andorid后台根据用户权限配置前台菜单功能实现

项目需求，android显示的菜单要通过后台用户权限控制显示哪些菜单，前端通过接口请求菜单获取菜单Id集合然后显示相应的菜单。（获取菜单后可以在本地缓存下来，在没网的情况下依然可以显示。）

首先看看效果图



第一步：因为每个菜单的Id是固定不变的，在前端可以定义一个菜单实体类，如下：

//中队-受理业务分配
MenuBean menuBean2 = new MenuBean();
menuBean2.setMenuId(87);//菜单Id
menuBean2.setTabId(2);//该菜单所属页面
menuBean2.setTitle(BaseApplication.context.getString(R.string.tal1_act1));//菜单标题
menuBean2.setDrawbleId(R.drawable.icon_divider);//菜单图片
menuBean2.setIntent(new Intent(BaseApplication.context, TaskToMemberActivity.class));//点击菜单跳转到的页面
menus.add(menuBean2);

//中队 --任务处置审批（中队反馈确认）
MenuBean menuBean9 = new MenuBean();
menuBean9.setMenuId(86);
menuBean9.setTabId(2);
menuBean9.setTitle(BaseApplication.context.getString(R.string.tal2_act6));
menuBean9.setDrawbleId(R.drawable.icon_rwcz_confirm);
Intent submitIntent = new Intent(BaseApplication.context, TaskHandlerActivity.class);
submitIntent.putExtra("url", URLTool.QueryWorkTaskManageZDCZList);
submitIntent.putExtra("title", BaseApplication.context.getString(R.string.tal2_act6));
menuBean9.setIntent(submitIntent);
menus.add(menuBean9);

//中队 --巡检问题确认
MenuBean menuBean126 = new MenuBean();
menuBean126.setMenuId(126);
menuBean126.setTabId(2);
menuBean126.setTitle(BaseApplication.context.getString(R.string.tal2_act7));
menuBean126.setDrawbleId(R.drawable.icon_zdsp);
menuBean126.setIntent(new Intent(BaseApplication.context, ZDConfirmActivity.class));
menus.add(menuBean126);

第二步：登录完成之后请求角色菜单集合，然后根据角色菜单Id集合显示菜单

/**
* 获取每个tab下的菜单
*
* @param tabID 页面ID
* @param roleMenuResult 后台返回的角色菜单ID集合
* @return
*/
public static List<MenuBean> getMenu(RoleMenuResult roleMenuResult,int tabID) {
List<MenuBean> menuResult = new ArrayList<>();
menuResult.clear();
if(roleMenuResult==null){
return menuResult;
}
List<RoleMenu> menuList = roleMenuResult.getDt();
if(menuList==null){
return null;
}

for (int i = 0; i < menus.size(); i++) {
MenuBean localMenu = menus.get(i);
if(localMenu.getTabId()!=tabID){
continue;
}
for (int j = 0; j < menuList.size(); j++) {
RoleMenu roleMenu = menuList.get(j);
if(localMenu.getMenuId()==roleMenu.getMENUID()){
if(!menuResult.contains(localMenu)){
menuResult.add(menus.get(i));
}
}
}
}
return menuResult;
}

第三步：使用gradView显示菜单：

menus = MenuUtils.getMenu(MainActivity.roleMenuResult, 3);

本地默认的菜单可以在本地定义好，然后添加到集合中。
menus.addAll(defaultMenus);
adapter = new RoleMenuAdaper(menus);
gridView.setAdapter(adapter);
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = (Intent) menus.get(position).getIntent();
if (intent == null) {
//现场取证
if (menus.get(position).getTitle().equals(mActivity.getString(R.string.quzheng))) {
popupWindow.showAtLocation(ll_main, Gravity.BOTTOM, 0, 0);
CommonUtils.makeWindowDark(mActivity);
} else {
ToastUtils.showShort(mActivity, "该功能暂未开放");
}
return;
}

}

这些操作可以放到菜单工具类中，方便操作,可参考下面的代码片段

package com.yingde.onlinelaw2.utils;

import android.app.Activity;
import android.content.Intent;

import com.yingde.onlinelaw2.R;
import com.yingde.onlinelaw2.activitys.inspect.InspectActivity;
import com.yingde.onlinelaw2.activitys.leaderConfirm.LeaderConfirmActivity;
import com.yingde.onlinelaw2.activitys.taskToZD.TaskToZDListActivity;
import com.yingde.onlinelaw2.activitys.problem.ProblemAddActivity;
import com.yingde.onlinelaw2.activitys.search.SearchInspectActivity;
import com.yingde.onlinelaw2.activitys.search.SearchProblemActivity;
import com.yingde.onlinelaw2.activitys.search.SearchTaskActivity;
import com.yingde.onlinelaw2.activitys.serviceConfirm.ServiceConfirmActivity;
import com.yingde.onlinelaw2.activitys.simplecasess.SimplenessActivityOne;
import com.yingde.onlinelaw2.activitys.teamLeader.TaskToMemberActivity;
import com.yingde.onlinelaw2.activitys.teamLeader.ZDConfirmActivity;
import com.yingde.onlinelaw2.activitys.teamMember.TaskHandlerActivity;
import com.yingde.onlinelaw2.base.BaseApplication;
import com.yingde.onlinelaw2.bean.MenuBean;
import com.yingde.onlinelaw2.bean.RoleMenu;
import com.yingde.onlinelaw2.bean.RoleMenuResult;
import com.yingde.onlinelaw2.utils.http.URLTool;

import java.util.ArrayList;
import java.util.List;

/**
* Created by Administrator on 2016/11/14.
* 菜单
*/
public class MenuUtils {
private static List menus = new ArrayList<>();

static {

//中队-受理业务分配
MenuBean menuBean2 = new MenuBean();
menuBean2.setMenuId(87);//菜单Id
menuBean2.setTabId(2);//该菜单所属页面
menuBean2.setTitle(BaseApplication.context.getString(R.string.tal1_act1));//菜单标题
menuBean2.setDrawbleId(R.drawable.icon_divider);//菜单图片
menuBean2.setIntent(new Intent(BaseApplication.context, TaskToMemberActivity.class));//点击菜单跳转到的页面
menus.add(menuBean2);

//中队 --任务处置审批（中队反馈确认）
MenuBean menuBean9 = new MenuBean();
menuBean9.setMenuId(86);
menuBean9.setTabId(2);
menuBean9.setTitle(BaseApplication.context.getString(R.string.tal2_act6));
menuBean9.setDrawbleId(R.drawable.icon_rwcz_confirm);
Intent submitIntent = new Intent(BaseApplication.context, TaskHandlerActivity.class);
submitIntent.putExtra("url", URLTool.QueryWorkTaskManageZDCZList);
submitIntent.putExtra("title", BaseApplication.context.getString(R.string.tal2_act6));
menuBean9.setIntent(submitIntent);
menus.add(menuBean9);

//中队 --巡检问题确认
MenuBean menuBean126 = new MenuBean();
menuBean126.setMenuId(126);
menuBean126.setTabId(2);
menuBean126.setTitle(BaseApplication.context.getString(R.string.tal2_act7));
menuBean126.setDrawbleId(R.drawable.icon_zdsp);
menuBean126.setIntent(new Intent(BaseApplication.context, ZDConfirmActivity.class));
menus.add(menuBean126);

//领导审批 ---处置结果审批
MenuBean menuBean3 = new MenuBean();
menuBean3.setMenuId(88);
menuBean3.setTabId(2);
menuBean3.setTitle("处置结果审批");
menuBean3.setDrawbleId(R.drawable.icon_leader_confirm);
Intent intent3 = new Intent(BaseApplication.context, LeaderConfirmActivity.class);
intent3.putExtra("position",0);
menuBean3.setIntent(intent3);
menus.add(menuBean3);
//领导审批 --- 处置意见审批
MenuBean menuBean4 = new MenuBean();
menuBean4.setMenuId(74);
menuBean4.setTabId(2);
menuBean4.setTitle("处置意见审批");
menuBean4.setDrawbleId(R.drawable.icon_leadercomfirm);
Intent intent4 = new Intent(new Intent(BaseApplication.context, LeaderConfirmActivity.class));
intent4.putExtra("position",1);
menuBean4.setIntent(intent4);
menus.add(menuBean4);

//勤务审批  --- 预处理
MenuBean menuBean5 = new MenuBean();
menuBean5.setMenuId(80);
menuBean5.setTabId(2);
menuBean5.setTitle("预处理");
menuBean5.setDrawbleId(R.drawable.icon_ycl);
Intent intent5 = new Intent(BaseApplication.context, ServiceConfirmActivity.class);
intent5.putExtra("position",0);
menuBean5.setIntent(intent5);
menus.add(menuBean5);

//勤务审批  --- 处置结果审批
MenuBean menuBean6 = new MenuBean();
menuBean6.setMenuId(84);
menuBean6.setTabId(2);
menuBean6.setTitle("处置结果审批");
menuBean6.setDrawbleId(R.drawable.icon_check);
Intent intent6 = new Intent(BaseApplication.context, ServiceConfirmActivity.class);
intent6.putExtra("position",1);
menuBean6.setIntent(intent6);
menus.add(menuBean6);

//勤务审批  --- 任务处置反馈非当事人 id=89
MenuBean menuBean7 = new MenuBean();
menuBean7.setMenuId(89);
menuBean7.setTabId(2);
menuBean7.setTitle("任务处置反馈");
menuBean7.setDrawbleId(R.drawable.icon_check_result);
Intent intnet7  = new Intent(BaseApplication.context, ServiceConfirmActivity.class);
intnet7.putExtra("position",2);
menuBean7.setIntent(intnet7);
menus.add(menuBean7);

//任务下达中队
MenuBean menuBean8 = new MenuBean();
menuBean8.setMenuId(82);
menuBean8.setTabId(2);
menuBean8.setTitle("任务下达中队");
menuBean8.setDrawbleId(R.drawable.icon_task_zd);
Intent intent8 = new Intent(BaseApplication.context, ServiceConfirmActivity.class);
intent8.putExtra("position",3);
menuBean8.setIntent(intent8);
menus.add(menuBean8);

//简易案件
MenuBean menuBean10 = new MenuBean();
menuBean10.setMenuId(26);
menuBean10.setTabId(3);
menuBean10.setTitle(BaseApplication.context.getString(R.string.tal2_act1));
menuBean10.setDrawbleId(R.drawable.icon_simple_case);
menuBean10.setIntent(new Intent(BaseApplication.context, SimplenessActivityOne.class));
menus.add(menuBean10);

//执法检查记录
MenuBean menuBean11 = new MenuBean();
menuBean11.setMenuId(72);
menuBean11.setTabId(3);
menuBean11.setTitle(BaseApplication.context.getString(R.string.tal2_act2));
menuBean11.setDrawbleId(R.drawable.icon_polices);
menuBean11.setIntent(new Intent(BaseApplication.context, InspectActivity.class));
menus.add(menuBean11);

//问题登记
MenuBean menuBean12 = new MenuBean();
menuBean12.setMenuId(71);
menuBean12.setTabId(3);
menuBean12.setTitle(BaseApplication.context.getString(R.string.tal2_act3));
menuBean12.setDrawbleId(R.drawable.icon_register);
menuBean12.setIntent(new Intent(BaseApplication.context, ProblemAddActivity.class));
menus.add(menuBean12);

// 队员--处置结果填写
MenuBean menuBean13 = new MenuBean();
menuBean13.setMenuId(85);
menuBean13.setTabId(3);
menuBean13.setTitle(BaseApplication.context.getString(R.string.tal2_act5));
menuBean13.setDrawbleId(R.drawable.icon_czjgtx);
Intent handlerIntent = new Intent(BaseApplication.context, TaskHandlerActivity.class);
handlerIntent.putExtra("url", URLTool.workTaskManageDYCZList);
handlerIntent.putExtra("title", BaseApplication.context.getString(R.string.tal2_act5));
menuBean13.setIntent(handlerIntent);
menus.add(menuBean13);

//投诉举报查询
MenuBean menuBean14 = new MenuBean();
menuBean14.setMenuId(75);
menuBean14.setTabId(4);
menuBean14.setTitle("问题登记查询");
menuBean14.setDrawbleId(R.drawable.icon_pro_search);
Intent intent14 = new Intent(BaseApplication.context, SearchProblemActivity.class);
intent14.putExtra("action","search");
intent14.putExtra("title","问题登记查询");
menuBean14.setIntent(intent14);
menus.add(menuBean14);

//检查记录查询
MenuBean menuBean15 = new MenuBean();
menuBean15.setMenuId(76);
menuBean15.setTabId(4);
menuBean15.setTitle("检查记录查询");
menuBean15.setDrawbleId(R.drawable.icon_inpect_search);
Intent intent7 = new Intent(BaseApplication.context, SearchInspectActivity.class);
intent7.putExtra("action","search");
intent7.putExtra("title","检查记录查询");
menuBean15.setIntent(intent7);
menus.add(menuBean15);

//问题登记
MenuBean menuBean16 = new MenuBean();
menuBean16.setMenuId(83);
menuBean16.setTabId(4);
menuBean16.setTitle("任务分派查询");
menuBean16.setDrawbleId(R.drawable.icon_task_search);
menuBean16.setIntent(new Intent(BaseApplication.context, SearchTaskActivity.class));
menus.add(menuBean16);
}

/**
* 获取每个tab下的菜单
*
* @param tabID 页面ID
* @param roleMenuResult 后台返回的角色菜单ID集合
* @return
*/
public static List getMenu(RoleMenuResult roleMenuResult,int tabID) {
List menuResult = new ArrayList<>();
menuResult.clear();
if(roleMenuResult==null){
return menuResult;
}
List menuList = roleMenuResult.getDt();
if(menuList==null){
return null;
}

for (int i = 0; i < menus.size(); i++) {
MenuBean localMenu = menus.get(i);
if(localMenu.getTabId()!=tabID){
continue;
}
for (int j = 0; j < menuList.size(); j++) {
RoleMenu roleMenu = menuList.get(j);
if(localMenu.getMenuId()==roleMenu.getMENUID()){
if(!menuResult.contains(localMenu)){
menuResult.add(menus.get(i));
}
}
}
}
return menuResult;
}

/**
* 根据菜单id获取intent
* @param menuID
* @return
*/
public static Intent getIntent(int menuID) {
for (int i = 0; i < menus.size(); i++) {
if (menus.get(i).getMenuId() == menuID) {
return menus.get(i).getIntent();
}
}
return null;
}

/**
* 根据id获取menu
*/
public static MenuBean getMenu(int menuId){

for (int i = 0; i < menus.size(); i++) {
if (menus.get(i).getMenuId() == menuId) {
return menus.get(i);
}
}
return null;
}

public static String replaceMenuStr(String menuStr) {
String menuString = menuStr;
switch (menuStr) {
case "任务处置结果反馈非当事人":
menuString = "处置结果反馈";
break;
case "任务下达队员":
menuString = "受理业务分派";
break;
case "任务处置结果反馈":
menuString = "处置结果填写";
break;
}
return menuString;
}

public static Intent getMenuIntent(Activity mActivity, String menuStr) {
Intent intent = null;
switch (menuStr) {
case "预处理":
case "处置结果审批":
case "任务处置结果反馈非当事人":
intent = new Intent(mActivity, ServiceConfirmActivity.class);
break;
case "任务下达中队":
new Intent(mActivity, TaskToZDListActivity.class);
break;
//领导审批
case "处置意见审批":
new Intent(mActivity, LeaderConfirmActivity.class);
break;
}
return intent;
}

}