android - Expandablelistview 展开时背景变黑

Question

我在 Android 2.3.5(可能还有更早的 Android 版本)上遇到这个问题

当我的 expnadablelistview 折叠时，背景会正确显示。一旦一组行展开，它的背景就会变黑。

这是 ListView

<?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="fill_parent"
android:background="@drawable/bg"
>

    <TextView  
        android:id="@+id/ExpandableListText"
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:textColor = "#490600"
        android:paddingRight = "25sp"
        android:paddingLeft = "25sp"
    />

    <ExpandableListView 
        android:id="@+id/ExpandableListView01" 
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"
        android:divider="#000000"
        android:dividerHeight="1sp"
        android:childDivider="#000000"
        android:headerDividersEnabled="true"
        android:footerDividersEnabled="true"
        android:scrollingCache="false"
        android:cacheColorHint="#00000000"
         android:drawSelectorOnTop="true"
    />
</LinearLayout>

这是组行的 XML

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

>

    <TextView
        android:id="@+id/TextViewGroup" 
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_marginLeft="50sp"
        android:gravity="center_vertical"
        android:textColor = "#490600"
        android:paddingTop="7dip"
        android:paddingBottom="7dip"
    ><!--  -->
    </TextView>

</LinearLayout>

这是 child_row XML

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

>
 <!-- android:background="#666666" -->
    <!--  -->
    <TextView
        android:id="@+id/TextViewChild01" 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30sp"
        android:textColor = "#000000"
    >
    </TextView>

    <TextView
        android:id="@+id/TextViewChild02" 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10sp"
        android:textColor = "#000000"
    >
    </TextView>

    <TextView
        android:id="@+id/TextViewChild03" 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10sp"
        android:textColor = "#000000"
    >
    </TextView>

</LinearLayout>

非常感谢任何帮助

Answer 1

自定义您的 ExpandableListView 类，然后 -

package com.test
//....................

View getView(.....) {
   View v = super.getView(....);

   //........
   //change it your color or or set the text you want.
   return(v);
}

然后将其设置到您的布局中 -

<?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="fill_parent"
android:background="@drawable/bg"
>

<TextView  
    android:id="@+id/ExpandableListText"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:textColor = "#490600"
    android:paddingRight = "25sp"
    android:paddingLeft = "25sp"
/>

<com.test.ExpandableListView 
    android:id="@+id/ExpandableListView01" 
    android:layout_height="wrap_content"
    android:layout_width="fill_parent"
    android:divider="#000000"
    android:dividerHeight="1sp"
    android:childDivider="#000000"
    android:headerDividersEnabled="true"
    android:footerDividersEnabled="true"
    android:scrollingCache="false"
    android:cacheColorHint="#00000000"
     android:drawSelectorOnTop="true"
/>