Интуит. Разработка приложений для iOS. Лекция 11. Расширенные возможности устройств

Расширенные
возможности устройств
Разработка приложений для iOS
Лекция 11
Глеб Тарасов
gleb34@gmail.com

Вспомним прошлое
занятие

Какие UIViewController от Apple
работают только на iPad?

Какие UIViewController от Apple
работают только на iPad?
UIPopoverController, UISplitViewController

Какие есть два вида
автоматического растягивания
интерфейсов в iOS?

Какие есть два вида
автоматического растягивания
интерфейсов в iOS?
старый и более простой Autosizing,
новый и мудреный Autolayout

Как отключить AutoLayout в
StoryBoard?

Как отключить AutoLayout в
StoryBoard?
снять галку «use auto layout»
в первой вкладке справа

Акселерометр,
гироскоп

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

Когда телефон лежит на столе:

x = 0

y = 0

z = -1
ускорение +1.0g вдоль этой оси
1.0 по оси
Акселерометр

- (void)viewDidLoad
{
[super viewDidLoad];
self.manager = [[CMMotionManager alloc] init];
[self.manager startAccelerometerUpdates];
self.timer = [NSTimer scheduledTimerWithTimeInterval:1/30.0
target:self
selector:@selector(doAccUpdate)
userInfo:nil
repeats:YES];
}
- (void)doAccUpdate
{
CMAcceleration acc = self.manager.accelerometerData.acceleration;
NSLog(@"%g %g %g", acc.x, acc.y, acc.z);
}
#import <CoreMotion/CoreMotion.h>

- (void)viewDidLoad
{
self.motionManager = [[CMMotionManager alloc] init];
[self.manager startGyroUpdates];
!
self.timer = [NSTimer scheduledTimerWithTimeInterval:1/30.0
target:self
selector:@selector(doGyroUpdate)
userInfo:nil
repeats:YES];
}
- (void)doGyroUpdate
{
CMRotationRate rate = self.motionManager.gyroData.rotationRate;
NSLog(@"%g %g %g", rate.x, rate.y, rate.z);
}
радианы в секунду
#import <CoreMotion/CoreMotion.h>

- (void)viewDidLoad
{
self.manager = [[CMMotionManager alloc] init];
}
!
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[self.manager startGyroUpdates];
self.timer = ...
}
!
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
[self.timer invalidate];
[self.manager stopGyroUpdates];
}

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

self.manager = [[CLLocationManager alloc] init];
self.manager.delegate = self;
self.manager.desiredAccuracy = kCLLocationAccuracyHundredMeters;
[self.manager startUpdatingLocation];
@interface MyViewController : UIViewController<CLLocationManagerDelegate>
- (void)locationManager:(CLLocationManager *)m
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
CLLocationCoordinate2D coord = newLocation.coordinate;
NSLog(@"%g %g", coord.latitude, coord.longitude);
}
Координаты
Центр Москвы: 55.747598, 37.626801

Компас
- (void)locationManager:(CLLocationManager *)manager
didUpdateHeading:(CLHeading *)newHeading
{
NSLog(@"%g", newHeading.magneticHeading);
}
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[self.locationManager setDelegate:self];
[self.locationManager startUpdatingHeading];
0 - север, 90 - восток, 180 - юг, 270 - запад

Воспроизведение аудио

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

Интуит. Разработка приложений для iOS. Лекция 11. Расширенные возможности устройств

- (void)remoteControlReceivedWithEvent:(UIEvent *)receivedEvent
{
if (receivedEvent.type == UIEventTypeRemoteControl)
{
switch (receivedEvent.subtype)
{
case UIEventSubtypeRemoteControlPlay:
[self.player play];
break;
case UIEventSubtypeRemoteControlPause:
[self.player pause];
break;
case UIEventSubtypeRemoteControlPreviousTrack:
[self prevTrack];
break;
case UIEventSubtypeRemoteControlNextTrack:
[self nextTrack];
break;
default:
break;
}
}
}
- (void) viewDidAppear:(BOOL)animated
{
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
[self becomeFirstResponder];
}

- (IBAction)buttonTapped
{
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback
error:nil];
[[AVAudioSession sharedInstance] setActive:YES
error:nil];
NSURL *url = [[NSBundle mainBundle] URLForResource:@"ddt"
withExtension:@"mp3"];
self.player = [[AVAudioPlayer alloc] initWithContentsOfURL:url
error:nil];
[self.player play];
}

UIImage *img = [UIImage imageNamed:@"ddt"];
MPMediaItemArtwork *art = [[MPMediaItemArtwork alloc] initWithImage:img];
!
NSDictionary *dict = @{ MPMediaItemPropertyTitle : @"Свобода",
MPMediaItemPropertyAlbumTitle : @"Иначе",
MPMediaItemPropertyAlbumTrackNumber : @15,
MPMediaItemPropertyAlbumTrackCount : @16,
MPMediaItemPropertyArtist : @"ДДТ",
MPMediaItemPropertyPlaybackDuration : @125,
MPNowPlayingInfoPropertyPlaybackRate : @1,
MPMediaItemPropertyGenre : @"Рок",
MPMediaItemPropertyArtwork : art };
!
[MPNowPlayingInfoCenter defaultCenter].nowPlayingInfo = dict;

AVQueuePlayer
NSURL *url1 = [[NSBundle mainBundle] URLForResource:@"song1"
AVPlayerItem *item1 = [[AVPlayerItem alloc] initWithURL:url1];
NSArray *items = @[ item1, item2, item3 ];
self.player = [[AVQueuePlayer alloc] initWithItems:items];
[self.player play];

Воспроизведение видео

- (IBAction)buttonTapped
{
NSURL *url = [[NSBundle mainBundle] URLForResource:@"sample"
MPMoviePlayerViewController *vc = [[MPMoviePlayerViewController alloc]
initWithContentURL:url];
[self presentMoviePlayerViewControllerAnimated:vc];
}

Фото с камеры
UIImagePickerController *c = [[UIImagePickerController alloc] init];
c.sourceType = UIImagePickerControllerSourceTypeCamera;
c.delegate = self;
c.mediaTypes = @[ (NSString *)kUTTypeImage ];
!
[self presentViewController:c animated:YES completion:nil];
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *img = info[UIImagePickerControllerEditedImage];
NSLog(@"img %@", img);
[picker dismissViewControllerAnimated:YES completion:nil];
}
#import <MobileCoreServices/MobileCoreServices.h>

Фото из библиотеки
c.delegate = self;
c.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
c.mediaTypes = @[ (NSString *)kUTTypeImage ];
!
[self presentViewController:c animated:YES completion:nil];
#import <MobileCoreServices/MobileCoreServices.h>

Видео с камеры
c.sourceType = UIImagePickerControllerSourceTypeCamera;
c.delegate = self;
c.mediaTypes = @[ (NSString *)kUTTypeMovie ];
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSURL *videoUrl = [info objectForKey:UIImagePickerControllerMediaURL];
NSLog(@"%@", videoUrl);
[picker dismissViewControllerAnimated:YES completion:nil];
}

Работа с микрофоном

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

iBeacon
http://habrahabr.ru/company/touchinstinct/blog/195104/

Уведомления
local

notiﬁcations
remote

notiﬁcations

Local
+ (void)addNotificationForDate:(NSDate *)date
{
UILocalNotification *n = [[UILocalNotification alloc] init];
n.fireDate = date;
n.timeZone = [NSTimeZone defaultTimeZone];
n.alertBody = @"Уведомление";
n.alertAction = @"Открыть";
n.soundName = UILocalNotificationDefaultSoundName;
n.applicationIconBadgeNumber = 1;
n.userInfo = @{ @"custom_id" : @12 };
[[UIApplication sharedApplication] scheduleLocalNotification:n];
}

- (void)application:(UIApplication *)application
didReceiveLocalNotification:(UILocalNotification *)n
{
if (application.applicationState == UIApplicationStateActive)
return;
!
NSNumber *num = n.userInfo[@"custom_id"];
// реагируем на уведомление
}
В AppDelegate:
- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
...
UILocalNotification *n =
launchOptions[UIApplicationLaunchOptionsLocalNotificationKey];
if (n)
{
// реагируем на уведомление
}
...
}

Remote
apns-php https://code.google.com/p/apns-php/
ruby apns https://github.com/jpoz/APNS
Как сгенерировать сертификат: https://code.google.com/p/apns-php/wiki/CertiﬁcateCreation

{
[UIApplication.sharedApplication registerForRemoteNotificationTypes:
(UIRemoteNotificationTypeAlert
| UIRemoteNotificationTypeSound
| UIRemoteNotificationTypeBadge)];
...
}
В AppDelegate:
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
{
// отправляем токен на сервер
}

didReceiveRemoteNotification:(NSDictionary *)userInfo
{
// если было активно - ничего не делаем
if (application.applicationState == UIApplicationStateActive)
{
return;
}
// и тут реагируем на уведомление
}
{
...
NSDictionary *userInfo =
launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey];
if (userInfo)
{
// тут реагируем на уведомление
}
...
}

Распознавание жестов

UIGestureRecognizer
- (void)addGestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
UIView:

UITapGestureRecognizer
UITapGestureRecognizer *t = [[UITapGestureRecognizer alloc]
initWithTarget:self
action:@selector(tapped)];
t.numberOfTapsRequired = 1;
t.numberOfTouchesRequired = 1;
[self.view addGestureRecognizer:t];

UIPanGestureRecognizer
UIPanGestureRecognizer *p = [[UIPanGestureRecognizer alloc]
initWithTarget:self
action:@selector(pan:)];
[self.view addGestureRecognizer:p];
- (void)pan:(UIPanGestureRecognizer *)sender
{
CGPoint t = [sender translationInView:self.view];
CGPoint v = [sender velocityInView:self.view];
NSLog(@"%@", NSStringFromCGPoint(t));
NSLog(@"%@", NSStringFromCGPoint(v));
}

UIPinchGestureRecognizer
UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc]
initWithTarget:self
action:@selector(pinch:)];
[self.view addGestureRecognizer:pinch];
- (void)pinch:(UIPinchGestureRecognizer *)sender
{
CGFloat scale = sender.scale;
NSLog(@"%g", scale);
}

UIRotationGestureRecognizer
UIRotationGestureRecognizer *r = [[UIRotationGestureRecognizer alloc]
initWithTarget:self
action:@selector(rotate:)];
[self.view addGestureRecognizer:r];
- (void)rotate:(UIRotationGestureRecognizer *)sender
{
CGFloat r = sender.rotation;
NSLog(@"%g", r);
}

• UISwipeGestureRecognizer

• UILongPressGestureRecognizer
UISwipeGestureRecognizer *s = [[UISwipeGestureRecognizer alloc]
initWithTarget:self
s.direction = UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:s];
UILongPressGestureRecognizer *p = [[UISwipeGestureRecognizer alloc]
initWithTarget:self
p.minimumPressDuration = 0.5;
[self.view addGestureRecognizer:p];

UIGestureRecognizerDelegate
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer;
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
shouldRecognizeSimultaneouslyWithGestureRecognizer:
(UIGestureRecognizer *)otherGestureRecognizer;
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
shouldReceiveTouch:(UITouch *)touch;

UIGestureRecognizerState
typedef enum {
UIGestureRecognizerStatePossible,
!
UIGestureRecognizerStateBegan,
!
UIGestureRecognizerStateChanged,
!
UIGestureRecognizerStateEnded,
!
UIGestureRecognizerStateCancelled,
UIGestureRecognizerStateFailed,
UIGestureRecognizerStateRecognized = UIGestureRecognizerStateEnded
} UIGestureRecognizerState;

Домашнее задание
• продумать, что из пройденного можно
использовать в вашем приложении

• добавить поддержку

• если ничего — поиграться в отдельном
приложении

Всё!
Глеб Тарасов

gleb34@gmail.com

twitter.com/pilot34

Интуит. Разработка приложений для iOS. Лекция 11. Расширенные возможности устройств

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Интуит. Разработка приложений для iOS. Лекция 11. Расширенные возможности устройств