DynamicArrangements extension for App Inventor.

DynamicArrangements.java

/**  ~~~~~
 * Created with the AppyBuilder Code Editor.
 * This is a template for basic Extension.
 * Modify this template to customize your extension.
 *
 * **** NOTE: DO NOT use a package name. 
 * **** The package name will be created for you automatically.
 * **** Adding a package name will cause a compile error
 */
import android.content.Context;
import android.util.Log;
import com.google.appinventor.components.annotations.*;
import com.google.appinventor.components.runtime.*;
import com.google.appinventor.components.common.ComponentCategory;
import com.google.appinventor.components.common.ComponentConstants;
import android.view.View;

@DesignerComponent(version = 1,  description = "Extension to create dynamic arrangements, made by Yusuf Cihan, in AppyBuilder's Code Editor.",
        category = ComponentCategory.EXTENSION,
        nonVisible = true,   iconName = "http://yusufcihan.com/img/favicon.png")
@SimpleObject(external = true)
public class DynamicArrangements extends AndroidNonvisibleComponent {
    private ComponentContainer container;
    /**
     * @param container container, component will be placed in
     */
    public DynamicArrangements(ComponentContainer container) {
        super(container.$form());
        this.container = container;
    }
  
    @SimpleEvent(description = "This event called when any arrangement clicked that created by CreateArrangement block.")
    public void OnClick(AndroidViewComponent arrangement) {
      EventDispatcher.dispatchEvent(this, "OnClick", arrangement);
    }
  
    @SimpleFunction(description = "Creates a dynamic arrangement in selected arrangement.")
    public Object CreateArrangement(AndroidViewComponent arrangement, int orientation, boolean scrollable, final boolean clickable) {
        final HVArrangement hv = new HVArrangement((ComponentContainer)arrangement, orientation, scrollable);
        hv.getView().setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
                 if (clickable) {
                     OnClick(hv);
                 }
             }
         });
        return hv;
    }
  
    @SimpleFunction(description = "Specifies the component's vertical height, measured in pixels.")
    public void SetHeight(AndroidViewComponent component, int height) {
        ((HVArrangement)component).Height(height);
    }
  
    @SimpleFunction(description = "Returns the component's vertical height, measured in pixels.")
    public int GetHeight(AndroidViewComponent component) {
        return ((HVArrangement)component).Height();
    }
  
    @SimpleFunction(description = "Sets the background color for an arrangement.")
    public void SetBackgroundColor(AndroidViewComponent component, int color) {
        ((HVArrangement)component).getView().setBackgroundColor(color);
    }
  
    @SimpleFunction(description = "Sets the degrees that the arrangement is rotated around the pivot point. Increasing values result in clockwise rotation.")
    public void SetRotation(AndroidViewComponent component, float rotation) {
        ((HVArrangement)component).getView().setRotation(rotation);
    }
  
    @SimpleFunction(description = "The degrees that the arrangement is rotated around the pivot point.")
    public float GetRotation(AndroidViewComponent component) {
        return ((HVArrangement)component).getView().getRotation();
    }
  
     @SimpleFunction(description = "Specifies the component's horizontal width, measured in pixels.")
    public void SetWidth(AndroidViewComponent component, int width) {
        ((HVArrangement)component).Width(width);
    }
  
    @SimpleFunction(description = "Returns the component's horizontal width, measured in pixels.")
    public int GetWidth(AndroidViewComponent component) {
        return ((HVArrangement)component).Width();
    }
  
    @SimpleFunction(description = "Specifies whether the component should be visible on the screen. Value is true if the component is showing and false if hidden.")
    public void SetVisibility(AndroidViewComponent component, boolean visibility) {
        ((HVArrangement)component).Visible(visibility);
    }
  
    @SimpleFunction(description = "Returns true if the component is visible.")
    public boolean GetVisibility(AndroidViewComponent component) {
        return ((HVArrangement)component).Visible();
    }
  
    @SimpleFunction(description = "Sets the vertical or horizontal alignment for contents of the arrangement. The choices are: 1 = top/left, 2 = vertically/horizontally centered, 3 = bottom/right. Alignment has no effect if the arrangement's height is automatic. ")
    public void SetAlign(AndroidViewComponent component, int orientation, int align) {
      if (orientation == ComponentConstants.LAYOUT_ORIENTATION_HORIZONTAL)
      {
        ((HVArrangement)component).AlignHorizontal(align);
      }
      else if(orientation == ComponentConstants.LAYOUT_ORIENTATION_VERTICAL)
      {
        ((HVArrangement)component).AlignVertical(align);
      }
        
    }
  
  	@SimpleFunction(description = "Returns a number that encodes how contents of the arrangement are aligned vertically or horizontally.")
    public int GetAlign(AndroidViewComponent component, int orientation) {
      int result = 0;
      if (orientation == ComponentConstants.LAYOUT_ORIENTATION_HORIZONTAL)
      {
        result = ((HVArrangement)component).AlignHorizontal();
      }
      else if(orientation == ComponentConstants.LAYOUT_ORIENTATION_VERTICAL)
      {
        result = ((HVArrangement)component).AlignVertical();
      }
      return result;
    }
    
    @SimpleProperty(description = "Horizontal layout orientation.")
    public int HorizontalOrientation() {
        return ComponentConstants.LAYOUT_ORIENTATION_HORIZONTAL;
    }
  
  	@SimpleProperty(description = "Vertical layout orientation.")
    public int VerticalOrientation() {
        return ComponentConstants.LAYOUT_ORIENTATION_VERTICAL;
    }
  
}