(Android) ScrollView won't scroll all the way to the bottom of my LinearLayout

Question

So I have a ScrollView with a LinearLayout within it. It seems that when I attempt to scroll to the bottom of my linearlayout, the bottom ~5 dip is cut off (ie bottom margin) I think it might have something to do with my linearlayout's 5dip margin?

Here's activity_create_account.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="@drawable/grey"
android:orientation="vertical"
android:padding="0dp"
tools:context=".Login" >

<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:weightSum="100"
android:orientation="vertical">

<!-- BEGIN HEADER -->
<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:background="@drawable/titlebar"
    android:orientation="horizontal"
    android:padding="8dip" >
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:padding="0dp"
        android:text="create account"
        android:textColor="#FFFFFF"
        android:textSize="32sp"
        android:textStyle="bold"
        android:typeface="sans" />
</LinearLayout>
<!-- END HEADER -->

<!-- BEGIN BODY -->

<ScrollView
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_gravity="top"
    android:orientation="vertical">

<LinearLayout
    android:id="@+id/innerLinearLayout"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_margin="10dip"
    android:background="@drawable/rounded_white"
    android:orientation="vertical"
    android:padding="5dip" >

    <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:inputType="textEmailAddress"
            android:ems="10"
            android:id="@+id/etCreateEmail"
            android:hint="Email"
            android:layout_weight="1"
            android:paddingTop="8dip"
            android:paddingBottom="8dip"
            android:paddingRight="8dip"
            android:paddingLeft="8dip"
            android:layout_marginBottom="4dip"
            android:layout_marginTop="5dip"/>
    <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:inputType="textEmailAddress"
            android:ems="10"
            android:id="@+id/etCreateEmail"
            android:hint="Email"
            android:layout_weight="1"
            android:paddingTop="8dip"
            android:paddingBottom="8dip"
            android:paddingRight="8dip"
            android:paddingLeft="8dip"
            android:layout_marginBottom="4dip"
            android:layout_marginTop="5dip"/>
    <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:inputType="textEmailAddress"
            android:ems="10"
            android:id="@+id/etCreateEmail"
            android:hint="Email"
            android:layout_weight="1"
            android:paddingTop="8dip"
            android:paddingBottom="8dip"
            android:paddingRight="8dip"
            android:paddingLeft="8dip"
            android:layout_marginBottom="4dip"
            android:layout_marginTop="5dip"/>
    <EditText
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:inputType="textEmailAddress"
            android:ems="10"
            android:id="@+id/etCreateEmail"
            android:hint="Email"
            android:layout_weight="1"
            android:paddingTop="8dip"
            android:paddingBottom="8dip"
            android:paddingRight="8dip"
            android:paddingLeft="8dip"
            android:layout_marginBottom="4dip"
            android:layout_marginTop="5dip"/>
    <EditText
        android:id="@+id/etChooseUsername"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="4dip"
        android:layout_weight="1"
        android:ems="10"
        android:hint="Choose a username"
        android:inputType="text"
        android:paddingBottom="8dip"
        android:paddingLeft="8dip"
        android:paddingRight="8dip"
        android:paddingTop="8dip" />
    <EditText
        android:id="@+id/etChoosePassword"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="4dip"
        android:layout_weight="1"
        android:ems="10"
        android:hint="Choose a password"
        android:inputType="textPassword"
        android:paddingBottom="8dip"
        android:paddingLeft="8dip"
        android:paddingRight="8dip"
        android:paddingTop="8dip" />
    <EditText
        android:id="@+id/etRetypePassword"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="4dip"
        android:layout_weight="1"
        android:ems="10"
        android:hint="Re-type password"
        android:inputType="textPassword"
        android:paddingBottom="8dip"
        android:paddingLeft="8dip"
        android:paddingRight="8dip"
        android:paddingTop="8dip" />

    <Button
        android:id="@+id/bCreateAccountConfirm"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_weight="1"
        android:background="@drawable/button_selector"
        android:padding="0dip"
        android:text="Create Account"
        android:textColor="#ffffff"
        android:textStyle="bold"
        android:typeface="sans" />
</LinearLayout>
</ScrollView>
<!-- END BODY -->

Here's what it looks like when I try to scroll all the way down (there's supposed to be a slim section of white beneath the button & then a slim section of grey margin)

Answer 1

android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"

really solved the issue for me, no NestedView or padding is required. Keep ScrollView's direct child view's layout_height as "wrapped_content" though.