MADRID · NOV 21-22 · 2014 From iOS To Android(or reverse) José Manuel Ortega Candel @jmortegac http://www.linkedin.com/jmortega1 

MADRID · NOV 21-22 · 2014 https://speakerdeck.com/jmortega/ 

MADRID · NOV 21-22 · 2014 ARCHITECTURE / iOS / ANDROID TOOLS XCODE vs ANDROID STUDIO APPLICATIONS / PERMISSIONS / PRIVACY USER INTERFACE STATIC ANALYSIS CODE / TESTING CERTIFICATES AND SIGNING EMULATORS / MEMORY MANAGEMENT/ DATABASE APP PUBLISHING / DEVELOPER LIBRARIES 

MADRID · NOV 21-22 · 2014 ARCHITECTURE 

MADRID · NOV 21-22 · 2014 Android Architecture DALVIK ART Just-In-Time (JIT) Compilation Ahead-Of-Time (AOT) Compilation Cache builds up over time Boot times are faster Cache is built at first boot Rebooting device takes significantly longer Apps compiled when executed Stores Compiled Apps Consumes much more internal storage space 

MADRID · NOV 21-22 · 2014 iOS Architecture 

MADRID · NOV 21-22 · 2014 TOOLS 

MADRID · NOV 21-22 · 2014 IDES Android iOS https://developer.android.com/sdk/ installing/studio.html APPCode http://www.jetbrains.com/objc/ 

MADRID · NOV 21-22 · 2014 on Android Studio  InteliJ IDE Based  Maven based Build Dependency  Combines Ant && Maven / Gradle Tasks 

MADRID · NOV 21-22 · 2014 Android Studio  Templates 

MADRID · NOV 21-22 · 2014 Android Studio  Project settings 

MADRID · NOV 21-22 · 2014 XCode  Provides multiple ios app templates 

MADRID · NOV 21-22 · 2014 Xcode Project  Testing on device  Base SDK 

MADRID · NOV 21-22 · 2014 Interface Builder 

MADRID · NOV 21-22 · 2014 Instruments on iOS  Debugging, performance analysis, and testing  Real-time CPU, memory, disk, energy, and network usage  Threads, network, and energy usage  I/O system and thread activity  Allows detecting memory leaks 

MADRID · NOV 21-22 · 2014 APPLICATIONS 

MADRID · NOV 21-22 · 2014 Android Applications 

MADRID · NOV 21-22 · 2014 Android Layout Manager+ Device Preview 

MADRID · NOV 21-22 · 2014 Android Applications import android.os.Bundle; import android.app.Activity; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);} } public static void invokeWebBrowser(Activity activity){ Intent intent = new Intent(Intent.ACTION_VIEW); intent.setData(Uri.parse("http://www.google.com")); activity.startActivity(intent); }  Activity  Intents [Explicit,Implicits]  Services  Content Providers[Sharing data between apps]  Fragments from 3.0 

MADRID · NOV 21-22 · 2014 Android components 

MADRID · NOV 21-22 · 2014 Android’s RecyclerView  Adapter  ViewHolder  LayoutManager  ItemDecoration  ItemAnimator https://developer.android.com/training/material/lists-cards.html 

MADRID · NOV 21-22 · 2014 Android Navigation Drawer 

MADRID · NOV 21-22 · 2014 Layout Systems UINavigationBar UITableView TextView TextView LinearLayout TextView TextView 

MADRID · NOV 21-22 · 2014 LifeCycle Applications 

MADRID · NOV 21-22 · 2014 LifeCycle Applications - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window.rootViewController = self.navigationController; [self.window makeKeyAndVisible]; return YES; } 

MADRID · NOV 21-22 · 2014 iOS Applications  C  Objective –C,[message passing]  Swift  PlayGround for leaning Swift  Programming with Objetive-C in windows/ linux  http://www.gnustep.org/ https://developer.apple.com/swift 

MADRID · NOV 21-22 · 2014 Objective-C vs Swift NSString *string = @“hello”; let string = "hello" as NSString let s: NSString = "hello" var string: NSString = "hello" string= "Hello" NSLog(@“This is a string”); println("This is a string"); NSArray *myArray = [NSArray arrayWithObjects:@“string1", @“string2", nil]; var myArray = [“string1", "string2"] var myArray : [String] = [“string1", "string2"] 

MADRID · NOV 21-22 · 2014 iOS Applications  @synthesize will generate getter and setter methods for your @property @interface MyObject:NSObject { NSString *_name; } @property (nonatomic,assign) NSString* name; @end @implementation MyObject @synthesize name = _ name; @end 

MADRID · NOV 21-22 · 2014 UIKit Framework  UIButton  UILabel  UIImageView  UITextField  UIPickerView  UIWindow  UIView  UIViewController  NSObject,NSString,NSMutableString, NSDate,NSNumber  Collections(NSArray, NSDictionary, NSSet,NSEnumerator) Foundation Framework 

MADRID · NOV 21-22 · 2014 iOS Applications  UIViewController is the parent for view Controllers 

MADRID · NOV 21-22 · 2014 iOS Applications  Organizer 

MADRID · NOV 21-22 · 2014 iOS Applications  Snippets in XCode 

MADRID · NOV 21-22 · 2014 iOS Applications 

MADRID · NOV 21-22 · 2014 iOS Applications #import @interface MyViewController : UIViewController { IBOutlet UITableView *table; NSMutableData *dataReceive; } @property(nonatomic,assign) NSMutableData *dataReceive; @end  UIViewController interface MyViewController.h  implementation MyViewController.m @implementation MyViewController @synthesize dataReceive,table; - (void)viewDidLoad{ [super viewDidLoad]; NSURL *url = [[NSURL alloc] initWithString:@“url"]; self.dataReceive = [[NSMutableData data] retain]; } 

MADRID · NOV 21-22 · 2014 iOS Applications  UINavigationController 

MADRID · NOV 21-22 · 2014 iOS Applications  UINavigationController - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; //Recuperamos el ViewController UIViewController *rootViewController = [storyboard instantiateInitialViewController]; // Creamos un UINavigationController, que se encargará de controlar y almacenar los distintos viewControllers de nuestra aplicación. UINavigationController *navigationController = [[UINavigationController alloc]initWithRootViewController:rootViewController]; //Asignamos el navigationController como principal. self.window.rootViewController = navigationController; return YES; } -(IBAction)goToPantalla2:(id)sender { UIStoryboard *storyBoard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; //Obtenemos el controlador con Identifier "Pantalla2" Pantalla2ViewController *pantalla2Controller = [storyBoard instantiateViewControllerWithIdentifier:@"Pantalla2"]; //Lanzamos el controlador en el navigation de forma animada: [self.navigationController pushViewController:pantalla2Controller animated:YES]; } 

MADRID · NOV 21-22 · 2014 Design patterns on iOS Applications  MVC  Target-action  Delegate and protocols A delegate is an object that control of the user interface for that event. 

MADRID · NOV 21-22 · 2014 ViewPager / UIPageViewController  Swipe gesture 

MADRID · NOV 21-22 · 2014 Multilanguage NSString *localizedString = NSLocalizedString(@"Hello",@“DefaultString"); 

MADRID · NOV 21-22 · 2014 Certificates and Signing Android iOS Self-signed certificate Apps are signed by developers Apple certificate Apps are signed by Apple Java Keytool Generate a distribution provisioning profile Export + Sign APK iOS Provisioning Portal Debug and distribution certificate App ID (unique ID of your app) Set of device unique identifiers Developer certificate 

MADRID · NOV 21-22 · 2014 Android Studio  Export + Sign APK 

MADRID · NOV 21-22 · 2014 PERMISSIONS 

MADRID · NOV 21-22 · 2014 Permissions on Android  AndroidManifest.xml  Protection mechanism to interact with other applications 

MADRID · NOV 21-22 · 2014 Permissions on iOS o Declare your application requirements in its manifest-like Info.plist. This is used only for ensuring device compatibility. o UIRequiredDeviceCapabilities allows you to list ’hardware-like’ capabilities that your app needs. o AppStore reads this information for filter installer devices. 

MADRID · NOV 21-22 · 2014 Permissions on iOS  Privacy Analysis Tools for iOs Applications  patia.unileon.es 

MADRID · NOV 21-22 · 2014 Privacy Permission Manager 

MADRID · NOV 21-22 · 2014 USER INTERFACE 

MADRID · NOV 21-22 · 2014 Evolution 

MADRID · NOV 21-22 · 2014 Android Material design  Minimalist and consistency  Transitions, animiations  Cards https://developer.android.com/training/material/get-started.html 

MADRID · NOV 21-22 · 2014 Android Material design  Ldrawer  https://github.com/kanytu/android-material-drawer-template https://github.com/IkiMuhendis/LDrawer <item name="android:colorPrimary"> @color/primary</item> <item name="android:colorPrimaryDark"> @color/primary_dark</item> <item name="android:colorAccent"> @color/accent</item> <item name="android:textColorPrimary"> @color/text_primary</item> <item name="android:textColor"> @color/text_secondary</item> <item name="android:navigationBarColor"> @color/primary_dark</item> 

MADRID · NOV 21-22 · 2014 Android Material design  https://github.com/google/iosched 

MADRID · NOV 21-22 · 2014 Android Fragments  Fragment is a chunk of user interface with its own life cycle.  Fragment must exist within an Activity  Interaction with fragments is done through FragmentManager  Fragment API was introduced in API 11  http://developer.android.com/tools/support-library 

MADRID · NOV 21-22 · 2014 Android Fragments 

MADRID · NOV 21-22 · 2014 iOS  Master-Detail template  UISplitViewController 

MADRID · NOV 21-22 · 2014 Notifications 

MADRID · NOV 21-22 · 2014 STATIC ANALYSIS CODE 

MADRID · NOV 21-22 · 2014 Static analysis code on Android Studio  Inspect Profile  Lint 

MADRID · NOV 21-22 · 2014 Static analysis code on Java projects  SonarQube  Sonnar-runner 

MADRID · NOV 21-22 · 2014 Static analysis code on XCode  Static Analyzer  Detect memory leaks 

MADRID · NOV 21-22 · 2014 TESTING 

MADRID · NOV 21-22 · 2014 Mobile Application Testing TYPES Unit Testing Functionality Testing Integration Testing Regression Load Testing Stress Testing Performance Usability Testing 

MADRID · NOV 21-22 · 2014 Mobile Application Testing 

MADRID · NOV 21-22 · 2014 CheckList  Rotating the screen  Behavior of when network is not available  Navigation between screens  Behavior of app if app is running for longer period of time and checking memory 

MADRID · NOV 21-22 · 2014 Testing on Android  Unit & Integration,TDD  Junit  RoboElectric  Acceptance,BDD  RobotiumTesting User Interface  Calabash 

MADRID · NOV 21-22 · 2014 Unit testing on iOS  XCTest #import #import “TestObject.h" @interface TestOjectLogicTests : XCTestCase { @private TestObject *object; } @end 

MADRID · NOV 21-22 · 2014 EMULATORS 

MADRID · NOV 21-22 · 2014 Emulator vs Simulator Android iOS Emulator Simulator Very slow integrated with SDK Integrated with Xcode Emulates hardware and software Simulates only software Launched apps are equal binaries from the apps compiled for Device CPU Launched apps are different binaries from the apps compiled for Device CPU 

MADRID · NOV 21-22 · 2014 Genymotion  Integration with Eclipse and Android Studio  MULTI OS Compatible with Linux,Windows and Mac  Requires VirtualBox 

MADRID · NOV 21-22 · 2014 Alternatives  http://jimulabs.com/ for Android live preview  https://appthwack.com/ for testing in the cloud with real devices 

MADRID · NOV 21-22 · 2014 MEMORY MANAGEMENT 

MADRID · NOV 21-22 · 2014  Android Handles memory management automatically Garbage Collector  iOS release, retain, autorelease ARC(Automatic Reference Counting)  Developer maintain the count number for each object  Destroys object when reference counting become 0  @autoreleasepool  With ARC, compiler set this methods where its necessary 

MADRID · NOV 21-22 · 2014 ARC  Migrating to ARC  Project Build Settings 

MADRID · NOV 21-22 · 2014 DATA PERSISTENCE 

MADRID · NOV 21-22 · 2014 Android iOS SQLite android.database.sqlite  Tables and relations Core Data  Objects  DataModel Content Providers /data/data/ /databases/ Only acces with root DataModel editor in Xcode for register objects and their relationships 

MADRID · NOV 21-22 · 2014 iOS Core Data 

MADRID · NOV 21-22 · 2014 Alernatives http://realm.io/ Android and iOS Object-oriented API C++ Core 

MADRID · NOV 21-22 · 2014 SHARED ACTIONS 

MADRID · NOV 21-22 · 2014 Android private ShareActionProvider mShareActionProvider; mShareActionProvider.setShareIntent(getDefaultShareIntent()); private Intent getDefaultShareIntent(){ Intent intent = new Intent(Intent.ACTION_SEND); //IMPLICIT INTENT intent.setType("text/plain"); intent.putExtra(Intent.EXTRA_TEXT,"Extra Text"); return intent;} 

MADRID · NOV 21-22 · 2014 iOS - (IBAction)shareButton:(UIBarButtonItem *)sender { NSString *textToShare = @“textToShare"; UIImage *imageToShare = [UIImage imageNamed:@"yourImage.png"]; NSURL *myWebsite = [NSURL URLWithString:@"http://www.example.com/"]; NSArray *objectsToShare = @[textToShare, imageToShare ,myWebsite]; UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:objectsToShare applicationActivities:nil]; NSArray *excludeActivities = @[UIActivityTypeAirDrop,UIActivityTypePrint]; activityVC.excludedActivityTypes = excludeActivities; [self presentViewController:activityVC animated:YES completion:nil]; }  UIActivityViewController 

MADRID · NOV 21-22 · 2014 CHECK CONNECTIVITY 

MADRID · NOV 21-22 · 2014 Check connectivity on Android  ConnectivityManager public static boolean checkConnectivity(Context context) { ConnectivityManager cm =(ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo activeNetwork = cm.getActiveNetworkInfo(); return activeNetwork != null && activeNetwork.isConnectedOrConnecting(); } 

MADRID · NOV 21-22 · 2014 Check connectivity on iOS  Reachability internetReach = [[Reachability reachabilityForInternetConnection] retain]; [internetReach startNotifier]; if([internetReach currentReachabilityStatus] == ReachableViaWWAN) { // Tenemos conexión a Internet } wifiReach = [[Reachability reachabilityForLocalWiFi] retain]; [wifiReach startNotifier]; if([wifiReach currentReachabilityStatus] == ReachableViaWiFi) { // Estamos conectados mediante Wi-Fi } 

MADRID · NOV 21-22 · 2014 APP PUBLISHING 

MADRID · NOV 21-22 · 2014 Android iOS Google requires a one time fee of US$25 iOS Developer Program $99 /year Greater capacity for monetization Google play + Publish in other stores like Amazon,Opera AppStore Alpha/beta testing before put in production Upload to store in 30 min Review process 5-7 days Android Developer Console Beta Testing http://ibetatest.com/ http://testflightapp.com/ 

MADRID · NOV 21-22 · 2014  Distribution 

MADRID · NOV 21-22 · 2014 Developers Library 

MADRID · NOV 21-22 · 2014 Async connections  iOS  Thread managed by NSURLConnection  Android  Services, AsyncTask  Libraries for Android  Otto Event Bus,RoboSpice  http://square.github.io/otto/ 

MADRID · NOV 21-22 · 2014 https://play.google.com/store/apps/details?id=com.desarrollodroide.repos  Android libraries with demos in GP 

MADRID · NOV 21-22 · 2014 https://developer.apple.com/library/ios/navigation/  iOS Developer library 

MADRID · NOV 21-22 · 2014  Classes comparative iOS Android Base UIApplication Application Controller UIViewController Activity/Fragment Event Emitter Target Action/Responder Chain Event Listener i.e. onClick() Data Saving NSUserDefaults / SQLite SharedPreferences / SQLite Multi Thread NSThread Thread/AsyncTask/Service Internationalization NSLocalizedString Resource files GPS CoreLocation LocationManager for MapView, use Google SDK Accelerometer UIAccelerometer SensorManager Local Notification UILocalNotification NotificationManager Remote Push Notification Apple Push Notifiation Service C2DM (external package) com.google.android.c2dm 

MADRID · NOV 21-22 · 2014 BOOKS 

MADRID · NOV 21-22 · 2014 

MADRID · NOV 21-22 · 2014 References o www.developer.android.com o http://www.google.com/design/spec/material-design/ introduction.html o http://tools.android.com/ o https://android-arsenal.com/ o http://android-developers.blogspot.com.es/ o www.developer.apple.com o https://developer.apple.com/videos/wwdc/ o https://developer.apple.com/library/ios/referencelibrary/Getting Started/RoadMapiOS/ 

MADRID · NOV 21-22 · 2014 Thanks Questions?