...after executing -layout
编辑： admin 2017-09-03
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看文档DiscussionThe default implementation of this method does nothing on iOS 5.1 and earlier.Otherwise,the default implementation uses any constraints you have set to determine the size and position of any subviews.Subclasses can override this method as needed to perform more precise layout of their subviews.You should override this method only if the autoresizing and constraint-based behaviors of the subviews do not offer the behavior you want.You can use your implementation to set the frame rectangles of your subviews directly.查看原帖>>
类似问题
类似问题1：为什么故事童话故事.都是由从前,以前开始的.
骗小孩的
类似问题2：1、 12分之12是真分数还是假分数?2、 6分之4 除以 6分之2 3、 6分之4 除 4、4除以6分之4的答案[数学科目]
答案如下：
（1） 12分之12是真分数还是假分数?
∵12/12=1,假分数的定义为≥1.
∴12/12为假分数.
答：12/12为假分数.
（2）6分之4 除以 6分之2 的答案
4/6÷2/6
=4/6×3
=2
答：等于2.
（3） 6分之4 除 2的答案
4/6÷2
=4/6×1/2
=1/3
答：三分之一
(4)4除以6分之4的答案
4÷4/6
=4×6/4
=6
答：等于6
过程很详细,希望能解决您的问题!
类似问题3：帮我看看这句话有错没3QI'm a little busy this time,because school will begins at the last of this month and I must finish my all homework.帮我改一下,尽量符合语法习惯,[英语科目]
I am a little busy this time because school will begin at the end of this month but I must finish all (of) my homework.
this time这次,at this time在这个时刻,两个都符合语法,用哪个都行；
用but表示转折；
all (of）要放在形容词性物主代词前面,英国英语不要“of”,美国英语要加“of”.