feat: ability to set Icon in Share dialog

[josh-m-sharpe]

Feature Request

Describe the Feature Request

The interface that opens from the Share plugin Share.share(...) on iOS appears to have a default icon and there's no way to configure it.

This feature request is to update the plugin such that the default Icon doesn't appear.

Platform Support Requested

I've specifically noticed the issue on iOS and not on the Android devices and emulators that we use. However, I suppose it's Android has the same issue and we just haven't seen it.

• Android
• iOS
• Electron
• Web

Describe Preferred Solution

Default to the app icon

Describe Alternatives

1. Ability to pass an icon to Share.share(...)
2. No Icon at all

[jcesarmobile]

That is really automatic, that icon means you are sharing text, if you share a http/https url you'll see the safari icon first and then the favicon of the website you are sharing, and if you share a file url like the one you get from the camera plugin when you take a picture a preview of the image appears.
But if you share both text and url, then the text icon appears.

[josh-m-sharpe]

@jcesarmobile Okay. Docs currently state: Each platform uses a different set of fields, but you should supply them all. - It seems that supplying text, overrides things in a negative or unclear way. Maybe the docs should be updated?

[jcesarmobile]

Yeah, that sentence is wrong, I've removed it in #3051

In ShareOptions section you can see the ? on all params, that means they are optional. It also says dialogTitle is Android only, the other 3 work on both iOS and Android.

[josh-m-sharpe]

It also seems that by not setting text, then when sharing by Gmail/Mail apps the the email subject is not populated. So that lets me choose between:

1. no subject in email (poor user UX)
2. no brand icon (poor marketing UX) -- for a Marketing feature.

I see other apps with sharing links that seem to have both a custom icon and populated email subjects.

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