Ionic-framework: Remove latency from Modal.onDismiss

[Bouzmine]

Short description of the problem:

I have a modal to input data which is then added to a list after the modal closes, but the new element only appears after the Modal animation end. I measured about 675 ms of latency in my project and 330 ms in Plunkr (less dependencies).

What behavior are you expecting?

300-675 ms of latency

Steps to reproduce:

1. Create a modal and a root page
2. Launch the modal and return data from it
3. Use console.time (before viewCtrl.dismiss and in Modal.onDismiss) to measure how long it took to return data.

Which Ionic Version? 2.x

Plunker that shows an example of your issue

http://plnkr.co/edit/me3Uk0GKWVRhZWU0usad?p=preview

Run ionic info from terminal/cmd prompt:

Cordova CLI: 6.1.1
Gulp version: CLI version 3.9.1
Gulp local: Local version 3.9.1
Ionic Framework Version: 2.0.0-beta.7-201605271904
Ionic CLI Version: 2.0.0-beta.25
Ionic App Lib Version: 2.0.0-beta.15
ios-deploy version: 1.8.6
ios-sim version: 5.0.6
OS: Mac OS X El Capitan
Node Version: v5.0.0
Xcode version: Xcode 7.3.1 Build version 7D1014

[manucorporat]

@Bouzmine We understand your use case, I am going to evaluate adding a new callback that it's executed just after the modal is closed (without delay). Probably something like onWillDismiss, not sure yet.

[iignatov]

@Bouzmine As a workaround you could speed-up the closing of the modal by passing NavOptions to the ViewController.dismiss() method and specifying the duration _(or disable the animation altogether)_.

[Bouzmine]

I do think it's a great workaround but it's by no mean a replacement for a proper onWillDismiss method.

[iignatov]

it's a great workaround but it's by no mean a replacement for a proper onWillDismiss method.

I agree, I mentioned the workaround in case that you want to solve your problem until it's implemented.

[manucorporat]

@Bouzmine @iignatov https://github.com/driftyco/ionic/pull/7060