Question

I’ve built out the raised-center UITabBar from this GitHub location.

My challenge now is that I can’t figure out how to create a modal view that will appear when the button is pressed.

Has anyone used the idev-recipes RaisedCenterTabBar with luck? How did you implement the modal sheet that appears there?

Alternatively, is there a different gitHub project that has a working custom tab bar with a modal sheet?

Thank you!

Answer 1

I have something similar in a program of mine that I’m working on and would be glad to show you how I do it. I have a couple of viewControllers in a TabBar. I create my Plus button in whichever VC I decide will appear first on the screen in ViewDidLoad.

    // Create a plus button that appears on the tabBar
UIImage *plusButton = [UIImage imageNamed:@"plusbutton.png"];
UIView *tabBarView = [[self tabBarController] view];
addButton = [UIButton buttonWithType:UIButtonTypeCustom];
[addButton setFrame:CGRectMake(127.0, 432.0, [plusButton size].width, [plusButton size].height)];
[addButton setBackgroundImage:plusButton forState:UIControlStateNormal];
[tabBarView addSubview:addButton];
[addButton addTarget:self action:@selector(scalePicker:) forControlEvents:UIControlEventTouchUpInside];    

I make the button a subView of the tabBarController’s view. Later on in the implementation of this VC I have a method called scalePicker: which creates and instance of one of my other VC’s and presents it modally. Here is the code for that: (note: this is the method that I set as a target for the plus button in the code above)

    -(void) scalePicker:(id)sender
{
    // create the view scalePicker, set it's title and place it on the top of the view hierarchy
sp = [[ScalePickerVC alloc] init];
[self presentModalViewController:pickerNavController animated:YES];
}

I hope this helps you,
Good Luck!