滚动视图底部的Android按钮

Question

I have a ScrollView with a RelativeLayout. I'm gonna have 2 / 3 buttons at the bottom, but they wont stay at the bottom. Can anyone see where i did things wrong?

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <RelativeLayout
        android:id="@+id/activity_bygg"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">



        <Button
            android:layout_width="110dp"
            android:layout_height="wrap_content"
            android:text="@string/hjem"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"/>

        <Button
            android:layout_width="110dp"
            android:layout_height="wrap_content"
            android:text="@string/neste"
            android:layout_alignParentEnd="true"
            android:layout_alignParentBottom="true"/>


    </RelativeLayout>
</ScrollView>

Answer 1

if you check correctly the buttons are at the bottom of the relative layout. The problem is the scrollview that is not taking full screen. Check this xml:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fillViewport="true">


    <RelativeLayout
        android:id="@+id/activity_bygg"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">


        <Button
            android:layout_width="110dp"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:text="@string/hjem"/>

        <Button
            android:layout_width="110dp"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignParentEnd="true"
            android:text="@string/neste"/>


    </RelativeLayout>
</ScrollView>

If you notice i have inserted the android:fillViewport="true" at scrollview

Answer 2

just try to change the height attribute of relative layout to match_parent:

    <?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <RelativeLayout
        android:id="@+id/activity_bygg"
        android:layout_width="match_parent"
        android:layout_height="match_parent">



        <Button
            android:layout_width="110dp"
            android:layout_height="wrap_content"
            android:text="@string/hjem"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"/>

        <Button
            android:layout_width="110dp"
            android:layout_height="wrap_content"
            android:text="@string/neste"
            android:layout_alignParentEnd="true"
            android:layout_alignParentBottom="true"/>


    </RelativeLayout>
</ScrollView>

Answer 3

使用android：fillViewPort =“ true” ....这会扩展布局以覆盖整个滚动视图...