Xtykutl

I try to hide the HEADER layout when I scroll on a recyclerview. In order to hide the layout I use an animation in the "onScrolled" event :

-Show :

layout.animate().translationY(-layout.getHeight()).setInterpolator(new AccelerateInterpolator(2));

-Hide :

layout.animate().translationY(0).setInterpolator(new DecelerateInterpolator(2));

It's working in a way but I've still got a blank space where the HEADER was.

liste_view_layout :

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:background="@color/white"

android:orientation="vertical"

android:weightSum="1">



   <!-- HEADER -->

   <include layout="@layout/header_list_view" />



    <FrameLayout

        android:layout_width="match_parent"

        android:layout_height="0dp"

        android:layout_weight="1">



        <include layout="@layout/common_recyclerview_layout"/>

    </FrameLayout>

</LinearLayout>

header_list_view :

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:id="@+id/header_list_view_layout_container"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="vertical"

android:animateLayoutChanges="true"

>

  <TopBarHeaderView

  android:id="@+id/header_list_view_layout"

  android:layout_width="match_parent"

  android:layout_height="wrap_content"

  android:orientation="vertical">

       <FrameLayout

         android:id="@+id/subcategory_header_section"

         android:layout_width="match_parent"

         android:layout_height="wrap_content">

         <include layout="@layout/header_section"/>

       </FrameLayout>

    </TopBarHeaderView>

</LinearLayout>

Animations changes the way the view is drawn, but its true location still remains the same. So while it looks like the header moved or was hidden, it's still technically there.

To solve this you can either:

Set animation.setFillAfter(true);

or

animation.setAnimationListener(new Animation.AnimationListener() {

    @Override

    public void onAnimationStart(Animation animation) {



    }



    @Override

    public void onAnimationEnd(Animation animation) {

        //set view visibility to `GONE`

    }



    @Override

    public void onAnimationRepeat(Animation animation) {



    }

});