Kivy RecycleView：我们如何滚动到列表的末尾

Question

例如，在将新条目添加到RecycleView数据后，我们如何确保最后添加的项目显示在列表底部，而无需手动向下滚动列表？

Answer 1

经过一番搜索，我认为您可以将scroll_y的{​​{1}}属性设置为RecycleView，然后最后一个条目应该位于{{1 }}。

Answer 2

此处是应用John Anderson发布的解决方案的kv文件的摘录。注意第一条评论...：

BoxLayout:
    size_hint_y: None
    height: "70dp"
    RecycleView:
        id: request_RecycleView_list
        size_hint_y: 1
        scroll_y: 0                     # forces scrolling to list bottom after adding an entry
        effect_cls: "ScrollEffect"      # prevents overscrolling
        viewclass: 'SelectableLabel'

        SelectableRecycleBoxLayout:
            default_size: None, dp(20) # height of list line
            default_size_hint: 1, None
            size_hint_y: None
            height: self.minimum_height
            spacing: 0.5
            orientation: 'vertical'
            multiselect: False
            touch_multiselect: False

<SelectableLabel>:
    # Draw a background to indicate selection
    canvas.before:
        Color:
            rgba: (1, 0, 0, 1) if self.selected else (.0, 0.9, .1, .3)
        Rectangle:
            pos: self.pos
            size: self.size
        Color:
            rgba: (0, 0.9, .1, .3)
        Rectangle:
            pos: self.pos
            size: self.size