The Google Services Framework Identifier (GSF ID) is a unique 16 character hexadecimal number that your device automatically requests from Google as soon as you log to your Google Account for the first time. For a specific device, the GSF ID will change only after a factory reset. To get this information programmatically, you need to do two steps.
A) Add the following to your manifest
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
B) Execute the following code
private static final Uri sUri = Uri.parse("content://com.google.android.gsf.gservices");
public static String getGSFID(Context context) {
try {
Cursor query = context.getContentResolver().query(sUri, null, null, new String[] { "android_id" }, null);
if (query == null) {
return "Not found";
}
if (!query.moveToFirst() || query.getColumnCount() < 2) {
query.close();
return "Not found";
}
final String toHexString = Long.toHexString(Long.parseLong(query.getString(1)));
query.close();
return toHexString.toUpperCase().trim();
} catch (SecurityException e) {
e.printStackTrace();
return null;
} catch (Exception e2) {
e2.printStackTrace();
return null;
}
}
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