Tutorials & Examples

Android development starts here. Please do not post questions in this sub-forum.

How to get out of a loop

I have several lines of data like this in a file
1,1000,1000,point1
2,1027.699,1030.228,point2
3,1045.671,1070.345,point3
4,2345.123,1098.346,point4
.
.
etc.

When I enter a point number...
 

two dimensional database/reports

Hello Everyone,
wants to have a two dimensional database.
Is it feasible using the great DBUtils by Erel.

the table should look like this...
 

Attachments

  • db.jpg
    db.jpg
    15.3 KB · Views: 1,220

.net error when starting b4a

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...
 

Data Type and Range

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

Thanks.
 

Cannot sign apk with valid key in B4A

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...
 
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LoadCSV and listview.addtwolines

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...
 

Trial - Version problem?

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...
 

Displaying Animated GIF

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

how to use libraries

I cant figure out how to include a library. Im trying to play with SQL Lite, but find no library tab as stating in an example I saw. I have my paths set up correctly I think. Im on 1.2 thanks
 

hello world does not work

When I compile the project, I obtain this error


Compiling code. 0.03
Generating R file. Error
AndroidManifest.xml:2: error: No resource...
 

Setting value for a text label

Hi,

Sorry for the silly question.

I have created a layout with a single label called jbox.
I simply want to set the text of the label in the program but cant seem to do it.

My code ...
 

Where is the documentation?

USB Driver Package, Revision 3

The Andriod SDK and AVD manager dialogue box looks a little different that that shown in the titorial. It does not gove the option of selecting USB Driver Package, Revision 3.
Is there another...
 

AVD sd card maker

I found it a bit difficult to get a handle on creating the sd card in the emulator. As it involved using the command line I thought I might try to write a small tool to help if you are not...
 

Attachments

  • makeSD.zip
    10.9 KB · Views: 791

App to Droid

Ok now that I have an App that I Made how do I get it to my phone to tests it there it works on the Emulator and i'm not giving it to the Market yet Thanks?

Yes I’m super new teaching myself. I...
 

B4A to Eclipse

Hi,

Is it possible to compile a project generated by B4A with Eclipse?
This is to add features directly from Eclipse.
Do you have an example?

Tx.

JP

Edit : Sorry for the title. It should be...
 
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Standard vs. Enterprise_

What is (will be)the difference between the versions, Standard and Enterprise?

Tazer98
 

Mails from Anywhere software

Hi Erel,

Finally decided to buy the Android version.
After paying via Plimus I was waiting for your email to download the .exe file, etc.

Quite some hours later I noticed that there were...
 

DDMS - Dalvik Debug Monitor

Here is a tip for exploring the folders on the emulator and also its mounted SD-card (if you have added one like I did). I couldn't find a file-explorer in the emulator.

You can use a program...
 
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http Form POST

HI,
due i've needed it...here you are:
B4X:
      Dim url As String
      Dim myHttpRequest As HttpRequest
      url = "https://yourURLhere.html"
      Dim str() As Byte
      Dim form As...
 
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