我搜索了整个答案但没有答案来回答我的问题。我有存储在parse.com上的数据。我试图检索一个图像和一个字符串,并将其放置在列表视图中。我有一个适配器,我一直用来抓取文本,但不确定如何处理图像。有一条线我特别需要帮助。使用阵列适配器从列表视图中检索parse.com中的图像
public class AppetizerAdapter extends ArrayAdapter {
protected Context mContext;
protected List mAppetizer;
public AppetizerAdapter(Context context, List appetizer) {
super(context, R.layout.custom_appetizers, appetizer);
mContext = context;
mAppetizer = appetizer;
}
// inflates each row of the app
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// initialize view holder
ViewHolder holder;
if (convertView == null) { // If no items in the view to be displayed
convertView = LayoutInflater.from(mContext).inflate(
R.layout.custom_appetizers, null);
// initialize the views
holder = new ViewHolder(); // creates a new view
holder.aPPetizer = (TextView) convertView // calls the view
.findViewById(R.id.appetizer);
holder = new ViewHolder();
holder.appetizerImage = (ImageView) convertView
.findViewById(R.id.appetizerImage);
// call the view and setTag to the parameter (holder)
convertView.setTag(holder);
} else { // if view is previously displayed
// initialize holder
holder = (ViewHolder) convertView.getTag();
}
// get the position of the row
ParseObject appetizerObject = (ParseObject) mAppetizer.get(position);
// title
String appetizers = appetizerObject.getString("appetizers");
holder.aPPetizer.setText(appetizers);
// image
???
holder.appetizerImage.setImageResource();
return convertView; // return the view
}
public static class ViewHolder {
// declaration of variables
TextView aPPetizer;
ImageView appetizerImage;
}
我有一个问题的部分是: //标题 字符串开胃= appetizerObject.getString( “开胃”); < - 允许我将字符串存储在“开胃菜”栏 - 这是一个字符串,但对于图像,我不知道如何对其进行编码。
任何帮助将不胜感激。预先感谢您
你可以让它显示图像的URL –
你能告诉我怎么做吗? – LizG
如何将项目添加到数据库?通过你的手机?或者手动通过phpMyAdmin? –