本文介绍了如何使一个按钮执行多个操作 xcode的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
好的,所以在我的 Xcode 项目中,我有一个按钮,我需要两次执行相同的方法,但使用不同的图像请帮助
Ok So In My Xcode project I Have A button That I need to do the same method twice but with A Different Image Plz Help
代码:
UIImage * toImage = [UIImage imageNamed:@"CharacterBackwards.png"];
[UIView transitionWithView:self.view
duration:0.01f
options:UIViewAnimationOptionTransitionNone
animations:^{
self->Guy.image = toImage;
} completion:NULL];
sleep(0.4);
推荐答案
这就是方法的用途.创建一个采用图像名称的方法:
This is what methods are for. Create a method that takes an image name:
- (void)transitionToImage:(NSString *)imageName {
UIImage * toImage = [UIImage imageNamed:@"CharacterBackwards.png"];
[UIView transitionWithView:self.view
duration:0.01f
options:UIViewAnimationOptionTransitionNone
animations:^{
self->Guy.image = toImage;
} completion:NULL];
}
现在让您的按钮处理程序调用两次:
Now have your button handler call this twice:
- (IBAction)buttonHandler {
[self transitionToImage:@"CharacterBackwards.png"];
[self performSelector:@selector(transitionToImage:) withObject:@"CharacterForwards.png" afterDelay:0.4];
}
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