Log.e("log_change","发送通知"); } //当读取设备时会回调该函数 @Override public void onCharacteristicRead...(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) { super.onCharacteristicRead...characteristic就是你保存的BluetoothGattCharacteristic对象,如mBluetoothGatt.readCharacteristic(getCharacteristic);然后就会回调上面的onCharacteristicRead
低功耗蓝牙开发(数据交互) 前言 正文 一、BluetoothGattCallback 1. onPhyUpdate 2. onPhyRead 3. onServicesDiscovered 4. onCharacteristicRead...4. onCharacteristicRead /** * 特性读取回调 * * @param gatt gatt * @param characteristic...特性 * @param status gatt状态 */ @Override public void onCharacteristicRead(BluetoothGatt...gatt, BluetoothGattCharacteristic characteristic, int status) { super.onCharacteristicRead(gatt...然后会触发onCharacteristicRead回调,在这个回调中打印一下特性的uuid。
BluetoothGatt.GATT_SUCCESS){ setBleNotification(); } } 4、读数据的回调函数;onCharacteristicChanged 蓝牙收到数据的回调方法,网上有说是onCharacteristicRead...} } gatt.requestMtu(200); } @Override public void onCharacteristicRead
Log.e(TAG, "onDescriptorRead status: " + status); } @Override public void onCharacteristicRead...BluetoothGattCharacteristic characteristic, int status) { Log.e(TAG, "onCharacteristicRead
} @Override // Result of a characteristic read operation public void onCharacteristicRead
② 实操 当特性拥有Read的属性时,我们就可以读取特性的value,在的BleCore的BleGattCallback中,重写onCharacteristicRead()函数,代码如下所示:.../** * 读取特性回调 Android 13及以上使用 */ override fun onCharacteristicRead(gatt: BluetoothGatt...* 读取特性回调 Android 12及以下使用 */ @Deprecated("Deprecated in Java") override fun onCharacteristicRead
返回0时代表操作成功,返回其他值就是各种异常 //成功获取服务时触发此回调,“获取服务,特征”一节会介绍 } @Override public void onCharacteristicRead...读特征 //读特征 mBluetoothGatt.readCharacteristic(mCharacteristic); //读特征的回调 @Override public void onCharacteristicRead
; } else { Log.w(TAG, "onServicesDiscovered received: " + status); } } @Override public void onCharacteristicRead
主机主动读数据调用readCharacteristic方法,读之后会触发 onCharacteristicRead方法 主机主动写数据调用writeCharacteristic方法,写之后会触发 onCharacteristicWrite
BluetoothGatt. readCharacteristic(BluetoothGattCharacteristic characteristic)-->异步调用BluetoothGattCallback.onCharacteristicRead
(2) readCharacteristic对应onCharacteristicRead; gatt.readCharacteristic(characteristic); (3) writeCharacteristic
读特征值:使用BluetoothGatt对象的readCharacteristic (BluetoothGattCharacteristic characteristic),该操作同样是异步的,在方法onCharacteristicRead
received: " + status); } } @Override // 读写特性 public void onCharacteristicRead
" + status); } } @Override // 特性读取操作返回的数据 public void onCharacteristicRead
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