android - 如何在以下代码中定义 SampleGattAttributes？

Question

public final static UUID UUID_HEART_RATE_MEASUREMENT =
                UUID.fromString(SampleGattAttributes.HEART_RATE_MEASUREMENT);

SampleGattAttributes，以红色显示，表示未解析符号。这个怎么定义？

Answer 1

我希望这对你有用。

在下面给出的包中添加 SampleGattAttributes 类并导入类。

import java.util.HashMap;

    public class SampleGattAttributes {
        private static HashMap<String, String> attributes = new HashMap();
        public static String HEART_RATE_MEASUREMENT = "00002a37-0000-1000-8000-00805f9b34fb";
       static {
            // Sample Services.
            attributes.put("0000180d-0000-1000-8000-00805f9b34fb", "Heart Rate Service");
            // Sample Characteristics.
            attributes.put(HEART_RATE_MEASUREMENT, "Heart Rate Measurement");
        }
    }