iPhone/Python Inquiry

[Crashed]

I lack experience in the iPhone SDK and Objective-C, but I was hoping you guys could help me understanda thing or two so I could develop applications in a language I'm more comfortable with (Python).

I wanted to give one of my controls a color, so I looked on this forum to see how it would be done and found:

	[label setText:@"Hello World"]; 
	[label setTextColor:[UIColor blueColor]];

Now, I was hoping it would be as simple as control.setTextColor_(UIColor.blueColor) but my application just crashes (still haven't figured out a way to print or log errors).

Does anyone know where I could find blueColor, or, alternatively how to build my own color?

Other than the HelloWorld app (which I used religiously) there's no resources or information I can find on the net on iphone/python. So because of that I'll post my demo program, in case it'll help any future developers who check forum following the same goal.

import sys
import objc
from _uicaboodle import UIApplicationMain
from objc import YES, NO, NULL

objc.loadBundle('UIKit', globals(), '/System/Library/Frameworks/UIKit.framework')

class Application(UIApplication):
    @objc.signature('v@:@')
    def applicationDidFinishLaunching_(self, unused):
        # Initialize the window and view.
        self.window = UIWindow.alloc().initWithFrame_(UIHardware.fullScreenApplicationContentRect())
        self.view = UIView.alloc().initWithFrame_(self.window.bounds())

        # Create the navigation bar
        self.navbar = UINavigationBar.alloc().initWithFrame_(((0, 0), UINavigationBar.defaultSize()))
        self.navbar.setBarStyle_(1)
        self.view.addSubview_(self.navbar)

        # Create and add the navigation bar
        self.navbar.pushNavigationItem_(UINavigationItem.alloc().initWithTitle_('iChatters'))

        navbar_height = self.navbar.bounds()[0][1] + self.navbar.bounds()[1][1]

        # Create a textview
        self.textview = UITextView.alloc().initWithFrame_(((4, navbar_height + 4), (100, 24)))
        #self.textview.setText_(UIColor.blueColor_)
        self.view.addSubview_(self.textview)

        # Create a button!
        self.button = UIThreePartButton.alloc().initWithFrame_(((4 + 50, navbar_height + 4 + 50), (100, 24)))
        self.button.setTitle_('CLICK ME')
        self.button.setShowPressFeedback_(YES)
        self.button.setEnabled_(YES)
        self.view.addSubview_(self.button)

        # Setup the window
        self.window.orderFront_(self)
        self.window.makeKey_(self)
        self.window._setHidden_(NO)
        self.window.setContentView_(self.view)

UIApplicationMain(sys.argv, Application)

[jonc]

As far as I know you can only write python for a jailbroken phone.

I don't know python so your code was foreign to me, but you seem to be on the right track. I think we could offer you more help if it was in objective-c.

[mxweas]

Look at saurik's documentation for the python version of UITextView, UITextView in python redirects to the renamed UITextView from old toolchain. setTextColor will take a CGColorRef and I believe sauriks python port will not include the new sdk class's for NDA reasons. Therefore UIColor/UIFont and other class's that are new since 1.1.4 will not be available.

Max

[Gik254]

Define a color
ex.
bgColorBLUE = UIColor.colorWithRed_green_blue_alpha_(0.7,0.74,1. 0,1.0)
fgColorDarkBlue = UIColor.colorWithRed_green_blue_alpha_(0.0,0.01,0. 38,1.0)
# values are of course (R, G, B, transparency) from 0 to 1

and then use as such:
field.setBackgroundColor_(bgColorBLUE)
field.setColor_(fgColorDarkBlue)

(where field is a UITextLabel, or any other object you want)

(I did this in an app (derived from HelloPython) and it works fine)

[Gik254]

Now can you tell me how to read the value of a UIDatePicker in a similar situation (PyObjC program)?

I define it as: self.datePicker = UIDatePicker.alloc().initWithFrame_(myframe)

I set the date I want with: self.datePicker.setDate_(mydate)
but when I try to access the value (dialed by the user) I cant find a way...

There is no self.datePicker.getDate_() or self.datePicker.date or any other I could guess... (and the documentation does not help...)

[Gik254]

OK, I found it (it was fairly stupid!)

the answer was:
self.datePicker.date() # GMT date
self.datePicker.hour() # Local Hour
and the rest as:
self.datePicker.minute() # Minutes, etc