要在Android上解决蓝牙低功耗指示问题,您可以按照以下步骤操作:
BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
BluetoothAdapter bluetoothAdapter = bluetoothManager.getAdapter();
if (bluetoothAdapter == null || !bluetoothAdapter.isEnabled() || !getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
// 设备不支持蓝牙低功耗
return;
}
private BluetoothAdapter.LeScanCallback mLeScanCallback = new BluetoothAdapter.LeScanCallback() {
@Override
public void onLeScan(final BluetoothDevice device, int rssi, byte[] scanRecord) {
// 您可以在这里过滤和处理扫描到的设备
}
};
// 开始扫描
bluetoothAdapter.startLeScan(mLeScanCallback);
// 扫描持续时间(例如10秒后停止扫描)
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
bluetoothAdapter.stopLeScan(mLeScanCallback);
}
}, 10000);
private BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
if (newState == BluetoothProfile.STATE_CONNECTED) {
// 连接成功
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
// 连接失败
}
}
};
// 连接到设备
BluetoothDevice device = bluetoothAdapter.getRemoteDevice(deviceAddress);
BluetoothGatt gatt = device.connectGatt(this, false, mGattCallback);
通过这些步骤,您可以在Android上成功连接到和操作BLE设备。请注意,上述示例代码仅提供了基本的框架,您可能需要根据您的具体需求进行适当的修改和扩展。
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