Android1.5~8.0 Walkthrough
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This document provides a walkthrough of Android versions from 1.5 to 8.0. It summarizes the key features introduced in each version, including interface improvements, performance enhancements, and other updates. It also references additional documentation on topics like background optimization, battery life, job scheduling, and more. The overall document aims to help developers understand how Android has evolved and stay up to date on the latest features.
Android1.5~8.0 Walkthrough
- 1. ANDROID 1.5~8.0 WALKTHROUGH Matsumura.Yuki / 松村勇輝 AbemaTV, Inc. - Android Engineer Yuki_312
- 2. Smarter, faster and more powerful than ever. The world's favorite cookie is your new favorite Android release. Introducing Android 8.0 Android Oreo
- 4. Reduce Resource Consumption ‣ Doze and AppStandby ‣ Background limitations (Broadcast, Service, Location)
- 5. Design Principles: Bg. Activity referenced https://developer.android.com/topic/performance/scheduling.html ‣ Reduce all background job ‣ Defer it to when device is on charger ‣ Coalesce it with other background job
- 7. And more…
- 8. CUPCAKE OS1.5, API LV.3 ‣ April 2009 ‣ On screen keyboards ‣ Bluetooth A2DP ‣ AppWidgetProvider, etc.
- 9. DONUT OS1.6, API LV.4 ‣ September 2009 ‣ Screen size diversity ‣ Battery usage indicator ‣ New Android Market UI ‣ Text-to-speech engine, etc.
- 10. ECLAIR OS2.0/2.1, API LV.5~7 ‣ October 2009 ‣ Service API deprecated ‣ Executed on Key-up ‣ Multi-touch, Multi-account ‣ Google account sync, etc.
- 11. 2.0 - E Service ‣ Service.setForeground() deprecated ‣ Add startForeground(), Required Notification icon 8.0 - O ‣ Background service limitations ‣ Add startForegroundService()
- 13. FROYO OS2.2, API LV.8 ‣ May 2010 ‣ Install on external storage ‣ Backup Manager ‣ C2DM ‣ JIT compiler, etc.
- 14. GINGERBREAD OS2.3, API LV.9/10 ‣ December 2010 ‣ Word selection ‣ Power management ‣ Concurrent GC ‣ NFC, etc.
- 15. 2.2 - F Performance ‣ Dalvik + JIT compiler 5.0 - L ‣ ART 2.3 - G ‣ Concurrent GC 7.0 - N ‣ ART + JIT Compiler
- 17. HONEYCOMB OS3.X, API LV.11/12/13 ‣ February 2011 ‣ New UI design for tablets ‣ ActionBar, Fragment, Loader ‣ Hardware acceleration ‣ Holographic UI, etc.
- 18. ICE CREAM SANDWICH OS4.0, API LV.14/15 ‣ October 2011 ‣ Unified UI framework ‣ MENU hardware button, etc.
- 19. JELLY BEAN OS4.1~4.3, API LV.16~18 ‣ June 2012 ‣ Project Butter ‣ Unicode6.0 ‣ Notification styles, GCM, etc. ‣ Google Play Services v1.0
- 20. 4.3 - J Emoji ‣ Unicode6 emoji 6.0 - M ‣ Unicode7 & 8 ‣ ZWJ 5.0 - L ‣ “nonhuman” shape 7.0 - N ‣ Unicode 9 ‣ “Human” shape & Skin tones
- 22. KITKAT OS4.4, API LV.19 ‣ October 2013 ‣ Support 512MB RAM device ‣ Storage Access Framework ‣ Inexact Alarm ‣ Chromium WebView, etc.
- 23. 4.4 - K Alarm ‣ Alarm delivery is inexact ‣ Add setWindow(), setExact() 6.0 - M ‣ Deferred to the next maintenance window ‣ Add setAndAllowWhileIdle(), setExactAndAllowWhileIdle()
- 24. LOLLIPOP OS5.0/5.1, API LV.21/22 ‣ October 2014 ‣ Project Volta ‣ Material Design, Vector drawable ‣ Notification update, Multi-user ‣ WebView update, ART, 64bit etc.
- 25. 4.4 - K WebView ‣ Based on Chromium 7.0 - N ‣ Chrome APK 5.0 - L ‣ Updatable from Google Play 8.0 - O ‣ Multi process mode ‣ Safe Browsing
- 27. MARSHMALLOW OS6.0, API LV.23 ‣ October 2015 ‣ RuntimePermissions ‣ Doze ‣ App Standby ‣ AutoBackup, etc.
- 28. 6.0 - M Doze ‣ Screen off, on battery, stationary 7.0 - N ‣ Doze Lite ‣ Screen off, on battery, NOT stationary
- 30. NOUGAT OS7.0/7.1, API LV.24/25 ‣ August 2016 ‣ Multi-window, Screen zoom ‣ Doze Lite ‣ File security ‣ Project Svelte, Round Icon, etc.
- 31. 4.3 - J App Icon ‣ Mipmap resource 8.0 - O ‣ Adaptive icon 7.1 - N ‣ Round icon
- 32. OREO OS8.0, API LV.26 ‣ August 2017 ‣ Background execution limits ‣ Notification dots, Adaptive icon ‣ XML font ‣ Application overlay, etc.
- 33. Intelligent Job-Scheduling Scheduling this work intelligently can improve your app’s performance, along with aspects of system health such as battery life. referenced https://developer.android.com/topic/performance/scheduling.html
- 34. Be smarter, faster and more powerful than ever. Let's make your app with 8.0 :) Follow the new features Androider
- 35. References Migrating to WebView in Android 4.4: https://developer.android.com/guide/webapps/migrating.html Best Practices for Background Jobs: https://developer.android.com/training/best-background.html ART and Dalvik: https://source.android.com/devices/tech/dalvik/ Getting Your Apps Ready for Nexus 6 and Nexus 9: https://android-developers.googleblog.com/2014/10/getting-your-apps-ready-for-nexus-6-and.html Android Emoji Changelog https://blog.emojipedia.org/android-50-emoji-changelog/ https://blog.emojipedia.org/android-6-0-1-emoji-changelog/ https://blog.emojipedia.org/android-7-0-emoji-changelog/ https://blog.emojipedia.org/android-8-0-emoji-changelog/
- 36. References Background Optimizations: https://developer.android.com/topic/performance/background-optimization.html Stuck Wake Locks: https://developer.android.com/topic/performance/vitals/wakelock.html Excessive Wakeups: https://developer.android.com/topic/performance/vitals/wakeup.html Optimizing for Battery Life: https://developer.android.com/topic/performance/power/index.html Intelligent Job-Scheduling: https://developer.android.com/topic/performance/scheduling.html Scheduling Repeating Alarms: https://developer.android.com/training/scheduling/alarms.html
- 37. References Chrome Custom Tabs: https://developer.chrome.com/multidevice/android/customtabs Android Compatibility Definition Document: https://source.android.com/compatibility/cdd
- 38. Thank You! Matsumura.Yuki / 松村勇輝 AbemaTV, Inc. - Android Engineer Yuki_312