app/src/main/java/com/libraprogramming/myapplication/presentation/activity/MainActivity.java - master - Libra/my-application

app/src/main/java/com/libraprogramming/myapplication/presentation/activity/MainActivity.java
145 строк6 KB
Толмачёв Владимир Викторович
Architecture refactoring 2
20 июл 2026, 17:22
20 июл 2026, 17:2287aa6f2
package com.libraprogramming.myapplication.presentation.activity;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.util.Log;
import android.widget.Toast;
import android.window.OnBackInvokedDispatcher;
import androidx.core.app.NotificationCompat;
import androidx.preference.PreferenceManager;
import androidx.appcompat.app.AppCompatActivity;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
import com.libraprogramming.myapplication.MyApplication;
import com.libraprogramming.myapplication.R;
import com.libraprogramming.myapplication.databinding.ActivityMainBinding;

import android.view.Menu;
import android.view.MenuItem;
import com.libraprogramming.myapplication.presentation.internal.di.HasComponent;
import com.libraprogramming.myapplication.presentation.internal.di.component.CardComponent;
import com.libraprogramming.myapplication.presentation.internal.di.component.DaggerCardComponent;

public class MainActivity extends AppCompatActivity implements HasComponent<CardComponent> {
    private final static String TAG = "MainActivity";

    private AppBarConfiguration appBarConfiguration;
    private NavController navController;
    private ActivityMainBinding binding;
    private CardComponent component;
    private boolean doubleBackToExitPressedOnce = false;
    private Toast exitHintToast;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        ((MyApplication) getApplication()).getApplicationComponent().inject(this);

        component = DaggerCardComponent.builder()
                .myApplicationComponent(((MyApplication) getApplication()).getApplicationComponent())
                .build();
        binding = ActivityMainBinding.inflate(getLayoutInflater());

        setContentView(binding.getRoot());
        setSupportActionBar(binding.toolbar);

        navController = Navigation.findNavController(this, R.id.nav_host_fragment_content_main);
        appBarConfiguration = new AppBarConfiguration.Builder(navController.getGraph()).build();
        NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);

        binding.fab.setOnClickListener(view -> {
//                    MainActivity.this.navController.navigate(R.id.navigate_to_add_card);

            NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            NotificationCompat.Builder builder = new NotificationCompat.Builder(this, NotificationChannel.EDIT_IMPORTANCE);
            Notification notification = builder
                    .setContentTitle("My Application")
                    .setContentText("This is simple notification")
                    .setSmallIcon(com.google.android.material.R.drawable.ic_search_black_24)
                    .setProgress(100, 100, true)
                    .build();
            notificationManager.notify(1, notification);
        });

        getOnBackInvokedDispatcher().registerOnBackInvokedCallback(OnBackInvokedDispatcher.PRIORITY_DEFAULT, () -> {
            if (MainActivity.this.doubleBackToExitPressedOnce) {
                if (MainActivity.this.exitHintToast != null) {
                    MainActivity.this.exitHintToast.cancel();
                    MainActivity.this.exitHintToast = null;
                }

                MainActivity.this.finish();

                return;
            }

            MainActivity.this.doubleBackToExitPressedOnce = true;
            MainActivity.this.exitHintToast = Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT);
            MainActivity.this.exitHintToast.addCallback(new Toast.Callback() {
                @Override
                public void onToastHidden() {
                    super.onToastHidden();
                    MainActivity.this.exitHintToast = null;
                }
            });
            MainActivity.this.exitHintToast.show();

            new Handler(Looper.getMainLooper()).postDelayed(
                    () -> MainActivity.this.doubleBackToExitPressedOnce = false,
                    2000
            );
        });

        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
        String currentTheme = preferences.getString("current_theme", "NotSet");

        Log.d(TAG, String.format("Current theme: \"%s\"", currentTheme));
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            startActivity(
                    new Intent(MainActivity.this, ApplicationSettingsActivity.class)
            );
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public boolean onSupportNavigateUp() {
        NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_content_main);
        return NavigationUI.navigateUp(navController, appBarConfiguration)
                || super.onSupportNavigateUp();
    }

    @Override
    public CardComponent getComponent() {
        return component;
    }
}