当项目在android的列表视图中创建托运

问题描述

我想为我的Andr​​oid应用程序创建一个报警系统，和我有一个列表视图中，我加入alamrs。这列表视图适配器是一个 simple_list_item_multiple_choice 。我想，当我加入这个显示为列表视图检查，但我还没有找到该解决方案报警。

I am trying to create an alarm system for my android app, and I have a listview in which I am adding the alamrs. This listview adapter is an simple_list_item_multiple_choice. I want that when I add an alarm this appears as checked in the listview, but I have not found the solution for that.

这code不工作如我所料：

This code is not working as I expected:

{
    ListView list = (ListView)findViewById(R.id.listView1);
    list.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_multiple_choice, this.alarmList);
    list.setAdapter(adapter);
    list.setItemChecked(itemPos, true);
}

你知道还有什么可以我尝试？

Do you know what else could I try?

先谢谢了。

推荐答案

多德试试这个code我希望这是你的意思是：

Dude try this code i hope that is that you mean:

final SparseBooleanArray mSelectedItemsIds = new SparseBooleanArray();
final  ListView list = (ListView)findViewById(R.id.listView1);
 ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,  android.R.layout.simple_list_item_multiple_choice, this.alarmList);
        list.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

        list.setAdapter(adapter );
        list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                //SparseBooleanArray Checked = list.getCheckedItemPositions();
                if(!mSelectedItemsIds.get(position)){
                   list.setItemChecked(position, true);
                    mSelectedItemsIds.put(position, true);
                }
                else{
                    mSelectedItemsIds.delete(position);
                    list.setItemChecked(position, false);
                }



            }
        });

编辑：我设置列表作为最后的，一定要做到这一点，如果你还剪掉，否则它不会工作。

i set the list as final, make sure you do it also if you didnt otherwise it wont work

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