嵌套滚动视图在向下滚动时平滑滚动,但在向上滚动时缓慢。向上滚动时折叠工具栏(带有图像视图和框架布局)不会呈现其内容(保持空白)。我已经尝试了折叠工具栏中的每个标志。
<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:id="@+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="@+id/backdrop"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="100dp"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
android:src="@drawable/pic"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.5"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"/>
<include
android:id="@+id/framelayout"
layout="@layout/header_layout"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
android:minHeight="100dp"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<!-- Your Scrollable View -->
<android.support.v4.widget.NestedScrollView
android:id="@+id/nested"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="fill_vertical"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingTop="24dp">
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#da1b75"
android:orientation="horizontal"
android:textColor="#ffffff"
android:theme="@style/ThemeOverlay.AppCompat.Light"
app:layout_anchor="@id/appbar"
app:layout_collapseMode="pin"
app:title="">
</android.support.v7.widget.Toolbar>