Android Question Use java libs with javaobject

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stevel05

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If it only does what is shown in the video, it would be easier to create a class / custom view in B4a to do the same.
 
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sareban

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Thanks
But I want to learn how I can use java libraries with javaobject in B4A
 
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Jorge M A

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Usefull tutorials from @DonManfred :

Wrapping a small and easy 3rd party library with java

I am going to try and wrap this (CircularButton) from here https://github.com/Alexrs95/Circula...alexrs/circularbutton/lib/CircularButton.java Found it on the android-arsenal.com website. Will in all probability call on wrapper Doctor @DonManfred's help to work through this :)....that is if you...
www.b4x.com

Wrapping a small and easy 3rd party library with java - Part II

Started here i released a tutorial about wrapping a library for b4a. Basically this is the same here but i´ve caputed the hole process :D Have fun (or be bored watching it). Hope it helps a bit
www.b4x.com
 
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Jorge M A

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sareban

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That library hasnt jar file
Should the java file be converted to jar file with wrapp?
is it possible to convert java file to jar file without wrapp?
 
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TILogistic

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LGenerator - Library Generator

LGenerator is another python script wrapped in pyInstaller. What it does? It generates an xml/jar file for a wrapped library. It is similar to SLC (SLC never worked for me). It is the same as Ecplise's 2 step (Generate Javadoc + Export JAR). What it doesnt do? Automatically create libraries...
www.b4x.com

+}
 
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Biswajit

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sareban said:
That library hasnt jar file
Should the java file be converted to jar file with wrapp?
is it possible to convert java file to jar file without wrapp?
Click to expand...
Yes in most cases its possible to use jar file without wrapper.

1. Copy that jar and its dependencies (if applicable) to additional library folder.
2. Include those using #AdditionalJar
B4X: 
#AdditionalJar: yourlib.jar
3. Add #if JAVA at the bottom of the activity in which you want to use that library functions.
4. Inside that #if import relevant class from that library
5. Then write a function to use that library functions as you want.
B4X: 
#if JAVA
import your.library.classname;

Public void testfunction(){
   YourLibClass var1 = new YourLibClass(); //just an example
}
#End if
6. Call that function from B4A code using JavaObject.
B4X: 
Dim jo as JavaObject=Me
jo.RunMethod("testfunction",null)
 
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