BaseAdapter OnItemClickListener从未呼吁

Question

我有一个自定义BaseAdapter为我的ListView其中我实现AdapterView.OnItemClickListener。

问题是onItemClick(AdapterView<?>, View, int, long)方法永远不会被调用。我想我需要在我的主Activity中实现interface，而不是在我的ListView自定义适配器中。

MyListViewAdapter.java：

public class MyListViewAdapter extends BaseAdapter implements AdapterView.OnItemClickListener 
{ 
    private Context context; 
    private ArrayList<MyListViewRow> rowsList = new ArrayList<MyListViewRow>(); // All one row items 

    private TextView a; 


    public MyListViewAdapter(Context context,ArrayList<MyListViewRow> rowsList) 
    { 
     this.context = context; 
     this.rowsList = rowsList; 
    } 

    @Override 
    public int getCount() 
    { 
     return this.rowsList.size(); 
    } 

    @Override 
    public Object getItem(int position) 
    { 
     return this.rowsList.get(position); 
    } 

    @Override 
    public long getItemId(int position) 
    { 
     return position; 
    } 

    /** 
    * Returns a new row to display in the list view. 
    * 
    * Position - position of the current row. 
    * 
    */ 
    @Override 
    public View getView(int position, View convertView, ViewGroup parent) 
    { 
     LayoutInflater layoutInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     /** 
     * Inflating the root view and all his children and set them to a View Object. 
     * 
     */ 
     View row = layoutInflater.inflate(R.layout.list_view_row,null); 

     // Get all the views in my row 
     this.a = (TextView) row.findViewById(R.id.a_id; 


     MyListViewRow myListViewRow = rowsList.get(position); 

     // Set values to all the views in my row 
     this.a.setText(myListViewRow.getA()); 



     return row; 
    } 


    @Override 
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) 
    { 
     Toast.makeText(context, "onItemClick LV Adapter called", Toast.LENGTH_LONG).show(); 

    } 


} // End of MyListViewAdapter class 

我说得对不对？

Answer 1

为什么你会在适配器中有一个OnItemClickListener？要么在适配器内部有OnClickListener，要么最好的做法是将OnItemClickListener设置为ListView或您在活动/片段中使用的任何AdapterView。 你现在这样做的方式，它不会有几个原因：

1. 您不设置侦听器视图。
2. 您CAN NOT将OnItemClickListener设置为TextView。
3. 将onClickListener设置为适配器类中的TextView意味着您将不得不单击TextView本身，否则将会调用侦听器不会调用。

Answer 2

使用自定义适配器OnItemClickListener不起作用。您必须在getView方法中的view上注册onClickListener。

public View getView(int position, View convertView, ViewGroup parent) 
    { 
     LayoutInflater layoutInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     /** 
     * Inflating the root view and all his children and set them to a View Object. 
     * 
     */ 
     View row = layoutInflater.inflate(R.layout.list_view_row,null); 

     // Get all the views in my row 
     this.a = (TextView) row.findViewById(R.id.a_id; 


     MyListViewRow myListViewRow = rowsList.get(position); 

     // Set values to all the views in my row 
     this.a.setText(myListViewRow.getA()); 
     row.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      // do your stuff 
     } 
    }); 


     return row; 
    }