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https://github.com/shaojiankui/jkcountdownbutton

JKCountDownButton,子类化UIButton实现IOS倒计时按钮,常常用于注册等发送验证码的时候进行倒计时操作
https://github.com/shaojiankui/jkcountdownbutton

countdown countdownbutton objective-c

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JKCountDownButton,子类化UIButton实现IOS倒计时按钮,常常用于注册等发送验证码的时候进行倒计时操作

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# JKCountDownButton
JKCountDownButton,子类化UIButton实现IOS倒计时按钮,常常用于注册等发送验证码的时候进行倒计时操作

JKCountDownButton, subclassing UIButton implementation iOS countdown button, register with sending the verification code and countdown

## Installation

### Installation with CocoaPods

platform :ios
pod 'JKCountDownButton'

### Manually

Copy JKCountDownButton.h JKCountDownButton.m in JKCountDownButton/ to your project.

## Usage
### Code
JKCountDownButton *_countDownCode;
_countDownCode = [JKCountDownButton buttonWithType:UIButtonTypeCustom];
_countDownCode.frame = CGRectMake(81, 200, 108, 32);
[_countDownCode setTitle:@"开始" forState:UIControlStateNormal];
_countDownCode.backgroundColor = [UIColor blueColor];
[self.view addSubview:_countDownCode];

[_countDownCode countDownButtonHandler:^(JKCountDownButton*sender, NSInteger tag) {
sender.enabled = NO;

[sender startCountDownWithSecond:10];

[sender countDownChanging:^NSString *(JKCountDownButton *countDownButton,NSUInteger second) {
NSString *title = [NSString stringWithFormat:@"剩余%zd秒",second];
return title;
}];
[sender countDownFinished:^NSString *(JKCountDownButton *countDownButton, NSUInteger second) {
countDownButton.enabled = YES;
return @"点击重新获取";

}];

}];


###xib
@property (weak, nonatomic) IBOutlet JKCountDownButton *countDownXib;

- (IBAction)countDownXibTouched:(JKCountDownButton*)sender {
sender.enabled = NO;
//button type要 设置成custom 否则会闪动
[sender startCountDownWithSecond:60];

[sender countDownChanging:^NSString *(JKCountDownButton *countDownButton,NSUInteger second) {
NSString *title = [NSString stringWithFormat:@"剩余%zd秒",second];
return title;
}];
[sender countDownFinished:^NSString *(JKCountDownButton *countDownButton, NSUInteger second) {
countDownButton.enabled = YES;
return @"点击重新获取";

}];
}
## License

This code is distributed under the terms and conditions of the MIT license.

## Demo
![](https://raw.githubusercontent.com/shaojiankui/JKCountDownButton/master/demo.gif)