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
Related
This question already has answers here:
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.
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 9 years ago.
Improve this question
say my goal is that both users of iOS5 and iOS6 should be able to use my application.
What shall I do in order to achieve this?
For example, what I know is, I could set Base SDK to 6.1, and Deployment target to 5.0.
Then, in the code I should ensure I don't use iOS6 specific methods (or use code branching with respondsToSelector if I use iOS6 specific methods).
My question is: should I pay attention to anything else, in order to achieve the goal I mentioned above?
Thank you.
You should set the base SDK to 5.x, because that will not allow you to use ios 6 specific features. Though, support for the twitter feature will not work since they differ by operating system. The best option would be to drop the sdk as low as possible and test it, if it does not work, raise it, and then test again, until it works.
Make sure you do not use autolayout, also note that it becomes increasingly difficult to support the two different sized iPhones natively when taking this approach (because of autolayout). Although per Marcus's comment, this is required. Also, you might as well support iOS 5.1 as anyone who has 5.0 can upgrade (and should).
Lastly, definitely test on both iOS versions. There may be some unexpected outcomes, even small ones (like animation effect for modal form sheets with iOS 6 vs iOS 5).
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.
This question already has answers here:
Playing system sound without importing your own
(11 answers)
Closed 9 years ago.
This is just a question that came off of the top of my head, but does anyone know if there are more sounds built into the system besides the (0x450) click sound? I would assume that there are others that can be put into apps since there are a lot more than just one built into the iPhone.
There is a list posted to AudioServices - iPhone Development Wiki. I've not yet figured out if using this in the following way is grounds for rejection:
AudioServicesPlaySystemSound(1103);
Don't forget to include:
#import <AudioToolbox/AudioToolbox.h>
Check all system sounds with: iOSSystemSoundsLibrary
This question already has answers here:
iPhone Data Usage Tracking/Monitoring
(7 answers)
Closed 9 years ago.
I am trying to understand how does an app like DataMan work. Even if it runs on the background, how can it measure the bandwidth allocation of the other apps?
Most apps like that inject a proxy to all your data calls. Through that they measure the amount of bandwidth you are consuming.
There is no way to measure data you are using outside of your app. You can track it for your own network call within your app though.