删除捕获的图像后，应用程序大小仍保持不变

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Environment;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class ImageManager {
    private Context context;

    public ImageManager(Context context) {
        this.context = context;
    }

    public void saveImage(Bitmap bitmap, String fileName) {
        File storageDir = context.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
        File imageFile = new File(storageDir, fileName);
        try (FileOutputStream out = new FileOutputStream(imageFile)) {
            bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void deleteImage(String fileName) {
        File storageDir = context.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
        File imageFile = new File(storageDir, fileName);
        if (imageFile.exists()) {
            imageFile.delete();
        }
    }
}