android BLE开发之UUID工具类
16lz
2021-01-23
public class UUIDUtil{ private static final String base_uuid_regex = "0000([0-9a-f][0-9a-f][0-9a-f][0-9a-f])-0000-1000-8000-00805f9b34fb"; public static boolean isBaseUUID(String uuid) { return uuid.toLowerCase().matches("0000([0-9a-f][0-9a-f][0-9a-f][0-9a-f])-0000-1000-8000-00805f9b34fb"); } public static String UUID_128_to_16bit(String uuid, boolean lower_case) { if (uuid.length() == 36) { if (lower_case) { return uuid.substring(4, 8).toLowerCase(); } return uuid.substring(4, 8).toUpperCase(); } return null; } public static String UUID_16bit_128bit(String uuid, boolean lower_case) { if (lower_case) { return ("0000([0-9a-f][0-9a-f][0-9a-f][0-9a-f])-0000-1000-8000-00805f9b34fb".substring(0, 4) + uuid + "0000([0-9a-f][0-9a-f][0-9a-f][0-9a-f])-0000-1000-8000-00805f9b34fb".substring(38)).toLowerCase(); } return ("0000([0-9a-f][0-9a-f][0-9a-f][0-9a-f])-0000-1000-8000-00805f9b34fb".substring(0, 4) + uuid + "0000([0-9a-f][0-9a-f][0-9a-f][0-9a-f])-0000-1000-8000-00805f9b34fb".substring(38)).toUpperCase(); }}
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