我搜索了整個答案但沒有答案來回答我的問題。我有存儲在parse.com上的數據。我試圖檢索一個圖像和一個字符串,並將其放置在列表視圖中。我有一個適配器,我一直用來抓取文本,但不確定如何處理圖像。有一條線我特別需要幫助。使用陣列適配器從列表視圖中檢索parse.com中的圖像
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;
}
我有一個問題的部分是: //標題 字符串開胃= appetizerObject.getString( 「開胃」); < - 允許我將字符串存儲在「開胃菜」欄 - 這是一個字符串,但對於圖像,我不知道如何對其進行編碼。
任何幫助將不勝感激。預先感謝您
你可以讓它顯示圖像的URL –
你能告訴我怎麼做嗎? – LizG
如何將項目添加到數據庫?通過你的手機?或者手動通過phpMyAdmin? –