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我想建立一個屏幕,當向上滾動會逐漸隱藏工具欄和向上滾動時,工具欄將再次倒計時。我正在做這樣的事情(如下所示),但工具欄始終保留並覆蓋內容。我們如何讓它在我們向下滾動時逐漸消失。滾動視圖行爲不適用SwipeRefreshLayout

你能告訴我我要去哪裏嗎?

<android.support.v4.widget.DrawerLayout 
android:id="@+id/drawer_layout" 
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:layout_width="match_parent" 
android:layout_height="match_parent" 
android:fitsSystemWindows="true"> 
<android.support.design.widget.CoordinatorLayout 
xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/apk/res-auto" 
android:id="@+id/toolbar_container" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:orientation="vertical" 
> 
<android.support.design.widget.AppBarLayout 
    android:id="@+id/appBar" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" 
    android:fitsSystemWindows="true"> 
    <android.support.v7.widget.Toolbar 
     android:id="@+id/toolbar" 
     android:layout_width="match_parent" 
     android:layout_height="?attr/actionBarSize" 
     android:background="?attr/colorPrimary" 
     app:popupTheme="@style/ThemeOverlay.AppCompat.Light" 
     app:layout_scrollFlags="scroll|enterAlways" > 

    </android.support.v7.widget.Toolbar> 

</android.support.design.widget.AppBarLayout> 

<android.support.v4.widget.SwipeRefreshLayout 
    android:id="@+id/swipe_refresh_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    app:layout_behavior= 
     "@string/appbar_scrolling_view_behavior"> 
    <android.support.v7.widget.RecyclerView 
     android:id="@+id/recycler_view" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:clipToPadding="false" 
     android:scrollbarStyle="outsideOverlay" 
     android:paddingLeft="@dimen/list_side_margin" 
     android:paddingRight="@dimen/list_side_margin" 
     android:paddingBottom="28dp"></android.support.v7.widget.RecyclerView</android.support.v4.widget.SwipeRefreshLayout></android.support.design.widget.CoordinatorLayout</android.support.v4.widget.DrawerLayout> 

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