Cancel runtime permission request in Android

CancellablePermissionRequestActivity.java

import android.Manifest;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.NotificationCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;

import java.util.Arrays;

public class CancellablePermissionRequestActivity extends AppCompatActivity {

    private static final String LOG_TAG = CancellablePermissionRequestActivity.class
            .getSimpleName();

    private static final int NOTIFICATION_ID = 7211;
    private static final int REQUEST_CODE_FINISH = 996;
    private static final int REQUEST_CODE_PERMISSION = 1112;

    private Intent getFinishRequestIntent() {
        return new Intent(this, CancellablePermissionRequestActivity.class)
                .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_permission_request_proxy);

        findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(final View view) {
                Activity activity = CancellablePermissionRequestActivity.this;

                PendingIntent pendingIntent = PendingIntent
                        .getActivity(activity, REQUEST_CODE_FINISH, getFinishRequestIntent(),
                                PendingIntent.FLAG_UPDATE_CURRENT);

                Notification notification = new NotificationCompat.Builder(activity)
                        .setContentText("Click to stop permission request")
                        .setContentTitle("Title")
                        .setSmallIcon(android.R.drawable.ic_lock_power_off)
                        .setContentIntent(pendingIntent)
                        .setAutoCancel(true)
                        .build();

                NotificationManager notificationManager
                        = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

                notificationManager.notify(NOTIFICATION_ID, notification);

                ActivityCompat.requestPermissions(activity, new String[]{
                        Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_CODE_PERMISSION);
            }
        });
    }

    private void cancelNotification() {
        NotificationManager notificationManager
                = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        notificationManager.cancel(NOTIFICATION_ID);
    }

    @Override
    public void onRequestPermissionsResult(final int requestCode,
            @NonNull final String[] permissions,
            @NonNull final int[] grantResults) {
        Log.d(LOG_TAG, String
                .format("onRequestPermissionsResult(requestCode: %d; permissions: %s; " +
                                "grantResults: %s)", requestCode, Arrays.toString(permissions),
                        Arrays.toString(grantResults)));
        cancelNotification();
    }
}