android - Android onClickListener 在片段中的列表项上显示自定义对话

Question

单击列表项时，我想打开一个自定义对话框。如何实现onClickListener我的代码：

public class Fragment4 extends Fragment{
    private View parentLayout;
    private ListView listView;
    private ArrayList<String> myList;
    private AboutUsAdapter adapter; //custom adapter

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
        parentLayout = inflater.inflate(R.layout.fragment_4, null);
        listView = (ListView)parentLayout.findViewById(R.id.listView4);
        myList = new ArrayList<String>();

        myList.add("Item1");
        myList.add("Item2");
        myList.add("Item2");
        adapter = new AboutUsAdapter(getActivity().getBaseContext(), myList);
        listView.setAdapter(adapter);
        return parentLayout;
            }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
          listView.setOnItemClickListener(new OnItemClickListener() {
              public void onItemClick(AdapterView<?> parent, View view,
                  int position, long id) {            
    }

}); } }

Answer 1

你可以用这种方式...

listView.setOnItemClickListener(new OnItemClickListener() {
          public void onItemClick(AdapterView<?> parent, View view,
              int position, long id) {  

    AlertDialog.Builder alert = new AlertDialog.Builder(getActivity());
    alert.setTitle("Your title here");
    alert.setMessage(myList.get(position).toString());
    alert.setPositiveButton(R.string.OK,
            new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub

                    dialog.dismiss();

                }
            });

    alert.show();          
}});

以同样的方式，您可以使用自定义对话框

改变你的线路

parentLayout = inflater.inflate(R.layout.fragment_4, null);

到

parentLayout = inflater.inflate(R.layout.fragment_4, container,false);

Answer 2

您可以为列表项设置 clickListener，如下所示：

    listView.setOnItemClickListener(new OnItemClickListener()
    {
        @Override 
        public void onItemClick(AdapterView<?> arg0, View arg1,int position, long arg3)
        { 
            // show your dialog here
            Toast.makeText(yourActivity.this, "" + position, Toast.LENGTH_SHORT).show();
        }
    });