1的详细代码

好的，下面是实现简易相册的详细代码：

1. 在XML文件中添加GridView组件，例如：

<GridView
    android:id="@+id/grid_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:numColumns="3"
    android:verticalSpacing="5dp"
    android:horizontalSpacing="5dp"
    android:stretchMode="columnWidth" />

2. 创建一个Photo类，例如：

public class Photo {
    private String path;
    private String name;

    public Photo(String path, String name) {
        this.path = path;
        this.name = name;
    }

    public String getPath() {
        return path;
    }

    public String getName() {
        return name;
    }
}

3. 创建一个PhotoAdapter类，例如：

public class PhotoAdapter extends BaseAdapter {
    private Context context;
    private List<Photo> photoList;

    public PhotoAdapter(Context context, List<Photo> photoList) {
        this.context = context;
        this.photoList = photoList;
    }

    @Override
    public int getCount() {
        return photoList.size();
    }

    @Override
    public Object getItem(int position) {
        return photoList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.grid_item_photo, parent, false);
        }

        ImageView imageView = convertView.findViewById(R.id.image_view);
        String path = photoList.get(position).getPath();
        Glide.with(context).load(path).into(imageView);

        return convertView;
    }
}

4. 在Activity中读取相册中的图片，例如：

private void loadPhotos() {
    String[] projection = {MediaStore.Images.Media.DATA, MediaStore.Images.Media.DISPLAY_NAME};
    Cursor cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, projection, null, null, null);

    if (cursor != null) {
        List<Photo> photoList = new ArrayList<>();

        while (cursor.moveToNext()) {
            String path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
            String name = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DISPLAY_NAME));
            photoList.add(new Photo(path, name));
        }

        cursor.close();

        PhotoAdapter photoAdapter = new PhotoAdapter(this, photoList);
        gridView.setAdapter(photoAdapter);
    }
}

5. 在GridView中显示图片，例如：

<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/image_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scaleType="centerCrop" />

6. 当用户点击某张图片时，可以使用Intent打开该图片并进行查看，例如：

gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        String path = photoList.get(position).getPath();
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setDataAndType(Uri.parse("file://" + path), "image/*");
        startActivity(intent);
    }
});

以上就是实现简易相册的详细代码，希望能对你有所帮助。