带有checkedtextview的Listview

时间:2011-02-17 20:39:52

标签: android listview checkedtextview

我有两个问题:

  1. 如果我在CheckedTextView中使用ListView而我的班级只展开Activity(而不是ListActivity),因为我底部有另一个按钮低于我的ListView, 当CheckedTextView

  2. 中选中了复选框时,我应该听哪个事件
  3. 如果我将课程扩展为使用ListActivity,我可以使用onListItemClick事件,对吧?如何在此类布局中添加新按钮?

  4. 这是我的代码..

    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);
          }
    
     }
    

    UPDATE :::

            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());
    
                }
    
            });
    

2 个答案:

答案 0 :(得分:3)

您可以使用CheckedTextView.setOnClickListener()在侦听器的onClick()方法中,您可以使用CheckedTextView.isChecked()来确定它是已选中还是未选中。

编辑:以下是适配器的getView()方法示例。

    @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;
    }

答案 1 :(得分:2)

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);
    }
});