ochim/SharedPreferences-tips.md

Last active August 10, 2018 10:58

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[Android] SharedPreferencesで複数キーを消す

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SharedPreferences-tips.md

private void removeBadKeys() {
    SharedPreferences preferences = getSharedPreferences("hogehoge", 0);
    SharedPreferences.Editor editor = preferences.edit();

    for (String key : preferences.getAll().keySet()) {
        // xxxで始まるキー
        if (key.startsWith("xxx")) {
            editor.remove(key);
        }
    }

    editor.commit();
}

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