在AppBarLayout后面滚动RecyclerView

时间:2016-11-06 23:15:34

标签: android android-layout android-recyclerview android-coordinatorlayout android-appbarlayout

我正试图在此URL(Google Design官方网站)的“行为部分”中实现类似视频的效果。我想,这与Google Photo相同的效果是,RecyclerView顶部的搜索栏在向上/向下滚动时消失/出现

我不知道如何获得它,我从CoordinatorLayoutAppBarLayout开始,但我无法在AppBarLayout后面看到RecyclerView,它始终保持白色,覆盖RecyclerView为显示如下(结果和代码[编辑:添加图像与布局图层])。

或者是自定义CoordinatorLayout.Behavior

任何帮助或建议将不胜感激,谢谢

result

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"/>

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/transparent">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsingToolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_scrollFlags="scroll|enterAlways"
            android:background="@android:color/transparent">

            <SearchView
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="@android:color/holo_green_light"
                android:layout_marginTop="40dp"
                android:layout_marginStart="16dp"
                android:layout_marginEnd="16dp"
                android:layout_marginBottom="16dp"/>

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

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

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

示例布局

enter image description here

2 个答案:

答案 0 :(得分:3)

绝对是自定义CoordinatorLayout.Behavior。 经过一些搜索和阅读(most importantsome inspirationsmore inspirationsthe foundamentals)后,我通过以下布局得到了我想要的内容

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipToPadding="false"
        android:paddingEnd="@dimen/activity_horizontal_margin"
        android:paddingStart="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/grid_spacing_header"/>

    <SearchView
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:layout_marginEnd="@dimen/activity_horizontal_margin"
        android:layout_marginStart="@dimen/activity_horizontal_margin"
        android:layout_marginTop="@dimen/searchbar_top"
        app:layout_behavior=".SearchBarBehavior"/>

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

使用我自己的SearchBarBehavior,它扩展了CoordinatorLayout.Behavior [代码仍然不完整]

答案 1 :(得分:0)

尝试将CoordinatorLayout设置为透明

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/transparent">