Android Battery usage profiling

Question

Is there any way to profile the battery usage by the application in development environment or real time? BatteryManager seems not providing any per application API

Answer 1

You may want to take a look at Trepn Profiler by Qualcomm. Its features are:

• Profile device, or a single app
• Display battery power
• View CPU and GPU frequency and utilization
• Display network usage (cellular and Wi-Fi)

Answer 2

I don't think that is possible at the moment.

There is a private API, PowerProfile, for retrieving battery consumption on a subsystem level (see http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.2_r1.1/com/android/internal/os/PowerProfile.java). Also take a look at the code for the fuel gauge you find in Android's settings on how they calculate power consumption: http://google.com/codesearch/p?hl=en#ohAXAHj6Njg/src/com/android/settings/fuelgauge/PowerUsageSummary.java

Answer 3

There's a new tool called "little eye" that does this.

It can profile Battery, CPU, Wifi and Data usage for an App in a development environment. Its a commercial product, but in beta right now, so free to download (for the moment). (disclaimer: I work at little eye)

http://www.littleeye.co

Answer 4

you can use the two classes: IBatteryStats and BatteryStatsImplernal in package com.android.internal, they provide methods to get the statistics of battery usage.