本文介绍了iPhone:UIImageView 淡入 - Howto?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
我有一个想要淡入的 UIImageView.
I have an UIImageView that I want to fade in.
有没有办法在底层 UIViewController 上启用它?
Is there a way to enable that on an underlying UIViewController?
我已经翻译了最简单的答案，虽然它们都可以工作，C# .NET MonoTouch 用户:
I have translated the simplest answer, though they all work, C# .NET for the MonoTouch users:
public override void ViewDidAppear (bool animated)
{
base.ViewDidAppear (animated);
UIView.BeginAnimations ("fade in");
UIView.SetAnimationDuration (1);
imageView.Alpha = 1;
UIView.CommitAnimations ();
}
推荐答案
初始设置你的imageview的alpha为0为imageView.alpha = 0;
Initially set the alpha of your imageview as 0 as imageView.alpha = 0;
- (void)fadeInImage
{
[UIView beginAnimations:@"fade in" context:nil];
[UIView setAnimationDuration:1.0];
imageView.alpha = 1.0;
[UIView commitAnimations];
}
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