How to change color of UISegmentedControl border in iOS7?

The linked answer does indeed answer your question, but you have to read between the lines. Here's a clearer example to change all segmented control styles within the app:

// 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];

For one control within the app:

// 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];

More info here:https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/UIKitUICatalog/UISegmentedControl.html

So I solved the problem myself. My solution gives the border of the segmented control another color, nothing else.

In order to only change the border color of the segmented control, I put another segmented control on top of my old one. I disabled user interaction for this new one, and I set the image for the selected segment to nil.

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

I resolve putting in viewWillAppear mySegmentControl.selectedIndex for all items.So, the tint color appear for all segments.Of course, after selected All items, select your default item again.