参考了一些获取验证码的方式，再次封装一下获取验证码按钮，以及手机号码的正则处理

按钮闪烁与验证代码定时器实现

最新推荐文章于 2021-08-06 15:57:49 发布

原创最新推荐文章于 2021-08-06 15:57:49 发布 · 572 阅读

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本文介绍了如何使用Objective-C实现按钮的闪烁效果，并通过定时器动态更新按钮标题，用于验证代码的倒计时显示。

#import <UIKit/UIKit.h>

@interface UIButton (GetVerifyCode)
- (void)setTimeForTwinkle:(NSInteger)time ;
   //twinkleTitle:(NSString *)title;

@end


#import "UIButton+GetVerifyCode.h"

/**
 *  记录原始的title
 */
static    NSString *titleForOriginal;
/**
 *  闪烁时间
 */
static NSInteger timeForTwinkle;
@implementation UIButton (GetVerifyCode)
- (void)setTimeForTwinkle:(NSInteger)Time
   //twinkleTitle:(NSString *)Title
{
    self.enabled = NO;
    if (self.titleLabel.text != nil) {
        titleForOriginal = self.titleLabel.text;
    }
    //设置获取验证码定时器的时间
    timeForTwinkle = Time;
    [self setTitle:[NSString stringWithFormat:@"%zd秒",timeForTwinkle] forState:UIControlStateDisabled];
    [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timerFired:) userInfo:nil repeats:YES];
}
//定时器的功劳
-(void)timerFired:(NSTimer *)timer
{
    if (timeForTwinkle !=1) {
        timeForTwinkle -=1;
        [self setTitle:[NSString stringWithFormat:@"%ld秒",timeForTwinkle] forState:UIControlStateDisabled];
    } else {
        [timer invalidate];
        self.enabled = YES;
        [self setTitle:titleForOriginal forState:UIControlStateNormal];
    }
}

@end

<p style="margin-top: 0px; margin-bottom: 0px; font-size: 16px; line-height: normal; font-family: Menlo; color: rgb(201, 27, 19);"><pre name="code" class="objc">#import <Foundation/Foundation.h>

@interface NSString (Extension)
- (BOOL)isPhoneNumber;
- (BOOL)isEmailAdress;
/**
 *  返回字符串所占用的尺寸
 *
 *  @param font    字体
 *  @param maxSize 最大尺寸
 */
- (CGSize)sizeWithFont:(UIFont *)font maxSize:(CGSize)maxSize;
@end

#import "NSString+Extension.h"

@implementation NSString (Extension)

- (BOOL)match:(NSString *)pattern
{
    // 1.创建正则表达式
    NSRegularExpression *regex = [[NSRegularExpression alloc] initWithPattern:pattern options:0 error:nil];
    // 2.测试字符串
    NSArray *results = [regex matchesInString:self options:0 range:NSMakeRange(0, self.length)];
    
    return results.count > 0;
}
- (BOOL)isPhoneNumber
{
    NSString *pattern = @"^1[3578]\\d{9}$";
    return [self match:pattern];
}
- (BOOL)isEmailAdress
{
    NSString *pattern = @"^[a-z0-9]+([._\\-]*[a-z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$";
    return [self match:pattern];
}