Android Question Convert Java code to b4x code

Chris Guanzon · May 6, 2020

Hello, can someone help me how to convert this to b4x code?

I've already read this https://www.b4x.com/android/forum/t...h-additionaljar-and-javaobject-picasso.40904/ .

I have no idea how to use it in b4a.

DonManfred · May 6, 2020

You need to use JavaObject or write a wrapper with java for this Api.
For both you need some java knowledge.

If you are not able to do it by yourself then you can create a thread in the JobForum and pay someone to do the Job.

Chris Guanzon · May 6, 2020

Thanks DonManfred, I am 0 knowledge in java, but i am willing to learn and willing to do it. I just need a guidance on how and where to start.

DonManfred · May 6, 2020

[java] Creating libraries for B4A

New video tutorial is available here: http://www.b4x.com/forum/libraries-developers-questions/12431-video-tutorial-creating-simple-library.html Basic4android has a very good support for external libraries. In fact almost all of the internal keywords are loaded from an external library (Core...

www.b4x.com

Post questions here:

Libraries developers questions

www.b4x.com

Chris Guanzon · May 6, 2020

Thanks, i really appreciate it. ?

Chris Guanzon · May 6, 2020

Hello sir DonManfred, i'm getting confused. Can i just use the #additionaljar like the post here https://www.b4x.com/android/forum/t...h-additionaljar-and-javaobject-picasso.40904/ ? because i have the .jar file and the documentation of the sdk. Will this work?

DonManfred · May 6, 2020

Chris Guanzon said:
like the post here https://www.b4x.com/android/forum/t...h-additionaljar-and-javaobject-picasso.40904/ ?

As seen in the post you need to use JavaObject to access the Methods.

Again: you need some java-knowledge.

Just adding it with AdditionalJar alone will not work.

OliverA · May 6, 2020

By the way, is this actual working code? ITYSmartPosApi is an abstract java class. No java expert here, but I did not think you can instantiate an abstract class. Looks like the class you should be using is TYSmartPosApi and its located at com.whty.smartpos.tysmartposapi.impl

Source to library:

Index of jcenter/com/whty/smartpos/tysmartposapi/maven/1.0.0

Info on Abstract classes:

Abstract Methods and Classes (The Java™ Tutorials > Learning the Java Language > Interfaces and Inheritance)

W3Schools.com

W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

www.w3schools.com

Chris Guanzon · May 7, 2020

OliverA said:
By the way, is this actual working code? ITYSmartPosApi is an abstract java class. No java expert here, but I did not think you can instantiate an abstract class. Looks like the class you should be using is TYSmartPosApi and its located at com.whty.smartpos.tysmartposapi.impl

Source to library:

Index of jcenter/com/whty/smartpos/tysmartposapi/maven/1.0.0

Info on Abstract classes:

Abstract Methods and Classes (The Java™ Tutorials > Learning the Java Language > Interfaces and Inheritance)

W3Schools.com

W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

www.w3schools.com

Hi @OliverA, is the method used in here https://www.b4x.com/android/forum/t...h-additionaljar-and-javaobject-picasso.40904/ works for me? Or i need to do a different approach?

By the way, is this actual working code?

yes it is.

DonManfred · May 7, 2020

Chris Guanzon said:
is the method used in here https://www.b4x.com/android/forum/t...h-additionaljar-and-javaobject-picasso.40904/ works for me?

You can use nearly every Api with JavaObject. Even this one.
I personally prefer writing a wrapper with Java.

Android Question Convert Java code to b4x code

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