Recyclerview与内部嵌套的scrollview? [英] Recyclerview with inside nested scrollview?
问题描述
我正在将多个View-holder放置在嵌套滚动视图内的回收站中,由于嵌套滚动, getItemViewType(), onBindViewHolder()回收站视图的自然行为有所变化在启动回收站适配器时,所有项目都在 onBindViewHolder()内部调用,例如,我有20个项目,在正常情况下,启动时仅调用了三个项目,但在嵌套滚动视图中,所有这20个项目视图是在首次加载时创建的.
I am using multiple View-holder inside recycler which placed inside nested scroll view,There is a change in Natural behaviour of onBindViewHolder() Recycler view because of Nested Scroll,getItemViewType() all items are called inside onBindViewHolder() when initiate recycler adapter,For Example I have 20 Items means in normal scenario only three items called when initiate,but in case of nested scroll view all 20 views create on first load.
Xml文件
<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/main_content"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/light_gray_vd">
<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
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="wrap_content"
app:contentScrim="@color/primaryColor"
app:expandedTitleMarginEnd="16dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax">
<include
android:id="@+id/inc_gallery"
layout="@layout/proj_galery_new"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</FrameLayout>
<View
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize" />
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar1"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="top"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
<include
android:id="@+id/toolbar_header_view"
layout="@layout/header_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/vde_mv_scroll_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<FrameLayout
android:id="@+id/rlCollapseScroll"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/view_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v7.widget.RecyclerView>
</FrameLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
推荐答案
删除NestedScrollView
和frameLayout
,并为recycleView
设置app:layout_behavior="@string/appbar_scrolling_view_behavior"
像这样:
remove NestedScrollView
and frameLayout
, and set app:layout_behavior="@string/appbar_scrolling_view_behavior"
for recycleView
like this:
<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/main_content"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/light_gray_vd">
<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
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="wrap_content"
app:contentScrim="@color/primaryColor"
app:expandedTitleMarginEnd="16dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax">
<include
android:id="@+id/inc_gallery"
layout="@layout/proj_galery_new"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</FrameLayout>
<View
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize" />
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar1"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="top"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
<include
android:id="@+id/toolbar_header_view"
layout="@layout/header_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/view_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
</android.support.design.widget.CoordinatorLayout>
这篇关于Recyclerview与内部嵌套的scrollview?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!