[android-developers] Re: Sharing SharedPreferences from two different processes

Michael,

Sorry but I don't understand your example.  You are specifying MODE_PRIVATE which is what I am doing...

SharedPreferences myMemory = getSharedPreferences("myMemory", MODE_PRIVATE);

Are you saying that if I specify "| 0x4" (don't know what that means) that it will be the same as specifying MODE_MULTI_PROCESS?

btw, I'm targeting 2.33 gingerbread.

Gary

On Monday, May 13, 2013 11:59:32 PM UTC-7, Michael Schollmeyer wrote:

I do something like this:

prefs = context.getSharedPreferences(context.getPackageName() + "_preferences", Context.MODE_PRIVATE | 0x4); // Context.MODE_MULTI_PROCESS

Which also compiles in earlier API levels. The additional flag does no harm in pre-level-11 runtimes. 

Also notice that OnSharedPreferenceChangeListener will not trigger across processes.

On Tuesday, May 14, 2013 1:29:37 AM UTC+2, Gary Blakely wrote:

My app originally had an activity and a service running in the same process. When I first wrote it I specified sharedPreferences with MODE_PRIVATE. The app has grown, and for reasons beyond the scope of this post, I now need to run my service in a different process.

I found I can do this by specifying a name starting with a colon in the android:process statement in my manifest file.

However now my activity and my service are no longer reading the same sharedPreferences. Researching this problem I see many reccommendations to use MODE_MULTI_PROCESS. But I cannot figure out how to spedify it.

SharedPreferences myMemory = getSharedPreferences("myMemory", MODE_MULTI_PROCESS);

This does not work because Eclipse can't find MODE_MULTI_PROCESS like it can find MODE_PRIVATE or MODE_WORLD_READABLE.  I don't know where the ENUM for MODE_MULTI_PROCESS is.

So, how can I specify MODE_MULTI_PROCESS ??

thanks, Gary

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