Make it work with CoordinatorLayout

[jahirfiquitiva]

Hi ...

Well, I'm not sure if it's an issue or my error, but I want to use CoordinatorLayout in my layout, and when using the FastScroller, it appears in the left side, instead of the right side.

<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"
    tools:context="jahirfiquitiva.iconshowcase.activities.SearchActivity">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:elevation="@dimen/toolbar_elevation"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

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

    <android.support.v7.widget.RecyclerView
        android:id="@+id/searchGrid"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipToPadding="false"
        android:fitsSystemWindows="true"
        android:scrollbars="none"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />

<xyz.danoz.recyclerviewfastscroller.vertical.VerticalRecyclerViewFastScroller
      android:id="@+id/fast_scroller"
      android:layout_width="16dp"
      android:layout_height="match_parent"
      android:layout_alignParentRight="true"
      android:layout_alignParentEnd="true"
      />

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

And 2 things that I would like you to help me fix and/or for you to improve the lib.

1. RecyclerView.setOnScrollListener is deprecated.... what could be used now?
2. Make the FastScroller hide if the items are few.

Thank you.

[iAlex97]

Hi,
While I cannot help you with all of your questions, I can answer 2 of them:

1. setOnScrollListener is deprecated because you can now add multiple scroll listeners with addOnScrollListener
2. Try to wrap your CoordinatorLayout and RecyclerViewFastScroller in a LinearLayout or RelativeLayout to overcome your issue with the positioning.

[marcin-kozinski]

I have this exact situation and I fixed it by wrapping the fast scroller in a simple FrameLayout, like this:

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="?actionBarSize">

        <xyz.danoz.recyclerviewfastscroller.vertical.VerticalRecyclerViewFastScroller
            ... />

    </FrameLayout>

[taciosd]

Thank you!

For me, it worked by wrapping the fastscroller in a RelativeLayout, like this:

<RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_behavior="@string/appbar_scrolling_view_behavior">

            <xyz.danoz.recyclerviewfastscroller.vertical.VerticalRecyclerViewFastScroller
                android:id="@+id/fast_scroller"
                android:layout_width="15dp"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true" />
        </RelativeLayout>

And if you use app:layout_scrollFlags in your Toolbar/AppBar, you have to put the app:layout_behavior="@string/appbar_scrolling_view_behavior" in the RelativeLayout, otherwise the FastScroller handle will be hidden under the Toolbar in the first positions of scroll.