Changing TabBar on-the-fly?

[lumala]

Hi guys, I'm quite new in iPhone Programming, but I'm trying to do my best cause I have some skills in OOP.

I'm creating an iPhone app based on a four element Tabbar. I would like to use other functionalities already implemented by a friend of mine in his own iPhone app (a three elements TabBar app).
Since I would like my app's users could "switch" to old application (3 tabs) by pressing on one of my app's tab, my question is: is it possible to do this, maybe by "popping out my tabbar" (4 tabs) and "pushing in the old tabbar" (3 tabs)?

For a better problem description, we could say that I'm trying to implement a "new mode" and "old mode" in the same application.

Thank you in advance.

P.S. I'm using Xcode 3.2.2 on a Macbook Pro coreDuo and 3.1.3 iPhone simulator

Luca

[spikeyfish2]

Originally Posted by lumala

Hi guys, I'm quite new in iPhone Programming, but I'm trying to do my best cause I have some skills in OOP.

I'm creating an iPhone app based on a four element Tabbar. I would like to use other functionalities already implemented by a friend of mine in his own iPhone app (a three elements TabBar app).
Since I would like my app's users could "switch" to old application (3 tabs) by pressing on one of my app's tab, my question is: is it possible to do this, maybe by "popping out my tabbar" (4 tabs) and "pushing in the old tabbar" (3 tabs)?

For a better problem description, we could say that I'm trying to implement a "new mode" and "old mode" in the same application.

Thank you in advance.

P.S. I'm using Xcode 3.2.2 on a Macbook Pro coreDuo and 3.1.3 iPhone simulator

Luca

Couldn't provide any code as I haven't seen your source, but what I would do is have a method, say it's called "-(void)setMode", and in that method, have:

if (currentMode == oldMode) {

oldTabBar.hidden = NO;
newTabBar.hidden = YES;

} else if (currentMode == newMode) {

oldTabBar.hidden = YES;
newTabBar.hidden = NO;

} else {
    // error handler, or just set one of the above, or prompt user for mode
}

Of course, you would have to do the same for every element that would differ for each mode, so if that's too much, you could always set up 2 views/viewsets where one would be the old app, and the other the new.