How do I set the default properties in an AOSP build?

android android-source
Veaceslav Gaidarji picture Veaceslav Gaidarji · May 27, 2013 · Viewed 19.5k times · Source

Where can I change the default Android device properties in my custom AOSP build?

For example:

  • GPS - ON;
  • Sync - ON;
  • Brightness - AUTO;
  • Bluetooth - OFF;
  • WiFi - OFF;
  • Sound - default sound;
  • Vibrate when ring - OFF;

These settings should be defined in the build so they are already in their correct state once build is loaded.

Is there a centralized file/folder for all the settings? Or a Settings application that gathers by itself settings from all Android platform modules?

Answer

skoperst picture skoperst · Aug 4, 2013

There are two main places I usually check for defaults:

/frameworks/base/packages/SettingsProvider/res/values/defaults.xml

and:

/frameworks/base/core/res/res/values/config.xml

Its also worth checking the device directory for overlays which just override the original files:

/device/<company-name>/<product-name>/overlay/frameworks/base/core/res/res/values/config.xml

Default wallpaper usually hardcoded to:

/frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.jpg

Default volume levels for various streams(int[] DEFAULT_STREAM_VOLUME):

/frameworks/base/media/java/android/media/AudioSystem.java

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