是什么?

• @interface UISwipeActionsConfiguration : NSObject
• 表格行,滑動時執(zhí)行操作的配置.

有什么用?

• 實現(xiàn)"表格行"滑動后,執(zhí)行多個按鈕之間,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:@"刪除" handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) {
    ....
   //執(zhí)行操作
   completionHandler(YES);
 }];

UIContextualAction * signAction =  [UIContextualAction contextualActionWithStyle:UIContextualActionStyleNormal title:@"編輯" handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) {
    ....
   //執(zhí)行操作
   completionHandler(YES);
 }];

NSArray<UIContextualAction *> * arrayTemp = @[deleteAction,signAction];
UISwipeActionsConfiguration * swipeConfiguration = [UISwipeActionsConfiguration configurationWithActions: arrayTemp];
//完全滑動時,是否執(zhí)行第一個操作
//swipeConfiguration.performsFirstActionWithFullSwipe = YES;
return swipeConfiguration;
}

效果圖

完全滑動：多個按鈕,因滑動而成為1個按鈕。

performsFirstActionWithFullSwipe

• UISwipeActionsConfiguration的屬性,一個布爾值。

performsFirstActionWithFullSwipe 默認或者為Y時的含義是：完全滑動時,自動執(zhí)行排列在第一個按鈕的操作. (如上面示例, 第一個操作,指的是"刪除")
performsFirstActionWithFullSwipe 為 NO 時: 就不會出現(xiàn)"完全滑動",這種情況發(fā)生.

也可以看看

UIContextualAction - 用戶滑動表格行后,執(zhí)行操作的事件
UIContextualActionStyle - 操作按鈕的樣式
UIContextualActionHandler - 執(zhí)行操作的代碼塊

來自于哪里?

• iOS-MJ-UI基礎(chǔ)-大神班/day-10/左滑出現(xiàn)多個按鈕