package am.dev.crap;

import java.util.ArrayList;

import android.content.Context;
import android.content.SharedPreferences;

public class ArrayHelper {

    private static final String PREFERENCENAME = "array_save";

    public static String[] readArray(String key, Context ctx) {
        ArrayList<String> mList = new ArrayList<String>();

        int counter = 0;
        String tmp;
        while (true) {
            SharedPreferences mPrefs = ctx.getSharedPreferences(PREFERENCENAME,
                    Context.MODE_PRIVATE);
            tmp = mPrefs.getString(key + counter, "error");
            counter++;
            if (tmp.equals("error")) {
                break;
            } else {
                mList.add(tmp);
            }
        }
        return (String[]) mList.toArray();
    }

    // Array speichern
    public static void saveArray(String[] values, String key, Context ctx) {
        SharedPreferences mPrefs = ctx.getSharedPreferences(PREFERENCENAME,
                Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = mPrefs.edit();
        // Alle alten Werte löschen:
        editor.clear();

        // Neue Werte speichern:
        for (int i = 0; i < values.length; i++) {
            editor.putString(key + i, values[i]);
        }
    }
}