New features in android m upload
- 1. 1 New Features in Android M
- 2. 2 Agenda • Framework Modification • New Feature List
- 3. 3 Framework Modification 2 9 31 21 36 0 5 10 15 20 25 30 35 40 Removed Services Added Services Existing Service without modification Existing Service with small modification Existing Service with big modification Count of Services Removed Services Added Services Existing Service without modification Existing Service with small modification Existing Service with big modification Modification of services from L to M
- 4. 4 Framework Modification(Cont.) 7 4 10 6 1 7 32 count of services csw display media security storage telephony framework-core Split modified services according to domain
- 5. 5 New Feature List • Runtime Permission • Doze Mode • Standby Mode • Carrier Configuration • RRO • Adoptable Storage • Security • Tool
- 6. 6 Runtime Permission • Support in M • Dangerous permissions can be granted/revoked in runtime. • Other permission will be granted in installation automatically. • Only has to grant permission once per app for each permission group. • No difference for permission enforce
- 7. 7 Doze Mode • “forced idle” when a device is unused for long periods. • Extend battery life by deferring application background CPU and network activity. • Wakes for maintenance and allows apps to complete pending activities periodically. Active Inactive Idle_pen ding Idle_mai ntenance Idle Turn off screen and unplug charge Timeout Timeout Regular out of idle modeExecute the pending events Finish the pending events Charge or turn on screen Charge or turn on screen Sensing Device is moving
- 8. 8 App Standby • Allows the system to determine that an app is idle when the user is not actively. • When Android deems an app idle, the app loses network access and its sync/jobs are deferred until one of the following occurs.
- 9. 9 Carrier Configuration Solution to support different requirement of carriers quickly. CarrierConfigM anager CarrierConfigLoader(system service) AOSP APK/Framework CarrierConfigService(Prebuilt) CarrierConfigService(Installe d by Operator) mConfigFromDefaultApp mConfigFromCarrierApp Bind to service and load default configuration Query the APK who impements getCarrierPrivilegeSta tus and has same certification Use configuration in bundle to isolate feature and ui Com.android.phone com.android.carrierconfig Bind to service and load default configuration apk
- 10. 10 RRO - Dynamic resource overlay
- 11. 11 Adoptable Storage • Adopting an external storage device encrypts and formats the device to behave like internal storage. • Allows users to move both apps and private data of apps between storage devices.
- 12. 12 Security • Fingerprint • GateKeep • KeyMaster
- 13. 13 Tools Javac - > jack + Jill
- 14. 14 Tool (Cont.) Gcc- > Clang clang Nexus 9 clang Nexus 9 real 112m50.341s 99m30.494s user 700m20.836s 629m55.376s sys 82m5.260s 67m46.403s Benchmarking Nexus devices running AOSP master built with gcc 4.9 vs. clang 3.6