Has CNContactImageData been changed?

osamu

I have developed the library compatible w/ contacts, and yet handle Google contacts at the same time, importing obj_util library.
After upgrading iOS to 16.4.1, contact.image_data of my library returns funny string as follows;
{length = 4107, bytes = 0xffd8ffe0 00104a46 4946001 0100001 ... cd7d516a 86cfffd9 }

This is the data as it is, " ... " is NOT my abbreviation.

Standard contacts library works just fine.

Does anybody know if there has been any change to iOS? Was image data banned just like note was?

cvp

@osamu I use Pythonista contacts module and Person.image_data still works like before.
I have an IPad Air 5 under iPadOS 16.4.1.

I did not try to print image_data but I use it to create an ui.Image via

img = ui.Image.from_data(person.image_data)

osamu

@cvp Here’s my test script. I’m curious to how it runs on other iOS versions. Pythonista 3 doesn’t run anymore on my iPad Air 1.

—-script
from contacts import *
from objc_util import *

entityType = 0 # case contacts
status = ('notDetermined', 'restricted', 'denied', 'authorized')

def request_access():
CNContactStore = ObjCClass('CNContactStore').alloc().init()
return int(str(CNContactStore.requestAccessForEntityType(entityType).result_(None)))

result = "authorized" if is_authorized() else "denied"
print(f"Module contacts is {result}")

result = status[_request_access()]
print(f"Module objc_util is {result}")

—-result on my iPhone XR
Module contacts is authorized
Module objc_util is restricted

Seems like module contacts is fully granted, while objc_util is not.

cvp

@osamu I don't understand why you need to call requestAccessForEntityType.

I can access contacts with objective C without calling this method.

This works

from objc_util import *
import contacts
import ui

# ObjectiveC contacts
objc_contacts = {}
CNContactStore = ObjCClass('CNContactStore').alloc().init()
#print(dir(CNContactStore))
CNContact = ObjCClass('CNContact')
Containers = CNContactStore.containersMatchingPredicate_error_(None,None)
containers = {}
for Container in Containers:
    id = Container.identifier()
    containers[id] = Container
    #print(dir(Container))
    predicate = CNContact.predicateForContactsInContainerWithIdentifier_(id)
    # keys not exactly like in Apple doc
    # found a sample here https://github.com/tdamdouni/Pythonista/blob/master/contacts/Add%20Twitter%20Profile%20Picture%20to%20iOS%20Contacts.py

    predicate_contacts = CNContactStore.unifiedContactsMatchingPredicate_keysToFetch_error_(predicate, ['familyName','givenName','middleName', 'imageData', 'imageDataAvailable'], None)
    for contact in predicate_contacts:
        # crash if attribute not in fetched contacts
        name = str(contact.givenName()) + '|' + str(contact.middleName()) + '|' + str(contact.familyName())
        cont_per_name = objc_contacts.setdefault(name, [])
        cont_per_name.append(id)
        if contact.imageDataAvailable():
          print(contact.imageData())
          UIImage_data = nsdata_to_bytes(ObjCInstance(contact.imageData()))
          ui_image = ui.Image.from_data(UIImage_data)
          ui_image.show() 	
          break

You said

After upgrading iOS to 16.4.1, contact.image_data of my library returns funny string as follows;
{length = 4107, bytes = 0xffd8ffe0 00104a46 4946001 0100001 ... cd7d516a 86cfffd9 }

It is normal, I think, the ... are only there to show it is a long field.

cvp

@osamu said

Pythonista 3 doesn’t run anymore on my iPad Air 1.

Pythonista 3.4 does not run under iOS 12 but @omz should provide an update, as he said in twitter

alt text

osamu

Alright, thanks.

My fault must be the way I restore the image data. Though my old code used to work.

osamu

@cvp looking forward to the update😃