Question

我使用由JSON填充的ListView，这部分有效，但是当我点击列表项时，点击不起作用。

我已阅读过有关的事情 setDescendantFocusability(FOCUS_BLOCK_DESCENDANTS);但我不明白该把它放在哪里。

这是我的代码

这个片段显示在MainActivity的TabLayout中

public class Tab3 extends Fragment {
private View v;

private  ListView listView;
private ArrayList<CustomModel> mCustomArrayList = new ArrayList<CustomModel>();

private AdapterCustom adapter1;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    String equipeJSONString=((MainActivity)getActivity()).equipeJSONString;

    try {

        JSONObject obj = new JSONObject(equipeJSONString);
        JSONArray equipe = obj.getJSONArray("equipe");

          for (int i = 0; i < equipe.length(); i++) {
            JSONObject c = equipe.getJSONObject(i);
            //stock les valeurs du Json dans des vars
            String nom = c.getString("nom");
            String photo = c.getString("photo");
            String texte = c.getString("texte");
            mCustomArrayList.add(new CustomModel(nom, texte,photo));

         }

    } catch (Throwable t) {
        Log.e("Tab3", "Erreur Could not parse malformed JSON : \"" + equipeJSONString + "\"");
    }
}

@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    v =inflater.inflate(R.layout.tab_3,container,false);
  //  v.setBackgroundColor(Color.BLACK);      

    listView = (ListView) v.findViewById(R.id.customlist);

    adapter1 = new AdapterCustom(getActivity(), mCustomArrayList);
    // Assign adapter to ListView
    listView.setAdapter(adapter1);

    // ListView Item Click Listener
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view,     int position, long id) {
            Log.v("Tab3","click on Item");

            // ListView Clicked item index
            int itemPosition     = position;

            // ListView Clicked item value
            String  itemValue    = (String) listView.getItemAtPosition(position);

            // Show Alert
           Toast.makeText(getActivity().getApplicationContext(),
                    "Position :" + itemPosition + "  ListItem : " + itemValue, Toast.LENGTH_LONG)
                    .show();

            Intent myIntent = new Intent(getActivity(),CustomActivity.class);                
            startActivity(myIntent);
    }
    });

     return v;
    }
  }

编辑：我使用String []

进行了测试

如果我使用String []填充它有效的列表，我可以点击。

在OnCreateView上测试代码：

    String[] values2 = new String[] { "Android List View",
            "Adapter implementation",
            "Simple List View In Android",
            "Create List View Android",
            "Android Example",
            "List View Source Code",
            "List View Array Adapter",
            "Android Example List View"
    };
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1, android.R.id.text1, values2);

当我使用AdapterCustom填充时出了什么问题？

Answer 1

listView.setClickable(true);//in fragment

@Override
public boolean isEnabled(int position) //in adapter
{
    return true;
}

Answer 2

你可以在onItemClick内使用一个开关盒像

switch(position)
{
case 0:

String  itemValue    = (String) listView.getItemAtPosition(position);

            // Show Alert
           Toast.makeText(getActivity().getApplicationContext(),
                    "Position :" + itemPosition + "  ListItem : " + itemValue, Toast.LENGTH_LONG)
                    .show();

            Intent myIntent = new Intent(getActivity(),CustomActivity.class);

            startActivity(myIntent);


}

Answer 3

好的，我发现了，我有一个

.setOnClickListener(new View.OnClickListener() {

处理点击的CustomAdapter。

进行这些测试有助于我找到解决方案。

OnClickListener不适用于JSON Poulated ListView

3 个答案: