三胎一直是老百姓关注的话题，城市生育年龄的年轻人对二胎、三胎的热情不高，但在农村生三胎非常常见，最近听说三胎政策开放了。我家在农村现在已经有两个儿子了，我和我丈夫两个都想要女儿，结果女儿是棉袄，听朋友
I need to make my little guy (in a UIIamgeView) jump forward and it has to look natural. I want to know is there a way to do it with CoreAnimation (beginAnimation/com开发者_如何转开发mitAnimation)?
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