I am developing an Android Application and I have an Activity that looks like this. I have a header and a footer that have fixed positions, and a ListView with clickable items in the middle. Below the ListView, I have a button.
It is working when I have a few items, but as I add more items, the button begins to disappear, like this.
When I have more items in that list that can be shown in the page, I have a scroll in the list. If I scroll down like this I can see all the items in the list, but the button is hidden.
I have had a lot of problems before trying to add a ListView inside a ScrollView, so I know it doesn’t work. As I am new in Android development, perhaps my XML layout files are a bit confusing, but I have a parent LinearLayout with two RelativeLayouts inside, one for the header and one for the middle and footer. The XML is something like this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#FFFFFF">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:background="@drawable/background"
android:gravity="center_vertical">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:text="@string/baseTitle"
android:textColor="#FFFFFF"
android:layout_centerVertical="true"
android:textSize="18dp"
android:textStyle="bold"/>
<Button
android:id="@+id/buttonHelp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:background="@drawable/button_help"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="fill_vertical">
<LinearLayout
android:id="@+id/buttonBar"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center"
android:background="#bdbdbd"
android:layout_alignParentBottom="true">
<RelativeLayout
android:id="@+id/bottomButtomBar"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="5dp"
android:layout_marginBottom="5dp"
android:orientation="horizontal">
<Button
android:id="@+id/myGroups"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="@string/myGroups"
android:gravity="center"
android:textSize="13dp"
android:textColor="#000000"
android:background="@layout/button_meus_grupos"/>
<Button
android:id="@+id/createGroups"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_centerInParent="true"
android:text="@string/createGroups"
android:gravity="center"
android:textSize="13dp"
android:textColor="#000000"
android:background="@layout/button_criar_grupos"/>
<Button
android:id="@+id/configurations"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="15dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="@string/configurations"
android:gravity="center"
android:textSize="13dp"
android:textColor="#000000"
android:background="@layout/button_configuracoes"/>
</RelativeLayout>
</LinearLayout>
<LinearLayout
android:layout_above="@id/buttonBar"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/listContent"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffffff"
android:orientation="vertical"
>
<RelativeLayout
android:id="@+id/searchBarLayout"
android:layout_width="fill_parent"
android:layout_height="48dp"
android:orientation="horizontal"
android:background="#ffffff"
android:gravity="center_vertical"
android:clickable="true"
>
<TextView
android:id="@+id/myGroupsLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/myGroups"
android:layout_centerInParent="true"
android:textColor="#bdbdbd"
android:textSize="16dp"
android:textStyle="bold"
/>
<ImageView
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="15dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/ic_search" />
</RelativeLayout>
<View android:layout_height="2dip"
android:layout_width="wrap_content"
android:background="#cccccc"
/>
<ListView android:id="@+id/listview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:cacheColorHint="#000000"
/>
<Button
android:id="@+id/buttonCreateGroup"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:background="@layout/button_confirm"
android:layout_gravity="center_horizontal"
android:text="@string/createOneGroup"
android:textColor="#FFFFFF"
android:textSize="22dp"
android:layout_marginTop="15dp"
/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</RelativeLayout>
</LinearLayout>
Does anyone have any tips on how can I keep the footer fixed, scroll down until the end of the list and then show the button? I want that it looks like the button is the last item at the List.
EDIT: Entire XML posted
The only way I could achieve the exact requirements I explained above was doing the following:
-In the XML file with the layout of the list items, I added a button with
android:visibility="gone".-In my custom ListView adapter, I always add an empty object in the last position. I simply add an object with a flag that shows it is the last in the list.
-In the method
getView()that I override in the custom Adapter, I check if the object in the current position has the flag indicating that it is the last in the list. If so, I set the button visibility to VISIBLE, otherwise I fill the other components.If anyone is facing the same problem and needs some sample code from my solution just ask here.