Checkbox after navigate back

[PabloPG]

When I tap on checkbox icon and going to the next page (navigate) and then navigate back, this checkbox always preserve the state, but, if i use a buttom to call .toggle() and going to the next page and back, the state not preserve.

<RadListView
        #myRadListView
	[items]="listaDeProdutos"
	selectionBehavior="Press"
	(itemSelected)="onItemSelected($event)"
	(itemDeselected)="onItemDeselected($event)"
	marginBottom="8"
>
    <ng-template let-produto="item" let-index="index">
        <StackLayout backgroundColor="white" orientation="Vertical">
            <FlexboxLayout class="m-t-10" [ngClass]="{'situacao-item-selected': produto.IsSelected}">
                <FlexboxLayout justifyContent="center" class="produto-dados" flexDirection="column">
                    <Label text]="getProdutoDescricao(produto)" textWrap="true"></Label>
                    <Label text="{{ 'Quantidade: ' + produto.QuantidadeEstoque }}"></Label>
                 </FlexboxLayout>

		<CheckBox
                     #elem
                     [checked]="produto.IsSelected"
                     class="checkbox"
                     (checkedChange)="
                         elem.checked !== produto.IsSelected &&
                             selecionarProduto(produto)
                      "
                      boxType="circle"
                  >
                 </CheckBox>
            </FlexboxLayout>
        </StackLayout>
    </ng-template>
</RadListView>

public onItemSelected(args: ListViewEventData) {
    let radio = this.listViewComponent.listView.getViewById("cb-" + args.index);
    const produto = this.listaDeProdutos.getItem(args.index);
    if (!produto.IsSelected) {
        console.dir(radio.nativeView.isChecked()); // Return false
	radio.nativeView.toggle();
	setTimeout(() => console.dir(radio.nativeView.isChecked()), 1000); // Retun true;
    }
}

Tap inside the checkbox have ripple effect:
https://media.giphy.com/media/H3pfYiz0XlbKqnImw3/giphy.gif

[wschroers]

Did you find a solution for this problem? I have a similar issue where the user can navigate back and forth between multiple views. First time the initial state of the checkbox or radiobutton is correct but after navigate back to a view the selection is gone.

Update: just found that binding a property to fillColor is the cause of my problem (fillColor="{{mainColor}}") When I set the color directly my problem is solved: (fillColor="#da291c")