通过WatchKit以编程方式设置UIImage动画 [英] Programatically Set UIImage Animation with WatchKit
问题描述
我似乎无法弄清楚如何以编程方式通过插座设置新图像，并使其开始动画制作.
I can't seem to figure out how to programmatically set a new image, via the outlet, and make it start animating.
序列
- zeroEntering0.png
- zeroEntering1.png
- zeroEntering2.png
- zeroEntering3.png
- zeroEntering4.png
我将图像序列导入 WatchKit App
I imported the sequence of images into the Image.xcassets inside the WatchKit App
我可以在界面生成器中将图像设置为"zeroEntering"，并将动画设置为是"，这样就可以正常工作.
I can set the image in the interface builder to "zeroEntering" and set animating to "Yes" and it works correctly.
但是，我想要更动态的东西，我需要按下按钮来选择一个新的动画序列并将其启动.如果我尝试使用界面生成器中的相同名称以编程方式设置图像，则UIImage为nil.
However, I want something more dynamic, I need a button press to choose a new animation sequence and start it off. If I try and set the image programmatically using the same name from the interface builder, the UIImage is nil.
以编程方式设置UIImage时应使用什么命名约定?"zeroEntering"，"zeroEntering0"，"zeroEntering.png"或"zeroEntering0.png"
What naming convention should I use when programmatically setting the UIImage? "zeroEntering", "zeroEntering0", "zeroEntering.png" or "zeroEntering0.png"
我尝试使用两个非nil选项，并且图像没有动画并变黑.
I tried using the two non-nil options and the image did not animate and went black.
推荐答案
答案很微妙，肯定让我的车轮转动了太长时间.
The answer is subtle and definitely got my wheels spinning for too long.
根据此美丽的文章，
当要显示的图像缓存在手表上时，您应该使用 setImageNamed(:)在手表应用程序捆绑包中的资产目录中，并使用setImage(:):当不缓存图像时-会将图像数据通过空中传输到Apple Watch！
You should use setImageNamed(:) when the image you want to display is either cached on the watch on is in an asset catalog in the watch app’s bundle, and use setImage(:) when the image isn’t cached — this will transfer the image data to the Apple Watch over the air!
因此，我将图像保存在watch应用程序的资产目录中，并切换为使用，
So, I kept my images in the assets catalog on the watch app, and switch to use,
[self.testImage setImageNamed:@"zeroEntering"];
[self.testImage startAnimatingWithImagesInRange:NSMakeRange(0, 4) duration:0.2 repeatCount:100];
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