我的 Controller 上有 UISegmentedControl
。当我第一次打开它时,哪种色调效果很好。但是在按下后退按钮时,我将关闭 Controller 。当重新打开同一个 Controller 时,UISegmentedControl
的色调会消失。请帮忙。提前致谢。
headerSegment = [[UISegmentedControl alloc] initWithItems:segmentItemsArray];
headerSegment.selectedSegmentIndex = 0;
headerSegment.apportionsSegmentWidthsByContent = YES;
headerSegment.layer.borderWidth = 0;
headerSegment.layer.masksToBounds = NO;
UIFont *font = [UIFont systemFontOfSize:16];
NSDictionary *attributes = [NSDictionary dictionaryWithObject:font
forKey:NSFontAttributeName];
[headerSegment setTitleTextAttributes:attributes
forState:UIControlStateNormal];
[[UISegmentedControl appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName : [ApplicationColors skyBlueColor], NSFontAttributeName : [UIFont systemFontOfSize:16]} forState:UIControlStateSelected];
[[UISegmentedControl appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName : [ApplicationColors segmentNormalColor], NSFontAttributeName : [UIFont systemFontOfSize:16]} forState:UIControlStateNormal];
headerSegment.layer.borderColor = [UIColor clearColor].CGColor;
headerSegment.tintColor = [UIColor whiteColor];
headerSegment.backgroundColor = [ApplicationColors lightGrayBackgroundColor ];
headerSegment.translatesAutoresizingMaskIntoConstraints = NO;
[headerSegment addTarget:self action:@selector(segmentChanged:) forControlEvents:UIControlEventValueChanged];
[contentHolderView addSubview:headerSegment];
最佳答案
尝试使用以下代码,(它对我有用)
// ViewController.m
#import "ViewController.h"
@interface ViewController () {
UISegmentedControl * headerSegment;
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self addsegmentcontrol];
}
-(void)addsegmentcontrol{
headerSegment = [[UISegmentedControl alloc] initWithItems:@[@"One", @"Two", @"Three"]];
headerSegment.selectedSegmentIndex = 0;
headerSegment.apportionsSegmentWidthsByContent = YES;
headerSegment.layer.borderWidth = 0;
headerSegment.layer.masksToBounds = NO;
UIFont *font = [UIFont systemFontOfSize:16];
NSDictionary *attributes = [NSDictionary dictionaryWithObject:font
forKey:NSFontAttributeName];
[headerSegment setTitleTextAttributes:attributes
forState:UIControlStateNormal];
[headerSegment setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor greenColor], NSFontAttributeName : [UIFont systemFontOfSize:16]} forState:UIControlStateSelected];
[headerSegment setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor redColor], NSFontAttributeName : [UIFont systemFontOfSize:16]} forState:UIControlStateNormal];
headerSegment.layer.borderColor = [UIColor clearColor].CGColor;
headerSegment.tintColor = [UIColor whiteColor];
headerSegment.backgroundColor = [UIColor lightGrayColor];
headerSegment.translatesAutoresizingMaskIntoConstraints = YES;
//[headerSegment addTarget:self action:@selector(segmentChanged:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:headerSegment];
headerSegment.frame = CGRectMake(0, 200, 320, 44);
[self.view layoutIfNeeded];
}
这是示例结果:
关于ios - UISegmentedControl 在解散后更改色调颜色,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49357197/