iphone - UISegmentedControl 截断段标题

Question

我的 iPhone 应用程序中有一个分段控件，在 ios6 上运行良好，但在 ios7 上，分段图 block 被截断(有足够的空间容纳文本，但无论如何都会截断它们)

    self.segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
self.segmentedControl.autoresizingMask = UIViewAutoresizingFlexibleWidth;
NSDictionary *defaultTextAttributes = [NSDictionary dictionaryWithObjectsAndKeys:defaultFont,
                                       UITextAttributeFont,
                                       defaultFontColor,
                                       UITextAttributeTextColor,
                                       nil];
[self.segmentedControl setTitleTextAttributes:defaultTextAttributes forState:UIControlStateNormal];

NSDictionary *selectedTextAttributes = [NSDictionary dictionaryWithObjectsAndKeys:selectedFont,
                                        UITextAttributeFont,
                                        selectedFontColor,
                                        UITextAttributeTextColor,
                                        nil];
[self.segmentedControl setTitleTextAttributes:selectedTextAttributes forState:UIControlStateHighlighted];

关于如何解决这个问题有什么建议吗？为什么它在 ios6 上可以正常工作，但在 ios7 上会截断标题...

这是导致问题的代码...

      UIImage *unselectedBackgroundImage = [[UIImage imageNamed:@"product_details_segmentBckg"] resizableImageWithCapInsets:UIEdgeInsetsMake(1, 1, 1, 1)];
    /* Selected background */
    UIImage *selectedBackgroundImage = [[UIImage imageNamed:@"product_details_segmentBckg"] resizableImageWithCapInsets:UIEdgeInsetsMake(1, 1, 1, 1)];
    /* Image between two unselected segments */
    UIImage *bothUnselectedImage = [[UIImage imageNamed:@"product_details_segmentBckg"] resizableImageWithCapInsets:UIEdgeInsetsMake(1, 0, 1, 0)];
     /* Image between segment selected on the left and unselected on the right */
    UIImage *leftSelectedImage = [[UIImage imageNamed:@"product_details_segmentBckg"] resizableImageWithCapInsets:UIEdgeInsetsMake(1, 0, 1, 0)];
    /* Image between segment selected on the right and unselected on the right */
    UIImage *rightSelectedImage = [[UIImage imageNamed:@"product_details_segmentBckg"] resizableImageWithCapInsets:UIEdgeInsetsMake(1, 0, 1, 0)];

    if ([UIImage instancesRespondToSelector:@selector(imageWithRenderingMode:)]) {
#ifdef __IPHONE_7_0
        unselectedBackgroundImage = [unselectedBackgroundImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
        selectedBackgroundImage = [selectedBackgroundImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
        bothUnselectedImage = [bothUnselectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
        leftSelectedImage = [leftSelectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
        rightSelectedImage = [rightSelectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
#endif
    }


    [[UISegmentedControl appearance] setBackgroundImage:unselectedBackgroundImage
                                               forState:UIControlStateNormal
                                             barMetrics:UIBarMetricsDefault];

    [[UISegmentedControl appearance] setBackgroundImage:selectedBackgroundImage
                                               forState:UIControlStateSelected
                                             barMetrics:UIBarMetricsDefault];

    [[UISegmentedControl appearance] setDividerImage:bothUnselectedImage
                                 forLeftSegmentState:UIControlStateNormal
                                   rightSegmentState:UIControlStateNormal
                                          barMetrics:UIBarMetricsDefault];

    [[UISegmentedControl appearance] setDividerImage:leftSelectedImage
                                 forLeftSegmentState:UIControlStateSelected
                                   rightSegmentState:UIControlStateNormal
                                          barMetrics:UIBarMetricsDefault];

    [[UISegmentedControl appearance] setDividerImage:rightSelectedImage
                                 forLeftSegmentState:UIControlStateNormal
                                   rightSegmentState:UIControlStateSelected
                                          barMetrics:UIBarMetricsDefault];

如果我将其注释掉，标签就会正常显示......但我需要背景图像......那么如何在保持ios6兼容性的同时在ios7上拥有自定义的分段控件

Answer 1

我通过为选定状态设置与正常状态相同的标题文本属性来解决这个问题。在 iOS 6 中这已经足够了:

NSMutableDictionary *attributes = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                   someUIFont, UITextAttributeFont,
                                   nil];

[self.segmentedControl setTitleTextAttributes:attributes forState:UIControlStateNormal];

现在我必须添加它才能使其适用于 iOS 7:

[self.segmentedControl setTitleTextAttributes:attributes forState:UIControlStateSelected];