How can I modify the default locale in android?

By default, the andro开发者_开发问答id system's default location is US and language is en. But I want to set the default location to another country. So, the users will see their mother language when the first time startup android.

I have tried to modify the code(/dalvik/libcore/luni/src/main/java/java/util/Locale.java), changed the locale's default value. But no effect.

Can you tell me how to set the default location?

*I want to make an android image, then burn it to the device, when the android starts up the first time, I want its os language is not English but another language.

thanks for all you reply.

i have found the method to change the default language.

just modify the file(build/core/Makefile).

set PRODUCT_DEFAULT_LANGUAGE and PRODUCT_DEFAULT_REGION to what you want to set.

I make customer build via build/target/product/core.mk
Samples:

PRODUCT_PROPERTY_OVERRIDES := \
    ro.config.notification_sound=OnTheHunt.ogg \
    ro.config.alarm_alert=Alarm_Classic.ogg \
    ro.config.ringtone=BirdLoop.ogg \
    persist.sys.language=zh \
    persist.sys.country=CN \
    persist.sys.timezone=Asia/Shanghai

Have you already checked out this part?

 private Locale() {
   languageCode = "en"; //$NON-NLS-1$
   countryCode = "US"; //$NON-NLS-1$
   variantCode = ""; //$NON-NLS-1$
 }

It starts at line 212 in Locale.java. Is this the part where you've set your default values? If so then please post that bit up so I can check it out.

EDIT: Actually if you can post your whole Locale.java up on Pastebin. http://pastebin.com/

The easiest way might be to insert a local SIM before boot. But in my case the timezone wouldn't be set automagically not even then.

For lineage 18, first boot setup, custom build:

Add base locale as top on PRODUCT_LOCALES in build/target/product/full_base.mk like
PRODUCT_LOCALES := de_DE

To set the default timezone via makefiles didn't work for me, but it worked to hardcode it in the SetupWizard. So change line 84 in packages/apps/SetupWizard/src/org/lineageos/setupwizard/DateTimeActivity.java from
mCurrentTimeZone = TimeZone.getDefault();
to: mCurrentTimeZone = TimeZone.getTimeZone("Europe/Amsterdam");

Check first which timezones are at hand by browsing the list!

Use java.util.locale

and use method getISOcounty, getISOLanguage etc...

to know more in detail go through http://developer.android.com/reference/java/util/Locale.html