@implementation ForgetViewController {
__strong NSTimer * timer;
NSInteger secondes;
}
- (void)dealloc{
if(timer != nil){
[timer invalidate];
timer = nil;
}
}
- (void)btnClick:(UIButton *)sender {
secondes= 59;
if (!timer) {
timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(timerFired:) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];
[timer fire];
}
-(void)timerFired:(id) sender
{
if(secondes <=0) {
self.codeBtn.enabled = YES;
[self.codeBtn setTitle:@"重新获取" forState:UIControlStateNormal];
} else {
NSString * title = [NSString stringWithFormat:@"(%lds)后重发", secondes];
[self.codeBtn setTitle:title forState:UIControlStateNormal];
}
secondes--;
}
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