Description and category annotation ignored for custom extensions

Open Source Development Extension Development
,
1

In the designer description and category annotation are ignored. Category is always "unspecified". Description is the property name.

Example code:

    @SimpleProperty(category = PropertyCategory.BEHAVIOR, description = "This is the description.")
    public String TestProp() {
        return "Hello";
    }

    @DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_ASSET, defaultValue = "")
    @SimpleProperty
    public void TestProp(String path) {
        // Nothing to do
    }
![property|547x244](upload://c6gPMRu0m2fjEUsafwZB8vpxyrK.png)
2

The image:

property
property547×244 30.9 KB

3

Which mechanism are you using to build the extension? Are you building it with the code in the source tree or are you using the extension template repository?

4

Sorry, but I don't know what "source tree" or "extension template repository" mean.

I used this instruction http://kio4.com/appinventor/125B_extensiones_crear_i.htm to get a folder named "appinventor-sources" which contains all I need.

I'll add a very simple extension with nothing more than only one property. I decompiled the build extension. The decompiler shows this (it is identical to the source and the annotations are not lost):

package de.ullisroboterseite.testextension;

import com.google.appinventor.components.annotations.DesignerComponent;
import com.google.appinventor.components.annotations.DesignerProperty;
import com.google.appinventor.components.annotations.PropertyCategory;
import com.google.appinventor.components.annotations.SimpleObject;
import com.google.appinventor.components.annotations.SimpleProperty;
import com.google.appinventor.components.common.ComponentCategory;
import com.google.appinventor.components.runtime.AndroidNonvisibleComponent;
import com.google.appinventor.components.runtime.Component;
import com.google.appinventor.components.runtime.ComponentContainer;

@DesignerComponent(category = ComponentCategory.EXTENSION, nonVisible = true, version = 1)
@SimpleObject(external = true)
/* loaded from: classes.dex */
public class TestExtension extends AndroidNonvisibleComponent implements Component {
    public TestExtension(ComponentContainer container) {
        super(container.$form());
    }

    @SimpleProperty(category = PropertyCategory.BEHAVIOR, description = "This is the description.")
    public String TestProp() {
        return "Hello";
    }

    @SimpleProperty
    @DesignerProperty(defaultValue = "", editorType = "asset")
    public void TestProp(String path) {
    }
}

de.ullisroboterseite.testextension.aix (5.0 KB)

5

Ok, that's an in source tree build then. I'll poke around and see what's going on there.

6

category only works with a property setter, not getter, and only with using DesignerProperty annotation, i think.

7

Is it working?:

    @SimpleProperty(description = "This is the description.")
    public String TestProp() {
        return "Hello";
    }

    @DesignerProperty(category = PropertyCategory.BEHAVIOR, editorType = PropertyTypeConstants.PROPERTY_TYPE_ASSET, defaultValue = "")
    @SimpleProperty
    public void TestProp(String path) {
        // Nothing to do
    }
8

no, category is used for @SimpeProperty, not @DesignerProperty.

1 Like
9

Yes it's true. So what Ulrich showed should work.

10

No, here is an example from a built-in component:

@SimpleProperty(
      category = PropertyCategory.APPEARANCE,
      description = "Left, center, or right.",
      userVisible = false)
  public int TextAlignment() {
    return textAlignment;
  }

  @DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_TEXTALIGNMENT,
                    defaultValue = Component.ALIGNMENT_CENTER + "")
  @SimpleProperty(userVisible = false)
  public void TextAlignment(int alignment) {
    this.textAlignment = alignment;
    TextViewUtil.setAlignment(view, alignment, true);
  }
1 Like