MainActivity.java

package com.dicoding.pocadiploma.masjidku;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

import com.dicoding.pocadiploma.masjidku.adapter.AboutMasjidAdapter;
import com.dicoding.pocadiploma.masjidku.adapter.CardViewMasjidAdapter;
import com.dicoding.pocadiploma.masjidku.adapter.GridMasjidAdapter;
import com.dicoding.pocadiploma.masjidku.adapter.ListMasjidAdapter;
import com.dicoding.pocadiploma.masjidku.model.DataMasjid;
import com.dicoding.pocadiploma.masjidku.model.Masjid;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    private RecyclerView rvMasjid;
    private ArrayList<Masjid> list = new ArrayList<>();
    private String title = "Mode List";

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

        rvMasjid = findViewById(R.id.rv_masjid);
        rvMasjid.setHasFixedSize(true);

        list.addAll(DataMasjid.getListData());
        showRecyclerList();
    }

    private void setActionBarTitle(String title) {
        if (getSupportActionBar() != null) {
            getSupportActionBar().setTitle(title);
        }
    }

    private void showRecyclerList() {
        rvMasjid.setLayoutManager(new LinearLayoutManager(this));
        ListMasjidAdapter listMasjidAdapter = new ListMasjidAdapter(list);
        rvMasjid.setAdapter(listMasjidAdapter);

        listMasjidAdapter.setOnItemClickCallback(new ListMasjidAdapter.OnItemClickCallback() {
            @Override
            public void onItemClicked(Masjid data) {
                showSelectedMasjid(data);
            }
        });
    }

    private void showRecyclerGrid() {
        rvMasjid.setLayoutManager(new GridLayoutManager(this, 2));
        GridMasjidAdapter gridMasjidAdapter = new GridMasjidAdapter(list);
        rvMasjid.setAdapter(gridMasjidAdapter);

        gridMasjidAdapter.setOnItemClickCallback(new GridMasjidAdapter.OnItemClickCallback() {
            @Override
            public void onItemClicked(Masjid data) {
                showSelectedMasjid(data);
            }
        });
    }

    private void showRecyclerCardView() {
        rvMasjid.setLayoutManager(new LinearLayoutManager(this));
        CardViewMasjidAdapter cardViewHeroAdapter = new CardViewMasjidAdapter(list);
        rvMasjid.setAdapter(cardViewHeroAdapter);
    }

    private void showRecyclerAbout() {
        Intent about = new Intent(MainActivity.this, AboutMasjidAdapter.class);
        about.putExtra(AboutMasjidAdapter.EXTRA_AUTHOR, "Budiman Rasyid");
        about.putExtra(AboutMasjidAdapter.EXTRA_EMAIL, "brasyid15@gmail.com");
        startActivity(about);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        setMode(item.getItemId());
        return super.onOptionsItemSelected(item);
    }

    public void setMode(int selectedMode) {
        switch (selectedMode) {
            case R.id.action_list:
                title = "Mode List";
                setActionBarTitle(title);
                showRecyclerList();
                break;
            case R.id.action_grid:
                title = "Mode Grid";
                setActionBarTitle(title);
                showRecyclerGrid();
                break;
            case R.id.action_cardview:
                title = "Mode Cardview";
                setActionBarTitle(title);
                showRecyclerCardView();
                break;
            case R.id.action_about:
                title = "Mode About";
                setActionBarTitle(title);
                showRecyclerAbout();
                break;
        }
    }

    private void showSelectedMasjid(Masjid masjid) {
        Toast.makeText(this, "Kamu memilih " + masjid.getName(), Toast.LENGTH_SHORT).show();

//        Intent detail = new Intent(MainActivity.this, MainDetail.class);
//        detail.putExtra(MainDetail.name, masjid.getName());
//        detail.putExtra(MainDetail.lokasi, masjid.getLokasi());
//        detail.putExtra(MainDetail.detail, masjid.getDetail());
//        detail.putExtra(MainDetail.photo, masjid.getPhoto());
//
//        startActivity(detail);
    }
}