国内html5视频网站建设,淘宝seo排名优化软件,sem,高质量视频素材网站最近在开发项目中遇到了实现类似淘宝首页的需求#xff0c;使用listView可以解决#xff0c;在此记录一下。 实现步骤#xff1a; 重写 getViewTypeCount() – 返回你有多少个不同的布局重写 getItemViewType(int) – 由position返回view type id根据view item的类型#x… 最近在开发项目中遇到了实现类似淘宝首页的需求使用listView可以解决在此记录一下。 实现步骤 重写 getViewTypeCount() – 返回你有多少个不同的布局重写 getItemViewType(int) – 由position返回view type id根据view item的类型在getView中创建正确的convertView下面是代码示例 Activity: HomeItem jchdItem new HomeItem();
jchdItem.setItemType(ItemType.JCHD);
homeItems.add(jchdItem);
HomeItem yhhdItem new HomeItem();
yhhdItem.setItemType(ItemType.YHHD_LIST);
ListYhhdBean yhhdLists new ArrayList();
for (int i 0; i privilege.size(); i) {JSONObject object2 privilege.getJSONObject(i);YhhdBean yhhdList new YhhdBean();yhhdLists.add(yhhdList);
}
yhhdItem.setYhhdLists(yhhdLists);
homeItems.add(yhhdItem);
adapter new HomeAdapter(getActivity(), homeItems);
lv_home_list.setAdapter(adapter); layout: ListViewandroid:idid/lv_home_listandroid:layout_widthmatch_parentandroid:layout_height0dpandroid:layout_weight1android:dividernullandroid:overScrollModeneverandroid:scrollbarsnone / Adapter public class HomeAdapter extends BaseAdapter {private Context context;private ListHomeItem list;private final static int JCHD 3;private final static int YHHD_LIST 4;public HomeAdapter(Context context, ListHomeItem list) {this.context context;this.list list;}Overridepublic int getCount() {return list ! null ? list.size() : 0;}Overridepublic Object getItem(int i) {return list null ? null : list.get(i);}Overridepublic long getItemId(int i) {return i;}Overridepublic View getView(int i, View view, ViewGroup viewGroup) {HomeItem homeItem list.get(i);LayoutInflater inflater LayoutInflater.from(context);YhhdHodlder yhhdHodlder;YhhdListHolder yhhdListHolder;int type homeItem.getItemType().getValue();switch (type) {case JCHD:if (view null) {view inflater.inflate(R.layout.view_yhhd, null);yhhdHodlder new YhhdHodlder(context, view, 精彩);view.setTag(yhhdHodlder);} else {yhhdHodlder (YhhdHodlder) view.getTag();}break;case YHHD_LIST:if (view null) {view inflater.inflate(R.layout.view_main_yhhd_list, null);yhhdListHolder new YhhdListHolder(context, view);view.setTag(yhhdListHolder);} else {yhhdListHolder (YhhdListHolder) view.getTag();}yhhdListHolder.initView(homeItem);break;}return view;}Overridepublic int getItemViewType(int position) {if (list ! null position list.size()) {return list.get(position).getItemType().getValue();}return super.getItemViewType(position);}Overridepublic int getViewTypeCount() {return 2;}
} HomeItem: public class HomeItem {private ItemType itemType;private ListYhhdBean yhhdLists;public ItemType getItemType() {return itemType;}public void setItemType(ItemType itemType) {this.itemType itemType;}public ListYhhdBean getYhhdLists() {return yhhdLists;}public void setYhhdLists(ListYhhdBean yhhdLists) {this.yhhdLists yhhdLists;}} ItemType: public enum ItemType {JCHD(3), YHHD_LIST(4); public int getValue() {return value;}private int value;ItemType(int value) {this.value value;}
} 转载于:https://www.cnblogs.com/chhom/p/8320667.html
