GridView中item高度自适应
item高度自适应
public class MyAdapter extends BaseAdapter {
GridView mGv;
public static int ROW_NUMBER = 5;
public MyAdapter (GridView gv, Context mContext, ArrayList<String> list) {
this.context = mContext;
this.mGv = gv;
lstDate = list;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
convertView = LayoutInflater.from(context).inflate(R.layout.item, null);
//高度计算
AbsListView.LayoutParams param = new AbsListView.LayoutParams(
android.view.ViewGroup.LayoutParams.FILL_PARENT,
mGv.getHeight()/ROW_NUMBER);
convertView.setLayoutParams(param);
return convertView;
}
关键点 通过获取GridView 的高度来计算每个item的高度。缺点:个人认为,实际上GridView 重绘了一遍(数据量大时影响性能),第一遍的时候GridView高度为0,item也为0,求证!! 如果设置了ViewHolder 会使第一个item缺失。
mGv.getHeight()/ROW_NUMBER