Android 安卓BLE传感器服务不可用
我正在尝试为Android开发一个BLUEBluetooth(智能)应用程序,使用的是Bluegiga设备。我遵循android sdk示例中给出的BLE演示示例代码 这就是我的盖特CallbackAndroid 安卓BLE传感器服务不可用,android,bluetooth-lowenergy,bluegiga,Android,Bluetooth Lowenergy,Bluegiga,我正在尝试为Android开发一个BLUEBluetooth(智能)应用程序,使用的是Bluegiga设备。我遵循android sdk示例中给出的BLE演示示例代码 这就是我的盖特Callback // Implements callback methods for GATT events that the app cares about. // For example, // connection status has changed, services are discovered,etc
// Implements callback methods for GATT events that the app cares about.
// For example,
// connection status has changed, services are discovered,etc...
private final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
// Called when device has changed connection status and appropriate
// broadcast with device address extra is sent
// It can be either connected or disconnected state
@Override
public void onConnectionStateChange(final BluetoothGatt gatt,
int status, int newState) {
if (status == BluetoothGatt.GATT_SUCCESS) {
// LogUtils.LOGI("BLE_STATUS", "SUCCESS");
Log.i("BLE service", "onConnectionStateChange - status: "
+ status + " - new state: " + newState);
if (gatt.discoverServices())
LogUtils.LOGI("DISCOVER_SERVC", "STARTED");
} else
// LogUtils.LOGI("DISCOVER_SERVC", "NOT_STARTED");
if (newState == BluetoothProfile.STATE_CONNECTED) {
LogUtils.LOGI("BLE_STATUS", "CON");
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
}
Log.i("BLE service", "onConnectionStateChange - status: " + status
+ " - new state: " + newState);
}
// Called when services are discovered on remote device
// If success broadcast with device address extra is sent
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
LogUtils.LOGI("BLE_STATUS", "SUCCESS");
}
Log.i("BLE service", "onServicesDiscovered - status: " + status);
}
// Called when characteristic was read
// Broadcast with characteristic uuid and status is sent
@Override
public void onCharacteristicRead(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic, int status) {
Log.i("BLE service", "onCharacteristicRead - status: " + status
+ " - UUID: " + characteristic.getUuid());
}
// Called when characteristic was written
// Broadcast with characteristic uuid and status is sent
@Override
public void onCharacteristicWrite(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic, int status) {
Log.i("BLE service", "onCharacteristicWrite - status: " + status
+ " - UUID: " + characteristic.getUuid());
}
// Called when remote device rssi was read
// If success broadcast with device address extra is sent
@Override
public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
}
Log.i("BLE service", "onReadRemoteRssi - status: " + status);
}
// Called when descriptor was written
@Override
public void onDescriptorWrite(BluetoothGatt gatt,
BluetoothGattDescriptor descriptor, int status) {
Log.i("BLE service", "onDescriptorWrite - status: " + status
+ " - UUID: " + descriptor.getUuid());
}
// Called when notification has been sent from remote device
// Broadcast with characteristic uuid is sent
@Override
public void onCharacteristicChanged(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic) {
Log.i("BLE service", "onCharacteristicChanged - status: "
+ " - UUID: " + characteristic.getUuid());
}
};
无论我做什么,我都得不到任何服务,也得不到BLE设备的特性
我在连接状态更改中收到的状态代码是133
已尝试解决方法:因为我已经知道该服务UUID我尝试获得该服务
对象,如下所示
BluetoothGattService gattService = gatt.getService(device);
if (gattService == null) {
LogUtils.LOGI("GATT SERVICE", "null :" + gattService);
} else {
LogUtils.LOGI("GATT SERVICE", "not null :" + gattService);
}
但是结果总是返回null
我应该如何获得Gattservices和charectrestics?