iOS-UISegmentedControl-隐藏边框

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

原理:

1. 用tintColor属性,把整个UISEgmentControl 设置成为透明色.

2. 设置正常状态下的titleTextAttributes.和选中状态下的titleTextAttributes.

#import "SecondViewController.h"

#import "Masonry.h"

@interface SecondViewController ()

@property (nonatomic, strong) UISegmentedControl * segmentedControl_one;

@end

@implementation SecondViewController

#pragma mark - 生命周期

#pragma mark viewDidLoad

- (void)viewDidLoad

{

    [super viewDidLoad];

    [self basicSetting];

    [self addSegmentedControl_one];

}

#pragma mark - 系统代理

#pragma mark - 点击事件

- (void)segmentedControl_one:(UISegmentedControl *)sender

{

    NSLog(@"index: %ld",(long)sender.selectedSegmentIndex);

}

#pragma mark - 实现方法

#pragma mark 基本设置

- (void)basicSetting

{

    self.title = @"隐藏边框";

}

- (void)addSegmentedControl_one

{

    [self.view addSubview:self.segmentedControl_one];

    [self.segmentedControl_one mas_makeConstraints:^(MASConstraintMaker *make) {

        make.left.mas_equalTo(self.view).with.offset();

        make.right.mas_equalTo(self.view).with.offset(-);

        make.top.mas_equalTo(self.view).with.offset();

        make.height.mas_equalTo();

    }];

}

#pragma mark - setter & getter

- (UISegmentedControl *)segmentedControl_one

{

    if (!_segmentedControl_one)

    {

        NSArray * array = @[@"第一段",@"第二段",@"第三段",@"第四段"];

        self.segmentedControl_one = [[UISegmentedControl alloc] initWithItems:array];

        // 去掉颜色,现在整个segment偶看不到,可以相应点击事件

        self.segmentedControl_one.tintColor = [UIColor clearColor];

        // 正常状态下

        NSDictionary * normalTextAttributes = @{NSFontAttributeName : [UIFont systemFontOfSize:16.0f],NSForegroundColorAttributeName : [UIColor grayColor]};

        [self.segmentedControl_one setTitleTextAttributes:normalTextAttributes forState:UIControlStateNormal];

        // 选中状态下

        NSDictionary * selctedTextAttributes = @{NSFontAttributeName : [UIFont boldSystemFontOfSize:20.0f],NSForegroundColorAttributeName : [UIColor redColor]};

        [self.segmentedControl_one setTitleTextAttributes:selctedTextAttributes forState:UIControlStateSelected];

        [self.segmentedControl_one addTarget:self action:@selector(segmentedControl_one:) forControlEvents:UIControlEventValueChanged];

    }

    return _segmentedControl_one;

}

@end