android - ScrollView cuts off the top and leaves space at the bottom

Question

When I launch the emulator and enter the screen which uses this code it shows most of the text information but cuts off the top of the screen (cant scroll up) but leaves a bit of space at the bottom.

Here is the code;

    <ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" 
    android:visibility="visible"
    android:fillViewport="true"
    android:id="@+id/backgroundImage" >

 <LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:layout_gravity="center"
    android:padding="10dip" >

     <ImageView
        android:id="@+id/earthSymbolImageView"
        android:layout_width="25dp"
        android:layout_height="25dp"
        android:src="@drawable/earthsymbol" />

     <TextView
        android:id="@+id/earth_content1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/earth_title"
        android:gravity="center" 
        android:textColor="#FFFFFF"
        android:textSize="20sp" />

    <TextView
        android:id="@+id/earth_content2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/earth_text" 
        android:textColor="#FFFFFF" />

    <Button
        android:id="@+id/backButton"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/back" />

     </LinearLayout>
    </ScrollView>

Does anyone know why would this be happening?

question from:https://stackoverflow.com/questions/15922866/scrollview-cuts-off-the-top-and-leaves-space-at-the-bottom

Answer 1

This is being caused because of the layout_gravity in your LinearLayout. Since your LinearLayout is inside a ScrollView you are probably just trying to center horizontally (centering vertically inside a ScrollView doesn't make since). Specifying your LinearLayout to center horizontally like this should do the trick:

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:layout_gravity="center_horizontal"
    android:padding="10dip" >