easyPermission.requestPermission(this, Manifest.permission.READ_CONTACTS);

    @Override
    public void onPermissionResult(String permission, boolean isGranted) {
        switch (permission) {
            case Manifest.permission.READ_CONTACTS:
                if (isGranted) {
                    //granted read contacts permission
                    //asking for one more permission after contacts permission is granted
                    easyPermission.requestPermission(MainActivity.this,Manifest.permission.ACCESS_COARSE_LOCATION);
                } else {
                    //denied read contacts permission
                    //asking for one more permission even after contacts permission is denied
                    easyPermission.requestPermission(MainActivity.this,Manifest.permission.ACCESS_COARSE_LOCATION);
                }
                break;
            case Manifest.permission.ACCESS_COARSE_LOCATION:
                if (isGranted) {
                    //granted access location permission
                } else {
                    //denied access location permission
                }
                break;
        }
    }

	allprojects {
		repositories {
			...
			maven { url 'https://jitpack.io' }
		}
	}

dependencies {
	        compile 'com.github.jineshfrancs:EasyPermission:2.0.2'
}