rxandroidble

问题 I'm currently working on an Android app for a proprietary Bluetooth Low Energy device. I decided to use RxAndroidBle and I'm happy with it's relative ease of use compared to the built-in bluetooth stack. Where I'm running into problems: I need to subscribe to two characteristics and continuously read and aggregate their values. Looking at this example page, http://polidea.github.io/RxAndroidBle/, I have been able to read multiple characteristics as per the example, but have been unsuccessful

问题 Context: I have two devices with me: 1. LG G7 2. Huawei Pra LX1 I am currently using implementation "com.polidea.rxandroidble2:rxandroidble:1.10.0" When I call to Disposable scanSubscription = rxBleClient.scanBleDevices( new ScanSettings.Builder() // .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY) // change if needed // .setCallbackType(ScanSettings.CALLBACK_TYPE_ALL_MATCHES) // change if needed .build() // add filters if needed ) .subscribe( scanResult -> { // Process scan result here. },

问题 I'm currently trying to use rxandroidble in order to replace the native BLE API of Android of one of our app. How to disable a notification? I'm able to enable it with the sample code, this one: device.establishConnection(context, false) .flatMap(rxBleConnection -> rxBleConnection.setupNotification(characteristicUuid)) .doOnNext(notificationObservable -> { // OK }) .flatMap(notificationObservable -> notificationObservable) .subscribe(bytes -> { // OK }); But in my product I have a use case

问题 I'm having issues setting up notifications on multiple characteristics. I've reviewed the documentation and many of the examples only cover very granular situations. My use case is as follows: 1. scan for devices 2. user selects device to connect to (with the connection persisting until the app is closed) 3. subscribe to notifications for many characteristics 4. read/write to either single characteristics at a time, and in some cases read/write to many characteristics at a time 回答1: I got it

问题 Polidea has released a new handy library called RxAndroidBle which is very useful for dealing with a lot of issues when you're using vanilla Bluetooth APIs. Before explaining more the idea is to have a POJO model that has all the recent values that the device send (or I query) to me (in this case is represented by a Map object): If I want to be notified about multiple characteristic notifications I can do this: final UUID serviceUuid = // your service UUID final Map<UUID, byte[]> genericModel

问题 Currently modifying the sample code and I am encountering an error when try to establish a connection and then read a characteristic in one activity. I am getting BleAlreadyConnectedException when attempting to read from the device. I am first connecting on onCreate. @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_device); // How to listen for connection state changes bleDevice.observeConnectionStateChanges()

问题 Currently modifying the sample code and I am encountering an error when try to establish a connection and then read a characteristic in one activity. I am getting BleAlreadyConnectedException when attempting to read from the device. I am first connecting on onCreate. @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_device); // How to listen for connection state changes bleDevice.observeConnectionStateChanges()

问题 I am just discovering rxandroidble and can reliably send a single command to the BLE device after connection However I am struggling to find the best way to write a chain of commands, ie if I have a series of 3 commands that need to be sent Of course this can be done by nesting the sends, but Im sure there is a better approach!! Single command send code is rxBleMainConection.writeCharacteristic(COMS_WRITE_CHAR_UUID,bytes).toObservable() .subscribe( characteristicValue -> { // Written

问题 I am developing an application using the RxAndroidBle library that performs BLE scans regularly about every 30 seconds, and some BLE operations every minute or so. After a couple of hours, usually between 5 and 24h, the scan stops working. Every time a scan is supposed to be started, I get: 09-05 09:08:37.160 8160-8160/myapp D/BluetoothAdapter: startLeScan(): null 09-05 09:08:37.165 8160-8160/myapp D/BluetoothAdapter: STATE_ON 09-05 09:08:37.165 8160-8160/myapp D/BluetoothAdapter: STATE_ON 09

问题 I am developing an application using the RxAndroidBle library that performs BLE scans regularly about every 30 seconds, and some BLE operations every minute or so. After a couple of hours, usually between 5 and 24h, the scan stops working. Every time a scan is supposed to be started, I get: 09-05 09:08:37.160 8160-8160/myapp D/BluetoothAdapter: startLeScan(): null 09-05 09:08:37.165 8160-8160/myapp D/BluetoothAdapter: STATE_ON 09-05 09:08:37.165 8160-8160/myapp D/BluetoothAdapter: STATE_ON 09