Objective-C and Swift

Difference between C and Objective-C

20-Nov-14 21:56

Member 11251240 wrote:
Is this possible

Most likely but your question is far from clear. In general terms you would write something like:

C++

// in switch change event handler
if (switch == ON)
    r = .73;
else
    r = .66;

But maybe I just don't understand what you are asking.

online visit9-Jun-14 19:32

online visit

9-Jun-14 19:32

What is the core difference between C programming language and Objective-C programming language? Please help me to know with suitable examples. A lot of Thanks in Advance.

Regards
Online Visit

online visit

future20159-Jun-14 20:57

future2015

9-Jun-14 20:57

C and Objective-C have many differences.
First of all, C is procedure-oriented language while object-C is object-oriented language.
They have different syntaxes.
Objective-C is more familiar to smalltalk than C/C++.
e.g. of calling method
c: foo(param1, para2, ...);
objective-c: [object foo:param];
There are many differences between two languages.
Smile | :)

jian

online visit9-Jun-14 21:31

online visit

9-Jun-14 21:31

thanks sir, but i need some real life example to clear this concept more.

Regards
Online Visit

Richard MacCutchan9-Jun-14 21:00

9-Jun-14 21:00

Google will find you lots of documentation on both languages.

thatraja10-Jun-14 21:11

thatraja

10-Jun-14 21:11

Possible spammer?

thatraja

Code converters | Education Needed | Improve Everything^New

Richard MacCutchan10-Jun-14 21:28

10-Jun-14 21:28

I don't think so. It's quite reasonable to want to learn the differences, just a pity he/she (like so many others) can't make the effort to do a bit of research.

thatraja10-Jun-14 21:42

thatraja

10-Jun-14 21:42

Nothing wrong with his question.
But I checked his user id, signature in his message & links in his profile so thought ....

thatraja

Code converters | Education Needed | Improve Everything^New

Dennis E White11-Jun-14 4:24

11-Jun-14 4:24

after looking at his signature I am thinking the same thing about this being spam now.

Richard MacCutchan11-Jun-14 5:53

11-Jun-14 5:53

I disagree, the question has nothing in it that could be construed as spam. And there are quite a few members who have links to their own business in their signatures.

Dennis E White11-Jun-14 4:22

11-Jun-14 4:22

have to agree with what Richard said earlier....

but let me google that for you[^]

UIWebView Scroll delegate

Manikandan1011-Jun-14 17:31

Manikandan10

11-Jun-14 17:31

5+.

Erdinc2720-May-14 22:17

Erdinc27

20-May-14 22:17

hey all. i have an UIWebView(tarayici in my situation) in view controller. it works fine when its scroll view delegate is not assigned to view controller. but i need to know when it is scrolled that is why i wrote this code.

Objective-C

self.tarayici.scrollView.delegate = self;

but when i write this down then webview acts so weird. for example after this code when i want to scroll then it scrolls only once if i make 3 or 4 attempts. so how can make it work more efficient with that code ?

vemedya.com

Re: UIWebView Scroll delegate

Dennis E White21-May-14 4:38

Re: UIWebView Scroll delegate

21-May-14 4:38

Before you added your UIWebView did you set the user interaction??

Objective-C

webView.userInteraction = YES;

// down here is where you add it as a child

Erdinc2721-May-14 4:48

Erdinc27

21-May-14 4:48

i think i found the solution. The commented UIview animation block locked the main thread i think that is why Scroll View couldnt response to the new touches. but with this new animation block it works well.

Objective-C

- (void) scrollViewDidScroll:(UIScrollView *)scrollView
{
    
    if (self.lastContentOffset > scrollView.contentOffset.y)
    {
        if (self.altView.frame.size.height + self.altView.frame.origin.y > self.screenHeight)
        {
//            [UIView animateWithDuration:0.5f animations:^{
//                self.altView.frame = CGRectMake(0, self.altView.frame.origin.y-1, 320, 48);
//                self.tarayici.frame = CGRectMake(0, self.tarayici.frame.origin.y, 320, self.tarayici.frame.size.height-1);
//            }];
            
            [UIView animateWithDuration:0.5f delay:0 options:UIViewAnimationOptionAllowUserInteraction animations:^{
                self.altView.frame = CGRectMake(0, self.altView.frame.origin.y-1, 320, 48);
                self.tarayici.frame = CGRectMake(0, self.tarayici.frame.origin.y, 320, self.tarayici.frame.size.height-1);
            } completion:^(BOOL finished) {
                
            }];
        }
        
    }
    else if (self.lastContentOffset < scrollView.contentOffset.y)
    {
        if (self.altView.frame.origin.y < self.screenHeight)
        {
//            [UIView animateWithDuration:0.5f animations:^{
//                self.altView.frame = CGRectMake(0, self.altView.frame.origin.y + 1, 320, 48);
//                self.tarayici.frame = CGRectMake(0, self.tarayici.frame.origin.y, 320, self.tarayici.frame.size.height+1);
//            }];
            [UIView animateWithDuration:0.5f delay:0 options:UIViewAnimationOptionAllowUserInteraction animations:^{
                self.altView.frame = CGRectMake(0, self.altView.frame.origin.y + 1, 320, 48);
                self.tarayici.frame = CGRectMake(0, self.tarayici.frame.origin.y, 320, self.tarayici.frame.size.height+1);
            } completion:^(BOOL finished) {
                
            }];
        }
    }
    
    self.lastContentOffset = scrollView.contentOffset.y;

}

vemedya.com

modified 22-May-14 4:15am.

Regarding objective-c's IDE and working OS?!

Amr Bakri14-Apr-14 13:35

Amr Bakri

14-Apr-14 13:35

I am new to objective-c, I have just decided to start learning it today. I have some basic questions, please answer them and sorry if my topic violates the forum codes, I am new to this forum as well.

1)Can I program objective-c on windows operating system OR I have to switch to Linux?
2)what is the recommended IDE for objective-c, is it eclipse?
3)How can I get objective-c to install it?

mit freundlichen Grüßen
Amr

Richard MacCutchan14-Apr-14 21:54

14-Apr-14 21:54

You could find all the answers quite simply by doing your own research[^].

Dennis E White15-Apr-14 5:00

15-Apr-14 5:00

All of your questions really depend on what you are trying to accomplish when programming in Objective-C. If you are just using it as a language the answer is yes you can program with it on windows and linux.

However if you are looking to develop with the Cocoa frameworks and/or for iOS platforms then you will need:

1 - Apple hardware (mini, macbook, iMac, Pro)
2 - XCode will be the IDE that you most likely will want to start with if you are new and learning.
3 - You can get XCode from the App Store on your OSX machine.

Hope this answers your questions.

future201510-Jun-14 3:50

future2015

10-Jun-14 3:50

OS: Mac OS X
Recommended IDE: Xcode
If you want to program objective-c on windows on your pc(not iMac), use VMware Workstation.

Is it possible Java App developed on Net Bean that can Translate into Objective C for IOS

KarstenK29-Sep-14 7:38

KarstenK

29-Sep-14 7:38

It is best to use a Mac mini with at least 8 GB RAM and the Xcode from Apple. You need a developer account from Apple.

Istrongy recommend the professional Website of the famous Ray Wenderlich. If you really want to engage with Ocjective-C than also use the subscriber service for the outstanding video-tutorials.

Press F1 for help or google it.
Greetings from Germany

Member 103822404-Mar-14 9:06

Member 10382240

4-Mar-14 9:06

Is it possible Java App developed on Net Bean that can Translate/convert into Objective C for IOS ....
or how can java application deploy on IOS (iphone)

Re: Is it possible Java App developed on Net Bean that can Translate into Objective C for IOS

Richard MacCutchan4-Mar-14 22:33

OSX Desktop Manager (Quartz Compositor)

4-Mar-14 22:33

See https://www.google.co.uk/search?q=java+ios+phone[^].

Member 1060876119-Feb-14 0:57

Member 10608761

19-Feb-14 0:57

Call me ambitious, but I want to create a desktop window manager for OSX. I want to be able to display windows where I want them, when I want them, how I want them.

Does anyone know where to begin? Can I overwrite the existing desktop manager and replace their code with mine?

Re: OSX Desktop Manager (Quartz Compositor)

Richard MacCutchan19-Feb-14 3:03