CupertinoTabController constructor
- int initialIndex = 0,
Creates a CupertinoTabController to control the tab index of CupertinoTabScaffold and CupertinoTabBar.
The initialIndex
defaults to 0. The value must be greater than or equal
to 0, and less than the total number of tabs.
Implementation
CupertinoTabController({ int initialIndex = 0 })
: _index = initialIndex,
assert(initialIndex >= 0);