android ExpandableListView 為Group與Child添加菜單

為ExpandableListVIew的Group與Child添加不同菜單有兩種方式：

1、通過ShowDialog

這種方式是通過適配器為VIew添加Tag然後在ExpandableListView的OnItemLongClickListener擷取View的Tag來判斷是Group或Child，然後彈出不同的菜單對話方塊。

代碼如下：

1. @Override  
2.     public View getChildView(final int arg0, final int arg1, boolean arg2, View view,  
3.             ViewGroup arg4) {  
4.         if(view==null){  
5.             view = inflater.inflate(R.layout.team_layout_main_list_item, null);  
6.         }  
7.         TextView textView = (TextView) view.findViewById(R.id.team_main_list_username);  
8.         ImageView imageView = (ImageView) view.findViewById(R.id.team_main_list_head);  
9.         imageView.setImageResource(PrortaitUtils.conversionIdToRes(((UserInfo)getChild(arg0, arg1)).getPortrait()));  
10.         view.setTag(R.id.team_singlechat_id_send, arg0);  
11.         view.setTag(R.id.team_singlechat_id_close, arg1);       //備忘1  
12.         textView.setText(((UserInfo)getChild(arg0, arg1)).getUsername());  
13.         textView.setTextColor(Color.BLACK);  
14.         view.setBackgroundColor(Color.rgb(247, 243, 247));  
15.         view.setBackgroundResource(R.drawable.team_item_bg_selector);  
16.         return view;  
17.     }  

 

1. @Override  
2.     public View getGroupView(int arg0, boolean arg1, View groupView, ViewGroup arg3) {  
3.         if(groupView == null){  
4.             groupView = inflater.inflate(R.layout.team_layout_main_list_group, null);  
5.         }  
6.         TextView groupTextView = (TextView) groupView.findViewById(R.id.team_main_list_teamname);  
7.         ImageView groupImageView = (ImageView) groupView.findViewById(R.id.team_main_list_into);  
8.         groupImageView.setImageResource(R.drawable.team_into1);  
9.         if(arg1){  
10.             groupImageView.setImageResource(R.drawable.team_into2);  
11.         }  
12.         groupView.setTag(R.id.team_singlechat_id_send, arg0);  
13.         groupView.setTag(R.id.team_singlechat_id_close, -1);        //備忘2  
14.         groupTextView.setText(getGroup(arg0).toString());  
15.         groupTextView.setTextColor(Color.BLACK);  
16.         return groupView;  
17.     }  

 

1. //長按條目，包括group和child  
2.     onLineList.setOnItemLongClickListener(new OnItemLongClickListener() {  
3.   
4.         @Override  
5.         public boolean onItemLongClick(AdapterView<?> arg0, final View arg1,  
6.                 int arg2, long arg3) {  
7.             longClickListIteam(arg1);  
8.             return true;  
9.         }  
10.     });  
11.      /** 
12.       * 長按list中的某一個條目 
13.       */  
14.      private void longClickListIteam(final View arg1) {  
15.             final int groupPos = (Integer)arg1.getTag(R.id.team_singlechat_id_send);      
16.             final int childPos = (Integer)arg1.getTag(R.id.team_singlechat_id_close);  
17.             Log.i(TAG,"groupPos:"+groupPos+",childPos:"+childPos);  
18.             if(childPos == -1){         //如果得到child位置的值為-1，則是操作group  
19.                 Log.i(TAG,"操作group組件");  
20.                 updateTeam(arg1);  
21.             }else{  
22.                 Log.i(TAG,"操作child組件");     //否則，操作child  
23.                 final List<UserInfo> users = getTeamUser(groupPos);  
24.                 //判斷長按的是否為自己，如果是不是自己，則快顯視窗操作，如果是自己，則查看資料  
25.                 if(DicqConstant.DEFAULTMAC.equalsIgnoreCase(users.get(childPos).getUsermac())){  
26.                     Intent it = new Intent(TeamMainActivity.this,UserInfoActivity.class);  
27.                     it.putExtra("isMyself", true);  
28.                     TeamMainActivity.this.startActivity(it);  
29.                 }else{  
30.                     builder = new AlertDialog.Builder(TeamMainActivity.this);  
31.                     builder.setTitle("操作使用者");  
32.                     builder.setItems(new String[]{"查看資料","查看共用","移至分組","使用權限設定"}, new DialogInterface.OnClickListener() {  
33.                         public void onClick(DialogInterface dialog, int which) {  
34.                             if(which == 0){  
35.                                 Intent it = new Intent(TeamMainActivity.this,UserInfoActivity.class);  
36.                                 it.putExtra("isMyself", false);  
37.                                 it.putExtra("userinfo", users.get(childPos));  
38.                                 TeamMainActivity.this.startActivity(it);  
39.                             }else if(which == 1){  
40.                                 Intent it1 = new Intent(TeamMainActivity.this,FileShareActivity.class);  
41.                                 it1.putExtra("userinfo",users.get(childPos));  
42.                                 TeamMainActivity.this.startActivity(it1);  
43.                             }else if(which == 2){  
44.                                 updateChild(groupPos,childPos);  
45.                             }else if(which == 3){  
46.                                 updateUserPrivilege(groupPos,childPos);  
47.                             }  
48.                         }  
49.                     }).show();  
50.                 }  
51.   
52.             }  
53.         }  

第二種方式、是能ContextMenu。

這種方式是通過把ExpandableListContextMenuInfo的Type來判斷是Group或Child，然後建立不同的菜單

代碼如下：

1. @Override
2.     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
3.             ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) menuInfo;
4.             int type = ExpandableListView.getPackedPositionType(info.packedPosition); 
5.             int group = ExpandableListView.getPackedPositionGroup(info.packedPosition); 
6.             if(type == ExpandableListView.PACKED_POSITION_TYPE_CHILD && group!=0){
7.                     menu.setHeaderTitle("Sample menu");
8.                     menu.add(0, 0, 0, R.string.expandable_list_sample_action);
9.             }
10.     }