previewActionItems not getting calling（Force touch action）

Question

我使用下面的代码来添加强制触摸预览操作... Peek和弹出视图很好，只有行动没有显示...请帮助我的代码没有得到执行一些理由，看看：

- (NSArray<id<UIPreviewActionItem>> *)previewActionItems { 

    if (_previewActions == nil) { 

     UIPreviewAction *rateAction = [UIPreviewAction actionWithTitle:@"Rate" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) { 

      EmbededRateViewController *embededRVC = [[EmbededRateViewController alloc]initWithEmployerToRate:self.employersArray[0]]; 

      embededRVC.view.bounds = CGRectMake(0, 0, self.view.frame.size.width - 40, 210); 
      [embededRVC setPopinTransitionStyle:BKTPopinTransitionStyleSnap]; 

      BKTBlurParameters *blurParameters = [[BKTBlurParameters alloc] init]; 

      blurParameters.tintColor = [UIColor colorWithWhite:0 alpha:0.5]; 
      blurParameters.radius = 0.3f; // 0.3 
      [embededRVC setBlurParameters:blurParameters]; 
      [embededRVC setPopinTransitionDirection:BKTPopinTransitionDirectionTop]; 
      [self.collectionView setScrollEnabled:NO]; 
      [self presentPopinController:embededRVC animated:YES completion:^{ 
       NSLog(@"Popin presented !"); 
      }]; 
     }]; 

     UIPreviewAction *commentAction = [UIPreviewAction actionWithTitle:@"Comment" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) { 

      NewCommentViewController *ncvc = [[NewCommentViewController alloc]initWithEmployer:self.employersArray[0]]; 
      [self presentViewController:ncvc animated:YES completion:nil]; 
     }]; 

     UIPreviewAction *reportAction = [UIPreviewAction actionWithTitle:@"Report" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) { 

      ReportEmployerViewController *reportEmpVC = [[ReportEmployerViewController alloc]initWithEmployer:self.employersArray[0]]; 
      [self presentViewController:reportEmpVC animated:YES completion:nil]; 
     }]; 

     UIPreviewAction *cancelAction = 
     [UIPreviewAction actionWithTitle:@"Cancel" 
            style:UIPreviewActionStyleSelected 
           handler:^(UIPreviewAction *action, 
              UIViewController *previewViewController){ 

           }]; 

     _previewActions = @[commentAction, rateAction, reportAction, cancelAction]; 
    } 
    return _previewActions; 

} 

Answer 1

我正面临同样的问题被卡长了。

我做的错误是在调用者视图控制器中添加此方法。 不要在调用者视图控制器中添加此方法，而是将其添加到调用的视图控制器中。

例如，如果您在View Controller A（调用者）的强制触摸中呈现View Controller B（调用），则将此方法添加到View Controller B（调用）中。

，是太明显了，因为我们正在处理的视图控制器B.按钮动作

希望它可以帮助你。 一切顺利。