Android and Location June 18, 2009 – Open Source Bridge Don Park

Don Park @donpdonp

Don Park

Don Park

Don Park

Overview The Android Market Development/Location API Apps and Games Opportunities

The Android Market

Past 6 months of Smartphone Sales T-Mobile sold 1 million G1 phones from Oct 2008 to May 2009[1]. This is the entire installed base for the G1. AT&T sold 4 million iPhones in the same time frame. 17 million installed base. [1] http://www.deutschetelekom.com/dtag/cms/content/dt/en/654792

T-Mobile sold 1 million G1 phones from Oct 2008 to May 2009[1]. This is the entire installed base for the G1.

AT&T sold 4 million iPhones in the same time frame. 17 million installed base.

AdMob Mobile Browser Traffic "We found that Android traffic in the US grew an average of 47% per month since it launched five months ago while iPhone traffic in the US grew an average of 88% per month in the five months following the launch of their App Store."

Android Market Total apps in the market: 3953 http://androidstats.com/home/categories Applications Communications (214) Entertainment (765) Finance (115) Lifestyle (313) Multimedia (181) News & Weather (101) Productivity (216) Reference (185) Shopping (63) Social (105) Tools (785) Travel (138) Demo (61) Software Libraries (16) total: 3258 Games Arcade & Action (180) Brain & Puzzle (307) Cards & Casino (63) Casual (145) total: 695

Total apps in the market: 3953

What Sells? Top Free vs Paid Top 10 Apps (excluding games) http://androidstats.com/ 1. The Weather Channel 2. MySpace Mobile 3. Backgrounds 4. ShopSavvy 5. US Yellow Pages Search 6. DailyHoroscope 7. NBA Game Time 8. T-Mobile My Account 9. Free Dictionary Org 10. fBook - Facebook for Android 197. Power Manager Full $0.99 238. Open Home - Full $3.99 332. MyBackup Pro $2.99 361. aHome $4.99 422. dxTop : Home Alternative $3.99 470. Hello IM! $9.99 486. Snap Photo Pro $0.99 631. BetterCut $2.99 633. Lock 2.0 - Donate $1.49 654. Caller ID by WhitePages $6.99

Top 10 Apps (excluding games)

Top Games Free vs Paid Top 10 Games http://androidstats.com/ 1. PAC-MAN by Namco 2. Solitaire 3. Labyrinth Lite 4. Sudoku 5. BreakTheBlocks Lite 6. Snake 7. Slide Puzzle 8. Tic Tac Toe 9. Smart Tac Toe 10. PapiJump 109. Doom for Android $2.99 129. Baseball Superstars 2009 $5.95 203. Jewellust $2.95 219. Retro Defense $4.99 220. Aevum Obscurum $4.99 224. Tangram Pro $0.99 234. WordWrench Full $0.99 237. Battle for Mars $4.99 272. Air Hockey £0.70 289. Spira Defence Pro £1.59

Top 10 Games

Top Paid Apps March 2009 SnapPhoto pro (about #140) $0.99, 1,000-5,000 download count category $1000-$5000 Hello IM! AOL/AIM (about #200) $9.99 1,000-5,000 download count category $10,000-$50,000 dxTop Home Screen replacement (about #300) $3.99. 1,000-5,000 download category $4000-$20,000 Power Manager (about #400) $0.99. 500-1,000 download category $500-$1000

What is my IP Sales What is my IP Free Launched on Jan 28 2009 100-200 dls/day Show my IP $0.99 Launched on Feb 20 2009 0.5 sales/day

Launched on Jan 28 2009

100-200 dls/day

Launched on Feb 20 2009

0.5 sales/day

Android Operating System Activities Intents Services ContentProvider

Activities

Intents

Services

ContentProvider

Application Composition An Application is made up of activities List Selection Camera Operation Flickr upload

public class Radar extends MapActivity implements ServiceConnection, Constants { public void onCreate(Bundle savedInstanceState) { setTitle(getString(R.string.app_name) + " v" + ICECONDOR_VERSION); Location fix = pigeon.getLastFix(); Log.i(appTag, "pigeon says last fix is " + fix); mapController.animateTo(new GeoPoint((int) (fix.getLatitude() * 1000000), (int) (fix.getLongitude() * 1000000))); } }

Activity Lifecycle

Service/Activity Background Less likely to be paused Foreground

Background

Less likely to be paused

Foreground

public class Pigeon extends Service implements Constants, LocationListener, SharedPreferences.OnSharedPreferenceChangeListener { LocationManager locationManager; public void onCreate() { locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); last_local_fix = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); } }

Intents Apps can be mashups of pieces of existing applications. Not used much yet. Camera Activity

Apps can be mashups of pieces of existing applications.

Not used much yet.

Camera Activity

Intent i = new Intent(); i.setAction(VIEW_ACTION); i.setData(new ContentURI(“http://icecondor.com”)); startActivity(i); <intent-filter . . . > <data android:type=&quot;video/mpeg&quot; android:scheme=&quot;http&quot; . . . /> <data android:type=&quot;audio/mpeg&quot; android:scheme=&quot;http&quot; . . . /> . . . </intent-filter>

Content Provider Described by a RESTful URL content://com.example.codelab.transporationprovider query() insert() update() delete()

Location API

Location Manager Abstract/hands off model Last known location Request updates at a given frequency GPS basics unavailable – is there a lock/signal? (until cupcake)

Abstract/hands off model

Last known location

Request updates at a given frequency

GPS basics unavailable – is there a lock/signal? (until cupcake)

Timeline 8:00:00 set GPS reporting frequency to 2 minutes 8:01:30 GPS powered on by android 8:02:15 GPS FIX accuracy 1200m 8:02:18 GPS FIX accuracy 700m 8:02:21 GPS FIX accuracy 300m 8:02:21 GPS FIX accuracy 100m 8:02:22 GPS FIX accuracy 80m 8:02:23 GPS FIX accuracy 95m 8:02:40 GPS FIX accuracy 82m

Location manager update frequency set to: Every 3 minutes = 10 hours of run time Every 10 minutes = 12 hours of run time Turned off = 24 hours of run time GPS drains the battery

Cupcake Location Changes Android 1.5 Location Manager GpsStatus.getSattelites() GpsStatus.Listener.onGpsStatusChange()

Apps and Games

IceCondor

IceCondor Continuous location tracking http://icecondor.com Write side GPS location OAUTH push to server long-term server-side storage Read side GeoRSS shizzow, upcoming.org feed management

Continuous location tracking

GPS location

OAUTH push to server

long-term server-side storage

GeoRSS

shizzow, upcoming.org

feed management

Radar

IceCondor Sales http://icecondor.com IceCondor Lite Launched on Feb 22 2009 First download Feb 23 IceCondor full Launched on Feb 20 2009 First sale Feb 22

Launched on Feb 22 2009

First download Feb 23

Launched on Feb 20 2009

First sale Feb 22

ZombieRun Augmented Reality

Augmented Reality

Parallel Kingdom

Opportunities

There are now over 1,900 location apps at the iPhone store , says Skyhook Wireless . It’s about a 25 / 75 split between free and paid apps.

Build an open wifi/lat-long database Wigle.net Android 1.5 wifi scan-only mode OpenStreetMap Activity

Wigle.net

Android 1.5 wifi scan-only mode

Google Latitude Con Appears not to use GPS (battery) Unknown update frequency No location history Pro Support for every smartphone OS Google-scale implementation

Appears not to use GPS (battery)

Unknown update frequency

No location history

Support for every smartphone OS

Google-scale implementation

Latitude API http://www.google.com/latitude/apps/badge/api?user=5189588060747846772&type=json { &quot;type&quot;: &quot;FeatureCollection&quot;, &quot;features&quot;: [ { &quot;type&quot;: &quot;Feature&quot;, &quot;geometry&quot;: {&quot;type&quot;: &quot;Point&quot;, &quot;coordinates&quot;: [-118.44967, 33.988717]}, &quot;properties&quot;: { &quot;id&quot;: &quot;5189588060747846772&quot;, &quot;accuracyInMeters&quot;: 1888, &quot;timeStamp&quot;: 1244864014, &quot;reverseGeocode&quot;: &quot;Los Angeles, CA, USA&quot;, &quot;photoUrl&quot;: &quot;http://www.google.com/latitude/apps/badge/api?type=photo&photo=FnLJ1yEBAAA.uZB0qF11JdzXqsnWsulMJQ.K28fiRafHVJpP8N9U2nhDQ&quot;, &quot;photoWidth&quot;: 96, &quot;photoHeight&quot;: 96, &quot;placardUrl&quot;: &quot;http://www.google.com/latitude/apps/badge/api?type=photo_placard&photo=FnLJ1yEBAAA.uZB0qF11JdzXqsnWsulMJQ.K28fiRafHVJpP8N9U2nhDQ&moving=false&stale=false&lod=1&format=png&quot;, &quot;placardWidth&quot;: 56, &quot;placardHeight&quot;: 59 } } ] }

The Google Maps Data API The data model is based on maps and features API and PHP Library Google-scale storage and retrieval http://googlegeodevelopers.blogspot.com/2009/05/introducing-google-maps-data-api-in.html

Conclusion Android is well suited for continuous location apps. The Android Market has 4,000 apps for 1,000,000 phones. Google has done a lot of the work in acquiring and storing location. Location apps are fun!