device

A wrap for this Github project. Scan your NFC enabled Bank Card with your NFC enable device. Enable NFC on your Nfc enable device before trying to scan a card. I have not added any code to check if you have NFC enabled or not. Browse the forum to figure out how you can do it programmatically...

hi...I was following this example B4X: Private jo As JavaObject Manager= GetContext.RunMethod("getSystemService", Array("usb")) mReader=jo.InitializeNewInstance ("com.acs.smartcard.Reader",Array As Object (Manager)) umanager.Initialize Dim usbdevices() As UsbDevice usbdevices =...

I am experiencing this problem in android 4.4.4 even with physical device Compile: B4A Version: 10.2 BETA #1 Java Version: 8 Parsing code. (0.86s) Building folders structure. (0.73s) Compiling code. (0.76s) Compiling layouts code. (0.08s) Organizing libraries. (0.00s) (AndroidX SDK) Generating...

I'm new to B4A and for the past week have been trying to get InputListAsync working on my first attempt at coding an app. The BT connection is to a Classic Bluetooth SPP module in transparent mode. I come from AppInventor2, where the result was achieved with just these building blocks. The...

I have been having a lot of trouble lately with layouts being corrupted when rotating a device with the soft keyboard open. The problem stems from trying to use the IME library HeightChanged event. Unfortunately Android provides no direct way to determine whether the soft keyboard is shown or...

This is possibly an Android 'feature' but I have been wrestling to overcome this for several days and have given up and admit the need for help.. The attached trivial project is a primitive code editor. Run the program on a device and rotate it from portrait to landscape and back - all is well...

Hi guys... I got myself a brand new (arrived today ) HUAWEY MEDIAPAD T5? which i want to turn into my main professional device... its running Android 8.0 I plan to create a kiosk app, so that no other usage may be possible. But this is something I've never dealt with before and so I have a few...

I'm updating one of my apps to target SDK 28 (it previously didn't have a target) and the code which gets the name of the connected device no longer works on my Android 9 device but still works on Android 5 and 6. errors on connectedAddress = ref.GetField("mAddress"): Private Sub...

I have created an app to read and write to BLE devices. This is an extension of BLE_Examples. In this example the scan lists all devices found. You connect to a device by selecting it in the list. At this time it connects to the device. Hitting the Read button gets the characteristics from...

Hi. I'm following a tutorial on getting B4A setup and working. I've reached the point where I'm trying to connect B4A bridge. B4A seems properly installed & is the latest released version. The Android device I'm trying to connect a a Samsung Galaxy S20 running Android 10 (latest updates...

Hi, All If the modern Android device is remotely accessed anyhow - is there any system software now to reboot the device without access to the physical power button ? On non-rooted device. ادامه مطلب...

Hello, I send from my android device to a microcontroller and this sends some data back as confirmation. I use a ESP8266 that receives Wifi data with a server socket and sends it by serial communication to my microcontroller. The communication between the ESP and uC is 115200 baud. I used to...

I need my app to import a csv file into a sqlite database. The csv file is produced by an app on a PC and then copied to a folder on the android device. If the device is android v9 sdk 28, how do I allow my app to access the csv file? I know it's something to do with runtime permissions but I'm...

Hi, As the title says, I have a problem connecting a HID device to an Android phone. The device I want to communicate with is an ARM based board that I created some years ago and have been using with a PC program and now I want an Android app. I'm using the ADB test project as a base and started...

Hi, is it possible to check if a specific app is installed on an android device and then if it is run the app and if not install from a network address. I want to kick of the application from a QR Barcode so I assume I'd have to have an url that runs a specific small app or form that checks if...

Hello, everyone! I have a problem that I can't solve and maybe someone here has an idea how to solve it. Locating with the FusedLocationProvider works quite well when you are outdoors with a vehicle. My problem occurs when the device is not moved. Either when the vehicle has been parked, or...