ios – 没有调用previewActionItems(强制触摸动作)

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我使用下面的代码添加强制触摸预览操作… Peek和pop视图效果很好,只有动作没有显示…请帮助我的代码由于某种原因没有被执行,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,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;

}

解决方法

我面临同样的问题被困了很长时间.

我犯的错误是在Caller View Controller中添加了这个方法.
不要在调用者视图控制器中添加方法,而是将其添加到被调用的视图控制器中.

例如,如果您在强制触摸View Controller A(调用者)时呈现View Controller B(调用),则将此方法添加到View Controller B(调用).

并且太明显了,因为我们正在处理View控制器B中的按钮操作.

希望它能帮到你.祝一切顺利.

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