![Hello World
- (void)viewDidLoad
{
[super viewDidLoad];
// Release any retained subviews of the main
view.
NSLog( "Hello World");
}](https://image.slidesharecdn.com/amrita2102mobileappdevelopment-121103022406-phpapp02/85/ios-mobile-app-development-intro-18-320.jpg)
![Button Click
Hello World Button
Button Types Image
[btnSend setImage:[UIImage imageNamed:@"home.png"] forState:
UIControlStateNormal];
Rounded Rect:
[btnSave setTitle:@"Go" forState:UIControlStateNormal];
DEMO !](https://image.slidesharecdn.com/amrita2102mobileappdevelopment-121103022406-phpapp02/85/ios-mobile-app-development-intro-21-320.jpg)
ios-mobile-app-development-intro
- 1. Mobile App Development With Apple iOS -Presented By Remesh Govind.
- 2. Mobile History ● Mobiles have moved up with capabilities ● Simple Mobile ● To More Compact ● To Smart Phones ● Operating Systems ○ Embedded (custom) ○ J2ME ○ Android ○ Apple iOS ○ Symbian ○ BlackBerry OS
- 3. J2ME Java Based Portable (based on version) -- Connected Limited Device Configuration (CLDC) Does not have many classes from J2SE ● JVMs ● Brew ● Sun ● Other Vendor
- 4. Android Google Tech Open Handset Alliance based ( AT&T, Verizon etc) Open Source Java and Non Java based development. Java - SDK Non-Java - NDK ( Native Development Kit )
- 5. Symbian Symbian ( 2009 - Royalty Free - Symbian Foundation) Symbian acquired by Nokia - Nokia acquires QT. - Adds QT Support to Symbian Excellent Platform - J2ME Support - C/C++ based development
- 6. BlackBerry Blackberry. Excellent Devices for Business. - IMHO this is a panic reaction - Not doing so well ( BB tab was being sold a 15 K INR last X'Mas) - Java Based development - Limited API - Need you to consume BB service.
- 7. Apple ( iOS 5.x) Apple uses ARM based Processors Operating System is called iOS. Current Major Version 5.x Last hardware released - The New iPad. -- Has more resolution than a HD TV !! -- Same from factor( almost ) !!
- 8. Devices that can be used iPhone 3 - iPhone 3 arm v6, - 3GS armv7 iPhone 4 iPad ( iPad , iPad 2 the new iPad) - Ax - new iPad uses Arm A5X processor - iPod - 4th Gen +
- 9. What is needed ● Apple Mac Box ● Apple iOS Device ● Apple Xcode
- 10. Tools ● XCode ○ IDE ● Instruments ○ Testing and Analytics Tool ● Interface Builder ○ User To build UI ( .xib ) files ● Language Objective C
- 11. Application Entry Point -main() ● Create Applciation Class Object ● Create Delegate to manage Application Events ● Create Views ( Screens) ○ Manage Event Life cycles
- 12. Views - Life Cycle ● init /initWithNibName ● didLoad ● willAppear ● didAppear ● shouldAutorotateToInterfaceOrientation ● viewWillDisappear ● viewDidUnload ● didReceiveMemoryWarning ( any time !)
- 13. Fences ● Application load ○ Has 20 secs to start ○ Any Later - App will be Killed/ operation stopped. ● Forbes 214 Million app launch tests ○ iOS Likely to crash more often than Android.
- 14. Crash Reports on Start Source : Forbes
- 15. Plan for crashes Save User Data. - Database - App Storage ( NSUserDefaults / Android SharedPreferenes )
- 16. Demo Creation of Simple App - Tool XCode - Lets Watch the demo
- 17. DataTypes Common (C / C++) int long float double chat Objects: NSString NSArray/ NSMutableArray More .....
- 18. Hello World - (void)viewDidLoad { [super viewDidLoad]; // Release any retained subviews of the main view. NSLog( "Hello World"); }
- 19. Interface Builder Create UI ● Different For iPad and iPhone ● App needs to detect current device & orientation Orientation : Human Interface Guidelines - Support Both versions of same orientation atleast. ● LandscapeLeft/LandScapeRight ● Portrait / PortraitUpsideDown
- 20. Orientation Demo -(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation) interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown ); }
- 21. Button Click Hello World Button Button Types Image [btnSend setImage:[UIImage imageNamed:@"home.png"] forState: UIControlStateNormal]; Rounded Rect: [btnSave setTitle:@"Go" forState:UIControlStateNormal]; DEMO !
- 22. Universal Apps ● Universal Apps Demo !
- 23. Load a new View Demo!
- 24. More Demos and Discussions if time permits!