver extends BroadcastReceiver {
@Override
public void onReceive(final Context context, final Intent intent) {
    Bundle extras = intent.getExtras();
    if (extras != null) 
    {
        String state = extras.getString(TelephonyManager.EXTRA_STATE);
        if (state.equals(TelephonyManager.EXTRA_STATE_RINGING)) 
            String phoneNumber = extras.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);

        Intent i = new Intent(context, IncomingCallActivity.class);
        i.putExtras(intent);
        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);
    }
    }
}

(2) your activity xml look like:

RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="top"
android:gravity="top"
android:orientation="vertical"
android:windowAnimationStyle="@android:style/Animation.Translucent"
android:windowBackground="@android:color/transparent"
android:windowIsTranslucent="true"

(3)Make your activity's layout transparent(which will come above calling screen),write below code in menifest

(4)In menifest add your broad cast receiver

(5) add below code in oncreate() of IncomingCallActivity

getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);

Cheers!

Let me know if you face any problem!