About the TabBar hide, feel you judge some mistakes.

[ChildrenGreens]

if self.tabBarController != nil && self.tabBarController?.tabBar.isTranslucent == true {
frame.size.height -= self.tabBarController!.tabBar.frame.height
}

Modified into

if self.tabBarController != nil && self.tabBarController?.tabBar.isTranslucent == false {
frame.size.height -= self.tabBarController!.tabBar.frame.height
}

[lfarah]

@duanyicanyuan can you open a PR explaining about the improvement?