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I'm using a ScrollView in a layout, and am attempting to use the new CoordinatorLayout from the design support library.
My layout file looks like this:
<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"> <ScrollView 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="wrap_content" android:orientation="vertical"> ... </LinearLayout> </ScrollView> <android.support.design.widget.AppBarLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <android.support.v7.widget.Toolbar ... /> </android.support.design.widget.AppBarLayout> </android.support.design.widget.CoordinatorLayout> When testing this the scrollview only occupies part of the screen. What went wrong?
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The CoordinatorLayout. DefaultBehavior annotation is deprecated.
By specifying Behaviors for child views of a CoordinatorLayout you can provide many different interactions within a single parent and those views can also interact with one another. View classes can specify a default behavior when used as a child of a CoordinatorLayout by implementing the AttachedBehavior interface.
Nested scrolling is enabled by default. Show activity on this post. NestedScrollView is just like ScrollView, but in NestedScrollView we can put other scrolling views as child of it, e.g. RecyclerView. But if we put RecyclerView inside NestedScrollView, RecyclerView's smooth scrolling is disturbed.
Android CoordinatorLayout is a super-powered FrameLayout. It has a lot more to offer than it seems. It has additional level of control over it's child views. It coordinates the animations and transitions of child views with one another.
NestedScrollView is just like ScrollView, but it supports acting as both a nested scrolling parent and child on both new and old versions of Android. Nested scrolling is enabled by default.
You can use a NestedScrollView within a parent ScrollView. NestedScrollView is used when there is a need for a scrolling view inside another scrolling view. This is where it is useful, when the system needs to decide which view to scroll.
Here is an example of NestedScrollView with CoordinatorLayout:
<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.v4.widget.NestedScrollView android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior"> <!-- Your scrolling content --> </android.support.v4.widget.NestedScrollView> <android.support.design.widget.AppBarLayout android:layout_height="wrap_content" android:layout_width="match_parent"> <android.support.v7.widget.Toolbar ... app:layout_scrollFlags="scroll|enterAlways"/> <android.support.design.widget.TabLayout ... app:layout_scrollFlags="scroll|enterAlways"/> </android.support.design.widget.AppBarLayout> </android.support.design.widget.CoordinatorLayout> The standard ScrollView is only meant to be used as a parent. You need to change the ScrollView to a android.support.v4.widget.NestedScrollView.
An example can be seen in the reference documentation for AppBarLayout.
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