iOS 15 Feature Notification action icons

[emawby]

This is branched off of main which currently has some broken IAM unit tests (already fixed in another PR).

iOS 15 introduced UNNotificationActionIcons (read about them here). This PR supports adding action icons from OneSignal notification payloads.

There are 2 types of icons:

1. System icons which are SF Symbols included in all iOS Apps.
2. Template icons which are icon resources included by developers in their app bundles.

Icons can be added to notification actions through a new initializer method, and can themselves be initialized as either system or template icons.

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This change is 

[jkasten2]

Reviewable status: 0 of 4 files reviewed, 1 unresolved discussion (waiting on @emawby, @Jeasmine, and @nan-li)

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iOS_SDK/OneSignalSDK/Source/OneSignalHelper.m, line 577 at r1 (raw file):

            icon = [UNNotificationActionIcon iconWithTemplateImageName:button[@"templateIcon"]];
        }
        return [UNNotificationAction actionWithIdentifier:button[@"id"]

The selector actionWithIdentifier:title:options:icon: is new in the beta version of Xcode:
https://developer.apple.com/documentation/usernotifications/unnotificationaction/3747237-actionwithidentifier?language=objc

We will need to use reflection to call this so it can compile with Xcode 11.0 as we do so to keep bit code compatibility for the release build.

[jkasten2]

Reviewable status: 0 of 4 files reviewed, 2 unresolved discussions (waiting on @emawby, @Jeasmine, and @nan-li)

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iOS_SDK/OneSignalSDK/Source/OneSignalHelper.m, line 580 at r1 (raw file):

                                                    title:button[@"text"]
                                                  options:UNNotificationActionOptionForeground
                                                     icon:icon];

icon might be nil here, not sure if the iOS API is ok with that.

[emawby]

Reviewable status: 0 of 4 files reviewed, 2 unresolved discussions (waiting on @emawby, @Jeasmine, @jkasten2, and @nan-li)

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iOS_SDK/OneSignalSDK/Source/OneSignalHelper.m, line 580 at r1 (raw file):

Previously, jkasten2 (Josh Kasten) wrote…

icon might be nil here, not sure if the iOS API is ok with that.

the icon parameter is marked nullable so this should be fine

[emawby]

Reviewable status: 0 of 4 files reviewed, 2 unresolved discussions (waiting on @Jeasmine, @jkasten2, and @nan-li)

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iOS_SDK/OneSignalSDK/Source/OneSignalHelper.m, line 577 at r1 (raw file):

Previously, jkasten2 (Josh Kasten) wrote…

The selector actionWithIdentifier:title:options:icon: is new in the beta version of Xcode:
https://developer.apple.com/documentation/usernotifications/unnotificationaction/3747237-actionwithidentifier?language=objc

We will need to use reflection to call this so it can compile with Xcode 11.0 as we do so to keep bit code compatibility for the release build.

Done but its a bit ugly since we cannot use performSelector

[jkasten2]

Reviewed 1 of 4 files at r1, 3 of 3 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Jeasmine and @nan-li)

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iOS_SDK/OneSignalSDK/Source/OneSignalHelper.m, line 577 at r1 (raw file):

Previously, emawby (Elliot Mawby) wrote…

Done but its a bit ugly since we cannot use performSelector

no problem, if you think of a better way in the future we can clean it up.