当我在 UIButton 上调用 setTitle 时,按钮在 iOS 7 中闪烁。我尝试设置 myButton.highlighted = NO,但这并没有阻止按钮闪烁。
[myButton setTitle:[[NSUserDefaults standardUserDefaults] stringForKey:@"elapsedLabelKey"] forState:UIControlStateNormal];
myButton.highlighted = NO;
以下是我设置更新标题的计时器的方法:
- (void)actionTimer {
if (myTimer == nil) {
myTimer = [NSTimer scheduledTimerWithTimeInterval: 1.0
target: self
selector: @selector(showActivity)
userInfo: nil
repeats: YES];
}
}
这是实际更新标题的方法:
- (void)showActivity {
NSString *sym = [[NSLocale currentLocale] objectForKey:NSLocaleCurrencySymbol];
if (pauseInterval == nil) {
// Update clock
seconds = [[NSDate date] timeIntervalSinceDate:startInterval] - breakTime;
// Update total earned
secRate = rate.value / 60 / 60;
total = secRate * seconds;
[totalLabel setTitle:[NSString stringWithFormat:@"%@%.4f",sym,total] forState:UIControlStateNormal];
days = seconds / (60 * 60 * 24);
seconds -= days * (60 * 60 * 24);
int hours = seconds / (60 * 60);
fhours = (float)seconds / (60.0 * 60.0);
seconds -= hours * (60 * 60);
int minutes = seconds / 60;
seconds -= minutes * 60;
// Update the timer clock
[elapsed setTitle:[NSString stringWithFormat:@"%.2i:%.2i:%.2i:%.2i",days,hours,minutes,seconds] forState:UIControlStateNormal];
}
}