无法将 UIButton 添加到 UIScrollView

Posted 2023-03-16

【中文标题】无法将 UIButton 添加到 UIScrollView

【英文标题】：Can't add UIButton to UIScrollView

【发布时间】：2013-04-27 17:14:05

【问题描述】：

晚安

虽然我已经阅读了很多关于将 UIButton 添加到 UIScrollView 的相关问题，但它对我不起作用。当我使用 UIImages 而不是 UIButtons 时，它就像一个魅力。我在这里想念什么？ （不要介意 if 或 for 循环，所有这些都是正确的，图像的路径也是）

 for(int j = 0; j < [subcategorie count]; j++)

        NSArray *product = [subcategorie objectAtIndex:(j)];
        int posX = 0;
        for(int k = 1; k <= [product count]; k++)

            if((i-1) == currentCategory )
                //NSString *fotoName = [NSString stringWithFormat:@"images/product/%@/%@_%i.png",self.categorieen[(i-1)] ,self.categorieen[(i-1)] , k];

                NSString *fotoName = [NSString stringWithFormat:@"%@_%i",self.categorieen[(i-1)] , k];

                NSString *currentCategory = [NSString stringWithFormat:@"images/product/%@/", self.categorieen[(i-1)]];
                NSString *path = [[NSBundle mainBundle] pathForResource:fotoName ofType:@"png" inDirectory:currentCategory];

                UIButton *fotoButton = [UIButton buttonWithType:UIButtonTypeCustom];
                [fotoButton setImage:[UIImage imageNamed:path] forState:UIControlStateNormal];
                fotoButton.frame = CGRectMake(posX, 252, 718, 520);
                fotoButton.backgroundColor = [UIColor clearColor];

                self.scrollview.contentSize = CGSizeMake(posX, 252);
                [self.scrollview setBounces:YES];
                [self.scrollview setPagingEnabled:YES];
                [self.scrollview addSubview:fotoButton];
                [self.scrollview bringSubviewToFront:fotoButton];
                [self.scrollview setUserInteractionEnabled:YES];

                self.scrollview.userInteractionEnabled = YES;
                [self addSubview: self.scrollview];
                posX += 718;

                NSLog(@"Fotolink = %@", fotoName);
            

        
    

干杯

【问题讨论】：

in [fotoButton setImage:[UIImage imageNamed:path] forState:UIControlStateNormal]; UIImage imageNamed 部分不正确，尝试添加这个 [UIImage imageWithData:[NSData dataWithContentsOfFile:path];

你让我开心！谢谢！

【参考方案1】：

[UIImage imageNamed:path] 看起来不正确， 试试[UIImage imageWithData:[NSData dataWithContentsOfFile:path]

---

UIButton *fotoButton = [UIButton buttonWithType:UIButtonTypeCustom];
[fotoButton setImage:[UIImage imageWithData:[NSData dataWithContentsOfFile:path] forState:UIControlStateNormal];

【讨论】：

确实是这个问题。 Thilina Hewagama 也这么说。还是谢谢！