使用SpannedgridLayoutManager后,recyclerView从顶部占用大量空间 [英] recyclerView takes lots of space from top after use SpannedgridLayoutManager
问题描述
我想在recycleview中的SpannedGridLayoutManager中显示列表数据,但是在添加了辅助类SpannedGridLayoutmanager之后,在我的recycleview中需要在顶部留很多空间
i want to show list data in SpannedGridLayoutManager in recycleview, but after add helper class SpannedGridLayoutmanager, in my recycleview take a lot of space in top
iam必须尝试使用其他SpannedGridlayout管理器更改SpannedGridLayoutManager类,但顶部空间无法解决
iam has to try change SpannedGridLayoutManager class with other SpannedGridlayout manager, but the space on top is not solved
val manager = SpannedGridLayoutManager(object : SpannedGridLayoutManager.GridSpanLookup{
override fun getSpanInfo(position: Int): SpannedGridLayoutManager.SpanInfo {
// Conditions for 2x2 items
return if (position % 12 == 0 || position % 12 == 7) {
SpannedGridLayoutManager.SpanInfo(2, 2)
} else {
SpannedGridLayoutManager.SpanInfo(1, 1)
}
}
},3/*column*/,1f/*how big is default item*/)
binding.feedHome.setHasFixedSize(false)
binding.feedHome.layoutManager = manager
binding.feedHome.adapter = adapter
这是我用于recycleview的xml
and this is my xml for recycleview
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" xmlns:app="http://schemas.android.com/apk/res-auto">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="@+id/swipeRefreshLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:id="@+id/feed_home"
android:windowSoftInputMode="adjustResize"
tools:listitem="@layout/item_feed_home"
android:layout_height="match_parent"
tools:ignore="MissingConstraints"/>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/no_data"
android:visibility="gone"
android:text="@string/no_data_mypost"
android:textAppearance="@style/TextAppearance.AppCompat.Medium"
android:layout_gravity="center"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
</layout>
这是我用于recycleview的商品布局
and this is my item layout for recycleview
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<com.google.android.material.card.MaterialCardView
android:orientation="vertical"
android:layout_width="match_parent"
app:cardCornerRadius="8dp"
app:cardElevation="4dp"
app:cardMaxElevation="6dp"
app:strokeWidth="4dp"
app:cardBackgroundColor="@color/white"
android:layout_height="match_parent"
android:background="@color/grey_10"
android:layout_marginBottom="1.5dp"
android:layout_marginEnd="1.5dp"
android:id="@+id/material_global_zona"
android:layout_marginTop="1.5dp">
<ImageView
android:scaleType="fitXY"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/feed_post_image"
android:src="@drawable/sample_kelinci"
tools:ignore="MissingConstraints"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"/>
<!--<TextView android:layout_width="match_parent" android:text="0" android:textAlignment="center" android:textSize="70sp" android:textColor="@color/white" android:textAppearance="@style/TextAppearance.AppCompat.Large" android:id="@+id/count" android:layout_height="wrap_content"/>-->
</com.google.android.material.card.MaterialCardView>
</layout>
我希望我在SpannedGridLayoutManager类中缺少一些更新或修复错误,但是我知道如何解决
e expect i missing some update or fixing bug in class SpannedGridLayoutManager, but i dot know how to solved it
=======编辑======= 〜在RecyelerView之前由Give Linearlayout解决 〜不要在RecycleView项目上给Rootlayout填充或边距
=======EDIT======= ~ Solved by Give Linearlayout before RecyelerView ~ Dont Give Padding or Margin in Rootlayout at yout item RecycleView
推荐答案
尝试将RecyclerView
包装在LinearLayout
中:
...
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="@+id/swipeRefreshLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:id="@+id/feed_home"
android:windowSoftInputMode="adjustResize"
tools:listitem="@layout/item_feed_home"
android:layout_height="match_parent"
tools:ignore="MissingConstraints"/>
</LinearLayout>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
...
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