I'm developing an Android app using the new design library. I would like to create a similar scrolling effect that is used in the new Google Photos app. I would like the AppBarLayout to scroll off of screen completely so that the recycler view would scroll behind the status bar.
I've set windowTranslucentStatus to true in the app's theme. Here's the xml of the main activity:
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
Here's what this looks like when scrolled down:
The Toolbar doesn't completely disappear.
Thanks for help!
Simply use app:elevation="0dp" inside "AppBarLayout" to remove the shadow.
What is the difference between the toolbar and the action bar? The most obvious difference between the two is the updated visual design of the toolbar. The toolbar no longer includes an icon on the left side and decreases some of the spacing between the action items on the right side.
androidx.appcompat.widget.Toolbar. A standard toolbar for use within application content. A Toolbar is a generalization of action bars for use within application layouts.
AppBarLayout is a vertical LinearLayout which implements many of the features of material designs app bar concept, namely scrolling gestures. Children should provide their desired scrolling behavior through AppBarLayout.
Here's what i used in my application
<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar"
android:layout_width="match_parent"
android:layout_height="@dimen/app_bar_height"
android:fitsSystemWindows="true"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/toolbar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlwaysCollapsed">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
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