Use existing ContextCompat library for permissions checking.

import android.net.Uri;

import android.os.Bundle;

import android.provider.CallLog.Calls;

import android.support.v4.content.ContextCompat;

import android.telecom.PhoneAccountHandle;

import android.telecom.TelecomManager;

import android.text.TextUtils;

    }

    private static boolean hasPermission(Context context, String permission) {

        return context.getPackageManager().checkPermission(permission, context.getPackageName())

        return ContextCompat.checkSelfPermission(context, permission)

                == PackageManager.PERMISSION_GRANTED;

    }