Home/ Questions/Q 675265
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-14T00:47:57+00:00

My application is used on multiple platforms so it saves it preferences to a

  • 0

My application is used on multiple platforms so it saves it preferences to a file (rather than to the standard Android SharedPreferences).

Is there any easy of reusing the PreferenceActivity to save preferences to a file or is it a case of creating a whole new activity to do the job? If the latter is the case is there a layout I can use that will make the activity look like the normal preferences screen? PreferenceActivity uses com.android.internal.R.layout.preference_list_content but this doesn’t appear to be available to apps for reuse.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Is there any easy of reusing the
    PreferenceActivity to save preferences
    to a file or is it a case of creating
    a whole new activity to do the job?

    Not really. I mean, you could subclass SharedPreferences, rip the guts out, and map it to your own data model, but that would be far, far worse for maintainability than just using SharedPreferences in the first place.

    If the latter is the case is there a
    layout I can use that will make the
    activity look like the normal
    preferences screen?

    It’s just a ListView. It will take you a lot more time to do this than to just use SharedPreferences.

    PreferenceActivity uses
    com.android.internal.R.layout.preference_list_content
    but this doesn’t appear to be
    available to apps for reuse.

    Sure it is. If you have the SDK installed, it’s on your hard drive right now. Look in $ANDROID_HOME/platforms/$API/data/res/layout, where $ANDROID_HOME is where you have the SDK and $API is some API (e.g., android-2.1).

    • 0