的Andr​​oid如何阅读BLE属性可读可写呈报关贸总协定特点 [英] Android How to read BLE properties Readable Writable Notifiable GATT Characteristics

问题描述

如何阅读 BluetoothGattCharacteristic 属性，如为特征读，可写或呈报。

解决方案

  / **
     * @返回返回＆LT; B＆GT;真＆LT; / B＆GT;如果属性是可写的
     * /
    公共静态布尔isCharacteristicWriteable（BluetoothGattCharacteristic PCHAR）{
        返回（pChar.getProperties（）及（BluetoothGattCharacteristic.PROPERTY_WRITE | BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE））！= 0;
    }

    / **
     * @返回返回＆LT; B＆GT;真＆LT; / B＆GT;如果属性是可读
     * /
    公共静态布尔isCharacterisitcReadable（BluetoothGattCharacteristic PCHAR）{
        返回（（pChar.getProperties（）及！BluetoothGattCharacteristic.PROPERTY_READ）= 0）;
    }

    / **
     * @返回返回＆LT; B＆GT;真＆LT; / B＆GT;如果属性是支持的通知
     * /
    公共布尔isCharacterisiticNotifiable（BluetoothGattCharacteristic PCHAR）{
        返回（pChar.getProperties（）及BluetoothGattCharacteristic.PROPERTY_NOTIFY）！= 0;
    }
 

How to read BluetoothGattCharacteristic properties like is characteristic Readable, Writable or Notifiable.

解决方案

    /**
     * @return Returns <b>true</b> if property is writable
     */
    public static boolean isCharacteristicWriteable(BluetoothGattCharacteristic pChar) {
        return (pChar.getProperties() & (BluetoothGattCharacteristic.PROPERTY_WRITE | BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE)) != 0;
    }

    /**
     * @return Returns <b>true</b> if property is Readable
     */
    public static boolean isCharacterisitcReadable(BluetoothGattCharacteristic pChar) {
        return ((pChar.getProperties() & BluetoothGattCharacteristic.PROPERTY_READ) != 0);
    }

    /**
     * @return Returns <b>true</b> if property is supports notification
     */
    public boolean isCharacterisiticNotifiable(BluetoothGattCharacteristic pChar) {
        return (pChar.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0;
    }

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