小编ops*_*nes的帖子

正如我在标题上所解释的那样,如果我在向下拉动后立即从下往上快速滚动,在折叠的工具栏上滚动停止.我希望它能够扩展.如果我顺畅地拉动nestedscrollview,没有问题,工具栏会正确扩展.我在nestedscrollview中有recycleler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 …