uninstall multiple apps

UninstallAppsActivity.java

package com.spencerstudios.multiappuninstaller.activities;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.spencerstudios.multiappuninstaller.R;

import java.util.ArrayList;
import java.util.Locale;

import cdflynn.android.library.checkview.CheckView;
import spencerstudios.com.bungeelib.Bungee;

public class UninstallAppsActivity extends AppCompatActivity {

    private static final int UNINSTALL_REQ_CODE = 123;
    private int qty_successful_uninstalls = 0;
    private int app_list_index_tracker = 0;

    private TextView tvApps;
    private ArrayList<String> apps;
    private ImageView btnHome;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_uninstall_apps);
        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        if(getSupportActionBar()!=null){
            getSupportActionBar().hide();
        }

        Intent i = getIntent();
        apps = i.getStringArrayListExtra("app_list");

        tvApps = findViewById(R.id.tv_apps);
        btnHome = findViewById(R.id.btn_home);

        btnHome.setVisibility(View.GONE);
        btnHome.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
                Bungee.slideLeft(UninstallAppsActivity.this);
            }
        });

        uninstallAllAppsFromList(apps.get(app_list_index_tracker));
    }

    private void uninstallAllAppsFromList(String packageName) {
        Intent intent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE);
        intent.setData(Uri.parse("package:" + packageName));
        intent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
        startActivityForResult(intent, UNINSTALL_REQ_CODE);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == UNINSTALL_REQ_CODE) {
            if (resultCode == RESULT_OK) {
                qty_successful_uninstalls++;
            } else if (resultCode == RESULT_FIRST_USER) {
                Toast.makeText(getApplicationContext(), "failed to uninstall :(", Toast
                        .LENGTH_SHORT).show();
            }

            if (app_list_index_tracker < apps.size() - 1) {
                app_list_index_tracker++;
                uninstallAllAppsFromList(apps.get(app_list_index_tracker));
            } else {
                new Handler().postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        tvApps.setText(String.format(Locale.getDefault(), "%d app(s)\nuninstalled", qty_successful_uninstalls));

                        btnHome.setVisibility(View.VISIBLE);
                        CheckView checkView = findViewById(R.id.check);
                        checkView.check();
                    }
                }, 500);
            }
        }
    }
    public void onBackPressed() {
        //do nothing...
    }
}