CoordinatorLayout children are not fullscreen

Question

I have an Activity which is displayed fullscreen. This works perfectly with many layouts I have tried, except for when the CoordinatorLayout is the root ViewGroup. The CoordinatorLayout itself has both width and height set to match_parent and it takes the whole screen as it should. But the child views that should have the same size as the CoordinatorLayout are laid as if the navigation bar was still visible.

Is there a way to make the child views resize with the CoordinatorLayout? Obviously fitSystemWindows does not change a thing as this is probably caused by the CoordinatorLayout implementation, other ViewGroups work well. I have tried to create custom Behavior class but I was not successful with that.

I use this code to make my Activity fullscreen:

@Override
protected void onResume() {
    super.onResume();
    int uiOptions = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_FULLSCREEN
            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
    getWindow().getDecorView().setSystemUiVisibility(uiOptions);
}

This is a simple layout used to generate the image:

<android.support.design.widget.CoordinatorLayout 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"
    android:fitsSystemWindows="true"
    android:background="#F00">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        android:scaleType="centerCrop"
        android:src="@drawable/background_sky_light" />

</android.support.design.widget.CoordinatorLayout>

Answer 1

change android:fitsSystemWindows to false if you are using coodinatorlayout android:fitsSystemWindows="false"