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Brief Description of the PR
在ios14之后版本,当text组件设置lines时,计算的组件高度要小于实际高度,导致底部内容被截断
Demo:
http://dotwe.org/vue/af51c5dcc72ea2363b548cb3079c8927
Documentation:
CTLineGetTypographicBounds() 函数存在问题,通过CTFrameGetLineOrigins()计算位置差来估算高度