我有一个小问题。好吧,让我首先说明我想要实现的目标。
我有一个旋转器,可以从存储的数组中提取字符串。
就像这样,你不需要阅读它:
ArrayAdapter<?> healthadapter = ArrayAdapter.createFromResource(this, R.array.health, android.R.layout.simple_spinner_item);
mHealthSpin = (Spinner) findViewById(R.id.health_spin);
healthadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mHealthSpin.setAdapter(healthadapter);
简单而且几乎足够了。我想添加图像到Spinner.
the RadioButton
没有必要。所以Spinner
应该弹出并有一个列表:
TEXT *IMAGE*
TEXT2 *IMAGE*
TEXT3 *IMAGE*
到目前为止我已经有了一个习惯SimpleAdapter.
问题就在这里!! :
文本出现但图像不出现。
这是代码:
public class stageadapter extends SimpleAdapter {
private Context localContext;
private ArrayList<HashMap<String, Object>> localList;
public stageadapter(Context context, ArrayList<HashMap<String, Object>> list, int resource, String[] from, int[] to) {
super(context, list, resource, from, to);
localContext = context;
localList = list;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (null == convertView) {
LayoutInflater inflater = (LayoutInflater) localContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.stagerow, null);
}
TextView name = (TextView) convertView.findViewById(R.id.stage_name);
name.setText((String) localList.get(position).get("Name"));
ImageView icon = (ImageView) convertView.findViewById(R.id.stage_icon);
icon.setImageResource(R.drawable.icon);
return convertView;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
if (null == convertView) {
LayoutInflater inflater = (LayoutInflater) localContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.stagerow, null);
}
TextView name = (TextView) convertView.findViewById(R.id.stage_name);
name.setText((String) localList.get(position).get("Name"));
ImageView icon = (ImageView) convertView.findViewById(R.id.stage_icon);
icon.setImageResource(R.drawable.icon);
return convertView;
}
}
我计划使用一个switch
语句为每个名称设置不同的图像。然而我在这里停下来,直到我能得到任何图像来显示。
我如何打电话:
ArrayList<HashMap<String, Object>> list = new ArrayList<HashMap<String, Object>>();
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("Name", "One");
map.put("Icon", R.drawable.icon);
list.add(map);
map = new HashMap<String, Object>();
map.put("Name", "Two");
map.put("Icon", R.drawable.icon);
list.add(map);
mStageSpin = (Spinner) findViewById(R.id.stage_spin);
stageadapter adapter = new stageadapter(getApplicationContext(), list, R.layout.stagerow, new String[]{"Name", "Icon"}, new int[]{R.id.stage_name, R.id.stage_icon});
mStageSpin.setAdapter(adapter);
我的答案在评论中。