最近我发现在oppo android 8.1 的手机上 元素过多的item， 滑动出现卡顿。快速滑动的时候，前几个item会顿一下，然后后面的item正常滑动 。视觉上出现刚开始顿一下的情况。浏览过的item，再次快速滑动是没有卡顿情况的。下面给出 布局文件，测试的时候复制下面的布局文件，什么都不需要做，Adapter里面什么都不用做，只需要模拟一下数据，然后滑动默认布局就可以看到卡顿情况（在低版本的手机上暂时没看到卡顿，目前就8.1的手机和华为手机上看到明显卡顿） 。烦请大神查看有没有什么方案可以解决卡顿情况。谢谢~buildToolsVersion "26.0.2"recyclerView 的版本是26.1.0，我的(Item)布局文件：<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout
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="wrap_content"
android:background="#f2f2f2">
<View
android:id="@+id/headerDivider"
android:layout_width="match_parent"
android:layout_height="10dp"/>
<!--左边正常布局-->
<include
android:id="@+id/normalLinear"
layout="@layout/layout_item_vertical_normal_first_demo"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="12dp"
app:layout_constraintHorizontal_chainStyle="spread_inside"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="@id/mid"
app:layout_constraintTop_toBottomOf="@id/headerDivider"/>
<View
android:id="@+id/mid"
android:layout_width="12dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="@+id/normalLinear2"
app:layout_constraintLeft_toRightOf="@id/normalLinear"
app:layout_constraintRight_toLeftOf="@+id/normalLinear2"
app:layout_constraintTop_toBottomOf="@id/headerDivider"/>
<!-- 右边正常布局 -->
<include
android:id="@+id/normalLinear2"
layout="@layout/layout_item_vertical_normal_second_demo"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginRight="12dp"
app:layout_constraintLeft_toRightOf="@id/mid"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/headerDivider"/></android.support.constraint.ConstraintLayout> <layout_item_vertical_normal_first_demo><?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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="wrap_content">
<ImageView
android:id="@+id/goodsImg"
android:layout_width="0dp"
android:layout_height="0dp"
android:scaleType="fitXY"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
<TextView
android:id="@+id/specialCount"
android:layout_width="50dp"
android:layout_height="22dp"
android:ellipsize="end"
android:gravity="center"
android:minWidth="50dp"
android:singleLine="true"
android:visibility="gone"
app:layout_constraintRight_toRightOf="@id/goodsImg"
app:layout_constraintTop_toTopOf="@id/goodsImg"/>
<View
android:id="@+id/content"
android:layout_width="match_parent"
android:layout_height="102dp"
app:layout_constraintTop_toBottomOf="@id/goodsImg"/>
<ImageView
android:id="@+id/delivery_free"
android:layout_width="22dp"
android:layout_height="12dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="12.5dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="@id/content"/>
<TextView
android:id="@+id/goodsTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:ellipsize="end"
android:gravity="left"
android:includeFontPadding="false"
android:maxLines="2"
android:text=""
android:textColor="@color/_333333"
android:textSize="@dimen/_15sp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="@id/content"/>
<TextView
android:id="@+id/couponValue"
android:layout_width="53dp"
android:layout_height="19dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="50dp"
android:gravity="center"
android:text="20元券"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="@id/content"/>
<TextView
android:id="@+id/salesNum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginRight="10dp"
android:layout_marginTop="52dp"
android:includeFontPadding="false"
android:text=""
android:textColor="@color/_999999"
android:textSize="@dimen/_11sp"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="@id/content"/>
<TextView
android:id="@+id/couponTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="78dp"
android:gravity="center_vertical"
android:includeFontPadding="false"
app:layout_constraintLeft_toLeftOf="@id/content"
app:layout_constraintTop_toTopOf="@id/content"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="77.5dp"
android:text="￥"
app:layout_constraintLeft_toRightOf="@id/couponTitle"
app:layout_constraintTop_toTopOf="@id/content"/>
<TextView
android:id="@+id/couponPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="72.5dp"
android:includeFontPadding="false"
android:text=""
android:textStyle="bold"
app:layout_constraintLeft_toRightOf="@id/couponTitle"
app:layout_constraintTop_toTopOf="@id/content"/>
<TextView
android:id="@+id/price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginRight="10dp"
android:includeFontPadding="false"
android:text="1"
app:layout_constraintBottom_toBottomOf="@id/content"
app:layout_constraintRight_toRightOf="@id/content"/>
<TextView
android:id="@+id/money"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="￥"
app:layout_constraintBottom_toBottomOf="@id/price"
app:layout_constraintRight_toLeftOf="@id/price"/>
<View
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_gravity="center"
app:layout_constraintBottom_toBottomOf="@id/price"
app:layout_constraintLeft_toLeftOf="@id/money"
app:layout_constraintRight_toRightOf="@id/price"
app:layout_constraintTop_toTopOf="@id/price"/>
</android.support.constraint.ConstraintLayout> <layout_item_vertical_normal_second_demo><?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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="wrap_content">
<ImageView
android:id="@+id/goodsImg2"
android:layout_width="0dp"
android:layout_height="0dp"
android:scaleType="fitXY"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
<TextView
android:id="@+id/specialCount2"
android:layout_width="50dp"
android:layout_height="22dp"
android:ellipsize="end"
android:gravity="center"
android:minWidth="50dp"
android:singleLine="true"
android:visibility="gone"
app:layout_constraintRight_toRightOf="@id/goodsImg2"
app:layout_constraintTop_toTopOf="@id/goodsImg2"/>
<View
android:id="@+id/content2"
android:layout_width="match_parent"
android:layout_height="102dp"
app:layout_constraintTop_toBottomOf="@id/goodsImg2"/>
<ImageView
android:id="@+id/delivery_free2"
android:layout_width="22dp"
android:layout_height="12dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="12.5dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="@id/content2"/>
<TextView
android:id="@+id/goodsTitle2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:ellipsize="end"
android:gravity="left"
android:includeFontPadding="false"
android:maxLines="2"
android:text=""
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="@id/content2"/>
<TextView
android:id="@+id/couponValue2"
android:layout_width="53dp"
android:layout_height="19dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="50dp"
android:gravity="center"
android:text="20元券"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="@id/content2"/>
<TextView
android:id="@+id/salesNum2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginRight="10dp"
android:layout_marginTop="52dp"
android:includeFontPadding="false"
android:text=""
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="@id/content2"/>
<TextView
android:id="@+id/couponTitle2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="78dp"
android:gravity="center_vertical"
android:includeFontPadding="false"
app:layout_constraintLeft_toLeftOf="@id/content2"
app:layout_constraintTop_toTopOf="@id/content2"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="77.5dp"
android:text="￥"
app:layout_constraintLeft_toRightOf="@id/couponTitle2"
app:layout_constraintTop_toTopOf="@id/content2"/>
<TextView
android:id="@+id/couponPrice2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="72.5dp"
android:includeFontPadding="false"
android:text=""
android:textStyle="bold"
app:layout_constraintLeft_toRightOf="@id/couponTitle2"
app:layout_constraintTop_toTopOf="@id/content2"/>
<TextView
android:id="@+id/price2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginRight="10dp"
android:includeFontPadding="false"
android:text="1"
app:layout_constraintBottom_toBottomOf="@id/content2"
app:layout_constraintRight_toRightOf="@id/content2"/>
<TextView
android:id="@+id/money2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="￥"
app:layout_constraintBottom_toBottomOf="@id/price2"
app:layout_constraintRight_toLeftOf="@id/price2"/>
<View
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_gravity="center"
app:layout_constraintBottom_toBottomOf="@id/price2"
app:layout_constraintLeft_toLeftOf="@id/money2"
app:layout_constraintRight_toRightOf="@id/price2"
app:layout_constraintTop_toTopOf="@id/price2"/>
</android.support.constraint.ConstraintLayout>
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