How do I add Designer Property in my code

[Faraz_Firoz]

How do I add Designer Property in my code

[oseamiya]

Always see the source code. You'll find the way.
Example :

appinventor-sources/HVArrangement.java at master · mit-cml/appinventor-sources (github.com)

[Know_About_IT]

@Faraz_Firoz

How do I add Designer Property in my code

@DesignerProperty(editorType = PropertyTypeConstants.your property type here,
defaultValue = your default value here"")
@SimpleProperty()
public void YourProperty() {

}

[Faraz_Firoz]

Thank you both your two answer is correct