<uses-permissionandroid:name="android.permission.BLUETOOTH_ADMIN"/> <!-- 支持ble的设备 --> <uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/> <!-- 定位权限 --> <uses-permissionandroid:name="android.permission.ACCESS_COARSE_LOCATION"/> <uses-permissionandroid:...
复制 <uses-permission android:name="android.permission.BLUETOOTH"/><uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/><uses-featureandroid:name="android.hardware.bluetooth_le"android:required="true"/><uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/><uses-permis...
從BluetoothLeService內的connectGatt 第三個參數BluetoothGattCallback收到回調函式mGattCallback,mGattCallback內部幾個常用的function,分別為:onConnectionStateChange()、onServicesDiscovered()、onCharacteristicRead()、onCharacteristicChanged()等,其中onConnectionStateChange內可以判斷裝置是否連線。 如果連接上裝置後執行...
(Dispatchers.IO)//Check and request Bluetooth permissions if necessarybluetoothHelper.checkAndRequestBluetoothPermission()//Connect to the PeriPage printerif(!bluetoothHelper.isPrinterConnected()) {if(bluetoothHelper.connectPrinter()) {//Connection successful}else{//Connection failed} }else{//Printer is ...
private fun createService(): BluetoothGattService { val service = BluetoothGattService(discoveryServiceUUID, BluetoothGattService.SERVICE_TYPE_PRIMARY) val characteristic = BluetoothGattCharacteristic(discoveryCharacteristicUUID, BluetoothGattCharacteristic.PROPERTY_READ, BluetoothGattCharacteristic.PERMISSION_READ) se...
BluetoothGattCharacteristic:特征,通过BluetoothGattService实例调用getCharacteristic(UUID)获取,是 GATT 通信中的最小数据单元。 BluetoothGattDescriptor:特征描述符,对特征的额外描述,包括但不仅限于特征的单位,属性等。 声明权限 <uses-permissionandroid:name="android.permission.BLUETOOTH"/><uses-permissionandroid:name...
If your app is using Bluetooth on the device to scan for beacon signals or GPS, make sure to add the appropriate permissions. Add these permissions to your Androidmanifest.xml file. android.permission.BLUETOOTH_ADMIN android.permission.BLUETOOTH android.permission.ACCESS_FINE_LOCATION <!-- Needed ...
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BLUETOOTH_CONNECT & BLUETOOTH_SCAN权限是运行时权限，必须在应用程序运行时请求这些权限。扫描设备之前应...
在您的MainActivity或Very first Activity中，请求蓝牙许可，如下所示。1.在活动中创建权限回调。