Hi, See also -
http://developer.android.com/reference/android/content/Context.html#MODE_MULTI_PROCESS http://developer.android.com/reference/android/content/Context.html#getSharedPreferences(java.lang.String, int) This flag helps for single process, but I find that it is still NOT multi process safe any longer, where as once upon a time it was. For me this sometimes manifests itself as total loss of previously set shared preferences when using multiple processes. Regards On Thursday, February 20, 2014 6:53:35 AM UTC+11, Mr&Mrs D wrote: > > Is this still the case ? Anyone went through ? There is some confusion on > this floating around: > > > http://stackoverflow.com/questions/4693387/sharedpreferences-and-thread-safety > > On Tuesday, February 24, 2009 5:39:17 AM UTC, rod wrote: >> >> It appears to me that the SharedPreferences implementation is NOT >> thread safe. >> >> The implementations of Context.getSharedPreferences() and Editor.commit >> () do not synchronize on the same monitor. >> >> A call to getSharedPreferences() can return a new empty instance if >> there is a concomitant thread in the process of committing. >> >> In this case the getSharedPreferences() call may see the underlying >> preference file as changed. Should it see the file is changed and >> subsequently load the file from disk while it is unable to read or >> reads an invalid (only partially written file), it will fail silently >> and return a new instance. >> >> I see many posts suggesting that it is thread safe, not multi-process >> safe. But there's no shortage of folk reporting sporadic loss of >> preferences in a multi-threaded application. Perhaps i'm not correctly >> reading the source... Does anyone concur? >> >> Thanks, >> Rod >> > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
