如何在 iOS7 中更改 UISegmentedControl 边框的颜色？

Question

如何在不改变文本颜色的情况下改变 iOS7 中分段控制器的边框颜色？

如果我可以保持段之间的线不变（即与文本颜色相同），那将是理想的，但如果边框颜色的变化意味着这条线的变化也可以。

另请注意，文本（以及段之间的线）具有使用
[segmCtrl setTintColor:choosenTintColor]

设置的颜色

Answer 1

链接的答案确实回答了您的问题，但您必须在字里行间阅读。这是一个更清晰的示例，用于更改应用程序中的所有分段控件样式：

// Sets the tint color which typically sets the color of the segment images, text, dividers,
// borders, and selected segment. A translucent version of this color is also used to tint a
// segment when it is pressed and transitioning to being selected, as shown on the first
// segment below.
[[UISegmentedControl appearance] setTintColor:[UIColor blackColor]];

// The attributes dictionary can specify the font, text color, text shadow color, and text
// shadow offset for the title in the text attributes dictionary
[[UISegmentedControl appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor redColor]} forState:UIControlStateNormal];

对于应用内的一个控件：

// Sets the tint color which typically sets the color of the segment images, text, dividers,
// borders, and selected segment. A translucent version of this color is also used to tint a
// segment when it is pressed and transitioning to being selected, as shown on the first
// segment below.
self.segControl.tintColor = [UIColor blackColor];

// The attributes dictionary can specify the font, text color, text shadow color, and text
// shadow offset for the title in the text attributes dictionary
[self.segControl setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor redColor]} forState:UIControlStateNormal];

更多信息在这里： https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/UIKitUICatalog/UISegmentedControl.html

Answer 2

所以我自己解决了这个问题。我的解决方案为分段控件的边框提供了另一种颜色，仅此而已。

为了只更改分段控件的边框颜色，我将另一个分段控件放在旧控件之上。我禁用了这个新的用户交互，并将所选片段的图像设置为nil。

UIView *header = [[UIView alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, 40)];
// Header view for my main view

UISegmentedControl *subCat = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@"Segm 1", @"Segm 2", @"Segm 3", @"Segm 4", nil]]; 
// The UISegmentedController which I want to change color for

[subCat setFrame:CGRectMake(5, 5, [UIScreen mainScreen].bounds.size.width - 10, 30)];
[subCat setSelectedSegmentIndex:0];

UISegmentedControl *bcg = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@" ", @" ", @" ", @" ", nil]]; 
// The UISegmentedController I put on top of the other one

UIColor *subColor = [UIColor redColor];
[subCat setTintColor:subColor];
[bcg setFrame:CGRectMake(5, 5, [UIScreen mainScreen].bounds.size.width - 10, 30)];
[bcg setTintColor:[UIColor greenColor]];
[bcg setUserInteractionEnabled:NO];
[bcg setSelectedSegmentIndex:0];
[bcg setImage:nil forSegmentAtIndex:0]; // Removing highlight color


[header addSubview:subCat];
[header addSubview:bcg];

[[self view] addSubview:header];

Answer 3

我决定为所有项目添加 viewWillAppear mySegmentControl.selectedIndex。 因此，色调颜色出现在所有段中。 当然，选中所有项目后，再次选择你的默认项目。