我在项目中覆盖了getItemViewType()
方法,以指示要用于列表中的项目(R.layout.listview_item_product_complete
或R.layout.listview_item_product_inprocess
)的视图
我知道此函数返回的值必须比可能的视图数(在我的情况下为0或1)少0到1之间。
我怎么知道哪个布局是0,哪个是1?我假设我创建的第一个布局将为0,后一个布局为1,但是我想返回一个变量,以便此值具有灵活性...
即
@Override
public int getItemViewType(int position) {
// Define a way to determine which layout to use
if(//test for inprocess){
return INPROCESS_TYPE_INDEX;
} else {
return COMPLETE_TYPE_INDEX;
}
}
我可以参考什么/在哪里定义
COMPLETE_TYPE_INDEX
和INPROCESS_TYPE_INDEX
的值? 最佳答案
我需要知道如何将COMPLETE_TYPE_INDEX定义为1或0。这看起来很琐碎!
老实说,COMPLETE_TYPE_INDEX
为0和INPROCESS_TYPE_INDEX
为1无关紧要,反之亦然。但是您将它们定义为类变量,在这种情况下,它们也可以是static
和final
:
public class MyAdapter ... {
private static final int COMPLETE_TYPE_INDEX = 0;
private static final int INPROCESS_TYPE_INDEX = 1;
private static final int NUMBER_OF_LAYOUTS = 2;
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
if(getItemViewType(position) == COMPLETE_TYPE_INDEX)
convertView = mInflater.inflate(R.layout.listview_item_product_complete, null);
else // must be INPROCESS_TYPE_INDEX
convertView = mInflater.inflate(R.layout.listview_item_product_inprocess, null);
// etc, etc...
// Depending on what is different in your layouts,
// you may need update your ViewHolder and more of getView()
}
// Load data that changes on each row, might need to check index type here too
}
@Override
public int getItemViewType(int position) {
Order thisOrder = (Order) myOrders.getOrderList().get(position);
if(thisOrder.getOrderStatus().equals("Complete")) return COMPLETE_TYPE_INDEX;
else return INCOMPLETE_TYPE_INDEX;
}
@Override
public int getViewTypeCount() {
return NUMBER_OF_LAYOUTS;
}
}