在GridView，Android中加载驱动器映像

Question

Hye all，我是android的新手。我想问一下是否可以在gridView中添加驱动器文件夹图像？到目前为止，我已经完成了应用程序，我手动将图像添加到drawable文件夹中。但现在我想加载在线images.Plus我不想添加每个单个图像的URL。我可以添加文件夹路径并让它自动加载带有图像的gridView吗？下面是我的ImageAdapter类，我手动添加图像。

public class ImageAdapter extends BaseAdapter {
private Context mContext;
Bitmap bmImg;
ImageView imageView;

// Keep all Images in array
public Integer[] mThumbIds = {
R.drawable.macro,
        R.drawable.macro1,
        R.drawable.macro2,
        R.drawable.macro3,
        R.drawable.macro4,
        R.drawable.macro5,
        R.drawable.macro6,
        R.drawable.macro7,


};

// Constructor
public ImageAdapter(Context c){
    mContext = c;
}

@Override
public int getCount() {
    return mThumbIds.length;
}

@Override
public Object getItem(int position) {
    return mThumbIds[position];
}

@Override
public long getItemId(int position) {
    return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    ImageView imageView = new ImageView(mContext);
    imageView.setImageResource(mThumbIds[position]);
    imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
    imageView.setLayoutParams(new GridView.LayoutParams(300, 300));
    return imageView;
}