带有checkedtextview的Listview

Question

我有两个问题：

如果我在CheckedTextView

• If中使用CheckedTextView，而我的类只扩展了Activity (而不是ListActivity)，因为在ListView下面还有一个按钮，那么我应该侦听什么事件，当在ListView中选择复选框时，我扩展类来使用ListActivity，我可以使用onListItemClick事件，对吗？如何在这种布局中添加一个新按钮？

这是我的密码。

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    m_versionText=(TextView)findViewById(R.id.versionText);
    m_versionText.setText("Android Version is:" + Build.VERSION.RELEASE);
    m_btnAllCalendars = (Button)findViewById(R.id.btn_allCalendars);
    m_btnAllCalendars.setOnClickListener(mCalendarListener);
    m_calendarList=(ListView)findViewById(R.id.calList);

    //populateList uses simplecursoradapter to add items to the listview..(this part is working)

    populateList();
    m_calCheckText = (CheckedTextView)findViewById(R.id.calTextView);
    m_calCheckText.setOnClickListener(new OnClickListener(){
        @Override
        public void onClick(View v){
        if (((CheckedTextView)v).isChecked())
        {
            Log.d(TAG,"i am inside ...its checked");
        }
    }

    });

     private void populateList(){

        Log.d(TAG,"inside populateList");
        Cursor cursor = getAllCalendars();
        startManagingCursor(cursor);

        SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,R.layout.cal_list,cursor,new String[]{"displayName"},new int []{R.id.calTextView});
        //m_calendarList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        m_calendarList.setAdapter(adapter);
      }

 }

最新情况：：

        SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,R.layout.cal_list,cursor,new String[]{"displayName"},new int []{R.id.calTextView});
        m_calendarList=getListView();
        m_calendarList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        m_calendarList.setAdapter(adapter);
        m_calendarList.setOnItemClickListener(new OnItemClickListener(){
            public void onItemClick(AdapterView<?> parent, View view,int position,long id)
            {
                Log.d(TAG,"I am inside onItemClick and position is:"+String.valueOf(position));
            CheckedTextView ctv = (CheckedTextView)view;
    the below code didnt work too           
          //CheckedTextView ctv = (CheckedTextView)view.findViewById(R.layout.cal_list);
                ctv.setChecked(!ctv.isChecked());

            }

        });

Answer 1

你可以试试这个：

m_calendarList.setAdapter(adapter);
m_calendarList.setOnItemClickListener(new OnItemClickListener() {
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        // do something here...
        // m_calendarList.getCheckedItemPosition(); will also give you the position
    }
});

编辑：

m_calendarList.setOnItemClickListener(new OnItemClickListener(){
    public void onItemClick(AdapterView<?> parent, View view,int position,long id) {
        View v = m_calendarList.getChildAt(position);
        CheckedTextView ctv = (CheckedTextView) v.findViewById(R.id.cal_id);
    }
});

Answer 2

您可以在侦听器的onClick()方法中使用onClick()，您可以使用CheckedTextView.isChecked()来确定它是选中的还是未选中的。

编辑:下面是适配器的getView()方法的一个示例。

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        v = convertView;
        if (v == null) {
            LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = vi.inflate(R.layout.row, null);
        }
        m_calCheckText = (CheckedTextView)v.findViewById(R.id.calTextView);
        m_calCheckText.setOnClickListener(new OnClickListener(){

            @Override
            public void onClick(View v){
                if (((CheckedTextView)v).isChecked())
                {
                   Log.d(TAG,"i am inside ...its checked");
                }
            }
        });

        return v;
    }