[photo_manager] Support for limited access: ask for extra images

[yanivshaked]

Version information

• Device: iPhone 12 Pro
• OS: iOS 14.4.2
• Package Version: v5.4.0+1
• Flutter Version: v2.0.5

Is your feature request related to a problem?
Yes. On iOS 14, a new model of permission was introduced. The user can select only several pictures from the device's gallery and those pictures are available to the picker.
If the user opens the gallery again, he is NOT asked to give more pictures if he wants.
(See how WhatsApp have solved this issue).

Describe the solution you'd like
It should be possible for the user to bring up the native popup asking for more pictures to be added to the selection.
(This is done using the iOS PHPhotoLibrary.shared().presentLimitedLibraryPicker method)

Additional context
This issue is related to photo_manager and the solution should be joint.
I'm attaching a video that shows the problem:

ExampleSelectiveGallery.mp4

This is how WhatsApp solved this issue (we need something similar):

WhatsAppSelectiveGallery.mp4

[AlexV525]

fluttercandies/flutter_photo_manager#385

[yanivshaked]

I think you are too quick closing it; Beside the photo_manager support required, there should be also code supporting it in this plugin.

[AlexV525]

It shouldn't, at least for now.

[blackchineykh]

What should we be doing to handle this situation? I have this issue and i'm not sure what approach to take to resolve it as I have a case where the user has given limited access but there is no way for me to have them change this or go back to selecting other photos

[AlexV525]

What should we be doing to handle this situation? I have this issue and i'm not sure what approach to take to resolve it as I have a case where the user has given limited access but there is no way for me to have them change this or go back to selecting other photos

Please subscribe fluttercandies/flutter_photo_manager#385 for further implementations.

[yanivshaked]

@blackchineykh In general, the photo_manager should support the following:

• Return a new value indicating the user has used limited photo access.
• Allow asking the user to select more images using PHPhotoLibrary.shared().presentLimitedLibraryPicker with a new method.
• Adding the required support for that in this plugin.