index property
The index of the currently selected tab.
Changing the value of index updates the actively displayed tab of the CupertinoTabScaffold controlled by this CupertinoTabController, as well as the currently selected tab item of its CupertinoTabScaffold.tabBar.
The value must be greater than or equal to 0, and less than the total number of tabs.
Implementation
int get index => _index;
Implementation
set index(int value) {
assert(value >= 0);
if (_index == value) {
return;
}
_index = value;
notifyListeners();
}