Question

我对Recycler View Adapter

中的项目有疑问

当项目从左向右滚动时，一切看起来都很好。但是当将项目从右侧位置向右移动到左侧时，焦点项目会被截断至少一半。

我尝试改变回收器的宽度和高度，以及边距，但它不起作用

Recycler View Adapter

公共类SettingsSceneCardAdapter扩展了RecyclerView.Adapter {

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<RelativeLayout
    android:id="@+id/settings_scene_card_item_view_focused"
    android:layout_width="215dp"
    android:layout_height="328dp"
    android:layout_marginRight="10dp"
    android:layout_marginTop="20dp" />
<RelativeLayout
    android:id="@+id/settings_scene_card_item_view"
    android:layout_width="185.5dp"
    android:layout_height="278dp"
    android:layout_marginLeft="12dp"
    android:layout_marginTop="50dp"
    android:gravity="center">
    <ImageView
        android:id="@+id/settings_scene_card_main_image_icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="68dp"
        android:layout_marginTop="50dp" />

    <TextView
        android:id="@+id/settings_scene_card_item_text_description"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/settings_scene_card_main_image_icon"
        android:gravity="center" />
</RelativeLayout>

foo <- function(x) {y <- table(x); paste(rbind(y, names(y)), collapse = "")}

df %>% 
  group_by(truck_no) %>% 
  mutate(type = foo(type)) %>% 
  summarise_all(first)

## A tibble: 2 x 5
#  truck_no       start_time         end_time ctr_no  type
#    <fctr>           <fctr>           <fctr> <fctr> <chr>
#1   ABC123 20-05-2016 06:53 20-05-2016 08:53  ERT09  2D2R
#2   ERT123 21-05-2016 06:53 21-05-2016 08:53  QRT34  1D1R

Answer 1

使用Snaphelper。这是为了在recyclerview中滚动时捕捉中心的项目。

SnapHelper snapHelper = new LinearSnapHelper();
snapHelper.attachToRecyclerView(recyclerView);

RecyclerView在向后滚动时关闭物品

1 个答案: