Saving and Getting Level Number

Question

I'm developing a level-based app, and I want to be able to save the user's level number (1, 2, 3 etc..) and then when the app starts get the level number and do something with it. How can I do it?

Answer 1

Use SharedPreferences for storing level number:

http://developer.android.com/reference/android/content/SharedPreferences.html

http://android-er.blogspot.ru/2011/01/example-of-using-sharedpreferencesedito.html

Answer 2

If you read up in the documentation here you can see that to save data like a level number, you can use SharedPreferences. First, you'll need a SharedPreferences object, which you can obtain using

SharedPreferences sharedPref = getActivity().getPreferences(Context.MODE_PRIVATE);

Then to save a piece of data, use:

SharedPreferences.Editor editor = sharedPref.edit();
editor.putInt("level", level);
editor.commit();

And finally, to get that level back later, use:

sharedPref.getInt("level", 0);

Good luck!

Answer 3

Use Shared Preferences like so:

Create these methods for use, or just use the content inside of the methods whenever you want:

public int getLevel()
{
   SharedPreferences sp = getSharedPreferences("prefName", 0);
   int level = sp.getInt("levelReference", 1);
   return level;
}

public void setLevel(String level)
{
   SharedPreferences.Editor editor = getSharedPreferences("prefName", 0).edit();
   editor.putInt("levelReference", level);
   editor.commit();
}

The 1 in sp.getInt("levelReference", 1); means that the method will return 1 if the preference is not found, so the default level is 1.

You can call them like this:

int level = getLevel(); // level is now the level that the user is on

setLevel(4); // user is now on level 4