电量优化之Battery Historian

电量的监测是一件很麻烦的事情，但是这件事在5.0以上手机将会轻松获得，下面就为大家介绍下google官方提供的工具，Battery Historizan。

官方文档见下：http://developer.android.com/tools/performance/batterystats-battery-historian/index.html

在官方文档中，为我们提供了2种方法，我们采用以下这种，因为它可以更加清晰的展示各个App的使用电量情况，网络发包情况，Cpu 使用，屏幕唤醒等等情况。

文档见下：https://github.com/google/battery-historian

If you are new to the Go programming language:
Follow the instructions available at http://golang.org/doc/install for downloading and
installing the Go compilers, tools, and libraries.
Create a workspace directory according to the instructions at http://golang.org/doc/code.html#Organization.

Ensure that 

GOPATH

 and 

GOBIN

 environment
variables are appropriately set and added to your 

$PATH

 environment variable. 

$GOBIN
should be set to $GOPATH/bin

.
For Windows, you may set environment variables through the "Environment Variables" button on the "Advanced" tab of the "System" control panel. Some versions of Windows provide this control panel through the "Advanced System Settings" option inside
the "System" control panel.

For Linux and Mac OS X, you can add the following lines to your ~/.bashrc or ~/.profile files (assuming your workspace is $HOME/work):

export GOPATH=$HOME/work
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOBIN

Next, install Git from https://git-scm.com/downloads if it's not already installed.

Next, make sure Python 2.7 (NOT Python 3!) is installed. See https://python.org/downloads if it isn't,
and ensure that python is added to your 

$PATH

 environment variable.

Next, install Java from http://www.oracle.com/technetwork/java/javase/downloads/index.html.

Next, download the Battery Historian code and its dependencies:

$ go get -d -u github.com/google/battery-historian/...

Finally, run Battery Historian!

$ cd $GOPATH/src/github.com/google/battery-historian

# Compile Javascript files using the Closure compiler
$ go run setup.go

# Run Historian on your machine (make sure $PATH contains $GOBIN)
$ go run cmd/battery-historian/battery-historian.go [--port <default:9999>]

Remember, you must always run battery-historian from inside the 

$GOPATH/src/github.com/google/battery-historian

directory:

cd $GOPATH/src/github.com/google/battery-historian
go run cmd/battery-historian/battery-historian.go [--port <default:9999>]

How
to take a bug report

To take a bug report from your Android device, you will need to enable USB debugging under 

Settings > System > Developer Options

.
On Android 4.2 and higher, the Developer options screen is hidden by default. You can enable this by following the instructions here.

To obtain a bug report from your development device:

$ adb bugreport > bugreport.txt

Start
analyzing!

You are all set now. Run 

historian

 and visit http://localhost:9999 and
upload the 

bugreport.txt

 file to start analyzing.
现在，我对英文说明简要的解释下：

1.首先要去官网下载软件，并安装

2.在你的目录中创建文件夹，如goworkspace，其中该文件夹包含3个子文件夹，src，bin，pkg。

3.配置环境变量 ，我用的是mac电脑。

查看你的go 是否安装成功，在终端输入命令行。go version  ，会看到 

go version go1.6.1 darwin/amd64 

将路径配置到环境变量，输入open -e .bash_profile
，
export GOPATH=/Users/cccc/goworkspace （输入go workspace的路径）
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOBIN

然后关闭编辑，保存source ~/.bash_profile
4.查看你的go 的环境是否配置成功
输入 go env



5. 安装git
6. 安装python ，make
sure Python 2.7 (NOT Python 3!)
输入whereas
python ，查看安装地址
python
version，查看版本。
7.如果以上步骤都成功，恭喜你马上就可以看到了
download
the Battery Historian code and its dependencies:

$ go get -d -u github.com/google/battery-historian/...

8.Finally, run Battery Historian!

$ cd $GOPATH/src/github.com/google/battery-historian

# Compile Javascript files using the Closure compiler
$ go run setup.go

# Run Historian on your machine (make sure $PATH contains $GOBIN)
$ go run cmd/battery-historian/battery-historian.go [--port <default:9999>]

9.
adb shell dumpsys batterystats —reset

10.断开手机，使用App
11.adb
bugreport > bugreport.txt
12.打开 网页http://localhost:9999

13.上传bugreport.txt，然后选择你要查看的App