selectedIndex 失效问题
var dp:* = TabbedViewNavigator.navigators ;
TabbedViewNavigator.navigators = null;
TabbedViewNavigator.navigators = dp;
TabbedViewNavigator.selectedIndex = data.selectedIndex;
TabbedViewNavigator.validateNow();
var dp:* = TabbedViewNavigator.navigators ;
TabbedViewNavigator.navigators = null;
TabbedViewNavigator.navigators = dp;
TabbedViewNavigator.selectedIndex = data.selectedIndex;
TabbedViewNavigator.validateNow();