Stacker URL Structure

Stacker lets you build what I call "URL-driven iOS apps". That is: you drive your iOS application's navigation, page headings etc all through how you declare your urls.

An example URL that will stack a new page and set the title to 'Profile' will look like: /profile?x_push_page=true&x_page_title=Profile.

Parameter Description
x_push_page stacks the page on top of the current page
x_replace_page replaces the current page with the url
x_pop_page goes back to the previous page
x_pop_page_and_refresh goes back to the previous page and refreshes it
x_pop_page_and_replace goes back to the previous page but replaces it with the url
x_clear_stack goes back to the first page
x_clear_stack_and_refresh goes back to the first page and refreshes it
x_clear_stack_and_replace goes back to the first page but replaces it with the url
x_external_page opens the page in a separate modal view
These parameters are for custom titles, buttons and actions:
Parameter Description
x_page_title=My+Profile sets the page's title to "My Profile"
x_right_button=myButton shows a custom right-hand navigation button (see: custom button handlers)
x_left_button=myButton shows a custom left-hand navigation button (see: custom button handlers)
x_action=myAction will invoke your own custom method (see: custom url actions)

Stacking a new page

If you want to load a new webpage and have it 'stack' (pushed) on top of your current page then you need to specify x_push_page=true and set the page title you wish to have displayed in the native iOS header like so x_page_title=MyPageTitle. If a page title has multiple words, then use + to seperate the words: x_page_title=My+Profile

Open an external website

Navigating to a URL that's external to your application should most likely be opened up in a separate browser. To open a link in a browser view just add the x_external_page=true parameter to the URL.

Stacker will automatically strips out the custom parameter to make sure that the intended URL structure is preserved when viewing the web page:

will open:

Popping back one page

You can go back one page by specifying x_pop_page=true.


Sometimes you may post something to a server and want the page to go back and refresh to show the new content you created. You can redirect the page to a URL that includes x_pop_page_and_refresh=true and this cause Stacker to go back one page and refresh that page to reveal any changes. You can also replace the page with x_pop_page_and_replace=true.

This will go back one page, replace the page with /newsfeed and change the title to News Feed in the navigation bar:


Showing a button in the navigation bar

If you've registered a button with Stacker in your iOS app then you can show that button by calling it in the URL like so:


This will show a button that you've registered called myNavButton. Read about registering and using buttons.

Triggering a custom action

You can execute Objective-C functions by calling a URL that looks like this:


This will execute the action you've registered with Stacker called myAction. Read about registering custom actions.

Note: if you need anything more fancy you may need to look into integrating a javascript bridge into your StackerController. I've been meaning to do this myself but haven't found the time.