按钮倒计时
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#import "ViewController.h"#import "UIButton+countDown.h"@interface ViewController ()@property (weak, nonatomic) IBOutlet UIButton *countdownBtn;@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad];}- (IBAction)countdownBtnClick:(UIButton *)sender { [_countdownBtn startWithTime:5 title:@"获取验证码" countDownTitle:@"s" mainColor:[UIColor colorWithRed:84/255.0 green:180/255.0 blue:98/255.0 alpha:1.0f] countColor:[UIColor lightGrayColor]];}- (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}@end
//// Created by HenryCheng on 15/12/4.// Copyright © 2015年 iMac. All rights reserved.//#import "UIButton+countDown.h"@implementation UIButton (countDown)- (void)startWithTime:(NSInteger)timeLine title:(NSString *)title countDownTitle:(NSString *)subTitle mainColor:(UIColor *)mColor countColor:(UIColor *)color { //倒计时时间 __block NSInteger timeOut = timeLine; dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); dispatch_source_t _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queue); //每秒执行一次 dispatch_source_set_timer(_timer, dispatch_walltime(NULL, 0), 1.0 * NSEC_PER_SEC, 0); dispatch_source_set_event_handler(_timer, ^{ //倒计时结束,关闭 if (timeOut <= 0) { dispatch_source_cancel(_timer); dispatch_async(dispatch_get_main_queue(), ^{ self.backgroundColor = mColor; [self setTitle:title forState:UIControlStateNormal]; self.userInteractionEnabled = YES; }); } else { int allTime = (int)timeLine + 1; int seconds = timeOut % allTime; NSString *timeStr = [NSString stringWithFormat:@"%0.2d", seconds]; dispatch_async(dispatch_get_main_queue(), ^{ self.backgroundColor = color; [self setTitle:[NSString stringWithFormat:@"%@%@",timeStr,subTitle] forState:UIControlStateNormal]; self.userInteractionEnabled = NO; }); timeOut--; } }); dispatch_resume(_timer);}@end
//// Created by HenryCheng on 15/12/4.// Copyright © 2015年 iMac. All rights reserved.//#import "UIButton+countDown.h"@implementation UIButton (countDown)- (void)startWithTime:(NSInteger)timeLine title:(NSString *)title countDownTitle:(NSString *)subTitle mainColor:(UIColor *)mColor countColor:(UIColor *)color { //倒计时时间 __block NSInteger timeOut = timeLine; dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); dispatch_source_t _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queue); //每秒执行一次 dispatch_source_set_timer(_timer, dispatch_walltime(NULL, 0), 1.0 * NSEC_PER_SEC, 0); dispatch_source_set_event_handler(_timer, ^{ //倒计时结束,关闭 if (timeOut <= 0) { dispatch_source_cancel(_timer); dispatch_async(dispatch_get_main_queue(), ^{ self.backgroundColor = mColor; [self setTitle:title forState:UIControlStateNormal]; self.userInteractionEnabled = YES; }); } else { int allTime = (int)timeLine + 1; int seconds = timeOut % allTime; NSString *timeStr = [NSString stringWithFormat:@"%0.2d", seconds]; dispatch_async(dispatch_get_main_queue(), ^{ self.backgroundColor = color; [self setTitle:[NSString stringWithFormat:@"%@%@",timeStr,subTitle] forState:UIControlStateNormal]; self.userInteractionEnabled = NO; }); timeOut--; } }); dispatch_resume(_timer);}@end
//// UIButton+countDown.h// LiquoriceDoctorProject//// Created by HenryCheng on 15/12/4.// Copyright © 2015年 iMac. All rights reserved.//#import <UIKit/UIKit.h>@interface UIButton (countDown)/** * 倒计时按钮 * * @param timeLine 倒计时总时间 * @param title 还没倒计时的title * @param subTitle 倒计时中的子名字,如时、分 * @param mColor 还没倒计时的颜色 * @param color 倒计时中的颜色 */- (void)startWithTime:(NSInteger)timeLine title:(NSString *)title countDownTitle:(NSString *)subTitle mainColor:(UIColor *)mColor countColor:(UIColor *)color;@end
//// Created by HenryCheng on 15/12/4.// Copyright © 2015年 iMac. All rights reserved.//#import "UIButton+countDown.h"@implementation UIButton (countDown)- (void)startWithTime:(NSInteger)timeLine title:(NSString *)title countDownTitle:(NSString *)subTitle mainColor:(UIColor *)mColor countColor:(UIColor *)color { //倒计时时间 __block NSInteger timeOut = timeLine; dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); dispatch_source_t _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queue); //每秒执行一次 dispatch_source_set_timer(_timer, dispatch_walltime(NULL, 0), 1.0 * NSEC_PER_SEC, 0); dispatch_source_set_event_handler(_timer, ^{ //倒计时结束,关闭 if (timeOut <= 0) { dispatch_source_cancel(_timer); dispatch_async(dispatch_get_main_queue(), ^{ self.backgroundColor = mColor; [self setTitle:title forState:UIControlStateNormal]; self.userInteractionEnabled = YES; }); } else { int allTime = (int)timeLine + 1; int seconds = timeOut % allTime; NSString *timeStr = [NSString stringWithFormat:@"%0.2d", seconds]; dispatch_async(dispatch_get_main_queue(), ^{ self.backgroundColor = color; [self setTitle:[NSString stringWithFormat:@"%@%@",timeStr,subTitle] forState:UIControlStateNormal]; self.userInteractionEnabled = NO; }); timeOut--; } }); dispatch_resume(_timer);}@end
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