countDownButton,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
countDownButton, subclassing UIButton implementation iOS countdown button, register with sending the verification code and countdown
platform:ios,'7.0'
target 'YourProjectName' do
pod 'countDownButton'
end
Copy countDownButton.h countDownButton.m in LFCountDownButton/ to your project.
@property(nonatomic,strong) LFCountDownButton *countDownButton;
//创建倒计时按钮
self.countDownButton = [[LFCountDownButton alloc]init];
self.countDownButton.frame = CGRectMake(10, 130, 150, 40);
[self.countDownButton.titleLabel setFont:[UIFont systemFontOfSize:14.0f]];
[self.countDownButton setTitle:@"Start CountDown" forState:UIControlStateNormal];
[self.countDownButton setBackgroundColor:[UIColor redColor]];
[self.view addSubview:self.countDownButton];
// 1. 倒计时按钮点击
[self.countDownButton touchCountDownButtonHandler:^(LFCountDownButton *countDownButton, NSInteger tag) {
countDownButton.enabled = NO;
//1.1开始倒计时
[countDownButton startCountDownWithSecond:10];
//do something...
//1.2 倒计时进行中
[countDownButton countDownButtonChanging:^NSString *(LFCountDownButton *countDownButton, NSUInteger second) {
NSString *title = [NSString stringWithFormat:@"%zd left",second];
return title;
}];
//1.3 倒计时结束
[countDownButton countDownButtonFinished:^NSString *(LFCountDownButton *countDownButton, NSUInteger second) {
countDownButton.enabled = YES;
return @"Obtain again";
}];
}];
###xib @property (weak, nonatomic) IBOutlet LFCountDownButton *countDownButtonXib;
1.拖拽button控件到xib 2.修改button控件的的类，button type要设置成custom 否则会闪动 3.设置IBAction方法
- (IBAction)countDownButtonClickForXib:(id)sender {
//要么拖拽方法的时候改变type(id改为LFCountDownButton类型)，要么自己转下
self.countDownButtonXib = (LFCountDownButton*)sender;
self.countDownButtonXib.enabled = NO;
//1.1开始倒计时
[ self.countDownButtonXib startCountDownWithSecond:15];
//do something...
//1.2 倒计时进行中
[ self.countDownButtonXib countDownButtonChanging:^NSString *(LFCountDownButton *countDownButton, NSUInteger second) {
NSString *title = [NSString stringWithFormat:@"%zd left",second];
return title;
}];
//1.3 倒计时结束
[ self.countDownButtonXib countDownButtonFinished:^NSString *(LFCountDownButton *countDownButton, NSUInteger second) {
countDownButton.enabled = YES;
return @"Obtain again";
}];
}
This code is distributed under the terms and conditions of the MIT license.