我需要一个 gridview 来显示 9 个项目。我写了一个自定义的baseadapter。
但是,我对getView
方法中的位置有疑问。看起来这个 gridview 错过了第 7 项。代码如下所示:
public class ImageAdapter extends BaseAdapter {
private Hashtable<String, LayoutDTO> menuHashtable = Global.menuHashtable;
private LayoutInflater mInflater;
public ImageAdapter(Context context) {
this.mInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
//Log.v("size........", Integer.toString(menuHashtable.size()));
return menuHashtable.size();
}
@Override
public Object getItem(int position) {
return menuHashtable.get(Integer.toString(position));
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutDTO lDto = menuHashtable.get(Integer.toString(position));
ViewHolder vHolder = new ViewHolder();
//if (convertView == null) {
if (lDto != null) {
String titleString = lDto.getTitle();
Bitmap iconBitmap = lDto.getIcon();
convertView = mInflater.inflate(R.layout.custombutton, null);
vHolder.icon = (ImageView) convertView
.findViewById(R.id.imageicon);
vHolder.icon.setImageBitmap(iconBitmap);
vHolder.text = (TextView) convertView
.findViewById(R.id.icontitle);
int index = titleString.indexOf("\u0026");
if (index != -1) {
String title1 = titleString.substring(0, index + 1).trim();
String title2 = titleString.substring(index + 1,
titleString.length()).trim();
vHolder.text.setLines(2);
String newtitle = title1 + "\n" + title2;
vHolder.text.setText(newtitle);
} else {
vHolder.text.setLines(2);
String newtitle = titleString + "\n" + " ";
vHolder.text.setText(newtitle);
}
convertView.setTag(vHolder);
}
else{
Log.v("null........",Integer.toString(position));
}
return convertView;
}
private class ViewHolder {
ImageView icon;
TextView text;
}
}
日志显示:
05-20 21:37:16.066: VERBOSE/title...........(158): Dining 0
05-20 21:37:16.105: VERBOSE/title...........(158): Dining 0
05-20 21:37:16.125: VERBOSE/title...........(158): Dining 0
05-20 21:37:16.135: VERBOSE/title...........(158): Dining 0
05-20 21:37:16.166: VERBOSE/title...........(158): Dining 0
05-20 21:37:16.185: VERBOSE/title...........(158): Entertainment 1
05-20 21:37:16.195: VERBOSE/title...........(158): Shopping 2
05-20 21:37:16.195: VERBOSE/title...........(158): Fashion 3
05-20 21:37:16.205: VERBOSE/title...........(158): Health & Beauty 4
05-20 21:37:16.215: VERBOSE/title...........(158): Supermarkets 5
05-20 21:37:16.226: VERBOSE/title...........(158): Auto Services 6
05-20 21:37:16.236: VERBOSE/title...........(158): Travel & Accommodation 8
05-20 21:37:16.316: VERBOSE/title...........(158): Dining 0
05-20 21:37:16.326: VERBOSE/title...........(158): Dining 0
05-20 21:37:16.336: VERBOSE/title...........(158): Dining 0
05-20 21:37:16.345: VERBOSE/title...........(158): Dining 0