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我有一点问题吗？嗯,让我先说明我要完成什么.
我有一个微调器从存储的数组中拉出字符串.
像这样,你不需要阅读它：
我有一点问题吗？嗯,让我先说明我要完成什么.
我有一个微调器从存储的数组中拉出字符串.
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);
简单而又足够.我想添加一个图像到微调器..单选按钮是不必要的.所以微调器应该弹出并列出一个列表：
TEXT *IMAGE* TEXT2 *IMAGE* TEXT3 *IMAGE*
到目前为止,我有一个自定义的SimpleAdapter.
这是问题！ ：文本出现,但不是图像.代理代码：
public class stageadapter extends SimpleAdapter {
private Context localContext;
private ArrayList> localList;
public stageadapter(Context context,ArrayList> 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,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;
}
}
我打算使用switch语句来为每个名称设置不同的图像.但是我停在这里,直到我能看到任何图像来显示.
我打电话
ArrayList> list = new ArrayList>();
HashMap map = new HashMap();
map.put("Name","One");
map.put("Icon",R.drawable.icon);
list.add(map);
map = new HashMap();
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(),R.layout.stagerow,new String[] {
"Name","Icon"},new int[] {
R.id.stage_name,R.id.stage_icon });
mStageSpin.setAdapter(adapter);
对我的回答是在评论中
解决方法
删除以下行 – 其混淆您的适配器：
healthadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestwindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
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,"Two");
map.put("Icon",R.drawable.icon);
list.add(map);
Spinner spin = (Spinner) findViewById(R.id.spin);
myAdapter adapter = new myAdapter(getApplicationContext(),R.layout.list_layout,new String[] { "Name","Icon" },new int[] { R.id.name,R.id.icon });
spin.setAdapter(adapter);
}
private class myAdapter extends SimpleAdapter {
public myAdapter(Context context,List<? extends Map<String,?>> data,int[] to) {
super(context,data,to);
}
@Override
public View getView(int position,ViewGroup parent) {
if (convertView == null) {
convertView = getLayoutInflater().inflate(R.layout.list_layout,null);
}
HashMap<String,Object> data = (HashMap<String,Object>) getItem(position);
((TextView) convertView.findViewById(R.id.name))
.setText((String) data.get("Name"));
((ImageView) convertView.findViewById(R.id.icon))
.setimageResource(R.drawable.icon);
return convertView;
}
}