Open intents Aggregating Apps

Historify and Other Aggregating Apps Friedger Müffke @fmdroid #openintentswww.openintents.org support@openintents.org Droidcon London 2011, 7 October 2011

OpenIntents.org● Add „book a table“ to calendar 50 lines of code● Add „journey schedule“ to shopping list app 5 lines of code● Add „AR browser“ to post office app 1 library + 25 lines of code@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Open Apps1.Declare intent filters in your Manifest with CATEGORY_DEFAULT2.Publish your intent filters on open-android-apps.appspot.com3.Explore intents and which apps do offer the corresponding functionality@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Study● Analysize of apps in application store Appoke● ~1500 apps (paid + free)● 350 apps declare intent filter other than launcher● Many wired and wrong intent filter● 1% of apps declare useful intent filter Looking for more apps stores to participate!@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Google Summer of Code 2011● Global program by Google● Student stipends for OSS projects● 175 organizations, first year for OpenIntents● 57 applications received● 2 students● Accepted projects: Sensor Simulator, Historify@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Historify@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Possible Methods● Server-side e.g. Google Reader● Broadcast intents e.g. Locale● One content provider for all Intent.ACTION_INSERT_FROM_META_DATA e.g. OI Shopping List● Many content providers with same structure e.g. Historify, Dependency Manager, Search@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Historify – SharedSource● Many content providers● 3rd party app registers via intent1. Declare source, i.e. content provider authority2. All declared sources are querried3. Results are filtered and displayed@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Historify – QuickPost● One content provider for all● No content provider by 3rd-party app1. declares event meta data2. uses intents to insert event@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Historify – SharedSource● Many content providers● 3rd party app registers via intent1. Declare source, i.e. content provider authority2. All declared sources are querried3. Results are filtered and displayed@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Historify – more features● Internal providers for SMS and telephony● Documentations on code.google.com/p/openintents● SonyEricsson Timescape Compatibility Module● HistorifyBridge library@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Tips and Tricks● Choose appropriate method● Let 3rd parties declare intent filter● Declare meta data in Android Manifest.xml on application level● AggregateCursor to dynamically add results (see DependencyManager)@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

More info Web site: www.openintents.org Developer group: http://groups.google.com/group/openintents Code repository: http://openintents.googlecode.com@fmdroid – Historify and Aggregating Apps Droidcon London, 7 October 2011

Open intents Aggregating Apps

by Friedger Müffke

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