本文实例为大家分享了ios倒计时的具体实现代码，供大家参考，具体内容如下
效果
用法
1.导入timer.h/.m文件
2.所需界面导入头文件 #import “timer.h”,其他设置参考源码
源码
github：https://github.com/makingitbest/countdowntimer
细节
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#import "viewcontroller.h"
#import "timer.h"
@interface viewcontroller ()<timerdelegate>
@property (nonatomic, strong) uibutton *button;
@property (nonatomic, strong) timer *timer;
@end
@implementation viewcontroller
- (void)viewdidload {
[super viewdidload];
// 倒计时界面
self.timer = [[timer alloc] initwithframe:cgrectmake(10, 100, 200, 30)];
self.timer.delegate = self; // 记得遵守代理
self.timer.sceonds = 5;
self.timer.layer.borderwidth = 1;
self.timer.layer.cornerradius = 5;
self.timer.layer.bordercolor = [uicolor orangecolor].cgcolor;
self.timer.label.font = [uifont systemfontofsize:14];
self.timer.label.textcolor = [uicolor orangecolor];
[self.view addsubview:self.timer];
self.button = [[uibutton alloc] initwithframe:cgrectmake(10, 150, 100, 40)];
self.button.layer.borderwidth = 1.0f;
self.button.layer.bordercolor = [uicolor blackcolor].cgcolor;
[self.button settitle:@"点击" forstate:uicontrolstatenormal];
[self.button settitlecolor:[uicolor blackcolor] forstate:uicontrolstatenormal];
[self.button settitlecolor:[uicolor redcolor] forstate:uicontrolstatehighlighted];
[self.button settitlecolor:[uicolor graycolor] forstate:uicontrolstatedisabled];
[self.view addsubview:self.button];
[self.button addtarget:self action:@selector(buttonevent) forcontrolevents:uicontroleventtouchupinside];
}
- (void)buttonevent {
// 启动倒计时的方法，启动之后设置button点击失效
[self.timer timerstart];
self.button.enabled = no;
self.button.layer.bordercolor = [uicolor graycolor].cgcolor;
}
- (void)timerfinished:(timer *)timer {
// 计时完成之后，button恢复点击
self.button.enabled = yes;
self.button.layer.bordercolor = [uicolor blackcolor].cgcolor;
}
@end
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