packagecom.example.lenovo.myapplication.baseadapter;
importandroid.content.Context;
importandroid.view.View;
importandroid.view.ViewGroup;
importandroid.widget.BaseAdapter;
importjava.util.List;
/**
* Created by Lenovo on 2017/11/10.
*/
public abstract classCommonAdapterextendsBaseAdapter {
publicContextcontext;
publicListlistData;
private intlayoutId;
publicCommonAdapter(Context context, List listData,intlayoutId) {
super();
this.context= context;
this.listData= listData;
this.layoutId= layoutId;
}
@Override
public intgetCount() {
return this.listData==null?0:this.listData.size();
}
@Override
publicObject getItem(intposition) {
return this.listData.get(position);
}
@Override
public longgetItemId(intposition) {
returnposition;
}
@Override
publicView getView(intposition, View convertView, ViewGroup parent) {
CommonViewHolder holder = CommonViewHolder.getViewHolder(this.context, convertView, parent,this.layoutId);
this.fillData(holder, position);
returnholder.getMConvertView();
}
protected abstract voidfillData(CommonViewHolder holder,intposition);
}
====================================================================================================================================================
packagecom.example.lenovo.myapplication.baseadapter;
importandroid.content.Context;
importandroid.util.SparseArray;
importandroid.view.LayoutInflater;
importandroid.view.View;
importandroid.view.ViewGroup;
/**
* Created by Lenovo on 2017/11/10.
*/
public classCommonViewHolder {
privateSparseArraymViews;
privateViewmConvertView;
publicCommonViewHolder(Context context, ViewGroup parent,intlayoutId) {
mViews=newSparseArray<>();
mConvertView= LayoutInflater.from(context).inflate(layoutId, parent,false);
mConvertView.setTag(this);
}
public staticCommonViewHolder getViewHolder(Context context, View convertView, ViewGroup parent,intlayoutId) {
if(convertView ==null)
return newCommonViewHolder(context, parent, layoutId);
return(CommonViewHolder) convertView.getTag();
}
@SuppressWarnings("unchecked")
publicTgetView(intviewId) {
View item =mViews.get(viewId);
if(item ==null) {
item =mConvertView.findViewById(viewId);
mViews.put(viewId, item);
}
return(T) item;
}
publicView getMConvertView() {
returnmConvertView;
}
}
