如何在gridview中展示相册中的图片

您可以使用GridView和Adapter来展示相册中的图片。首先，您需要获取相册中的图片路径，然后将其加载到GridView中。以下是一个简单的示例代码：

1. 获取相册中的图片路径

private ArrayList<String> getGalleryPhotos() {
    ArrayList<String> galleryList = new ArrayList<String>();

    final String[] projection = { MediaStore.Images.Media.DATA };
    final String orderBy = MediaStore.Images.Media.DATE_TAKEN;
    Cursor imageCursor = getContentResolver().query(
            MediaStore.Images.Media.EXTERNAL_CONTENT_URI, projection, null,
            null, orderBy + " DESC");

    if (imageCursor != null && imageCursor.moveToFirst()) {
        do {
            String path = imageCursor.getString(imageCursor
                    .getColumnIndex(MediaStore.Images.Media.DATA));
            galleryList.add(path);
        } while (imageCursor.moveToNext());
    }
    imageCursor.close();
    return galleryList;
}

2. 加载图片到GridView中

GridView gridView = (GridView) findViewById(R.id.gridview);
ArrayList<String> galleryList = getGalleryPhotos();
gridView.setAdapter(new ImageAdapter(this, galleryList));

3. 实现ImageAdapter

public class ImageAdapter extends BaseAdapter {
    private Context context;
    private ArrayList<String> galleryList;

    public ImageAdapter(Context context, ArrayList<String> galleryList) {
        this.context = context;
        this.galleryList = galleryList;
    }

    public int getCount() {
        return galleryList.size();
    }

    public Object getItem(int position) {
        return galleryList.get(position);
    }

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

    public View getView(int position, View convertView, ViewGroup parent) {
        ImageView imageView;
        if (convertView == null) {
            imageView = new ImageView(context);
            imageView.setLayoutParams(new GridView.LayoutParams(200, 200));
            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        } else {
            imageView = (ImageView) convertView;
        }

        // 加载图片
        Glide.with(context).load(galleryList.get(position)).into(imageView);

        return imageView;
    }
}

这样就可以在GridView中展示相册中的图片了。