zsisme
ios核心动画高级技巧

Updated 3 years ago

Jian Ming Zhang (@istig) started discussion #220

a year ago · 0 comments

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    我们在Interface Builder中放置了六个视图,小时、分钟、秒钟各两个,图4.17显示了这六个视图是如何在Interface Builder中放置的。如果每个都用一个淡出的outlets对象就会显得太多了,所以我们就用了一个IBOutletCollection对象把他们和控制器联系起来,这样我们就可以以数组的方式访问视图了。清单4.6是代码实现。

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图4.17 不存在上下文中

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