我正在使用 NSTimer 每秒更新 UIButton 的标题。
I am using a NSTimer to update a UIButton's title every second.
它可以工作,但标题中的文本会自动闪烁(动画为alpha 0 并返回)。
It works but the text in the title blinks (animates to alpha 0 and back) automatically.
我尝试使用 button.layer.removeAllAnimations()没有运气,也没有例外,因此QuartzCore似乎已正确链接。
I tried to use button.layer.removeAllAnimations() with no luck, and no exceptions, so QuartzCore seems to be correctly linked.
当前非工作偏执代码:
UIView.setAnimationsEnabled(false) UIView.performWithoutAnimation { button.setTitle(time, forState: .Normal) button.layer.removeAllAnimations() } UIView.setAnimationsEnabled(true)推荐答案
请确保您的按钮是自定义按钮,而不是系统按钮。
Make sure your button is a "custom" button and not a "system" button.
如果您是在情节提要中创建的,则只需更改按钮类型即可。如果您是通过编程方式创建的,则应为:
If you created it on a storyboard, then just change the Button Type. If you created it programmatically, then it should be:
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeCustom];更多推荐
防止UIButton的setTitle:forState:动画
发布评论