iphone Programming Touch, Sound, and More! Norman McEntire Founder Servin Flashlight CodeTour TouchCount CodeTour

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1 iphone Programming Touch, Sound, and More! Norman McEntire Founder Servin 1

2 Legal Info iphone is a trademark of Apple Inc. Servin is a trademark of Servin Corporation 2

3 Welcome Welcome! Thank you! My promise to you! Leave with good iphone Prog Info! My Presentation Style Show a few slides Give Live Demos! Questions at any time are great! 3

4 Background Info - 1 BS/MS Computer Engineering University of South Carolina Lead Designer of NCR Tower 32/200 UNIX System V Business Computer Started Servin Corporation in 1995 Windows NT was HOT! Device Drivers, Systems Programs, and Training/Consulting Moved Company to San Diego in

5 Background Info - 2 Mid-2000s: Servin Expands into GNU/Linux Linux Kernel Linux Device Drivers Embedded Linux 2008: Servin Expands into Mobile Development, Training and Consulting iphone and Android 5

6 Servin iphone Activites 1Q 2009 Recorded 15-Module (30 minutes per module) iphone Course A on-line video course for Dashcourses.com Two iphone Apps Approved Other iphone Apps Waiting Approval 6

7 Servin Servin Targeted to those who want to both use the application and understand how the application works 7

8 Servin Servin Targeted to those who want to both use the application and understand how the application works 8

9 Servin 2Q 2009 Roadmap Give really cool SDSIC Presentation! iphone Touch, Sound, and More! Continue Training/Consulting iphone and Andriod Courses (Contact me if you need fast solutions!) Submit Additional Apps to App Store Be Ready for iphone 3.0 Release Including External Accessory w/bluetooth 9

10 What You Need Intel-based Mac Membership in Apple Developer Connection (ADC) iphone SDK Includes everything you need, including IDE and tools (optional) iphone Developer Program Yearly membership to run apps on actual device. 10

11 iphone Programming Overview Xcode For Writing Code! Objective-C (superset of C) Brad Cox goal to extend C language and add Object-Oriented SmallTalk Features Interface Builder For GUI Layout Other Tools Console, Debugger, Organizer, etc. 11

12 Demo 1 Xcode, printf(), Console Xcode New, Project, View-based Apps main.m (.m is Objective-C) Build and Go printf() Run > Console 12

13 main.m: printf() and Console #import <UIKit/UIKit.h> int main(int argc, char *argv[]) { printf("hello iphone!\n"); return 0; [Session started at :55: ] Hello iphone! 13

14 Demo 2 NS, NSLog(), [ ] NS = NextStep NSLog() - NSString NSAutoreleasePool Objective-C class alloc message to allocate memory for an object init message to initialize memory of object release message to release memory 14

15 main.c: NSLog() and Console #import <UIKit/UIKit.h> int main(int argc, char *argv[]) { NSAutoreleasePool *pool = [NSAutoreleasePool alloc]; [pool init]; printf("pool: %p\n", pool); NSLog(@"pool: %@\n", pool); [pool release]; return 0; [Session started at :00: ] pool: 0xe06fd :00: Practice1[3557:20b] pool: <NSAutoreleasePool: 0xe06fd0> 15

16 Demo 3 UIApplication UIApplicationMain C-function AppDelegate.h, AppDelegate.m UIApplication Objective C Class UIApplicationDelegate Objective C Protocol Position with Cursor, Press Option Key, Double- Click to get documetation 16

17 Objective-C Influenced Java Objective-C AppDelegate : NSObject <UIApplicationDelegate> { UIWindow *window; Practice1ViewController *viewcontroller; Java Syntax public class AppDelegate extends Object implements UIApplicationDelegate { UIWindow window; Practice1ViewController viewcontroller; 17

18 AppDelegate.h #import Practice1AppDelegate : NSObject <UIApplicationDelegate> { UIWindow *window; Practice1ViewController (nonatomic, retain) IBOutlet UIWindow (nonatomic, retain) IBOutlet Practice1ViewController 18

19 AppDelegate.m #import "Practice1AppDelegate.h" #import viewcontroller; - (void)applicationdidfinishlaunching:(uiapplication *)application { NSLog(@"self: %@\n", self); // Override point for customization after app launch [window addsubview:viewcontroller.view]; [window makekeyandvisible]; - (void)dealloc { [viewcontroller release]; [window release]; [super 19

20 Demo 4 App Life Cycle UIApplicationDelegate applicationdidfinishlaunching: applicationdidbecomeactive: applicationwillresignactive: applicationwillterminate: NSTimer Type [NSTimer, then press ESC to see choices 20

21 AppDelegate.m (void)dotimer:(nstimer*)thetimer { static int count = 0; NSLog(@"%s: count: %d", FUNCTION, count++); - (void)applicationdidfinishlaunching:(uiapplication *)application { NSLog(@"%s", FUNCTION ); // Override point for customization after app launch [NSTimer scheduledtimerwithtimeinterval:1.0 target:self selector:@selector(dotimer:) userinfo:nil repeats:yes]; [window addsubview:viewcontroller.view]; [window makekeyandvisible]; - (void)applicationdidbecomeactive:(uiapplication *)application { NSLog(@"%s", FUNCTION ); 21

22 AppDelegate.m (void)applicationwillterminate:(uiapplication *)application { NSLog(@"%s", FUNCTION ); - (void)applicationwillresignactive:(uiapplication *)application { NSLog(@"%s", FUNCTION ); 22

23 Demo 5 View Controller ViewController.h ViewController.m viewdidload self.view.backgroundcolor = [UIColor yellowcolor]; [self.view setbackgroundcolor: [UIColor yellowcolor]]; 23

24 ViewController.m #import Practice1ViewController - (void)viewdidload { [super viewdidload]; self.view.backgroundcolor = [UIColor yellowcolor];... UILabel *label = [UILabel alloc]; CGRect frame = CGRectMake(10.0, 10.0, 100.0, 100.0); [label initwithframe:frame]; label.text iphone"; [self.view addsubview:label]; [label release]; 24

25 Demo 6 Interface Builder Interface Builder for building the interface Step 1 Xcode Step 2 Interface Builder ViewController.xib 25

26 ViewController.h #import Practice2ViewController : UIViewController { UILabel (nonatomic, retain) IBOutlet UILabel 26

27 ViewController.m #import label; - (void)viewdidload { [super viewdidload]; self.label.text 27

28 Demo 7 UIButton and IBAction UIButton IBAction ViewController.h ViewController.xib Tools > Connections Inspector 28

29 ViewController.h #import Practice2ViewController : UIViewController { UILabel *label; UIButton *button; NSInteger (nonatomic, retain) IBOutlet UILabel (nonatomic, retain) IBOutlet UIButton NSInteger count; -(IBAction)resetCount:(UIButton *)button; 29

30 ViewController.m #import count; -(IBAction)resetCount:(UIButton *)button { self.label.text self.count = 0; - (void)viewdidload { [super viewdidload];... self.label.text 123"; 30

31 Demo 8 Multitouch UIResponder touchesbegan:withevent: Others (moved, ended, cancelled) -(void)touchesbegan:(nsset *)touches withevent:(uievent *)event UITouch *touch = [touches anyobject]; CGPoint pt = [touch locationinview:self.view]; 31

32 ViewController.m... - (void)touchesbegan:(nsset *)touches withevent:(uievent *)event { self.count++; UITouch *touch = [touches anyobject]; CGPoint pt = [touch locationinview:self.view]; NSString *msg = [[NSString alloc] initwithformat:@"count: %d (x: %1.0f, y: %1.0f)", count, pt.x, pt.y]; self.label.text = msg; [msg release];... 32

33 Demo 9 Sound Part 1 #import <AudioToolbox/AudioToolbox.h> Framework > Add Existing Framework AudioServicesPlaySystemSound( ksystemsoundid_vibrate); Custom Sound SystemSoundID mysndid; AudioServicesCreateSystemSoundID( url, &mysndid); AudioServicesDisposeSystemSoundID(mySndID) 33

34 Demo 9 Sound Part 2 NSString *sndpath = [[NSBundle mainbundle] pathforresource:@ scrollerclick oftype:@ wav ]; CFURLRef url = (CRURLRef) [[NSURL alloc] initfileurlwithpath:@sndpath]; 34

35 ViewController.h #import <UIKit/UIKit.h> #import Practice2ViewController : UIViewController { UILabel *label; UIButton *button; NSInteger count; SystemSoundID (nonatomic, retain) IBOutlet UILabel (nonatomic, retain) IBOutlet UIButton NSInteger SystemSoundID mysndid; -(IBAction)resetCount:(UIButton 35

36 ViewController.m #import mysndid; - (void)touchesbegan:(nsset *)touches withevent:(uievent *)event { AudioServicesPlaySystemSound(kSystemSoundID_Vibrate); AudioServicesPlaySystemSound(mySndID); - (void)viewdidload { [super viewdidload];... NSString *sndpath = [[NSBundle mainbundle] pathforresource:@"scrollerclick" oftype:@"wav"]; CFURLRef url = (CFURLRef) [[NSURL alloc] initfileurlwithpath:sndpath]; AudioServicesCreateSystemSoundID(url, &mysndid);... 36

37 Demo 10 Build for Device Previous Demos: Simulator This Demo: Actual Device Xcode Project > Set Active SDK > Device Build > Clean info.plist : Bundle Identifier Code Sign Identity Run > Console 37

38 Where To Go From Here Use these slides as homework and repeat on your own Additional Info on servin.com Video Course (dashcourses.com) Step-by-Step Tutorials Thank you! Time for Question/Answer Session! 38