This question already has answers here:
How to generate QR code in iPhone?
(4 answers)
Closed 9 years ago.
Is there any One having sample app or Idea about generating QR CODE generating using some input data by user,like ID,Name,Address,etc.
thanks.
You can opt here for generating QR code
these are third party library
1) https://github.com/myang-git/QR-Code-Encoder-for-Objective-C
2) https://github.com/kuapay/iOS-QR-Code-Generator
but if you really want to know the concept this is a good start
http://www.onbarcode.com/products/iphone_barcode/barcodes/qrcode.html
Related
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Where are the UIKit Framework implementation files located?
(2 answers)
Closed 6 years ago.
I was just wondering if there is a way to read the internal implementation of Apple's API on ios? For example, is there a way I can see how "setNeedsDisplay()" function of UIView is implemented internally? I think this will help me understand how the code actually works.
The source code to the Apple frameworks is not publicly-available. You can disassemble the framework code, but unless you're really good with assembly language, you probably won't learn much.
This question already has answers here:
Swift: print() vs println() vs NSLog()
(6 answers)
Closed 7 years ago.
What is the difference between NSLog(), println, and print?
From my experience and understanding, they all write in the Console/Debugging area but why is there the change in Swift v1.2 and v2.0?
If you use 2.0 then print will offer more functionality, but they are still the same thing. Please refer to the documentation to see the added functionality.
https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/
Also don't use NSLog if you are using Swift
This question already has answers here:
Detecting current iPhone input language
(6 answers)
Closed 7 years ago.
I was able to retrieve the list of installed keyboards through NSUserDefaults and AppleKeyboards, but I wasn't able to find out which one is the current user selected. Anyway to do so programmatically?
Try using this:
[UITextInputMode currentInputMode].primaryLanguage
If you use NSLog, you will see something like fr-FR, pt-BR etc...
This question already has answers here:
api for showing native calculator in iOS app
(2 answers)
Closed 9 years ago.
Is it possible to start the iPhone calculator from within an iOS app?
I find it really annoying to have to leave an app and open the calculator just to "trig out" a right triangle and then return to the original app. I have a calculator class of my own however I would prefer not to reinvent the wheel for my app; especially with all the edge cases involved with Trig.
Can anyone offer some insight whether this is possible or suggest a possible implementation?
No, the calculator app doesn't have a public schema that you can use
to invoke it
This question already has an answer here:
Closed 10 years ago.
Possible Duplicate:
How can one open a power point document in an iPad application?
I have to present a power point presentation from a web in an ipad application.Is there any free libraries in ios to convert .ppt format in to any other format ??How can I implement animations for that presentation .Please give some idea for implementing the above.
Thanks in advance
I have not tried this but Apple's documentation says that a UIWebView is able to display .ppt documents. Search for their tech. note QA1630 for a complete list of supported types.