Android Floating Action Button Behaviour with Adview - android-layout

Question

I'm sorry if this has been already answered but it's been a while and I'm still searching. Since the FAB has a behaviour class you can assign to it which will work with scrolling inside a coordinator layout, I was wondering if it was possible to include behaviour to make the FAB automatically get placed above an adview when it is visible similar to how it reacts to a snack bar. Thank you in advance.

Answer 1

Work Around!
I figured out a work around as I was just playing around some time back, even forgot about the question. Instead of putting my adview inside a container with the rest of my views I simply had to wrap the coordinator view in a Relative layout and set the coordinator layout above the adview ID. I'm sure this might not be the best way to do it.
So what I ended up having is this: NB My adview is set to visibility gone by default and I only set the visibility when the adrequest is complete
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.CoordinatorLayout
android:layout_above="#+id/ad_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:visibility="gone"
app:layout_behavior="utils.FabBehavior_Main"
app:rippleColor="#color/fab_ripple"
app:srcCompat="#drawable/ic_fab" />
</android.support.design.widget.CoordinatorLayout>
<com.google.android.gms.ads.AdView
android:id="#+id/ad_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:visibility="gone"
app:adSize="SMART_BANNER"
app:adUnitId="#string/banner_ad_unit_id"
/>
</RelativeLayout>
The utils.FabBehavior_Main is the relative package class that contains the behaviour properties for the view, utils being the package. So in your own application you could have the name space com.myapp.utils.ScrollAwareFab which would have be like this:
public class ScrollAwareFab extends FloatingActionButton.Behavior {
public ScrollAwareFab(Context context, AttributeSet attrs) {
super();
}
#Override
public boolean onStartNestedScroll(CoordinatorLayout coordinatorLayout,
FloatingActionButton child, View directTargetChild, View target, int nestedScrollAxes) {
return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL ||
super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target,
nestedScrollAxes);
}
#Override
public void onNestedScroll(CoordinatorLayout coordinatorLayout, FloatingActionButton child,
View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed) {
super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed,
dyUnconsumed);
if (dyConsumed > 0 && child.getVisibility() == View.VISIBLE) {
child.hide(new FloatingActionButton.OnVisibilityChangedListener() {
/**
* Called when a FloatingActionButton has been hidden
*
* #param fab the FloatingActionButton that was hidden.
*/
#Override
public void onHidden(FloatingActionButton fab) {
super.onShown(fab);
fab.setVisibility(View.INVISIBLE);
}
});
} else if (dyConsumed < 0 && child.getVisibility() != View.VISIBLE) {
child.show();
}
}
}