Android - onClick in适配器无法正常工作

Question

场景:

用户单击按钮并添加行(适配器).用户输入一个值并单击生成的按钮.该值将被计算并显​​示在编辑文本中.

问题:该值未计算,也未显示在编辑文本中.我究竟做错了什么？

custom_list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">  

<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center">

<EditText
android:id="@+id/name"
android:layout_width="125dp" 
android:layout_height="wrap_content"
android:hint="Name"
android:maxLength="10"
/>

<EditText
android:id="@+id/price"
android:layout_width="80dp" 
android:layout_height="wrap_content"
android:hint="Price"
android:inputType="numberDecimal"
android:maxLength="5"
/>

<Button
android:id="@+id/calculate"
android:layout_width="wrap_content" 
android:layout_height="wrap_content"
android:text="Calculate"
/>

</LinearLayout>

<EditText
android:id="@+id/result"
android:layout_width="150dp" 
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:editable="false" 
android:cursorVisible="false"
android:text="$0.00"
/>    

main.java <<EDITTED>>

public class AdvancedBillSplitter extends Activity{

ArrayList<String> noteList = new ArrayList<String>();
FancyAdapter aa = null;

Button calculate;
//EditText price;
EditText result;

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

    ListView myListView = (ListView)findViewById(R.id.noteList);
    aa = new FancyAdapter();

    myListView.setAdapter(aa);

    myListView.setOnItemClickListener(new OnItemClickListener() {
       public void onItemClick(AdapterView<?> arg0, View arg1,
                 int position, long arg3) {
           EditText price = (EditText)findViewById(R.id.price);
           price = (EditText)findViewById(R.id.price);
           double price1 = Double.parseDouble(price.getText().toString());
           double total = price1 *1.1;
           String resultPrice = Double.toString(total);
           result.setText(resultPrice);
           System.out.println(total);

        }
    });
    aa.notifyDataSetChanged();


    Button btnSimple = (Button)findViewById(R.id.btnSimple);        

    btnSimple.setOnClickListener(new OnClickListener() {
        public void onClick(View v)
        {
            noteList.add(0, "");
            aa.notifyDataSetChanged();

        }
    });        

}

class FancyAdapter extends ArrayAdapter<String>
{
    Button calculate;
    EditText price;
    EditText result;

    FancyAdapter()
    {
        super(AdvancedBillSplitter.this, android.R.layout.simple_list_item_1, noteList);
    }

    public View getView(int position, View convertView, ViewGroup parent)
    {
        View row = convertView;     

        if(row == null)
        {
            LayoutInflater inflater = getLayoutInflater();
            row = inflater.inflate(R.layout.custom_list_item, null);
        }

        return (row);
    }
}

}

Answer 1

简单的补充,

<Button
android:id="@+id/calculate"
android:layout_width="wrap_content" 
android:layout_height="wrap_content"
android:focusable="false"
android:focusableInTouchMode="false"
android:text="Calculate"
/>

它没有捕获点击事件,因为该列表有两个可聚焦的项目(列表项和按钮),所以现在这是一个不明确的情况.所以使按钮不可聚焦.它仍然捕获点击事件.