popupwindow 的二级联动菜单、ListView形式菜单、GridView形式菜单的Util

package izheer.com.utils; import android.content.Context; import android.graphics.drawable.BitmapDrawable; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.FrameLayout; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.PopupWindow; import java.util.List; import izheer.com.popupwindowutil.R; /** * 二级菜单 popWindow * Created by Administrator on 2016/9/19. */ public abstract class DoubleListPopViewUtil { private ListView listView; private Context context; private View view;//在哪个view的下面 //数据源 private List<String> roots;//根目录的节点 private List<List<String>> sub_items;// 子目录节点 private PopupWindow areaPopupWindow; private RootListViewAdapter rootAdapter; private SubListViewAdapter subAdapter; public abstract void onRootListviewOnClick(View v, int position); public abstract void onSubListviewOnClick(View v, int position); public DoubleListPopViewUtil(Context context, View view, List<String> roots, List<List<String>> sub_items) { this.context = context; this.view = view; this.roots = roots; this.sub_items = sub_items; init(); } private void init(){ LayoutInflater inflater = LayoutInflater.from(context); final LinearLayout areaPopupLayout = (LinearLayout) inflater.inflate(R.layout.area_popupwindow_layout, null, false); final FrameLayout subAreaLayout = (FrameLayout) areaPopupLayout.findViewById(R.id.sub_popupwindow); FrameLayout rootAreaLayout = (FrameLayout) areaPopupLayout.findViewById(R.id.root_popupwindow); rootAreaLayout.setBackgroundResource(R.color.white); ListView rootAreaListView = (ListView) areaPopupLayout.findViewById(R.id.root_listview); ListView subAreaListView = (ListView) areaPopupLayout.findViewById(R.id.sub_listview); rootAdapter = new RootListViewAdapter(context); rootAdapter.setItems(roots); rootAreaListView.setAdapter(rootAdapter); subAdapter = new SubListViewAdapter(context, sub_items); subAreaListView.setAdapter(subAdapter); subAreaLayout.setVisibility(View.INVISIBLE);//弹出popupwindow时，二级菜单默认隐藏，当点击某项时，二级菜单再弹出 areaPopupWindow = new PopupWindow(areaPopupLayout, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT, true); areaPopupWindow.setBackgroundDrawable(new BitmapDrawable());//使点击popupwindow以外的区域时popupwindow自动消失须放在showAsDropDown之前 areaPopupWindow.showAsDropDown(view, -5, 5);// 参数:2：左右的偏移量，正数向左偏移，负数向右偏移，参数3：上下方向的偏移量，正数向下偏移，负数向上偏移 areaPopupWindow.update(); rootAreaListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { // TODO Auto-generated method stub rootAdapter.setSelectedPosition(position);//选中root某项时改变该ListView item的背景色 rootAdapter.notifyDataSetInvalidated(); subAdapter.setRoot_position(position); subAdapter.notifyDataSetChanged(); subAreaLayout.setVisibility(View.VISIBLE);//选中某个根节点时，使显示相应的子目录可见 onRootListviewOnClick(view,position); } }); subAreaListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick( AdapterView<?> parent, View view, int position, long id) { // TODO Auto-generated method stub onSubListviewOnClick(view,position); } }); } public void notifyDataSetChangedRoots(List<String> roots){ this.roots = roots; rootAdapter.setItems(roots); rootAdapter.notifyDataSetChanged(); } public void notifyDataSetChangedSubItem(List<List<String>> sub_items){ this.sub_items = sub_items; subAdapter.setItems(sub_items); subAdapter.notifyDataSetChanged(); } public void show(){ areaPopupWindow.showAsDropDown(view); } public void dismiss(){ if (areaPopupWindow != null && areaPopupWindow.isShowing()){ areaPopupWindow.dismiss(); } } }