AWARE: WiFi

This sensor allows us to handle WiFi conditions and events.

Requirements

iOS 13 or later

Installation

You can integrate this framework into your project via Swift Package Manager (SwiftPM) or CocoaPods.

SwiftPM

1. Open Package Manager Windows

   • Open Xcode -> Select Menu Bar -> File -> App Package Dependencies...

2. Find the package using the manager

   • Select Search Package URL and type git@github.com:awareframework/com.awareframework.ios.sensor.wifi.git

3. Import the package into your target.

4. Turn ON Access WiFi Information capability on the Xcode project

CocoaPods

com.awareframework.ios.sensor.wifi is available through CocoaPods.

1. To install it, simply add the following line to your Podfile:

pod 'com.awareframework.ios.sensor.wifi'

2. Import com.awareframework.ios.sensor.wifi library into your source code.

import com_awareframework_ios_sensor_wifi

3. Turn ON Access WiFi Information capability on the Xcode project

Public functions

WifiSensor

• init(config:WiFiSensor.Config?) : Initializes the WiFi sensor with the optional configuration.
• start(): Starts the WiFi sensor with the optional configuration.
• stop(): Stops the service.

WifiSensor.Config

Class to hold the configuration of the sensor.

Fields

• sensorObserver: WiFiObserver: Callback for live data updates.
• enabled: Boolean Sensor is enabled or not. (default = false)
• debug: Boolean enable/disable logging to Logcat. (default = false)
• label: String Label for the data. (default = "")
• deviceId: String Id of the device that will be associated with the events and the sensor. (default = "")
• dbEncryptionKey Encryption key for the database. (default = null)
• dbType: Engine Which db engine to use for saving data. (default = Engine.DatabaseType.NONE)
• dbPath: String Path of the database. (default = "aware_wifi")
• dbHost: String Host for syncing the database. (default = null)

Broadcasts

• WiFiSensor.ACTION_AWARE_WIFI_CURRENT_AP currently connected to this AP. In the extras, WiFiSensor.EXTRA_DATA includes the WiFiData in json string format.
• WiFiSensor.ACTION_AWARE_WIFI_NEW_DEVICE new WiFi AP device detected. In the extras, WiFiSensor.EXTRA_DATA includes the WiFiData in json string format.
• WiFiSensor.ACTION_AWARE_WIFI_SCAN_STARTED WiFi scan started
• WiFiSensor.ACTION_AWARE_WIFI_SCAN_ENDED WiFi scan ended.

Data Representations

WiFi Scan Data

Field	Type	Description
bssid	String	currently connected access point MAC address
ssid	String	currently connected access point network name
deviceId	String	AWARE device UUID
label	String	Customizable label. Useful for data calibration or traceability
timestamp	Long	Unixtime milliseconds since 1970
timezone	Int	WiFi of the device
os	String	Operating system of the device (ex. android)

Example usage

let wifiSensor = WiFiSensor.init(WifiSensor.Config().apply{config in
    config.sensorObserver = Observer()
    config.dbType = .REALM
    config.debug = true
    // more configuration ...
})
// To start the sensor
wifiSensor.start()

// To stop the sensor
wifiSensor.stop()

// Implement an interface of WifiObserver
class Observer:WiFiObserver {
    func onWiFiAPDetected(data: WiFiScanData) {
        // Your code here ..
    }

    func onWiFiDisabled() {
        // Your code here ..
    }

    func onWiFiScanStarted() {
        // Your code here ..
    }

    func onWiFiScanEnded() {
        // Your code here ..
    }
}

Author

Yuuki Nishiyama (The University of Tokyo), nishiyama@csis.u-tokyo.ac.jp

License

Copyright (c) 2018 AWARE Mobile Context Instrumentation Middleware/Framework (http://www.awareframework.com)

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.