UIColorPickerViewController In iOS 14

[cvp]

If you want the new iOS 14 Color Picker, please try

# coding: utf-8
from objc_util import *
import ui

def colorPickerViewControllerDidFinish_(_self, _cmd, _controller):
	#print('colorPickerViewControllerDidFinish')
	UIColorPickerViewController = ObjCInstance(_controller)
		
def colorPickerViewControllerDidSelectColor_(_self, _cmd, _controller):
	#print('colorPickerViewControllerDidSelectColor')
	UIColorPickerViewController = ObjCInstance(_controller)
	cl = UIColorPickerViewController.selectedColor()
	rgb = (cl.red(),cl.green(),cl.blue())
	coloredButtonItem(UIColorPickerViewController.buttonItem, rgb)

methods = [colorPickerViewControllerDidFinish_, colorPickerViewControllerDidSelectColor_]
protocols = ['UIColorPickerViewControllerDelegate']
try:
		MyUIColorPickerViewControllerDelegate = ObjCClass('MyUIColorPickerViewControllerDelegate')
except Exception as e:
	MyUIColorPickerViewControllerDelegate = create_objc_class('MyUIColorPickerViewControllerDelegate', methods=methods, protocols=protocols)
	
def coloredButtonItem(btn,rgb):
	import ui
	if rgb:
		with ui.ImageContext(32,32) as ctx: 
			path = ui.Path.rect(0,0,32,32)
			ui.set_color(rgb)
			path.fill()		
			btn.image = ctx.get_image().with_rendering_mode(ui.RENDERING_MODE_ORIGINAL)

def UIColorPickerViewController(w, h, alpha_slider=True, title='', rgb=None, popover=None):
	v = ui.View()
	v.name = title
	v.rgb = rgb
	vc = ObjCInstance(v)
	colorpicker = ObjCClass('UIColorPickerViewController').new().autorelease()
	#print(dir(colorpicker))
	delegate = MyUIColorPickerViewControllerDelegate.alloc().init()
	colorpicker.delegate = delegate	
	
	colorpicker.setSupportsAlpha_(alpha_slider)	
	if rgb:
		color = ObjCClass('UIColor').colorWithRed_green_blue_alpha_(rgb[0], rgb[1], rgb[2], 1.0)
		colorpicker.setSelectedColor_(color)

	clview = colorpicker.view()
	v.frame = (0,0,w,h)
	vc.addSubview_(clview)
	done_button = ui.ButtonItem(title='ok')
	def tapped(sender):
		cl = colorpicker.selectedColor()
		v.rgb = (cl.red(),cl.green(),cl.blue())
		v.close()
	done_button.action = tapped
	color_button = ui.ButtonItem()
	coloredButtonItem(color_button,rgb)
	v.right_button_items = [done_button,color_button]

	colorpicker.buttonItem = color_button
	
	if popover:
		x,y = popover
		v.present('popover', popover_location=(x,y))
	else:
		v.present('sheet')

	v.wait_modal()
	return v.rgb 	
	
# Protect against import	
if __name__ == '__main__':
	mv = ui.ImageView()
	mv.name = 'Test UIColorPickerViewController'
	mv.image = ui.Image.named('test:Peppers')
	b1 = ui.ButtonItem()
	b1.title = '🎨'
	def b1_action(sender):
		w,h = ui.get_screen_size()
		rgb = UIColorPickerViewController(w,h,alpha_slider=True,title='Select a color')
	b1.action = b1_action
	b2 = ui.ButtonItem()
	b2.title = '💉'
	def b2_action(sender):
		# compute x,y of an ui.ButtonItem
		vi = ObjCInstance(sender).view()
		r = vi.convertRect_toView_(vi.bounds(),ObjCInstance(mv))
		# x,y in screen coordinates, not in view
		x,y,w,h = r.origin.x,r.origin.y,r.size.width,r.size.height
		x,y = x+w/2, y+h
		w,h = 200,50
		rgb = UIColorPickerViewController(w,h, alpha_slider=False, popover=(x,y))
	b2.action = b2_action
	mv.right_button_items =(b1,b2)
	mv.present('fullscreen')

[mikael]

@cvp, well done! I had some problems with it, I think the wait_modal is the trick.

[cvp]

@mikael no problem for me but I use sheet and popover and you are on iPhone, aren't you?

[cvp]

And I don't know why I have two topics and the 2nd one is not editable

[mikael]

@cvp, by the way, the one I was really excited about in iOS 14 was the inline date/time picker style, but could not get it to be anything except the good old big rollers.

[ingiestein]

@cvp Amazing! I had been looking for a color picker solution like this. Thank you!

[cvp]

@mikael said:

inline date/time picker style, but could not get it to be anything except the good old big rollers.

Sorry, I didn't understand. You did not succeed to get it?

Édit: Perhpas, does Pythonista need to be upgraded?