1.ViewController底部被TabBar擋住,在ViewController中設(shè)置
self.edgesForExtendedLayout = .top
2.ViewController頂部被navigationbar擋住,設(shè)置
self.edgesForExtendedLayout = .bottom
3.ViewController頂部和底部都被擋住,設(shè)置
self.edgesForExtendedLayout = .init(rawValue: 0)