error

Salve a tutti, ho scoperto B4A da meno di un mese e sto seguendo un corso online. Quindi considerate che ho delle basi della programmazione ma non sono assolutamente un esperto. Il mio scopo è quello di creare una app per la mia attività. Purtroppo però non riesco a proseguire il corso online...

I have the following code Sub Globals 'These global variables will be redeclared each time the activity is created. 'These variables can only be accessed from this module. Dim AdView1 As AdView End Sub Sub Activity_Create(FirstTime As Boolean) 'Do not forget to load the layout...

Hi everyone, i'm trying to find a GOOD and simple barcode scanner, similar to the one we have on iOS. I found this library from @Johan Schoeman that seems to do the job, since i've to scan code39 and qrcode. I don't know why... but in this period i'm struggling with Android. The library gives me...

Hi everyone, i'm trying to use UDP to send packets, but i'm getting some errors. I tried this code on an iPhoneXR and it works in debug and also in release(last os version)... i tried the same code on an iPhone6 but when it is in release it doesn't work I need to send a packet, and then wait...

Hi, i am declaring a list in Process sub global and initializing it in Sub Activity_Create(FirstTime As Boolean) List1.Initialize List1.AddAll(Array As Int(1, 2, 3, 4, 5,6,7,8,9,10)) if i run following code in activity create, it runs fine For i = 0 To 9 Log(List1.Get(i)) Next however if i...

Can I upload Crash Log on mysql server when App Crash? I tried like this ::: Sub Application_Error (Error As Exception, StackTrace As String) As Boolean Dim http As HttpJob http.Initialize("temp",Me) Dim post As String post = "errorlog=" & "testing" http.PostString(url...

Hello. I've been trying to upload my app on the amazon appstore but it returns "Invalid APK" I read on their forums that maybe your apk is missing Version Code and Version Name attribute. Try adding #VersionName and #VersionCode in the build.gradle file. OK, but how do i add them when i'm not...

Hi i opened the sdk manager to upgrade but this showed up And if i compile show this:

Hello guys. I try to use a chat module shared by Erel (https://www.b4x.com/android/forum/threads/b4x-cross-platform-chat-layout-example.112649/#content), but when I try to compile the application, I get the following error: The following build commands failed: CompileC...

Hello my app was working fine until i came to work on it but there was an error -> Maven artifact not found: com.google.firebase:firebase-installations (It was working before this error) So i opened sdk manager and selected com.google.firebase:firebase-installations AND...

hi everyone, i noticed that when I run the b4iBuilder on my mac, in 4/5 minutes iCloud got an error saying that my apple id can't connect to it, and requires my password, i type it in and says "Unknown error"... that's annoying.. this happens to someone else?

Good day: I have the following problem when compiling the code. Does anyone know how to solve it? I am using Hosted Builder on a Mac, which runs smoothly. Also, if I run "xcrun simctl list", the current device is set to on. It should be noted that I start Hosted Builder (6.30) with the following...

Hello I am using this function to send commands to a server private Sub SendCommand(workName As String, Command As String, Signature As Boolean, url as String) Dim ToSing As String If Signature Then url = X_PrivateUrl ToSing = "command=" & workName & "&" &...

Greetings, I'm using the intent based camera and discovered the app crashes if the user taps the back button on their phone when the camera app is displayed on the screen. Everything else works. In our app the user taps a camera button. the intend based camera takes a photo, then returns back...

Greetings, I compiled and ran the sample app that comes with the MultiPhotoPicker library. When tapping the "Pick Photos" button the app crashes. Here's a dump of the logs. All help will be appreciated. Thanks. java.lang.NoClassDefFoundError: Failed resolution of...

Hi everyone, i'm coding an app for iOS, i always tried with my iPhoneXR Now i tried to run the same app on iPad and it crashes on loading an SVG File. *** Assertion failure in +[SVGLength pixelsPerInchForCurrentDevice], /Users/b4j/Downloads/SVGKit-2.x/Source/DOM classes/SVG-DOM/SVGLength.m:197...

Hi everyone, i'm trying to code an app structued like so: - Splash Screen where i test internet connection - Login Form - Home (With a Scroll view inside) After Login will appear Home page and then the KeyController will switched to TabBarController. Doing like so the ScrollView get blank and...

Hello, Im using that kind of script to download images from a website, with the standard ImageDownloader service : links.Initialize links.Put(IvMark, ImgUrl) CallSubDelayed2(ImageDownloader, "Download", links) it works great but unfortunately, some times the image dont always exists...

Solved! Hello everybody This error occurs only on Xiaomi MI 9 (MIUI Global 10.2.28; Android 9) Everything is fine with Ulefone Power 5 (Android: 8.1.0) and Nexus 5 ( Android 6.0.1). What am I doing wrong? Thank you Logger verbunden mit: Xiaomi MI 9 .... ** Activity (counter) Create...

As a newbee to B4A, Java and Android programming even running a example file can be frustrating even after hours trying to figure out where I did something wrong in the installation process. I'm trying the B4Xdrawer example provided in [B4X] B4XDrawer - sliding drawer. I did the following...