android - 如何使用 Picasso 库设置 ImageView ？

Question

我有我的 GridViewAdapter，我想用我从 Picasso 加载的内容设置一个 ImageView 。图像已加载，但未显示在 GridView 中，只有当我单击图像时才会全屏显示图像，就像我单击它时所做的那样。每个答案都会被预估。谢谢。

private static LayoutInflater inflater = null;

public GridViewAdapter(Activity a, String[] fpath, String[] fname) {
    activity = a;
    filepath = fpath;
    filename = fname;
    inflater = (LayoutInflater) activity
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

}

public int getCount() {
    return filepath.length;

}

public Object getItem(int position) {
    return position;
}

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


public View getView(int position, View convertView, ViewGroup parent) {
    View vi = convertView;
    if (convertView == null)
        vi = inflater.inflate(R.layout.gridview_item, null);
    // Locate the TextView in gridview_item.xml
    TextView text = (TextView) vi.findViewById(R.id.text);
    // Locate the ImageView in gridview_item.xml
     image = (ImageView) vi.findViewById(R.id.grid_image);

    // Set file name to the TextView followed by the position

    Picasso.with(parent.getContext()).load(filepath[position]).placeholder(R.drawable.rtrt).fit().centerCrop().into(image);

    // Decode the filepath with BitmapFactory followed by the position


    // Set the decoded bitmap into ImageView
  //  image.setImageBitmap(bmp);
    return vi;
}

Answer 1

如果你的图片路径是本地的那么你必须使用文件

File file = new File(filepath[position]);
 Picasso.with(activity).load(file).placeholder(R.drawable.rtrt).fit().centerCrop().into(image);