@JonB Yes,it has been for 3 year since last updated.

@cvp thank you very much.
i prefer to use uitableviewcontroller,it connect data source and delegate automatically.
your code works but when I transfer to UITableViewController,it crashs.

@cvp i don’t understand how to .. i want to subclass a UITableViewcontroller and add a action when i left swipe a cell.
could you show me the right way in the code i provided?
sorry for my poor understanding.

@cvp i try the code below,but still crash,what’s the problem?

from objc_util import *
import ui

@on_main_thread
def main_tableview():
	def tableView_numberOfRowsInSection_(_self, _cmd,_tv,_section):
		return 3
	
	def numberOfSectionsInTableView_(_self, _cmd,_tv):
		return 1
	
	def tableView_cellForRowAtIndexPath_(_self, _cmd,_tv,_indexpath):
		cell=ObjCInstance(_tv).dequeueReusableCellWithIdentifier("cell1") 
		if cell==None:
			cell=ObjCClass('UITableViewCell').alloc().initWithStyle_reuseIdentifier_(3,"cell2")
		
		cell.textLabel().text = 'test'
		return cell.ptr
	
	def tableView_trailingSwipeActionsConfigurationForRowAtIndexPath_(_self,_cmd,_tv,_indexPath): 
		return None
		
	tvc1 = create_objc_class('UITableViewController',ObjCClass('UITableViewController'),methods=[tableView_numberOfRowsInSection_,numberOfSectionsInTableView_,tableView_cellForRowAtIndexPath_,tableView_trailingSwipeActionsConfigurationForRowAtIndexPath_])
	
	return  tvc1.alloc().init().autorelease()	
	
@on_main_thread
def main():

	root_vc = UIApplication.sharedApplication().keyWindow().rootViewController()
	tbc=main_tableview()
	root_vc.presentViewController_animated_completion_(tbc, True, None)
	
if __name__=='__main__':
	main()

@cvp when i comment # return none,i got it.
thanks very much.

@cvp thanks

i have checked _objc_exception.txt and saw nothing in this crash.
try the example you provided,when i do a left swipe,it just show “delete” button.
i have no idea how the code below work

	# set actions if swipe
	UIContextualAction = ObjCClass('UIContextualAction').alloc()
	UIContextualAction.setTitle_("Drizzel's action 😅")
	# block does not have parameter nor return, thus we can use a Python def
	UIContextualAction.setHandler_(handler)
	UIContextualAction.setBackgroundColor_(ObjCClass('UIColor').blueColor().colorWithAlphaComponent(0.5))
	
	UISwipeActionsConfiguration = ObjCClass('UISwipeActionsConfiguration').configurationWithActions_([UIContextualAction])

hey~i need to return none in a objc new class function,but it crash’s when i use return none.how can i solve it? thanks very much.

def tableView_trailingSwipeActionsConfigurationForRowAtIndexPath_(_self,_cmd,_tv,_indexPath):       
		return None

@JonB

thanks.
it seems not convenient for debug, and i still use objc_util as OC bridge.

@JonB

run more than once will raise such errs,then how to solve?

ctypes_patch.make_callback_returnable(CGSize)
File "/private/var/mobile/Containers/Shared/AppGroup/02422888-CC52-45FC-BB53-72013D3F4AFA/Pythonista3/Documents/site-packages/ctypes_patch.py", line 128, in make_callback_returnable
raise ValueError("The ctype {} already has a getfunc")
ValueError: The ctype {} already has a getfunc

latest when i try rubicon_objc.
the code below, run once is normal. run anther time will raise a err.
how can i solve it? thanks in advance

RuntimeError: An Objective-C class named b'Handler' already exists

code:

from rubicon.objc import NSObject, objc_method

class Handler(NSObject):
@objc_method
def initWithValue_(self, v: int):
self.value = v
return self

@objc_method
def pokeWithValue_andName_(self, v: int, name) -> float:
    print("My name is", name)
    return v / 2.0

my_handler = Handler.alloc().initWithValue(42)