<?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/bkgrnd">
<RelativeLayout
android:id="@+id/RelativeLayout01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<ImageView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ImageView_MenuHeader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/logo"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"></ImageView>
<TextView
android:id="@+id/TextView01"
android:layout_height="wrap_content"
android:text="@string/admin"
android:textSize="@dimen/screen_title_size"
android:shadowDx="0"
开发者_运维问答 android:shadowDy="0"
android:shadowRadius="10"
android:layout_width="wrap_content"
android:layout_gravity="fill_horizontal|center"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:shadowColor="@android:color/white"
android:textColor="@color/title_color"></TextView>
<ImageView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ImageView_MenuHeader2"
android:layout_height="wrap_content"
android:src="@drawable/logo"
android:layout_gravity="right|center_vertical"
android:layout_width="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"></ImageView>
</RelativeLayout>
<ScrollView
android:id="@+id/ScrollView01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:isScrollContainer="true"
android:scrollbars="vertical"
android:scrollbarAlwaysDrawVerticalTrack="true">
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Spinner
android:id="@+id/Spinner_Table"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:drawSelectorOnTop="true"></Spinner>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="@dimen/help_text_size"
android:textStyle="bold"
android:gravity="center"
android:id="@+id/Blank"></TextView>
<TextView
android:id="@+id/admintable"
android:layout_width="wrap_content"
android:layout_height="wrap_content"></TextView>
</LinearLayout>
</ScrollView>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="fill_parent">
<Button
android:id="@+id/Logout"
android:text="@string/Logout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"></Button>
</RelativeLayout>
</LinearLayout>
All of the above xml is within a liner layout...The problem is when the text view admin table get written data too in the application there is a large amount of data shown...the data shows fine...however when the user scrolls to the bottom of the screen they should see the logout button, but it is not showing?
Try setting the ScrollView
layout_height
to something static like 60dp
and set the layout_weight
to 1.0
which will cause it to expand to its maximum without going off the screen.
<ScrollView
android:id="@+id/ScrollView01"
android:layout_width="fill_parent"
android:layout_height="60dp"
android:layout_weight="1.0"
android:isScrollContainer="true"
android:scrollbars="vertical"
android:scrollbarAlwaysDrawVerticalTrack="true">
...
</ScrollView>
This however should cause the Logout button to show up all the time below the ScrollView
.
In order to get the button to appear at the bottom of the ScrollView
try moving the RelativeLayout
inside the ScrollView
and nesting them in another LinearLayout
like so:
<?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/bkgrnd">
<RelativeLayout
android:id="@+id/RelativeLayout01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
... your header views ...
</RelativeLayout>
<ScrollView
android:id="@+id/ScrollView01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:isScrollContainer="true"
android:scrollbars="vertical"
android:scrollbarAlwaysDrawVerticalTrack="true">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
... data you load ...
</LinearLayout>
<RelativeLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="fill_parent">
<Button
android:id="@+id/Logout"
android:text="@string/Logout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"></Button>
</RelativeLayout>
</LinearLayout>
</ScrollView>
</LinearLayout>
Some comments:
You don't need to define widgets like this:
<Button
android:id="@+id/Logout"
android:text="@string/Logout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"></Button>
You can do it like this:
<Button
android:id="@+id/Logout"
android:text="@string/Logout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"/>
From my point of view, the issue you are having is that the ScrollView
is taking all the space left.
Try defining the RelativeLayout
with the Button
first and tell the ScrollView
to be android:layout_above
the RelativeLayout
.
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