Android tips

On Ice Cream Sandwich (4.0) or above, press the Volume Down and Power buttons at the same time and hold them for a second.

• Download ADT Bundle from http://dl.google.com/android/adt/adt-bundle-linux-x86.zip
• Install ADT Bundle

$ mkdir ~/projects/android
$ cd ~/projects/android/
$ cp ~/Downloads/Android/adt-bundle-linux-x86.zip ./
$ unzip adt-bundle-linux-x86.zip

• Install JDK (copy jre directory) into ./eclipse subdirectory
• Install necessary packages for building project from command line

$ sudo apt-get install ant
$ sudo sudo apt-get install default-jdk

• Make sure binaries are accessible

$ echo $PATH
/home/dambi/bin:...
$ ls -l /home/dambi/bin/android
lrwxrwxrwx 1 dambi dambi 58 Dec 24 09:36 /home/dambi/bin/android -> ../projects/android/adt-bundle-linux-x86/sdk/tools/android
$ ls -l /home/dambi/bin/adb
lrwxrwxrwx 1 dambi dambi 63 Dec  5 16:57 /home/dambi/bin/adb -> ../projects/android/adt-bundle-linux-x86/sdk/platform-tools/adb
$

• Create project

$ android create project --target 1 --path ~/projects/CarMon/sw/app/android/ObdLogger --activity ObdLogger --package cz.tio.android.obdlogger

• Build debug version and install it into device

$ ant debug install

• display whole log

$ adb logcat

• filter out irrelevant messages

$ adb logcat -s ObdLogger:*

Logging feature is disabled by default on that device.

$ adb logcat
Unable to open log device '/dev/log/main': No such file or directory
$

Though logging can be enabled from hidden service menu.

• Activate hidden menu by dialing *#*#2846579#*#*
• Enable logging: ProjectMenu → Background setting → Log setting → Log switch → LOG on
• Set desired log level: ProjectMenu → Background setting → Log setting → Log level setting
• Reboot device