ActivityIndicator活动指示器Badge徽标数Button按钮Carousel走马灯Checkbox复选框DatePicker日期选择ImagePicker图片选择InputItem文本输入Pagination分页器Picker选择器Progress进度条Radio单选框RefreshControl下拉刷新SegmentedControl分段器Slider滑动输入条Stepper步进器Steps步骤条SwipeAction滑动或长按操作Switch滑动开关Tabs标签页Tag标签TextareaItem多行输入