Android - 列表视图选定项目

时间:2017-05-04 15:35:02

标签: android listview

我制作了一个listview,我想让用户输入一个选择。我怎样才能做到这一点? Atm我只设法创建ListView并显示数据。

是否有一种简单的方法可以获取ListView中所选项的值并在以后使用它?类似于ListView RadioButton。

XML:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.tiagosilva.amob_android.TubeDataArchive" >

<ListView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/lv_tubeData"
    android:choiceMode="singleChoice">
</ListView>

列表视图:

public class TubeDataArchive extends Fragment {


public TubeDataArchive() {
    // Required empty public constructor
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment_tube_data_archive, container, false);

    ListView tubeDataList = (ListView) view.findViewById(R.id.lv_tubeData);

    //load tube data
    SharedPreferences settings = getActivity().getSharedPreferences("PREFS",0);
    String tubeDataString = settings.getString("tubeData", "");
    String[] tubeDataSplit = tubeDataString.split("\n");
    List<String> tubeDataItems = new ArrayList<>();

    for(int i=0; i<tubeDataSplit.length;i++)
    {
        tubeDataItems.add(tubeDataSplit[i]);
    }

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
            android.R.layout.simple_list_item_1, android.R.id.text1, tubeDataItems);

    // Assign adapter to ListView
    tubeDataList.setAdapter(adapter);

    return view;
}

 }

2 个答案:

答案 0 :(得分:0)

  

是否有一种简单的方法来获取所选项目的价值   ListView并在以后使用它?

在for循环后添加onItemClickListener

tubeDataList.setOnItemClickListener(new OnItemClickListener() {
       @Override
         public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
            // do whatever you want
          Log.d("############","Items " + tubeDataSplit[arg2] );
     }
 });
  

类似于ListView RadioButton

如果您希望listview包含radio button,则需要创建自定义listview布局。

答案 1 :(得分:-1)

将ItemClickListener添加到列表视图

tubeDataList.setOnItemClickListener(new OnItemClickListener() {

    @Override
    public void onItemClick(AdapterView<?> parent, View view,
            int position, long id) {
        Toast.makeText(getapplicationcontext(), tubeDataItems.get(id), 
   Toast.LENGTH_LONG).show();
    }

});