CODEWITHSUNDEEP
androidtimezoneruntimeadb
Alex
Alex

Reputation: 480

"adb shell settings put global time_zone" doesn't work programatically in Android

I want to put global time zone programatically in Android. The ADB way is like this:

adb shell settings put global time_zone Europe/Stockholm

When I get the time zone it works fine:

adb shell settings get global time_zone

The problem is when I want to do this in Android Studio:

public void setTimeZone(){

    try {
        Runtime.getRuntime().exec("settings put global time_zone Europe/Stockholm");

    }catch (IOException e) {

        e.printStackTrace();
    }

}

There is no error but the time zone is not set.

Any suggestions please? Thank you.

Upvotes: 0

Views: 3072

Answers (1)

babadaba
babadaba

Reputation: 814

Why are you trying to change it via adb shell? Try this:

AlarmManager am = (AlarmManager) getContext().getSystemService(Context.ALARM_SERVICE);
am.setTimeZone("Europe/Stockholm");

You will need to add this permission to your Androidmanifest.xml

<uses-permission android:name="android.permission.SET_TIME_ZONE"/>

I hope this helps you.

With a rooted phone you can try this:

   try {
        Process su = Runtime.getRuntime().exec("su");
        DataOutputStream outputStream = new DataOutputStream(su.getOutputStream());

        outputStream.writeBytes("settings put global time_zone Europe/Stockholm\n");
        outputStream.flush();

        outputStream.writeBytes("exit\n");
        outputStream.flush();
        su.waitFor();

    } catch (Exception e) {

        e.printStackTrace();
    }

Upvotes: 2

Related Questions