Question

我有一个带有数字的列表视图和一个带有每个数字的图像按钮。我想点击按钮点击行中的号码。我的getview方法是

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    // TODO Auto-generated method stub
    View rowView = convertView;
    ContactStockView sv = null;
    if (rowView == null) {
        // Get a new instance of the row layout view
        LayoutInflater inflater = activity.getLayoutInflater();
        rowView = inflater.inflate(
                R.layout.activity_row, null);

        // Hold the view objects in an object,
        // so they don't need to be re-fetched
        sv = new ContactStockView();
        sv.name = (TextView) rowView.findViewById(R.id.textacti_row1);
        sv.number = (TextView) rowView.findViewById(R.id.textacti_row2);
        sv.btncall=(ImageButton)rowView.findViewById(R.id.imgbtn_call);
        //sv.btncall.setOnClickListener((OnClickListener) activity);
        rowView.setTag(sv);
        //ImageButton btn=(ImageButton)convertView.findViewById(R.id.btn_call);
      /*  */
    } else {
        sv = (ContactStockView) rowView.getTag();
    }

    // Transfer the stock data from the data object
    // to the view objects
    ContactStock currentStock = (ContactStock) stocks.get(position);
    sv.name.setText(currentStock.getName());
    number=currentStock.getNumber();
    sv.number.setText(number);
    //ImageButton btn=(ImageButton)rowView.findViewById(R.id.imgbtn_call);
    sv.btncall.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {

            // TODO Auto-generated method stub
            //Toast.makeText( activity, number, Toast.LENGTH_SHORT).show();
            String phoneCallUri = "tel:"+number;
            Intent phoneCallIntent = new Intent(Intent.ACTION_CALL);
            phoneCallIntent.setData(Uri.parse(phoneCallUri));
             activity.startActivity(phoneCallIntent);
        }
    });
    /*  btn.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub



            //Toast.makeText( activity, "abc", Toast.LENGTH_SHORT).show();
        /*}
    });*/
    // TODO Auto-generated method stub
    return rowView;
}
 protected static class ContactStockView {
        protected TextView name;
        protected TextView number;
        protected ImageButton btncall;
    }

我的日志猫叫声 enter image description here

Answer 1

你应该在get view方法中声明字符串数字而不是在它之外。变化

number=currentStock.getNumber();

到

final String number=currentStock.getNumber();

并从外部getview方法

中删除字符串（即数字）

Answer 2

你无法通过这种方式找到问题。您必须 debug getView方法。

通过

做到这一点

1）双击外框左侧方法的第一行，看一个小点代表breakpoint。

2）右键单击该项目，然后单击Debug as Android application。

3）使用按钮F6（在Eclipse中）开始移动步骤，直到找到您编码的特定行产生错误。

4）现在当你知道这条线时，更容易找出发生了什么。

Answer 3

使用setTag将数字附加到视图，然后在单击侦听器中检索它。你也不需要每次都有一个新的监听器，在函数外定义一次......

sv.btncall.setTag(number);

然后在onclick听众......

new View.OnClickListener() {
@Override
  public void onClick(View v) {

   String number = (String) v.getTag();
   String phoneCallUri = "tel:"+number;
   Intent phoneCallIntent = new Intent(Intent.ACTION_CALL);
   phoneCallIntent.setData(Uri.parse(phoneCallUri));
   activity.startActivity(phoneCallIntent);
  }
}

在列表视图内点击按钮时出错

3 个答案: