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Android performance

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Prajyot Mainkar
Prajyot Mainkar

Looking to improve app performance? Check out this deck that will help to get more of the app's performance and improving resources of the android app. Some of these tips will help you to build android app for performance.

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May the “Performance” be with you DAIICT - June 2016
Android performance
source: app annie Top Apps on Google Play, United States, Applications
source: android Android Distribution (June 2016)
Power Consumption
Battery Life is very important to the consumers Battery Life WiFi Speed/Quality Touch Screen Screen/Display Size Display Type/ Quality Connectivity Memory Display Resolution 0 10 20 30 40 50 60 70 80 90 100 38% 42% 44% 46% 46% 48% 52% 72% Source: Qualcomm Band Tracker, Market Search Group, US
..but it is a Developer’s concern Power is a part of User Experience Power is important to the Mobile users “Bad” ratings / Uninstall is the only escape
Compromising For Benefits 20-30% Core Functions 70% - Ads, GPS, Analytics
…You need to balance 20-30% Core Functions 70% - Ads, GPS, Analytics Reducing Battery Drain
Just the right moment (no sleep?) Uploading of Files/Songs Cropping of Images Unwanted loading Wakeloack Alarm manager Job scheduler
Thank you “network” request if Polling for network requests Response Packets Device being awake
But you can check the stats Wakelock Time Network Time
Wakelock:
Wakelock..really? Issue/Issues batch? Job Scheduler
Moment you first write your GPS Code
GPS: God of Battery Drain Do you really need GPS? Approximation? Ask UserCarry On WTH? YesNo YesNo
Tips for Optimize network power Prefetch data Batch transfer and connections Detect network state Avoid polling Use caching Varying download pattern Monitor charge level and state Monitor and determine docking state Programmatic control over features Use the DDMS Network Traffic Tool
Prefetch Data A way to avoid number of independent data transfer sessions Allows user to download all the data in a given period in a single burst & connection, at full capacity Reduces radio activations and bandwidth, improves battery life and latency e.g Music Player, News reader
Batch transfer and connections Bundle your data transfers and create a pending transfer queue Transfer as much data as possible during each transfer session to limit the number of sessions you require
Detect Network State WiFi will be fast and Cheap - give priority Are you on Roaming? Avoid connections if NO Network is available. Manipulate Broadcast receivers on demand
Using GCM instead of Polling New News? No New News? No New News? No New News available OK
Use Caching to avoid redundant download
Varying Download Pattern Modify the pattern based on connection type Download more data per session on faster networks ..but involve user in this scene Force a quicker pre-fetch
Monitor charge level and state Maximise app updates and its frequency when battery is charging Avoid updates when charge state is discharging
Monitor and Determine Docking State Dock-State is typically linked to the charging stage Opt to update the frequency of update when charged with desktop dock than car dock Dock Types Car Desk Low-End (Analog) Desk High-End (Digital) Desk
Programmatic Control over Features Darker Color, Lesser Consumption Brightness Level have more impact An expensive component if used in an app Avoid fine-point location, unless really necessary
Sync smartly
Tips for using App’s Data Using Services Sparingly ( use IntentService) Release memory when User switch apps( onTrimMemory() ) Release memory as memory becomes tight Avoid OutofMemory Avoid wasting memory with bitmaps Be aware of memory overhead Avoid dependency injection frameworks Be careful about using external libraries Optimize overall performance Use ProGuard to strip out any unneeded code Use ZipAlign ( avoids high RAM usage) Analyze your RAM usage Use Multiple Processes ( e.g music player)
@prajyotm +prajyotmainkar Thank You!
ANDROCID MEDIA PVT. LTD. PRAJYOT MAINKAR prajyotm@androcid.com +91 98229 87513 CONTACT DETAILS http://www.androcid.com

More Related Content

Android performance

  • 1. May the “Performance” be with you DAIICT - June 2016
  • 3. source: app annie Top Apps on Google Play, United States, Applications
  • 6. Battery Life is very important to the consumers Battery Life WiFi Speed/Quality Touch Screen Screen/Display Size Display Type/ Quality Connectivity Memory Display Resolution 0 10 20 30 40 50 60 70 80 90 100 38% 42% 44% 46% 46% 48% 52% 72% Source: Qualcomm Band Tracker, Market Search Group, US
  • 7. ..but it is a Developer’s concern Power is a part of User Experience Power is important to the Mobile users “Bad” ratings / Uninstall is the only escape
  • 8. Compromising For Benefits 20-30% Core Functions 70% - Ads, GPS, Analytics
  • 9. …You need to balance 20-30% Core Functions 70% - Ads, GPS, Analytics Reducing Battery Drain
  • 10. Just the right moment (no sleep?) Uploading of Files/Songs Cropping of Images Unwanted loading Wakeloack Alarm manager Job scheduler
  • 11. Thank you “network” request if Polling for network requests Response Packets Device being awake
  • 12. But you can check the stats Wakelock Time Network Time
  • 15. Moment you first write your GPS Code
  • 16. GPS: God of Battery Drain Do you really need GPS? Approximation? Ask UserCarry On WTH? YesNo YesNo
  • 17. Tips for Optimize network power Prefetch data Batch transfer and connections Detect network state Avoid polling Use caching Varying download pattern Monitor charge level and state Monitor and determine docking state Programmatic control over features Use the DDMS Network Traffic Tool
  • 18. Prefetch Data A way to avoid number of independent data transfer sessions Allows user to download all the data in a given period in a single burst & connection, at full capacity Reduces radio activations and bandwidth, improves battery life and latency e.g Music Player, News reader
  • 19. Batch transfer and connections Bundle your data transfers and create a pending transfer queue Transfer as much data as possible during each transfer session to limit the number of sessions you require
  • 20. Detect Network State WiFi will be fast and Cheap - give priority Are you on Roaming? Avoid connections if NO Network is available. Manipulate Broadcast receivers on demand
  • 21. Using GCM instead of Polling New News? No New News? No New News? No New News available OK
  • 22. Use Caching to avoid redundant download
  • 23. Varying Download Pattern Modify the pattern based on connection type Download more data per session on faster networks ..but involve user in this scene Force a quicker pre-fetch
  • 24. Monitor charge level and state Maximise app updates and its frequency when battery is charging Avoid updates when charge state is discharging
  • 25. Monitor and Determine Docking State Dock-State is typically linked to the charging stage Opt to update the frequency of update when charged with desktop dock than car dock Dock Types Car Desk Low-End (Analog) Desk High-End (Digital) Desk
  • 26. Programmatic Control over Features Darker Color, Lesser Consumption Brightness Level have more impact An expensive component if used in an app Avoid fine-point location, unless really necessary
  • 28. Tips for using App’s Data Using Services Sparingly ( use IntentService) Release memory when User switch apps( onTrimMemory() ) Release memory as memory becomes tight Avoid OutofMemory Avoid wasting memory with bitmaps Be aware of memory overhead Avoid dependency injection frameworks Be careful about using external libraries Optimize overall performance Use ProGuard to strip out any unneeded code Use ZipAlign ( avoids high RAM usage) Analyze your RAM usage Use Multiple Processes ( e.g music player)
  • 30. ANDROCID MEDIA PVT. LTD. PRAJYOT MAINKAR prajyotm@androcid.com +91 98229 87513 CONTACT DETAILS http://www.androcid.com