ios - 介于willBeginEditingRowAtIndexPath和didEndEditingRowAtIndexPath之间

在tableView中，只需轻扫一下单元格即可触发willBeginEditingRowAtIndexPath进入编辑模式。手势向左拉的时间不足以使单元格停留在左侧，同时暴露了3个UITableViewRowAction按钮。而是，单元格滑回到右侧。但是，didEndEditingRowAtIndexPath不会自动触发。只有随后的触摸手势将触发该方法。如果单元格向右滑动，为什么didEndEditingRowAtIndexPath不触发？当手势结束和/或单元格返回到右侧对齐的正常状态时，我该如何拾取？

或换一种说法。 willBeginEditingRowAtIndexPath被解雇，并将屏幕状态更改为编辑状态。但是，由于从未达到编辑阶段，因此我需要将屏幕状态更改回非编辑状态。 didEndEditingRowAtIndexPath可以做到这一点，但是直到再次触摸它才被调用，这会使用户感到困惑。是否还有另一个指标，也许在UIControl中可以触发我使用？

更多信息:UITableViewRowAction按钮基于以下回购被子类化:https://github.com/benguild/BGTableViewRowActionWithImage。尽管使用标准UITableViewRowAction进行的测试无法解决问题。

最佳答案

即使您是iOS错误，我也找到了解决方法。

在您的单元格中，添加以下代码:

@interface UITableViewCell () <UIGestureRecognizerDelegate>
    @property (nonatomic, strong) UIPanGestureRecognizer *panRecognizer;
    @property (nonatomic, assign) BOOL isShowingDeleteConfirmationMask;
@end

-(void)awakeFromNib
{
    [super awakeFromNib];

    self.panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGestureRecongizer:)];
    self.panRecognizer.delegate = self;
    [self.contentView addGestureRecognizer:self.panRecognizer];
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return YES;
}

- (void)panGestureRecongizer:(UIPanGestureRecognizer *)recognizer
{
    switch (recognizer.state) {
        case UIGestureRecognizerStateEnded:
            [self refreshCellState];
            break;
        case UIGestureRecognizerStateCancelled:
            [self refreshCellState];
            break;
        default:
            break;
    }
}

- (void)didTransitionToState:(UITableViewCellStateMask)state
{
    [super willTransitionToState:state];

    if (state == UITableViewCellStateDefaultMask) {
        self.isShowingDeleteConfirmationMask = NO;
    } else if (state == UITableViewCellStateShowingDeleteConfirmationMask)  {
        self.isShowingDeleteConfirmationMask = YES;
    }
}

- (void)refreshCellState
{
     double delayInSeconds = 1.0; // one second should be enough for animationt to complete
     dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
     dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
         BOOL deleteViewExists = NO;
         for (UIView *subview in self.subviews) {
             // There is a iOS bug where swiping left on cell to show delete button would not trigger default state
             // if you don't swipe pass delete button
             if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewCellDeleteConfirmationView"]) {
                 deleteViewExists = YES;
                 break;
             }
         }
         if (!deleteViewExists && [self isEditing] && self.isShowingDeleteConfirmationMask) {
             if ([self.delegate respondsToSelector:@selector(cellDidEndEditing:)]) {
                 [self.delegate cellDidEndEditing:self];
             }
         }
     });
 }

在您的视图控制器中，

- (void)cellDidEndEditing:(nonnull LPToteItemTableViewCell *)cell
{
    [self.tableView setEditing:NO];
}