What's the basic principle of this "tap" function of Apple Watch? - apple-watch

As the picture shows, can anyone explain the basic principle of this "tap" function of Apple Watch?
If not using cellphone, how to realize this function by other means?
the picture is seen by
http://www.apple.com/cn/watch/new-ways-to-connect/

Related

Swift Siri simple Q&A

I would like to have a quite simple Siri extension where I ask something and Siri just answers for Example:
I say:
Hey Siri what do you like in my App?
Siri answers:
I love the Siri integration!
At the Apple website I just found things like payment or messaging apps but no simple Q&A...
Could you give me a sample or an good Hint, where I can find something like I want?
Thank you for your answers!
This is possible with Intents Extension. From your app you add a new Intents Extension and there you create an intent response. In the response you can set whatever you want siri to answer when that intent is being triggered. Check the Soup Chef tutorial from the last WWDC if you want to learn more about it.
For convenience, here is that tutorial: https://developer.apple.com/documentation/sirikit/soup_chef_accelerating_app_interactions_with_shortcuts
You can't ask Siri whatever you want and set what answer you want to get back. Check out the Intent Domains from: https://developer.apple.com/documentation/sirikit and see that there a predefined categories that it can handle.

How iPhone games/apps can connect to other iphones

I wonder how iphone games and apps can connect to other devices with the same app/game. Like games, where you create an account and can play with your friend. Does anyone know a site where it's briefly explained or can anyone just explain in some sentences what the "steps" are. Thanks in advance.
If you had bothered to try you would have found the very first tab "Technologies" on the very first page of Apple's developer site would take you to this page on Networking where the very first item is about GameCenter.
https://developer.apple.com/technologies/ios/networking.html
Check out the tutorials under Network programming at Ray Wenderlich's site. They are nicely done and should help you grasp the main concepts.

Receiving Data from Web iPhone

It's the first time I have done anything like this but wondered what the best way to approach this would be.
I need a web interface which I could enter text, photos and videos, once submitted this can then be seen by users using the app through different feeds and things.
I know its a common thing but what techniques and things should I be learning? I'm not sure where to start.
Any help would be much appreciated as any information would be helpful, thanks.
Some links on documentation:
URL Loading system programming guide
UIWebView class reference
NSURLConnectionDelegate Protocol Reference
There is also NSURLConnectionDataDelegate
I would also recommend you great book by Vandad Nahavandipoor.
The book iOS 5 Programming Pushing the Limits seems great to me.
Good luck.

Developing an iPhone app which is friendly to blind people

I've had a user send me an email to ask if I can make some modifications to my application so that it is more friendly to blind people.
Although he's explained the problems that he is having, I really have no idea on how to approach this. I can't find any guidelines from Apple. Is there any information available, or does anyone have any experience with this sort of thing? Are there some simple things I can do to buttons or images to make them friendly for the blind?
There is a WWDC 2010 video of Session 122 that covers Accessibility and how to add code to your app to help VoiceOver work better. Should be free to view for anyone with an enrolled iOS developer account.
The easiest thing to do is to at least do a setIsAccessibilityElement and setAccessibilityLabel on all your buttons, labels and imageviews (etc.) so that they say something appropriate when a blind person wants to know what they are.
Start by reading the Accessibility Programming Guide for iOS. It covers topics such as the VoiceOver technology that is useful for people with visual impairments or blindness, and how you can program your user interface to work with VoiceOver so that your users can "hear" your user interface.

iPhone UI design...!

I have seen apps in App Store that have really attractive UI.When i make an app i use only the default set of control provided by Interface Builder and my app(even though good in functionality)does not have a UI that can attract people.Is there any ref or sample code that teaches us how to design good UIs for iPhone apps.
Also I want to place a control in my App similar to one in iPhone(i.e the way we unlock the iPhone by sliding a button and the iPhone gets unlocked)how can we do this.Please provide some ref or sample code for it.
There is no simples step by step description of how to make really attractive ui's. It takes both time, skill and a sense of esthetics. However, a good starting point is to thoroughly read your way through apples iphone human interface guidelines:
http://developer.apple.com/iphone/library/documentation/userexperience/conceptual/mobilehig/Introduction/Introduction.html