Question

我有一个列表，我正在传递一个数组然后在html函数的回调中，我将输入的数据更新到列表中使用

.set

问题是，如果我执行.set，一旦没有任何反应，我会看到一个空白列表，我甚至看不到行，因为我初始化它们。但是在我之后再次设置。我看到了列表，我希望它如何更新

有时在第二集之后我仍然会看到一个白名单。

为什么这种奇怪的行为？我做错了什么？

列表定义：

 aligmentManagerClass = ((appContext) getApplication()).getAligmentManagerVar();

        aligmentManagerClass.initlizeBestPositionScreen(bestPositionCallback); // notifies the manager that we initlized best Position Screen

        final BestPositionListAdapter adapter = new BestPositionListAdapter(this, arrayOfBaseStations); // Create the adapter to convert the array to views

        mainListView = (ListView) findViewById(R.id.bestPosition_layout_list); // Attach the adapter to a ListView
        mainListView.setAdapter(adapter);

        mainListView.setOnItemClickListener(this); // sets an item click on the list

这是实际的列表回调：

//CALLBACL for When wifi Is turned on or Not
    bestPositionCallbackInterface bestPositionCallback = new bestPositionCallbackInterface() {

        @Override
        public void bestPositionCallbck (int i, BestPositionListModel modelData, int listSize) {
            //IMPLEMENT THE SERVICE CODE HERE >

            if (listDataGenerated == false) {
                for (int j = 0; j < listSize; j++) { // initlizes the aligment list Array List
                    arrayOfBaseStations.add(new BestPositionListModel("1", "1", "1", "1", "1", "1", "1", "1", "1", "1"));
                }
                listDataGenerated = true;
            }


            arrayOfBaseStations.set(i, new BestPositionListModel( // We need to set everything first to aliminate an anoying android bug
                    String.valueOf (0),
                    String.valueOf (1),
                    String.valueOf (2),
                    String.valueOf (3),
                    String.valueOf (4),
                    String.valueOf (5),
                    String.valueOf (6),
                    String.valueOf (7),
                    String.valueOf (8),
                    String.valueOf (9)));

            arrayOfBaseStations.set(i, new BestPositionListModel( // this is the real value were adding
                    String.valueOf (modelData.channelSectorType),
                    String.valueOf (modelData.channelAngle),
                    String.valueOf (modelData.channelElvation),
                    String.valueOf (modelData.channelAntBeamWidth),
                    String.valueOf (modelData.channelShort),
                    String.valueOf (modelData.CBW),
                    String.valueOf (modelData.bestRSS),
                    String.valueOf (modelData.sectorID),
                    String.valueOf (modelData.avilableResurces),
                    String.valueOf (modelData.bestEffortHSU)));


        }
    };

Answer 1

将数据添加到列表后，您应该使用adapter.notifydatasetchanged()。你试过吗？

android列表仅在第二组更新

1 个答案: