如何适合Recyclerview中的图像视图数量?
我有一个recyclerview
,带有固定的尺寸比例,
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
...>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="0dp"
android:layout_height="0dp"
android:orientation="horizontal"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintDimensionRatio="35:16"
... />
</androidx.constraintlayout.widget.ConstraintLayout>
我需要在ImageView
内部显示recyclerview
,但显示了固定数量的图像。在屏幕上,其余图像需要滚动以显示,类似于图像
我用image> ImageView
内部创建此布局:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="4dp"
android:layout_marginEnd="4dp"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:src="@drawable/image2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
此处的问题
我尝试了很多,但是如果没有设置layout_width
和layout_hieght
没有固定的数字,则不会显示图像。 我想要的是设置ImageView
Hight Width 动态使用 recyClerview
hight 和屏幕宽度< /strong>。
I have a RecyclerView
with a fixed Dimension-Ratio
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
...>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="0dp"
android:layout_height="0dp"
android:orientation="horizontal"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintDimensionRatio="35:16"
... />
</androidx.constraintlayout.widget.ConstraintLayout>
I Need to show list of ImageView
inside the RecyclerView
, but with a fixed number of images shown on the screen, and the rest of the images need to scroll to be shown, similar to the image
I Create this layout with ImageView
inside it:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="4dp"
android:layout_marginEnd="4dp"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:src="@drawable/image2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
The problem here
I try a lot, but the image doesn't show without setting the layout_width
and layout_hieght
with a fixed number.
and What i want is to set ImageView
hight-width dynamicly with RecyclerView
Hight and Screen Width.
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该解决方案非常简单:
用于获取屏幕宽度的适配器构造函数中的Pass
Displaymetrics
。并计算
imageView
= screenwidth \ numberofimageincreateviewholder
适配器的函数。The solution is super easy:
pass
DisplayMetrics
In The Adapter Constructor for getting screen width.and calculate the width of
ImageView
= ScreenWidth\numberOfImage insideonCreateViewHolder
function of the adapter.