Android about ListView ScrollView Bottom control cannot be displayed for two solutions

Programme I

Implemented with LinearLayout, the code is as follows:

<!--winning record by MHD -    <LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:tools= "Http://schemas.android.com/tools"Android:layout_width= "Match_parent"Android:layout_height= "Wrap_content"android:orientation= "vertical" >        <ImageViewAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"android:contentdescription= "@string/imagetip"Android:scaletype= "Fitxy"android:src= "@drawable/prizelist_ad" />        <ListViewAndroid:layout_width= "Match_parent"Android:layout_height= "0DP"Android:id= "@+id/lv_prizelist"Android:layout_weight= "1"             >        </ListView>                        <includeLayout= "@layout/footer_copyright"Android:layout_height= "Wrap_content"Android:layout_width= "Match_parent" />    </LinearLayout>

android:layout_weight= "1" of the Focus ListView

Programme II

Implemented with Relativelayout, the code is as follows:

<Relativelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent" >    <ButtonAndroid:id= "@+id/button1"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_alignparentbottom= "true"//Set your button at the bottom android:layout_centerhorizontal= "true"Android:text= "button" />    <ListViewAndroid:id= "@android: Id/list"Android:layout_above= "@+id/button1"//Place ListView above button Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"Android:layout_alignparenttop= "true"        >    </ListView> </Relativelayout>

The point is android:layout_alignparentbottom= "true"

Android about ListView ScrollView Bottom control cannot be displayed for two solutions