The document discusses various capabilities and features available to iOS applications, including determining internet connectivity, detecting WiFi or cellular network connection, accessing the device's accelerometer and gyroscope, determining device orientation, obtaining location data and compass heading, recording and playing audio and video, taking photos and videos with the camera, and more. It provides code examples for implementing many of these features.

1. Разработка под iOS
Лекция 4
Возможности телефона
Глеб Тарасов

2. Интернет

3. Reachability
http://developer.apple.com/library/ios/#samplecode/Reachability/Introduction/Intro.html

4. Есть ли интернет?
Reachability *r = [Reachability
reachabilityForInternetConnection];
if (r.status != NotReachable)
{
NSLog(@"Есть интернет");
}

5. WiFi или 3G
Reachability *r = [Reachability reachabilityForLocalWiFi];
if (r.status != NotReachable)
{
NSLog(@"Есть wifi");
}

6. Акселерометр,
гироскоп

7. Ориентация
UIInterfaceOrientation orientation =
[UIApplication sharedApplication].statusBarOrientation;
if (UIInterfaceOrientationIsPortrait(orientation))
NSLog(@"portrait");
else
NSLog(@"landscape");
typedef enum {
UIInterfaceOrientationPortrait,
UIInterfaceOrientationPortraitUpsideDown,
UIInterfaceOrientationLandscapeLeft,
UIInterfaceOrientationLandscapeRight
} UIInterfaceOrientation;

8. Акселерометр
@interface MyViewController : UIViewController<UIAccelerometerDelegate>
- (void)viewDidLoad
{
[super viewDidLoad];
[[UIAccelerometer sharedAccelerometer] setDelegate:self];
[[UIAccelerometer sharedAccelerometer] setUpdateInterval:0.01];
}
#pragma mark - UIAccelerometerDelegate
- (void)accelerometer:(UIAccelerometer *)accelerometer
didAccelerate:(UIAcceleration *)acceleration
{
NSLog(@"%g %g %g", acceleration.x, acceleration.y, acceleration.z);
}

9. 1.0 по оси
ускорение +1.0g вдоль этой оси
Когда телефон лежит на столе:
x=0
y=0
z = -1

10. Фильтр нижних
частот
http://ru.wikipedia.org/wiki/Фильтр_нижних_частот
http://developer.apple.com/library/ios/#samplecode/
AccelerometerGraph/Introduction/Intro.html

11. Гироскоп

12. - (void)viewDidLoad
{
[super viewDidLoad];
) motionManager = [[CMMotionManager alloc] init];
timer = [NSTimer scheduledTimerWithTimeInterval:1/30.0
target:self
selector:@selector(doGyroUpdate)
userInfo:nil
repeats:YES];
}
- (void)doGyroUpdate
{
CMRotationRate rate = motionManager.gyroData.rotationRate;
) NSLog(@"%g %g %g", rate.x, rate.y, rate.z);
}

13. Геолокация

14. Координаты
@interface Locator : NSObject<CLLocationManagerDelegate>
manager = [[CLLocationManager alloc] init];
manager.delegate = self;
manager.desiredAccuracy = kCLLocationAccuracyHundredMeters;
[manager startUpdatingLocation];
- (void)locationManager:(CLLocationManager *)m
) didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
CLLocationCoordinate2D coord = newLocation.coordinate;
NSLog(@"%g %g", coord.latitude, coord.longitude);
}

15. Компас
locationManager = [[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager setDelegate:self];
[locationManager startUpdatingHeading];
- (void)locationManager:(CLLocationManager *)manager
didUpdateHeading:(CLHeading *)newHeading
{
NSLog(@"%g", newHeading.magneticHeading);
}

16. Работа с микрофоном

17. SpeakHere
http://developer.apple.com/library/ios/#samplecode/
SpeakHere/Introduction/Intro.html

18. Воспроизведение аудио

19. AVAudioPlayer
NSString *path = [[NSBundle mainBundle] pathForResource:@"file"
ofType:@"mp3"];
NSURL *url = [NSURL fileURLWithPath:path];
AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:url
error:nil];
[player play];

21. - (void) viewDidAppear:(BOOL)animated
{
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
[self becomeFirstResponder];
}
- (void)remoteControlReceivedWithEvent:(UIEvent *)receivedEvent
{
if (receivedEvent.type == UIEventTypeRemoteControl)
{
switch (receivedEvent.subtype)
{
case UIEventSubtypeRemoteControlTogglePlayPause:
[self playPause];
break;
case UIEventSubtypeRemoteControlPreviousTrack:
[self rewind];
break;
case UIEventSubtypeRemoteControlNextTrack:
[self forward];
break;
default:
break;
}
}
}

22. Воспроизведение видео

23. MPMoviePlayerViewController
NSString *path = [[NSBundle mainBundle] pathForResource:@"file"
ofType:@"mp4"];
NSURL *url = [NSURL fileURLWithPath:path];
MPMoviePlayerViewController *c
= [[MPMoviePlayerViewController alloc] initWithContentURL:url];
[self presentModalViewController:c animated:YES];

24. Фото и видео

25. Видео с камеры
UIImagePickerController *c = [[UIImagePickerController alloc] init];
c.delegate = self;
c.sourceType = UIImagePickerControllerSourceTypeCamera;
c.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie];
[self presentModalViewController:c animated:YES];
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
[picker dismissModalViewControllerAnimated:YES];
}

27. Фото из альбомов
UIImagePickerController *c = [[UIImagePickerController alloc] init];
c.delegate = self;
c.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSURL *url = [info objectForKey:UIImagePickerControllerMediaURL];
}

29. Что писать?

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31. Education

34. Entertainment

37. Photo & Video

40. Navigation

43. Games

48. Варианты приложений

49. Задачи
Решение задач (вроде diofant.ru)
Задания ЕГЭ

50. Пониматика
Детские развивающие приложения
Найди спрятанные объекты
Соедини линии по числам и получи объект
Комиксы
Раскраска

51. Сервисы
ТВ-программа