omz:forum

**cvp**

@AlbertoAEC and you can comment the load_framework, I think

#load_framework('UIKit')

**cvp**

@AlbertoAEC 👍 and one proof more, if needed, that @JonB is our guru

**cvp**

@JonB iOS 12.1, but don't forget I am not the requester. I only tried to help, without success if without you 😢

**cvp**

@JonB return is None.
Hoping all this spent time will help @AlbertoAEC

**cvp**

@JonB Sorry for the delay, dinner time 😢
No crash but how to check if script ok: keyboard of tf seems usual...

**cvp**

@JonB with

#tfo.setTextContentType_(UITextContentTypeOneTimeCode, argtypes=[c_void_p], restype=None)
#tfo.setTextContentType_(UITextContentTypeOneTimeCode, restype=c_void_p, argtypes=[c_void_p])

#my_method = ObjCInstanceMethod(tfo, 'setTextContentType_')
my_method = ObjCInstanceMethod(tfo, 'setTextContentType:')
my_method.encoding='v@:@'
my_method(UITextContentTypeOneTimeCode)

Fault log is

Fatal Python error: Aborted

Current thread 0x000000016ff97000 (most recent call first):
  File "/var/containers/Bundle/Application/FED7F8B2-4F86-4833-BCFB-C2F8803CD0F1/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/objc_util.py", line 897 in __call__
  File "/private/var/mobile/Containers/Shared/AppGroup/668A7D98-7216-47ED-917D-AA0B6173167E/Pythonista3/Documents/MesTests/test6.py", line 22 in <module>

------------------------------------------------------------------------

Objective-C exception details:

NSInvalidArgumentException: -[UITextField String"]: unrecognized selector sent to instance 0x104289c00

Stack trace:

0   CoreFoundation                      0x00000001ee36feb8 <redacted> + 252
1   libobjc.A.dylib                     0x00000001ed541a40 objc_exception_throw + 56
2   CoreFoundation                      0x00000001ee288d04 <redacted> + 0
3   UIKitCore                           0x000000021b162b38 <redacted> + 280
4   CoreFoundation                      0x00000001ee3757b8 <redacted> + 1412
5   CoreFoundation                      0x00000001ee37745c _CF_forwarding_prep_0 + 92
6   Py3Kit                              0x0000000101468044 ffi_call_SYSV + 68
7   Py3Kit                              0x0000000101463e10 ffi_call_int + 940
8   Py3Kit                              0x000000010145e8bc _ctypes_callproc + 700
9   Py3Kit                              0x0000000101458178 PyCFuncPtr_call + 524
10  Py3Kit                              0x0000000101288794 PyObject_Call + 124
11  Py3Kit                              0x0000000101351f24 _PyEval_EvalFrameDefault + 12284
12  Py3Kit                              0x0000000101355818 _PyEval_EvalCodeWithName + 3132
13  Py3Kit                              0x0000000101356160 _PyFunction_FastCallDict + 340
14  Py3Kit                              0x00000001012889bc _PyObject_FastCallDict + 304
15  Py3Kit                              0x0000000101288ae4 _PyObject_Call_Prepend + 148
16  Py3Kit                              0x0000000101288794 PyObject_Call + 124
17  Py3Kit                              0x00000001012e8c5c slot_tp_call + 180
18  Py3Kit                              0x0000000101288970 _PyObject_FastCallDict + 228
19  Py3Kit                              0x0000000101354abc call_function + 428
20  Py3Kit                              0x00000001013527b4 _PyEval_EvalFrameDefault + 14476
21  Py3Kit                              0x0000000101355818 _PyEval_EvalCodeWithName + 3132
22  Py3Kit                              0x000000010134ee9c PyEval_EvalCode + 56
23  Py3Kit                              0x000000010137e1c4 PyRun_FileExFlags + 188
24  Py3Kit                              0x000000010137d658 PyRun_SimpleFileExFlags + 252
25  Py3Kit                              0x0000000100c24174 -[PYK3Interpreter doRunWithOptions:] + 1176
26  Foundation                          0x00000001eee2239c <redacted> + 336
27  CoreFoundation                      0x00000001ee3001cc <redacted> + 24
28  CoreFoundation                      0x00000001ee30014c <redacted> + 88
29  CoreFoundation                      0x00000001ee2ffa30 <redacted> + 176
30  CoreFoundation                      0x00000001ee2fa8fc <redacted> + 1040
31  CoreFoundation                      0x00000001ee2fa1cc CFRunLoopRunSpecific + 436
32  Foundation                          0x00000001eecef404 <redacted> + 300
33  Foundation                          0x00000001eecef2b0 <redacted> + 148
34  Py3Kit                              0x0000000100c22bb0 -[PYK3Interpreter setupInterpreterThreadRunLoop] + 252
35  Foundation                          0x00000001eee221ac <redacted> + 1040
36  libsystem_pthread.dylib             0x00000001edf8b2ac <redacted> + 128
37  libsystem_pthread.dylib             0x00000001edf8b20c _pthread_start + 48
38  libsystem_pthread.dylib             0x00000001edf8ecf4 thread_start + 4

End of exception details.

**cvp**

@JonB same crash with

#tfo.setTextContentType_(UITextContentTypeOneTimeCode, argtypes=[c_void_p], restype=None)
#tfo.setTextContentType_(UITextContentTypeOneTimeCode, restype=c_void_p, argtypes=[c_void_p])

my_method = ObjCInstanceMethod(tfo, 'setTextContentType_')
my_method.encoding='v@:@'
my_method(UITextContentTypeOneTimeCode)

**cvp**

@JonB same crash ( my last code had been written just before your post about swapping, but I also tested it)

#tfo.setTextContentType_(UITextContentTypeOneTimeCode, argtypes=[c_void_p], restype=None)
tfo.setTextContentType_(UITextContentTypeOneTimeCode, restype=c_void_p, argtypes=[c_void_p])

**cvp**

@JonB just to be sure, my "last" code is

import ui
from objc_util import *

load_framework('UIKit')

UITextContentTypeOneTimeCode=c_void_p.in_dll(c, 'UITextContentTypeOneTimeCode')
#UITextContentTypeOneTimeCode=ns('UITextContentTypeOneTimeCode')

if UITextContentTypeOneTimeCode:
    UITextContentTypeOneTimeCode = ObjCInstance(UITextContentTypeOneTimeCode)
    
tf = ui.TextField() 
tfo=tf.objc_instance.textField()
print(tfo.setTextContentType_.encoding)

tfo.setTextContentType_(UITextContentTypeOneTimeCode, argtypes=[c_void_p], restype=None)

tf.present('sheet')

**cvp**

@JonB with UITextContentTypeOneTimeCode, no more symbol not found but same crash...

**cvp**

@JonB at each crash, I remove Pythonista from tasks list and restart...

**cvp**

@JonB could you remember me the meaning of

b'v0@0:0@"NSString"0'

**cvp**

@JonB

load_framework('UIKit')
UIContentTypeOneTimeCode=c_void_p.in_dll(c, 'UIContentTypeOneTimeCode')

Gives

    UIContentTypeOneTimeCode=c_void_p.in_dll(c, 'UIContentTypeOneTimeCode')
ValueError: dlsym(RTLD_DEFAULT, UIContentTypeOneTimeCode): symbol not found

Thus I use

UIContentTypeOneTimeCode=ns('UIContentTypeOneTimeCode')

As you adviced

**cvp**

@JonB replaced by

tfo.setTextContentType_(UIContentTypeOneTimeCode, argtypes=[c_void_p], restype=None)

Then crash

Fatal Python error: Aborted

Current thread 0x000000016fd07000 (most recent call first):
  File "/var/containers/Bundle/Application/FED7F8B2-4F86-4833-BCFB-C2F8803CD0F1/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/objc_util.py", line 897 in __call__
  File "/private/var/mobile/Containers/Shared/AppGroup/668A7D98-7216-47ED-917D-AA0B6173167E/Pythonista3/Documents/MesTests/test6.py", line 12 in <module>

------------------------------------------------------------------------

Objective-C exception details:

NSInvalidArgumentException: -[UITextField String"]: unrecognized selector sent to instance 0x103a99c00

Stack trace:

0   CoreFoundation                      0x00000001ee36feb8 <redacted> + 252
1   libobjc.A.dylib                     0x00000001ed541a40 objc_exception_throw + 56
2   CoreFoundation                      0x00000001ee288d04 <redacted> + 0
3   UIKitCore                           0x000000021b162b38 <redacted> + 280
4   CoreFoundation                      0x00000001ee3757b8 <redacted> + 1412
5   CoreFoundation                      0x00000001ee37745c _CF_forwarding_prep_0 + 92
6   Py3Kit                              0x00000001013f0044 ffi_call_SYSV + 68
7   Py3Kit                              0x00000001013ebe10 ffi_call_int + 940
8   Py3Kit                              0x00000001013e68bc _ctypes_callproc + 700
9   Py3Kit                              0x00000001013e0178 PyCFuncPtr_call + 524
10  Py3Kit                              0x0000000101210794 PyObject_Call + 124
11  Py3Kit                              0x00000001012d9f24 _PyEval_EvalFrameDefault + 12284
12  Py3Kit                              0x00000001012dd818 _PyEval_EvalCodeWithName + 3132
13  Py3Kit                              0x00000001012de160 _PyFunction_FastCallDict + 340
14  Py3Kit                              0x00000001012109bc _PyObject_FastCallDict + 304
15  Py3Kit                              0x0000000101210ae4 _PyObject_Call_Prepend + 148
16  Py3Kit                              0x0000000101210794 PyObject_Call + 124
17  Py3Kit                              0x0000000101270c5c slot_tp_call + 180
18  Py3Kit                              0x0000000101210970 _PyObject_FastCallDict + 228
19  Py3Kit                              0x0000000101210dbc _PyObject_FastCallKeywords + 192
20  Py3Kit                              0x00000001012dcabc call_function + 428
21  Py3Kit                              0x00000001012d92c4 _PyEval_EvalFrameDefault + 9116
22  Py3Kit                              0x00000001012dd818 _PyEval_EvalCodeWithName + 3132
23  Py3Kit                              0x00000001012d6e9c PyEval_EvalCode + 56
24  Py3Kit                              0x00000001013061c4 PyRun_FileExFlags + 188
25  Py3Kit                              0x0000000101305658 PyRun_SimpleFileExFlags + 252
26  Py3Kit                              0x0000000100bac174 -[PYK3Interpreter doRunWithOptions:] + 1176
27  Foundation                          0x00000001eee2239c <redacted> + 336
28  CoreFoundation                      0x00000001ee3001cc <redacted> + 24
29  CoreFoundation                      0x00000001ee30014c <redacted> + 88
30  CoreFoundation                      0x00000001ee2ffa30 <redacted> + 176
31  CoreFoundation                      0x00000001ee2fa8fc <redacted> + 1040
32  CoreFoundation                      0x00000001ee2fa1cc CFRunLoopRunSpecific + 436
33  Foundation                          0x00000001eecef404 <redacted> + 300
34  Foundation                          0x00000001eecef2b0 <redacted> + 148
35  Py3Kit                              0x0000000100baabb0 -[PYK3Interpreter setupInterpreterThreadRunLoop] + 252
36  Foundation                          0x00000001eee221ac <redacted> + 1040
37  libsystem_pthread.dylib             0x00000001edf8b2ac <redacted> + 128
38  libsystem_pthread.dylib             0x00000001edf8b20c _pthread_start + 48
39  libsystem_pthread.dylib             0x00000001edf8ecf4 thread_start + 4

End of exception details.```

**cvp**

@JonB tfo.setTextContentType_(UIContentTypeOneTimeCode)
File "/var/containers/Bundle/Application/FED7F8B2-4F86-4833-BCFB-C2F8803CD0F1/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/objc_util.py", line 874, in call
raise TypeError('expected %i arguments, got %i' % (len(argtypes) - 2, len(args)))
TypeError: expected 4 arguments, got 1

**cvp**

@JonB print(tfo.setTextContentType_.method_cache['0/'][0].encoding)
AttributeError: 'ObjCInstanceMethod' object has no attribute 'method_cache'

**cvp**

@JonB b'v0@0:0@"NSString"0'

**cvp**

@JonB yes symbol not found, then TypeError: expected 4 arguments, got 1 in

tfo.setTextContentType_(UIContentTypeOneTimeCode)

As I got early

**cvp**

@AlbertoAEC I've read it but I don't understand why it says it waits for4 arguments. The structure doesn't seem to have 4 fields...

**cvp**

If you prefer to be able to set r,g,b colors:

grlayer.setColors_([ObjCClass('UIColor').colorWithRed_green_blue_alpha_(1,0,0,1.0).CGColor(),ObjCClass('UIColor').colorWithRed_green_blue_alpha_(0.3,0,0,1.0).CGColor()])