bug: $ionicConfig Setting Backbutton Icon Does Not Work

[calendee]

Type: bug

Platform: all

The documentation indicates that $ionicConfig.backButton.icon('ion-ios-home') should be able to change the back button icon inside app controllers.

However, this does not work. However, when requesting the current back button icon with $ionicConfig.backButton.icon(), it answers with the correct back button even though the REAL back button in the nav-bar has not changed.

Sample Code Pen : http://codepen.io/calendee/pen/wBYamw

controller : function($ionicConfig, $timeout) {
  console.log("Page 2!");
  $ionicConfig.backButton.icon('ion-ios-home');
  $timeout(function() {
    console.log("Back button should be : " + $ionicConfig.backButton.icon());
  }, 300);
}

[mhartington]

So you ned to use this inside a run function, not a controller.

  ..run(function($ionicConfig){
  $ionicConfig.backButton.icon('ion-ios-home');
})

Additionally, $ionicConfig can also set and get config values during the run phase and within the app itself.

[calendee]

@mhartington This bit of the documentation suggests it could be anywhere:

Additionally, $ionicConfig can also set and get config values during the run phase and within the app itself.

"within the app itself" really lends it to seem "in a controller", right? If so, then perhaps that should be edited out?

So, is it not possible to change the back button icon after the app is initialized?

[calendee]

@mhartington Here's an example of this NOT working in .run:

http://codepen.io/calendee/pen/qEJKrX

Notice in every $stateChangeStart event, I randomly choose a back button icon. I tell $ionicConfig to use that back button. I then ask $ionicConfig what the back button is. It properly answers with the randomly selected back button. However, the back button is clearly always defaulting to ion-chevron-left.

It seems to me, $ionicConfig does not actually apply the new icon to the view.

Am I missing something obvious here or can you re-open this?

[mhartington]

Cool, will pass this along to @adamdbradley

[calendee]

Great. FYI : As noted originally, when used in a controller, the same behavior occurs. When you assign an icon and then ask config what is assigned - it answers correctly but the view is wrong. So, I feel like $ionicConfig WOULD work in a controller if the underlying issue is resolved.