circleView.用swift实现,圆盘形的子view轮转动画
Swift轮转动画
静止时:子view对称排列,允许动态添加,0~24个都能较好的显示.
旋转时:中心view不动,子view随手势旋转,最下方子view变大突出.
所有的控件全部加到一个大的背景view上,本质上旋转的是这个背景view,在旋转背景view的同时,让它所有的子控件反向旋转,就实现了现在这种效果.
通过touchMove方法来获取手势,使用transform实现动画效果.
最下方的view变大是循环判断子view.frame.x,当它处于一个范围,并且frame.y小于中心view.frame.y的时候.修改它的transform,来使其变大,并且修改它的tag来标记它已经属于变大状态,当它frame.x超出了预定范围,使其还原.
添加背景透明view,中心圆圈view.
添加周围旋转子view.
添加旋转方法.
交互优化.
也有使用pop框架来实现,长按中心按钮使周围子View旋转效果.项目为EWCircleView-pop,可供参考.
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