Limit wifi item edit content's max length to 500

        <item name="android:textAppearance">@android:style/TextAppearance.DeviceDefault.Medium</item>

        <item name="android:textColorHint">?android:attr/textColorSecondary</item>

        <item name="android:minHeight">@dimen/min_tap_target_size</item>

        <item name="android:maxLength">500</item>

    </style>

    <style name="wifi_section">