Develop Reference

Transparent Toolbar over RecyclerView is not hidding when scrolling

I've some troubles trying to hide toolbar when user scrolls over the recyclerView.
The toolbar is transparent and is over the recyclerView (through FrameLayout). I've searched a lot but I haven't found any solution to solve this incorrect behaviour.
Currently, I've this xml:
<android.support.design.widget.CoordinatorLayout 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:orientation="vertical"
app:statusBarBackground="#android:color/transparent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:fitsSystemWindows="true">
<include layout="#layout/toolbar_activity" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</FrameLayout>
</android.support.design.widget.CoordinatorLayout>
With this code, the toolbar is fixed at the top and it's not affected by app:layout_behavior="#string/appbar_scrolling_view_behavior". I've tried moving that attribute to the FrameLayout but in this case, the recyclerview is below the toolbar, not behind it.
Any idea of how can I solve this? I'm going crazy...

set property
app:layout_scrollFlags="scroll|enterAlways"
to child view of android.support.design.widget.AppBarLayout

Create a custom class and then extend RecyclerView.OnScrollListener
public class ScrollListener extends RecyclerView.OnScrollListener {
public ScrollListener() {
}
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
switch (newState) {
case RecyclerView.SCROLL_STATE_IDLE:
System.out.println("The RecyclerView is not scrolling");
break;
case RecyclerView.SCROLL_STATE_DRAGGING:
System.out.println("Scrolling now");
break;
case RecyclerView.SCROLL_STATE_SETTLING:
System.out.println("Scroll Settling");
break;
}
}
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
if (dy > 0) {
//scrolling downwards: hide/show toolbar
System.out.println("Scrolled Downwards");
} else if (dy < 0) {
//scrolling downwards: hide/show toolbar
}
}
}
Attach listener to recycler view
mRecyclerView.addOnScrollListener(new ScrollListener());

Add these scroll flags to child of your app bar layout
app:layout_scrollFlags="scroll|enterAlways|snap"

Change Toolbar alpha on scroll android

I want to implement an effect similar to the wikipedia and netflix apps, where the toolbar is transparent in the details activity but fades in as the user scrolls down the content. The toolbar's menu items are visible all the time.
This is my layout file:
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="?android:attr/actionBarSize">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/detail_view_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:fitsSystemWindows="true"/>
</android.support.design.widget.CoordinatorLayout>
The activity contents are placed inside of the NestedScrollView using a fragment transaction.
This is my details activity:
public class DetailActivity extends SearchBaseActivity {
private static final String RESOURCE = "resource";
#BindView(R.id.detail_view_container)
NestedScrollView mContainer;
#BindView(R.id.toolbar)
Toolbar mToolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_detail);
ButterKnife.bind(this);
Media media = getIntent().getParcelableExtra(RESOURCE);
setSupportActionBar(mToolbar);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setTitle(null);
}
}
public static Intent getStartIntent(Context context, Media media) {
return new Intent(context, DetailActivity.class).putExtra(RESOURCE, media);
}
}
Can you help me to figure this out, please?
Thank you!

I am trying to find a nice way to get the same transition from translucent to opaque status bar when scrolling the content by simply using the CoordinatorLayout but so far I haven't find it.
I did a really basic implementation by adding a scrolllistener to the NestedScrollView:
NestedScrollView nsv = (NestedScrollView) findViewById(R.id.detail_view_container);
nsv.setOnScrollChangeListener(new NestedScrollView.OnScrollChangeListener() {
#Override
public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
int color = Color.parseColor("#FF2D2D2D"); // ideally a global variable
if (scrollY < 256) {
int alpha = (scrollY << 24) | (-1 >>> 8) ;
color &= (alpha);
}
toolbar.setBackgroundColor(color);
}
});
This implementation starts adding opacity to the toolbar as the Y-scroll on the NestedScrollView increases.

Android design Library AppBar scrolling behavior enterAlways

I am using the latest version of the design support library (23.1.1) and I am facing an issue when I use the CollapsingToolbarLayout with the enterAlways scroll flag. Basically, when you scroll back up, the view appears but if also leaves a empty white space at top.
Normal View:
After scrolling down and then back up (notice the whitespace below status bar):
MainActivity.java
public class MainActivity extends AppCompatActivity {
AppBarLayout appBar;
View expandedView;
Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
setTitle("");
initViews();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private void initViews() {
appBar = (AppBarLayout) findViewById(R.id.appBar);
appBar.addOnOffsetChangedListener(appBarOffsetChangedListener);
expandedView = findViewById(R.id.expandedView);
RecyclerView rv = (RecyclerView) findViewById(R.id.rv);
rv.setLayoutManager(new LinearLayoutManager(this));
rv.setAdapter(new DummyAdapter());
}
private AppBarLayout.OnOffsetChangedListener appBarOffsetChangedListener = new AppBarLayout.OnOffsetChangedListener() {
#Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
int maxOffset = appBar.getTotalScrollRange();
verticalOffset = Math.abs(verticalOffset);
if(verticalOffset > maxOffset)
return;
float percentage = verticalOffset / (float) maxOffset;
if(expandedView!=null)
expandedView.setAlpha(1 - percentage);
}
};
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:fitsSystemWindows="true"
tools:context="com.media2359.fragmenttoolbarchange.MainActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBar"
android:layout_width="match_parent"
android:layout_height="180dp"
android:background="#color/colorPrimaryDark"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsingToolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:layout_scrollFlags="scroll|exitUntilCollapsed|enterAlways">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin">
</android.support.v7.widget.Toolbar>
<RelativeLayout
android:id="#+id/expandedView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:paddingLeft="#dimen/toolbar_text_margin_left"
android:paddingTop="#dimen/toolbar_text_margin_top"
tools:background="#color/colorPrimaryDark">
<TextView
android:id="#+id/tvName"
style="#style/TextAppearance.AppCompat.Headline"
android:layout_width="#dimen/toolbar_text_width"
android:layout_height="wrap_content"
android:text="Hello" />
<TextView
android:id="#+id/tvTime"
style="#style/TextAppearance.AppCompat.Body1"
android:layout_width="#dimen/toolbar_text_width"
android:layout_height="wrap_content"
android:layout_below="#id/tvName"
android:layout_marginTop="7dp"
android:text="04 Feb, Tuesday evening" />
</RelativeLayout>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:listitem="#layout/item_dummy" />
</android.support.design.widget.CoordinatorLayout>
Using enterAlwaysCollapsed along with enterAlways avoids this issue but I want the full view to come back because in the actual app, the expanded section is way smaller.
Another thing that I have noticed is that, the height of the whitespace is equal to the height to the toolbar.
EDIT 1
I replaced exitUntilCollapsed with snap and then there wasn't any white space but then the toolbar doesn't pin and scrolls away
EDIT 2
Looks like this is an issue with the Design Library: CollapsingToolbarLayout enterAlways not supported
Temporary Workaround: Cheesesquare: enterAlways produces wrong layout

Perhaps that's because of:
enterAlways
Which the codepath/android_guides says:
enterAlways: The view will become visible when scrolling up. This flag
is useful in cases when scrolling from the bottom of a list and
wanting to expose the Toolbar as soon as scrolling up takes place.
Maybe you wanna try this: (standard way)
app:layout_scrollFlags="scroll|exitUntilCollapsed"
Honestly, I didn't see somebody is using enterAlways in CollapsingToolbarLayout in my whole development life.Especially, with those two flags:
app:layout_scrollFlags="scroll|exitUntilCollapsed|enterAlways"
Otherwise, It could be a bug and needs the Google's staffs to answer about it.

How to make the Toolbar snap into view or out of view when using Google Design Library?

I am trying to achieve an effect like WhatsApp has, where the Toolbar (when scrolled) will clip into view magnetlike, or out of view magnetlike.
What I have im my MainActivity XML:
DrawerLayout - Base Layout
CoordinatorLayout - Layout for the Appbar and Toolbar and Tabs
AppBarLayout - For holding Toolbar and Tabs
Toolbar - has THIS flag: app:layout_scrollFlags="scroll|enterAlways"
SlidingTabLayout - Displays tabs
ViewPager - For tabs
RecyclerView - For coordinatorlayout
Now dont get me wrong, it works, when I scroll down the toolbar gets pushed out of view but say I stop scrolling halfway, then the toolbar just sits there half hidden out of view and the other half in view..
How can I approach solving this problem, as I want it to either snap out of view or into view.

This feature has been added in 23.1.0 version of android support library.
From release notes:
Added edge snapping support to the AppBarLayout class by adding the
SCROLL_FLAG_SNAP constant. When scrolling ends, if the view is only
partially visible, the view is snapped and scrolled to its closest
edge.
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways|snap" />
-----
-----
For more info: http://android-developers.blogspot.in/2015/10/android-support-library-231.html

EDIT: as of support 23.1.0 this is no longer needed. See this answer instead.
One possible way to solve this is customizing the Behavior set to your AppBarLayout.
<android.support.design.widget.AppBarLayout
app:layout_behavior="com.myapp.AppBarLayoutSnapBehavior"
android:layout_width="match_parent"
android:layout_height="wrap_content">
...
Your AppBarLayoutSnapBehavior would change the default behavior of AppBarLayout.Behavior, by adding the snap logic when the scroll stops.
Hopefully, the code below is self explanatory.
package com.myapp;
public class AppBarLayoutSnapBehavior extends AppBarLayout.Behavior {
private ValueAnimator mAnimator;
private boolean mNestedScrollStarted = false;
public AppBarLayoutSnapBehavior(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
public boolean onStartNestedScroll(CoordinatorLayout coordinatorLayout, AppBarLayout child,
View directTargetChild, View target, int nestedScrollAxes) {
mNestedScrollStarted = super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target, nestedScrollAxes);
if (mNestedScrollStarted && mAnimator != null) {
mAnimator.cancel();
}
return mNestedScrollStarted;
}
#Override
public void onStopNestedScroll(CoordinatorLayout coordinatorLayout, AppBarLayout child, View target) {
super.onStopNestedScroll(coordinatorLayout, child, target);
if (!mNestedScrollStarted) {
return;
}
mNestedScrollStarted = false;
int scrollRange = child.getTotalScrollRange();
int topOffset = getTopAndBottomOffset();
if (topOffset <= -scrollRange || topOffset >= 0) {
// Already fully visible or fully invisible
return;
}
if (topOffset < -(scrollRange / 2f)) {
// Snap up (to fully invisible)
animateOffsetTo(-scrollRange);
} else {
// Snap down (to fully visible)
animateOffsetTo(0);
}
}
private void animateOffsetTo(int offset) {
if (mAnimator == null) {
mAnimator = new ValueAnimator();
mAnimator.setInterpolator(new DecelerateInterpolator());
mAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator animation) {
setTopAndBottomOffset((int) animation.getAnimatedValue());
}
});
} else {
mAnimator.cancel();
}
mAnimator.setIntValues(getTopAndBottomOffset(), offset);
mAnimator.start();
}
}
The only thing is, the scroll view (in my case a RecyclerView) snaps along with the Toolbar. I actually like it this way, but I'm not sure that's what you want.

I just hided action bar layout in main activity and set span for CollapsingToolbarLayout.
it works for me.
in main activity
setSupportActionBar(mToolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().hide();
CollapsingToolbarLayout collapsingToolbar =
(CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
collapsingToolbar.setTitle("Name");
loadBackdrop();
and layout_activity_main
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="#dimen/detail_backdrop_height"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|snap"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="48dp"
app:expandedTitleMarginEnd="64dp">
<ImageView
android:id="#+id/backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

CoordinatorLayout status bar padding disappears from ViewPager 2nd page

EDIT of 01/02/2016: Bug should be resolved by applying the code provided by Android Team: https://stackoverflow.com/a/35132144/3397345, see accepted answer below.
EDIT of 27/01/2016: Bug still not resolved in v23.1.1. Solutions provided until now don't give transparent status bar (which is the purpose of this layout) or are too complex. A new screen-record of the bug available here: https://www.youtube.com/watch?v=76IxhlUx8MQ
EDIT of 23/07/2015: Support Design Library v22.2.1 didn't fix :-( Also this happens on toolbar quick return on MainActivity!
EDIT of 28/07/2015: Linked question: CoordinatorLayout status bar padding disappears during fragment transactions
From example repository https://github.com/chrisbanes/cheesesquare I've implemented the ViewPager on Detail Activity. It works, but the StatusBar disappears from 2nd page as you see in the picture only in Lollipop devices, Any idea?
I use android:fitsSystemWindows="true" but it does work only on first page :-(
activity_detail_viewpager.xml
if I put here fitsSystemWindows, StatusBar is not transparent anymore, but it works (status bar padding is not lost). But I would like it transparent!
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:overScrollMode="ifContentScrolls"/>
</android.support.design.widget.CoordinatorLayout>
activity_detail_fragment.xml
<CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="#dimen/detail_backdrop_height"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="48dp"
app:expandedTitleMarginEnd="64dp">
<ImageView
android:id="#+id/back_item"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingTop="24dp">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="#dimen/card_margin">
...
</android.support.v7.widget.CardView>
...
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_margin="#dimen/fab_margin"
android:clickable="true"
android:src="#drawable/ic_discuss"
app:layout_anchor="#id/appbar"
app:layout_anchorGravity="bottom|end"
app:borderWidth="0dp"/>
</android.support.design.widget.CoordinatorLayout>
style.xml v21
<resources>
<style name="AppTheme" parent="AppTheme.Base">
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">#android:color/transparent</item>
</style>
</resources>

Solution proposed by Android Team in the answer of my reported defect. This code should finally work.
ViewPager mViewPager;
ViewCompat.setOnApplyWindowInsetsListener(mViewPager,
new OnApplyWindowInsetsListener() {
#Override
public WindowInsetsCompat onApplyWindowInsets(View v,
WindowInsetsCompat insets) {
insets = ViewCompat.onApplyWindowInsets(v, insets);
if (insets.isConsumed()) {
return insets;
}
boolean consumed = false;
for (int i = 0, count = mViewPager.getChildCount(); i < count; i++) {
ViewCompat.dispatchApplyWindowInsets(mViewPager.getChildAt(i), insets);
if (insets.isConsumed()) {
consumed = true;
}
}
return consumed ? insets.consumeSystemWindowInsets() : insets;
}
});

Like sidecarcat, I ran into a similar issue (using v23.1.1).
I post here a workaround by using the code of sidecarcat and add some code to remove superflous padding in some cases.
// in onCreateView: adjust toolbar padding
final int initialToolbarHeight = mToolbar.getLayoutParams().height;
final int initialStatusBarHeight = getStatusBarHeight();
mToolbar.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int[] locToolbar = new int[2];
mToolbar.getLocationOnScreen(locToolbar);
int yToolbar = locToolbar[1];
int topPaddingToolbar = mToolbar.getPaddingTop();
if (isAdded()) {
//normal case : system status bar padding on toolbar : yToolbar = initialStatusBarHeight && topPaddingToolbar = 0
//abnormal case : no system status bar padding on toolbar -> toolbar behind status bar => add custom padding
if (yToolbar != initialStatusBarHeight && topPaddingToolbar == 0) {
mToolbar.setPadding(0, initialStatusBarHeight, 0, 0);
mToolbar.getLayoutParams().height = initialToolbarHeight + initialStatusBarHeight;
}
//abnormal case : system status bar padding and custom padding on toolbar -> toolbar with padding too large => remove custom padding
else if (yToolbar == initialStatusBarHeight && topPaddingToolbar == initialStatusBarHeight) {
mToolbar.setPadding(0, 0, 0, 0);
mToolbar.getLayoutParams().height = initialToolbarHeight;
}
}
}
});
return mRootView;
}
public int getStatusBarHeight() {
int result = 0;
int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
if (resourceId > 0) {
result = getResources().getDimensionPixelSize(resourceId);
}
return result;
}

I ran into a similar issue (using v23.0.1). In my case, the problem occurs on the first page as well. The workaround I settled on was to adjust the padding and height of the toolbar when the fragment is created.
// in onCreateView: adjust toolbar padding
Toolbar toolbar = (Toolbar) mRootView.findViewById(R.id.toolbar);
toolbar.setPadding(0, getStatusBarHeight(), 0, 0);
toolbar.getLayoutParams().height = toolbar.getLayoutParams().height + getStatusBarHeight();
return mRootView;
}
public int getStatusBarHeight() {
int result = 0;
int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
if (resourceId > 0) {
result = getResources().getDimensionPixelSize(resourceId);
}
return result;
}

Seems the solution for this is simple
You have
android:fitsSystemWindows="true"
In the fragment CoordinateLayoutView
remove it from here and put in the Activity's root view.
This should now all work