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Bigkoo / Android-PickerView

This is a picker view for android , support linkage effect, timepicker and optionspicker.（时间选择器、省市区三级联动）
Apache License 2.0
13.45k stars 3.45k forks source link

关于源码中的一个画面偏移计算的问题 #654

Closed GodRuiCollection closed 1 year ago

GodRuiCollection commented 6 years ago

WheelView的onDraw方法里有个计算translate的部分: float translateY = (float) (radius - Math.cos(radian) radius - (Math.sin(radian) maxTextHeight) / 2D); 其中 (Math.sin(radian) * maxTextHeight) / 2D 是什么意思...算的是什么?

xiaosong520 commented 6 years ago

@GodRuiCollection 可以参考这篇博客看一下: Android-PickerView系列之源码解析篇（二）

GodRuiCollection commented 6 years ago

@xiaosong520 谢谢~