//dodati u klasu 

private int MY_PERM=1;

//dodati u onCreate()

if (ContextCompat.checkSelfPermission(this,
		Manifest.permission.READ_CONTACTS)
		!= PackageManager.PERMISSION_GRANTED) {
	             ActivityCompat.requestPermissions(this,
	       	new String[]{Manifest.permission.READ_CONTACTS},MY_PERM);
											}