使用UISegmentedControl实现分段选择(适用于少个

image.png image.png

首先当然是引入该文件 再初始化一下嘛

#import "TestView.h"

@property (nonatomic, strong) TestView  *TestView;

在需要的view上面直接使用 需要传入几个值
/**
一些需要的值
@param titles 标题数组
@param Ncolor 正常背景色
@param Scolor 隐藏背景色
@param Lcolor 滚动线背景色
@param index 默认位置
*/

 _TestView = [[TestView alloc]initWithFrame:CGRectMake(0, 550, SCREEN_WIDTH, 48)];
    NSArray *title = @[@"豆奶",@"饼干",@"冰糖",@"豆浆",@"饼干",@"冰糖",@"豆浆"];
    [_TestView MakesegTitle:title titlenormalColcor:[UIColor grayColor] titleseletedColor:[UIColor orangeColor] lineColor:[UIColor orangeColor] selectedSegmentIndex:3];
    _TestView.Block = ^(NSString *itemname, NSInteger index) {
        NSLog(@"%@--%ld",itemname,index);
    };
    [self.view addSubview:_TestView];

Block回调返回点击位置做其他事件处理

这里还有一个方法是外部控件 比如配合使用的UIscrollowView 可以在适当地方调用该方法改变UISegmentedControl显示位置

    [_TestView selectedSegmentIndex:seg.selectedSegmentIndex];

看看方法吧:.h文件

#import <UIKit/UIKit.h>
#import "UIView+Extension.h"//扩展文件
typedef void (^clickblock)(NSString *itemname,NSInteger index);
@interface TestView : UIView

@property(nonatomic, copy)clickblock Block;
/**
 一些需要的值
 @param titles 标题数组
 @param Ncolor 正常背景色
 @param Scolor 隐藏背景色
 @param Lcolor 滚动线背景色
 @param index  默认位置
 */
-(void)MakesegTitle:(NSArray*)titles titlenormalColcor:(UIColor *)Ncolor titleseletedColor:(UIColor*)Scolor lineColor:(UIColor*)Lcolor selectedSegmentIndex:(NSInteger)index;

//外部控件调用这个控制位置
-(void)selectedSegmentIndex:(NSInteger )index;
@end

.m文件

#import "TestView.h"
@interface TestView()
@property (retain,nonatomic) UISegmentedControl *segControl;
@property (nonatomic, strong) UIView            *lineView;
@property (nonatomic, assign) NSInteger         count;
@end
@implementation TestView

- (instancetype)initWithFrame:(CGRect)frame{
    if (self == [super initWithFrame:frame]) {
          self.backgroundColor = [UIColor whiteColor];
          self.frame = frame;
    }
    return self;
}


-(void)MakesegTitle:(NSArray *)titles titlenormalColcor:(UIColor *)Ncolor titleseletedColor:(UIColor *)Scolor lineColor:(UIColor *)Lcolor selectedSegmentIndex:(NSInteger)index{
    self.count = titles.count;
    _segControl = [[UISegmentedControl alloc]initWithItems:titles];
    _segControl.frame = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height-4);
    _segControl.tintColor = [UIColor whiteColor];
    [self addSubview:_segControl];
    _segControl.selectedSegmentIndex = index;
    //设置Segment的字体
    NSDictionary *dic1 = @{
                           //1.设置字体样式:例如黑体,和字体大小
                           NSFontAttributeName:[UIFont fontWithName:@"Arial-BoldMT" size:20],
                           //2.字体颜色
                           NSForegroundColorAttributeName:Ncolor
                           };
    
    [_segControl setTitleTextAttributes:dic1 forState:UIControlStateNormal];
    //设置Segment的字体
    NSDictionary *dic2 = @{
                           //1.设置字体样式:例如黑体,和字体大小
                           NSFontAttributeName:[UIFont fontWithName:@"Arial-BoldMT" size:20],
                           //2.字体颜色
                           NSForegroundColorAttributeName:Lcolor
                           };
    
    [_segControl setTitleTextAttributes:dic2 forState:UIControlStateSelected];
    
    [_segControl addTarget:self action:@selector(segclick:) forControlEvents:UIControlEventValueChanged];
    
    UIView *lineView            = [[UIView alloc]init];
    lineView.frame = CGRectMake(index * self.frame.size.width/self.count, self.frame.size.height-4,  self.frame.size.width/self.count, 2);
    lineView.backgroundColor    =   Lcolor;
    self.lineView           = lineView;
    [self addSubview:self.lineView];
}


-(void)segclick:(UISegmentedControl *)seg{
NSLog(@"第%ld个",seg.selectedSegmentIndex);
    
 [UIView animateWithDuration:0.3 animations:^{
    
     self.lineView.x = seg.selectedSegmentIndex*self.frame.size.width/self.count;

     }];
    if (_Block) {
        self.Block(@"预留位置", seg.selectedSegmentIndex);
    }
}


-(void)selectedSegmentIndex:(NSInteger)index{
    NSLog(@"反向点击:%ld",index);
    _segControl.selectedSegmentIndex = index;
    [UIView animateWithDuration:0.3 animations:^{
        
        self.lineView.x = index*self.frame.size.width/self.count;
    }];
}

@end

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UIview的扩展文件

扩展文件.png

#import <UIKit/UIKit.h>

@interface UIView (Extension)
@property (nonatomic, assign) CGFloat x;
@property (nonatomic, assign) CGFloat y;
@property (nonatomic, assign) CGFloat width;
@property (nonatomic, assign) CGFloat height;
@property (nonatomic, assign) CGSize size;
@property (nonatomic, assign) CGPoint origin;
@property (nonatomic, assign) CGFloat centerX;
@property (nonatomic, assign) CGFloat centerY;


/**
 *  9.上 < Shortcut for frame.origin.y
 */
@property (nonatomic) CGFloat top;

/**
 *  10.下 < Shortcut for frame.origin.y + frame.size.height
 */
@property (nonatomic) CGFloat bottom;

/**
 *  11.左 < Shortcut for frame.origin.x.
 */
@property (nonatomic) CGFloat left;

/**
 *  12.右 < Shortcut for frame.origin.x + frame.size.width
 */
@property (nonatomic) CGFloat right;

- (void)addTarget:(id)target action:(SEL)action;
@end

#import "UIView+Extension.h"

@implementation UIView (Extension)

- (void)setX:(CGFloat)x {
    CGRect frame = self.frame;
    frame.origin.x = x;
    self.frame = frame;
}

- (CGFloat)x {
    return self.frame.origin.x;
}

- (void)setY:(CGFloat)y {
    CGRect frame = self.frame;
    frame.origin.y = y;
    self.frame = frame;
}

- (CGFloat)y {
    return self.frame.origin.y;
}

- (void)setWidth:(CGFloat)width {
    CGRect frame = self.frame;
    frame.size.width = width;
    self.frame = frame;
}

- (CGFloat)width {
    return self.frame.size.width;
}

- (void)setHeight:(CGFloat)height {
    CGRect frame = self.frame;
    frame.size.height = height;
    self.frame = frame;
}

- (CGFloat)height {
    return self.frame.size.height;
}

- (void)setSize:(CGSize)size {
//    self.width = size.width;
//    self.height = size.height;
    CGRect frame = self.frame;
    frame.size = size;
    self.frame = frame;
}

- (CGSize)size {
    return self.frame.size;
}

- (void)setOrigin:(CGPoint)origin {
    CGRect frame = self.frame;
    frame.origin = origin;
    self.frame = frame;
}

- (CGPoint)origin {
    return self.frame.origin;
}

- (void)setCenterX:(CGFloat)centerX {
    CGPoint center = self.center;
    center.x = centerX;
    self.center = center;
}

- (CGFloat)centerX {
    return self.center.x;
}

- (void)setCenterY:(CGFloat)centerY {
    CGPoint center = self.center;
    center.y = centerY;
    self.center = center;
}

- (CGFloat)centerY {
    return self.center.y;
}


- (CGFloat)left {
    return self.frame.origin.x;
}

- (void)setLeft:(CGFloat)x {
    CGRect frame = self.frame;
    frame.origin.x = x;
    self.frame = frame;
}

- (CGFloat)top {
    return self.frame.origin.y;
}

- (void)setTop:(CGFloat)y {
    CGRect frame = self.frame;
    frame.origin.y = y;
    self.frame = frame;
}

- (CGFloat)right {
    return self.frame.origin.x + self.frame.size.width;
}

- (void)setRight:(CGFloat)right {
    CGRect frame = self.frame;
    frame.origin.x = right - frame.size.width;
    self.frame = frame;
}

- (CGFloat)bottom {
    return self.frame.origin.y + self.frame.size.height;
}

- (void)setBottom:(CGFloat)bottom {
    CGRect frame = self.frame;
    frame.origin.y = bottom - frame.size.height;
    self.frame = frame;
}



- (void)addTarget:(id)target action:(SEL)action;
{
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:target
                                                                         action:action];
    self.userInteractionEnabled = YES;
    [self addGestureRecognizer:tap];
}

@end