Tutorials & Examples

Hi, How do I display a animated GIF?
Now it just shows up as a static image.

 

Hi,

I just dloaded the Trial version today and wanted to start with the hello world sample, but when compiling I get the following error:


javac 1.5.0_22...

 

I have filename.csv file contained two fields?
What folder do I have to copy my filename.csv file so I can access the csv file using loadcsv. eg.
Dim su As StringUtils
Dim Table As List
Table...

 

There are several options to develop with B4A:
- Android emulator or a VM.
- Connect to a real device in USB debugging mode
- Connect to a real device with B4A-Bridge.

I recommend starting with...

 

I'm having trouble understanding how csv files are loaded. I've read all the tutorials and posts I could find, but I can't get a grip on it.
With a textreader I can read a line and then do...

 

I have a couple of apps I created in appinventor and signed with my key but when I try to use the same, working, key in B4A it gives me this error:

"jarsigner: Certificate chain not found for...

 

I've been experimenting with GPS tracking using the api at Tiny Geo-coder | The fastest way to find latitude and longitude

I make a url and send a request to...

 

Here's a quick example of voice recognition.
It just displays the results to the log window.
This example shows all the different recognized patterns that are returned by the Voice Module...

 

Where do I find data range for B4A;
float
int
double
long
single
decimal
currency
etc...
List from VB.

Thanks.

 

When I try to start B4A, I get a .net error that says

"Unable to find a version of the runtime to run this application"

I tried uninstalling and reinstalling .net, but that didn't help...

 

B4A-Bridge is made of two components. One component is running on the device and the other is embedded in the IDE.
The device side is the server side. It waits for connections and when a...

 

This might be obvious to some but it caused me some grief so hopefully I can spare someone else some grief.
When using Voice Recognition I have found that it defies the activity lifecycle. What...

 

This is an old tutorial. There are now simpler and better ways to achieve this effect.

For example...

 

The purpose of this framework is to allow you to easily add different types of charts to your projects.
The current version supports pie charts, line charts and bar charts.

The framework is...

 

A new more powerful framework is now available: jRDC2.

This tutorial explains the basic concepts required for creating a connection between Android device and a remote server. In this...

 

Types

Basic4android type system is derived directly from Java type system.
There are two types of variables: primitives and non-primitives types.
Primitives include the numeric types: Byte...

 

Edit: This resource is no longer available. Better resources are available here: https://www.b4x.com/etp.html

You can now download a PDF file that contains most of the tutorials. The...

 

For new projects it is recommended to use OkHttpUtils2: https://www.b4x.com/android/forum/threads/54723/#content

Multipart POST requests are usually used by Html Form components to...

 

As an answer to the thread Forms alike, I thought that the examples below would be of general interest.

Attached there are 4 examples with two same layouts but with different managements...

 

There are many ScrollView examples on the forum, I made a summary of them for my own use and I think it would be interesting for others.

Creating a table view based on ScrollView...