如何保存视图组件的位置？

Question

I have 10 frameLayouts in LinearLayout. In my app I can move these frames, but if I close it, position of my frames didn't save. And if I open app again I see default position of my frames? How can I save position? Help!! PS In my app I use sharedPreferences.

Answer 1

You can use Shared Preferences to store stuff in memory and restore them at later time: Android docs for SharedPreferences

Example - Storing and restoring an integer called position:

    int position = 0;

    //get the SharedPreferences for "yourContextName", which you need to replace it with you context name
    SharedPreferences pref = getSharedPreferences("yourContextName", Context.MODE_PRIVATE);

      /* --------------- Storing data -------------------- */

     //Get editor for writing data to memory
     SharedPreferences.Editor editor = pref.edit();

    //Add an integer to editor
    editor.putInt("position", position);

    //Must commit or else the data will NOT be stored
    editor.commit();


    /* ---------------- Retrievig data ------------------ */

    //Retrievig an integer from pref with tag "position" (-1 is the default value)
    int retInt = pref.getInt("position", -1);