Android developmenttools 20100424

Android Development Tools Debugging / Profiling Joachim Pfeiffer joachim.pfeiffer at gmail dot com San Francisco Android User’s Group 27 April 2010

Presentation Topics
Resources
Android Debug Bridge (adb)
sqlite3
Dalvik Debug Monitor Service (ddms)
Traceview
Emulator (focus on dev tools)
Discussion

Resources
Google Android Developer Guide http:// developer.android.com/guide/developing/tools/index.html
Google I/O 2009 session videos Mattson: http://code.google.com/events/io/2009/sessions/DebuggingArtsNinjaMasters.html Guy: http://code.google.com/events/io/2009/sessions/TurboChargeUiAndroidFast.html

Android Developer Bridge (adb)
Launch from CLI, e.g. Cygwin
Install / uninstall apps $adb install , adb uninstall
Push / pull files $ adb push , adb pull
Pull logs $ adb logcat
Attach jdb $ adb jdwp:<process>
Start remote shell $ adb shell Run shell commands. Use at own risk

sqlite3
Access through adb remote shell
Run SQL commands on SQLite databases
Similar to MySQL or Oracle SQL*Plus
Example:

Screen capture
Thread and heap information
Logcat
System info
Call and location data spoofing
Launch Traceview from ddms

Threads of a selected process

Heap of a selected process

Logcat with save-to-file

System info

Call and location data spoofing -> Run simulations for emulator

Traceview
Launch from ddms

Traceview
Record method invocations over a selected time period. For each method: - Percentage of time used - Number of calls - Average time / call
Drill down: - Show parent callers - Show children called - Magnify time scale

Traceview

Traceview
Insert expensive code, in drawStop():

Traceview

Emulator (focus on dev tools)
Emulator development tools are provided in a separate app, DevTools
Variety of functions, such as show processes, CPU utilization on screen (you’re probably better off using ddms)
Most useful component: Show screen updates

The End
Discussion…

Android developmenttools 20100424

by Marakana Inc. on Apr 28, 2010

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Android developmenttools 20100424 — Presentation Transcript