安卓ListView点击事件无响应_数据之道_安卓listview点击事件

ListView布局文件如下：

<RelativeLayout xmlns:android="https://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="30dp" >


    <com.h1.warehouse.control.MyTableTextView
        android:id="@+id/tv_net"
        android:layout_width="100dp"
        android:layout_height="fill_parent"
        android:layout_alignBottom="@+id/tv_gross"
        android:layout_alignTop="@+id/tv_gross"
        android:layout_toRightOf="@+id/tv_gross"
        android:gravity="center"
        android:textColor="#000"
        android:textSize="13sp" />

    <com.h1.warehouse.control.MyTableTextView
        android:id="@+id/tv_invoice"
        android:layout_width="100dp"
        android:layout_height="fill_parent"
        android:layout_alignBottom="@+id/tv_net"
        android:layout_alignTop="@+id/tv_net"
        android:layout_toRightOf="@+id/tv_net"
        android:gravity="center"
        android:textColor="#000"
        android:textSize="13sp" />

    <Button
        android:id="@+id/btn_delete"
        android:layout_width="60dp"
        android:layout_height="fill_parent"
        android:layout_alignBottom="@+id/tv_invoice"
        android:layout_alignTop="@+id/tv_invoice"
        android:layout_marginRight="5dp"
        android:layout_toRightOf="@+id/tv_invoice"
        android:background="@color/blue"
        android:gravity="center"
        android:text="删除"
        android:textColor="@android:color/white" />

</RelativeLayout><RelativeLayout xmlns:android