How can I store an integer array in SharedPreferences?

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You can try to do it this way:

  • Put your integers into a string, delimiting every int by a character, for example a comma, and then save them as a string:

    SharedPreferences prefs = getPreferences(MODE_PRIVATE);
int[] list = new int[10];
StringBuilder str = new StringBuilder();
for (int i = 0; i < list.length; i++) {
    str.append(list[i]).append(",");
}
prefs.edit().putString("string", str.toString());

  • Get the string and parse it using StringTokenizer:

    String savedString = prefs.getString("string", "");
StringTokenizer st = new StringTokenizer(savedString, ",");
int[] savedList = new int[10];
for (int i = 0; i < 10; i++) {
    savedList[i] = Integer.parseInt(st.nextToken());
}

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