IOS加减选择器

最近由于在做预约部分的功能，需要选择人数和时间，并且还需要在时间的时候做出选择到最大小时之后，显示成最大小时后，所以写了一个小的demo，在这里分享给大家，希望大家可以用到：

封装的View的.h文件

#import <UIKit/UIKit.h>@interface NumberSeletedView : UIView/** *  最低数字 */@property (nonatomic , assign) int lowI;/** *  最高数字 */@property (nonatomic , assign) int HighI;/** *  拼装文字 */@property (nonatomic , strong) NSString *title;/** *  显示数字的区域 */@property (nonatomic , weak) UILabel *timeLable;/** *  数字 */@property (nonatomic , assign) int i;/** *  决定是否有 i人以上   YES为有  NO为没有 */@property (nonatomic , assign) BOOL HighType;@end

封装View的.m文件

#import "NumberSeletedView.h"#import "UIView+Extension.h"@interface NumberSeletedView ()/** *  减小按钮 */@property (nonatomic , weak) UIButton *leftBtn;/** *  增加按钮 */@property (nonatomic , weak) UIButton *rightBtn;/** *  N人以上区域 */@property (nonatomic , weak) UIView *topView;/** *  N人以上文字 */@property (nonatomic , weak) UILabel *lable;@end@implementation NumberSeletedView-(instancetype)initWithFrame:(CGRect)frame {    if (self = [super initWithFrame:frame]) {        //设置背景        UIImageView *comeView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.width, self.height)];        comeView.image = [UIImage imageNamed:@"bespeakBG"];        [self addSubview:comeView];        //设置显示内容        UILabel *timeLable = [[UILabel alloc] initWithFrame:comeView.frame];        self.timeLable = timeLable;        timeLable.textAlignment = NSTextAlignmentCenter;        timeLable.font = [UIFont systemFontOfSize:12];        [self addSubview:timeLable];        //设置减小按钮        UIButton *leftBtn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 31, 30)];        self.leftBtn = leftBtn;        leftBtn.userInteractionEnabled = NO;        [leftBtn setImage:[UIImage imageNamed:@"bespeakReduceEnable"] forState:UIControlStateNormal];        [leftBtn setImage:[UIImage imageNamed:@"bespeakReduceHeight"] forState:UIControlStateHighlighted];        [leftBtn addTarget:self action:@selector(leftBtn:) forControlEvents:UIControlEventTouchUpInside];        [self addSubview:leftBtn];        //设置增大按钮        UIButton *rightBtn = [[UIButton alloc] initWithFrame:CGRectMake(self.width - 31, 0, 31, 30)];        self.rightBtn = rightBtn;        [rightBtn setImage:[UIImage imageNamed:@"bespeakAdd"] forState:UIControlStateNormal];        [rightBtn setImage:[UIImage imageNamed:@"bespeakAddHeight"] forState:UIControlStateHighlighted];        [rightBtn addTarget:self action:@selector(rightBtn:) forControlEvents:UIControlEventTouchUpInside];        [self addSubview:rightBtn];        UIView *topView = [[UIView alloc] initWithFrame:CGRectMake(leftBtn.width, 0, self.width - leftBtn.width, self.height)];        self.topView = topView;        UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.topView.width, self.topView.height)];        imgView.image = [UIImage imageNamed:@"bespeakTopBG"];        [self.topView addSubview:imgView];        UILabel * lable = [[UILabel alloc] initWithFrame:imgView.frame];        self.lable = lable;        lable.font = [UIFont systemFontOfSize:14];        lable.textAlignment = NSTextAlignmentCenter;        [self.topView addSubview:lable];        [self addSubview:self.topView];        self.topView.hidden = YES;    }    return self;}- (void)layoutSubviews{    [super layoutSubviews];    self.i = self.lowI;    self.timeLable.text = [NSString stringWithFormat:@"%d%@",self.i,self.title];    self.lable.text = [NSString stringWithFormat:@"%d人以上",(self.HighI - 1)];}#pragma mark 点击减- (void)leftBtn:(UIButton *)btn{    self.i --;    if (self.HighType == YES) {        if (self.i <= self.HighI) {            self.topView.hidden = YES;        }    }    if (self.i <= self.lowI) {        btn.userInteractionEnabled = NO;        [btn setImage:[UIImage imageNamed:@"bespeakReduceEnable"] forState:UIControlStateNormal];    } else {        btn.userInteractionEnabled = YES;        self.rightBtn.userInteractionEnabled = YES;        [self.rightBtn setImage:[UIImage imageNamed:@"bespeakAdd"] forState:UIControlStateNormal];    }    self.timeLable.text = [NSString stringWithFormat:@"%d%@",self.i,self.title];}#pragma mark 点击加- (void)rightBtn:(UIButton *)btn{    self.i ++;    if (self.HighType == YES) {        if (self.i >= self.HighI) {            self.topView.hidden = NO;        }    }    if (self.i >= self.HighI) {        btn.userInteractionEnabled = NO;        [btn setImage:[UIImage imageNamed:@"bespeakAddEnable"] forState:UIControlStateNormal];    } else {        self.leftBtn.userInteractionEnabled = YES;        [self.leftBtn setImage:[UIImage imageNamed:@"bespeakReduce"] forState:UIControlStateNormal];    }    self.timeLable.text = [NSString stringWithFormat:@"%d%@",self.i,self.title];}

调用的方法

//到店时间    UIView *timeView = [self addViewWithY:CGRectGetMaxY(divisionView.frame) WithTitle:@"到店时间：" WithHeight:100];    //设置小时选择器    NumberSeletedView *numberView = [[NumberSeletedView alloc] initWithFrame:CGRectMake(timeView.width - 150, (timeView.height - 30 ) * 0.5, 140, 30)];    self.numberView = numberView;    numberView.lowI = 1;    numberView.HighI = 12;    numberView.title = @"小时内";    numberView.HighType = NO;    [timeView addSubview:numberView];    UILabel *PromptLable = [[UILabel alloc] init];    PromptLable.font = [UIFont systemFontOfSize:12];    PromptLable.text = @"注:只支持12小时内的预约哦！";    [PromptLable sizeToFit];    PromptLable.frame = CGRectMake(timeView.width - PromptLable.width - 10, timeView.height - PromptLable.height - 5, PromptLable.width, PromptLable.height);    PromptLable.textColor = RGBA(242, 91, 66, 1);    [timeView addSubview:PromptLable];    [footerView addSubview:timeView];    //预约人数    UIView *bespeakView = [self addViewWithY:CGRectGetMaxY(timeView.frame) WithTitle:@"预约人数：" WithHeight:80];    //设置预约人数选择器    NumberSeletedView *personView = [[NumberSeletedView alloc] initWithFrame:CGRectMake(bespeakView.width - 120, (bespeakView.height - 30 ) * 0.5, 110, 30)];    self.personView = personView;    personView.lowI = 1;    NSUInteger count = self.bespeakArray.count + 1;    NSString *highCount = [NSString stringWithFormat:@"%lu",(unsigned long)count];    personView.HighI = [highCount intValue];    personView.title = @"";    personView.HighType = YES;    [bespeakView addSubview:personView];    [footerView addSubview:bespeakView];

代码就这么多，如果有什么不好的地方，请大家多多指教！谢谢！