I am trying to implement Google's newest design tricks with CoordinatorLayout and have problems with scrolling and parallax effect.
After Activity is displayed, everything looks ok but the problem occurs when I try to scroll. It seems the bottom View is not expanded correctly and after it's scrolled up, empty space appears below. Bottom View seems to be big only how much it has on initial display between top View and nav bar.
It looks something like this:
Relevant code:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<CoordinatorLayout
android:layout_height="match_parent"
android:layout_width="match_parent">
<AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:expandedTitleMarginStart="72dp"
app:expandedTitleMarginEnd="16dp">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_collapseMode="parallax"/>
</CollapsingToolbarLayout>
</AppBarLayout>
<ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</CoordinatorLayout>
</FrameLayout>
This weird behavior happens randomly. Sometimes bottom View is scrollable normally and that empty space doesn't appear. What am I doing wrong? Thanks.
I had the same problem and I noticed that every layout with this problem had
android:fitsSystemWindows="true"
on CoordinatorLayout
Removing it fixed my problem everywhere.