1. Scroll-View test using pull-down and other related property events can not be triggered. After checking, it is found that the local basic library setting version is too low, the corresponding version of the corresponding event is valid at 2.10.1 and above, and bottoming and topping operations are effective as version candidates
2. Scroll -View pull-down refresh does not restore, solution: add refresher-triggered (set the current pull-down refresh status in the Scroll-View property, true means that the pull-down refresh has been triggered, false means that the pull-down refresh has not been triggered) and change its bool value
