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Where 2.0
- 1. Giving Mobile Apps a Sense of Place Dave Johnson Co-founder, Nitobi Software Senior Developer, ForeSee Results
- 2. Overview • IPhone • Android • BlackBerry • PhoneGap
- 3. Setup • IPhone SDK 2.2.1 • Android 1.5 • BlackBerry Eclipse JDE • PhoneGap github.com/sintaxi/phonegap • github.com/davejohnson/Where20Mobile
- 10. 190 million • Smart phones (Gartner) • 1.28 billion phones
- 11. Smartphone Market 4% 1% 6% IPhone 6% RIM Windows Mobile Palm 11% Android Hiptop 50% Symbian 22% Source: AdMob March 2009 metrics
- 12. Geo Features • Heading • Geolocation (GPS, Wifi, Cell) • Geocoding • Mapping
- 13. Issues • Battery, battery, battery • Accuracy • Coverage http://www.flickr.com/photos/paky/50054831/
- 15. IPhone • IPhone OS 2.2.1 • IPhone OS 3.0 CENSORED • Geolocation • Map URI • Simulator
- 16. CoreLocation • Uses the available hardware to triangulate the user’s position based on nearby GPS, cell, or WiFi signal information
- 17. CoreLocation • Add the framework to your project • #import <CoreLocation/CoreLocation.h> • CLLocation • CLLocationManager • CLLocationManagerDelegate (protocol)
- 18. CLLocation • coordinate (CLLocationCoordinate2D) • altitude (in feet x 3.28) • verticalAccuracy • horizontalAccuracy • speed • course (degrees clockwise from north) • getDistanceFrom:(CLLocation *)location
- 19. CLLocationManager • CLLocationManager::distanceFilter • CLLocationManager::desiredAccuracy • best, nearestTenMeters, hundredMeters, kilometer, threeKilometers • Accuracy improves over time as it will return the first location ASAP
- 20. Map URI • Launch applications with special URIs • UIApplication::openURL(NSURL) • http://maps.google.com/maps? q=bar&ll=-33.874559,151.219575
- 21. URL Querystring • q - The query parameter. Could be a KML file. • near - The location part of the query. • ll - Latitude and longitude (decimal format, comma separated) for the map center point. • sll - The latitude and longitude points from which a business search should be performed. • spn - The approximate latitude and longitude span. • sspn - A custom latitude and longitude span format used by Google. • t - The type of map to display. • z - The zoom level. • saddr - The source address, which is used when generating driving directions • daddr - The destination address, which is used when generating driving directions. • latlng - A custom ID format that Google uses for identifying businesses. • cid - A custom ID format that Google uses for identifying businesses.
- 22. Simulator • Good luck • Only GPS location? • 1 Infinite Loop, Cupertino, CA, 95014
- 23. Simulator • Good luck • Only GPS location? • 1 Infinite Loop, Cupertino, CA, 95014
- 24. Summary • Get lat/lng from GPS, Wifi or Cell towers • Launch maps (query, points, directions) • Simulator leaves much to be desired
- 26. Android • Compass • Geolocation • Map Intent • MapView • Geocode
- 27. Compass • SensorManager • SensorEventListener interface • SensorManager::registerListener() • Sensor.TYPE_MAGNETIC_FIELD
- 28. GPS • LocationManager • LocationListener interface
- 29. GPS: LocationManager • addProximityAlert • getBestProvider(Criteria, enabledOnly) • getLastKnownLocation
- 30. GPS: LocationListener • onLocationChanged • onProviderDisabled • onProviderEnabled • onStatusChanged
- 31. Map Intent • “Intents” are how Android apps launch other apps • Supports special GEO URI • geo:38.899533,-77.036476
- 35. Simulator • Great • DDMS Perspective in Eclipse • Simulate single GPS location or provide a KML file
- 36. Summary • Get direction/heading information • Get lat/lng from GPS, Wifi or Cell towers • Launch maps (query, points, directions) • Geocoding lat/lng to/from address • Embed maps through MapView • Simulator very extensive
- 38. RIM • GPS • JavaScript API • Invoke Map
- 39. GPS • LocationProvider • LocationListener interface
- 40. Map Invoke • Invoke.invokeApplication() • Invoke.APP_TYPE_MAPS
- 41. JavaScript API • window.BlackBerry.BlackBerryLocation • latitude • longitude • onLocationUpdate()
- 43. PhoneGap • Write apps with HTML/JS/CSS, access native APIs, deploy to multiple platforms. • Built at IPhoneDevCamp • Web2.0 LaunchPad winner • IPhone, Android, BlackBerry
- 44. • “The purpose of PhoneGap is for PhoneGap to not exist”
- 45. Standards • W3C • http://dev.w3.org/geo/api/spec-source.html • http://www.w3.org/TR/widgets-apis/ • Firefox 3.5 and Fennec • Android WebKit (Gears) • Opera X • Another popular version of WebKit • Internet Explorer Mobile (Gears) • RIM ... ummm forget about it
- 46. Geolocation • navigator.geolocation.watchPosition() • navigator.geolocation.getCurrentPosition()
- 47. Simulator
- 48. Thank You! • dave@nitobi.com • twitter.com/davejohnson • nullisnotanobject.com