Add a contact/pin to BBM from BB 10 Native App - qml

Question

In my BB 10 cascades App , I need to add a Button click listener for Adding a contact information like pin:210000A to Blackberry Messenger (BBM). for that I am doing the following...
main.qml is like
import bb.cascades 1.0
Page {
Container {
layout: DockLayout {
}
TextArea {
id: pinEditor
hintText: "Enter PIN to invite"
onTextChanged: {
inviter.pin = text
}
input.submitKey: SubmitKey.Send
}
Inviter {
id: inviter
horizontalAlignment: HorizontalAlignment.Center
verticalAlignment: VerticalAlignment.Center
}
}
}
and Inviter.qml is like
import bb.cascades 1.0
Container {
property string pin
Button {
text: "Invite to BBM"
onClicked: {
query.uri = "pin:" + pin
invoke.trigger("bb.action.INVITEBBM")
}
}
attachedObjects: [
Invocation {
id: invoke
query: InvokeQuery {
id: query
invokeTargetId: "sys.bbm.sharehandler"
onQueryChanged: {
invoke.query.updateQuery()
}
}
}
but I am getting "Read only property cannot be set"error in Qml.I have also added
LIBS += -lbbplatformbbm
LIBS += -lbbsystem and BBM Permission in "bar-descriptor.xml"
Do I need to Register with BBM for Adding contact in BBM from my App? and how to fix the above error?
Please help,
Thanks

Answer 1

I'm guessing here, but try this way:
Container {
property string pin
Button {
text: "Invite to BBM"
onClicked: {
invoke.query.setUri("pin:" + pin)
invoke.trigger("bb.action.INVITEBBM")
}
}
attachedObjects: [
Invocation {
id: invoke
query {
invokeTargetId: "sys.bbm.sharehandler"
onQueryChanged: {
invoke.query.updateQuery()
}
}
}
]
}