app/src/main/java/com/example/multimedia/PhotoGalleryActivity.java - master - ap1k/MultimediaJavaAndroid

app/src/main/java/com/example/multimedia/PhotoGalleryActivity.java
93 строки3 KB
Roman
Full proj
11 май 2025, 13:58
11 май 2025, 13:584ffd117
package com.example.multimedia;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class PhotoGalleryActivity extends AppCompatActivity {

    private ImageView ivPhotoDisplay;
    private TextView tvPhotoCounter;
    private Button btnPreviousPhoto, btnNextPhoto;
    
    // Sample photos array (can be replaced with actual photos)
    private final int[] photoResources = {
            R.drawable.photo1,
            R.drawable.photo2,
            R.drawable.photo3
    };
    
    private int currentPhotoIndex = 0;
    private final int totalPhotos = photoResources.length;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_photo_gallery);
        
        // Initialize views
        ivPhotoDisplay = findViewById(R.id.ivPhotoDisplay);
        tvPhotoCounter = findViewById(R.id.tvPhotoCounter);
        btnPreviousPhoto = findViewById(R.id.btnPreviousPhoto);
        btnNextPhoto = findViewById(R.id.btnNextPhoto);
        
        // Set initial photo
        displayCurrentPhoto();
        
        // Setup button click listeners
        btnPreviousPhoto.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showPreviousPhoto();
            }
        });
        
        btnNextPhoto.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showNextPhoto();
            }
        });
    }
    
    /**
     * Display the current photo and update counter text
     */
    private void displayCurrentPhoto() {
        // Set the image resource
        ivPhotoDisplay.setImageResource(photoResources[currentPhotoIndex]);
        
        // Update the counter text
        String counterText = getString(R.string.photo_count, currentPhotoIndex + 1, totalPhotos);
        tvPhotoCounter.setText(counterText);
    }
    
    /**
     * Navigate to the previous photo
     */
    private void showPreviousPhoto() {
        // Decrease index and handle circular navigation
        currentPhotoIndex--;
        if (currentPhotoIndex < 0) {
            currentPhotoIndex = totalPhotos - 1;
        }
        
        // Display the updated photo
        displayCurrentPhoto();
    }
    
    /**
     * Navigate to the next photo
     */
    private void showNextPhoto() {
        // Increase index and handle circular navigation
        currentPhotoIndex = (currentPhotoIndex + 1) % totalPhotos;
        
        // Display the updated photo
        displayCurrentPhoto();
    }
}