[self.navigationController.navigationBar setTitleTextAttributes:
@{NSFontAttributeName:[UIFont systemFontOfSize:19], NSForegroundColorAttributeName:[UIColor whiteColor]}];本文共 222 字，大约阅读时间需要 1 分钟。
[self.navigationController.navigationBar setTitleTextAttributes:
@{NSFontAttributeName:[UIFont systemFontOfSize:19], NSForegroundColorAttributeName:[UIColor whiteColor]}];转载于:https://www.cnblogs.com/Bo-tree/p/5161301.html