隐藏操作栏，但在下拉时显示 [英] Hide action bar, but show when pulled down

问题描述

我设置了一个操作栏，效果很好.我希望它可以隐藏起来，直到用户执行从屏幕顶部向下拉动之类的操作，然后再显示它.

I have an action bar set up and it works great. I'd like to have it so that it is hidden until the user does something like pull down from the top of the screen, and then show it.

我找不到讨论此事的任何资源.

I can't find any resources which discuss doing this.

推荐答案

您还可以使用折叠工具栏

You can also use Collapsing Toolbar

<android.support.design.widget.AppBarLayout
       android:layout_width="match_parent"
       android:layout_height="180dp"
       android:theme="@style/ThemeOverlay.AppCompat.Dark">

       <android.support.design.widget.CollapsingToolbarLayout
           android:id="@+id/collapse_toolbar"
           android:layout_width="match_parent"
           android:layout_height="match_parent"
           app:layout_scrollFlags="scroll|exitUntilCollapsed">

           <android.support.v7.widget.Toolbar
               android:id="@+id/toolbar"
               android:layout_width="match_parent"
               android:layout_height="?attr/actionBarSize"
               app:layout_collapseMode="pin" />
       </android.support.design.widget.CollapsingToolbarLayout>
   </android.support.design.widget.AppBarLayout>

这篇关于隐藏操作栏，但在下拉时显示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！