是什么?
@interface UISwipeActionsConfiguration : NSObject- 表格行,滑动时执行操作的配置.
有什么用?
- 实现"表格行"滑动后,执行多个按钮之间,各自不同功能的事件.
怎么使用?
+ (instancetype)configurationWithActions:(NSArray<UIContextualAction *> *)actions;
示例
- (UISwipeActionsConfiguration *)tableView:(UITableView *)tableView
leadingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath{
UIContextualAction * deleteAction = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleDestructive title:@"删除" handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) {
....
//执行操作
completionHandler(YES);
}];
UIContextualAction * signAction = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleNormal title:@"编辑" handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) {
....
//执行操作
completionHandler(YES);
}];
NSArray<UIContextualAction *> * arrayTemp = @[deleteAction,signAction];
UISwipeActionsConfiguration * swipeConfiguration = [UISwipeActionsConfiguration configurationWithActions: arrayTemp];
//完全滑动时,是否执行第一个操作
//swipeConfiguration.performsFirstActionWithFullSwipe = YES;
return swipeConfiguration;
}
效果图
完全滑动：多个按钮,因滑动而成为1个按钮。
performsFirstActionWithFullSwipe
-
UISwipeActionsConfiguration的属性,一个布尔值。
performsFirstActionWithFullSwipe 默认或者为Y时的含义是：完全滑动时,自动执行排列在第一个按钮的操作. (如上面示例, 第一个操作,指的是"删除")
performsFirstActionWithFullSwipe 为 NO 时: 就不会出现"完全滑动",这种情况发生.
也可以看看
UIContextualAction - 用户滑动表格行后,执行操作的事件
UIContextualActionStyle - 操作按钮的样式
UIContextualActionHandler - 执行操作的代码块
来自于哪里?
- iOS-MJ-UI基础-大神班/day-10/左滑出现多个按钮
