正如我在标题中解释的那样，如果我从下到上快速滚动并在下拉后立即移开手指，则滚动会在折叠的工具栏处停止。我希望它扩大。如果我顺利拉动nestedscrollview，没有问题，工具栏可以正常展开。我在nestedscrollview 中有回收站视图。这是我的布局
<android.support.design.widget.CoordinatorLayout
android:id="@+id/detail_content"
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="160dp"
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="match_parent"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="@dimen/article_keylines"
app:expandedTitleMarginStart="@dimen/md_keylines"
app:expandedTitleMarginBottom="@dimen/article_keylines"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:expandedTitleTextAppearance="@dimen/tile_padding"
>
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/a"
android:fitsSystemWindows="true"
android:foreground="@drawable/scrim_profile"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
android:elevation="4dp"
app:layout_scrollFlags="scroll|enterAlways|snap"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/nestedscrollview"
android:background="@color/background"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<RelativeLayout
android:id="@+id/inner_relativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/md_keylines"
android:paddingRight="@dimen/md_keylines"
android:background="@color/white"
android:paddingBottom="@dimen/article_keylines"
android:paddingTop="@dimen/article_keylines"
android:focusableInTouchMode="true"
>
<TextView
android:id="@+id/tw1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/text"
android:textSize="16sp"
android:lineSpacingExtra="4sp"
android:text="Text"
android:layout_marginBottom="@dimen/md_keylines"/>
<View
android:id="@+id/divider_1"
android:layout_width="2dp"
android:layout_height="50dp"
android:background="@color/divisor"
android:layout_below="@id/tw1"
/>
<View
android:id="@+id/divider_2"
android:layout_width="2dp"
android:layout_height="50dp"
android:background="@color/divisor"
android:layout_below="@id/tw1"
android:layout_toRightOf="@+id/tw2"
android:layout_toEndOf="@+id/tw2" />
<View
android:id="@+id/divider_3"
android:layout_width="2dp"
android:layout_height="50dp"
android:background="@color/divisor"
android:layout_below="@+id/tw1"
android:layout_toRightOf="@+id/followers"
android:layout_toEndOf="@+id/followers"/>
<TextView
android:id="@+id/count"
android:gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textColor="@color/text"
android:textSize="20sp"
android:text="14"
android:lineSpacingExtra="-4sp"
android:layout_alignTop="@id/divider_1"
android:layout_marginTop="6dp"
android:layout_alignRight="@+id/experience"
android:layout_alignEnd="@+id/experience"
/>
<TextView
android:id="@+id/tw3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/text"
android:textSize="14sp"
android:text="Text"
android:paddingRight="12dp"
android:paddingEnd="12dp"
android:paddingLeft="12dp"
android:paddingStart="12dp"
android:layout_below="@id/tw2"
android:layout_toRightOf="@id/divider_1"
/>
<TextView
android:id="@+id/count2"
android:layout_toRightOf="@id/divider_2"
android:layout_toLeftOf="@id/divider_3"
android:layout_below="@id/tw1"
android:gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textColor="@color/text"
android:textSize="20sp"
android:layout_alignTop="@id/divider_1"
android:layout_marginTop="6dp"
android:text="200"
/>
<TextView
android:id="@+id/tw4"
android:layout_below="@id/tw3"
android:layout_toRightOf="@id/divider_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:textColor="@color/text"
android:textSize="14sp"
android:text="text"
android:paddingLeft="12dp"
android:paddingRight="12dp"
/>
<Button
android:id="@+id/button"
android:layout_toRightOf="@id/divider_3"
android:layout_below="@id/tw1"
android:layout_marginLeft="12dp"
android:layout_width="match_parent"
android:layout_height="38dp"
android:textColor="@color/orange_button"
android:gravity="center_vertical|start"
android:text="text"
android:textSize="16sp"
android:textAllCaps="false"
android:paddingLeft="18dp"
android:drawableLeft="@drawable/i"
android:drawablePadding="4dp"
android:layout_alignTop="@id/count"
style="?android:attr/borderlessButtonStyle"
android:background="@drawable/button"/>
</RelativeLayout>
<android.support.v7.widget.RecyclerView
android:padding="@dimen/md_keylines"
android:id="@+id/recycler_view"
android:layout_below="@id/inner_relativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<ProgressBar
android:id="@+id/progress_bar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_below="@id/inner_relativeLayout"
android:layout_marginTop="30dp"/>
</RelativeLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
提前致谢。