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>
老白一个