Android Question [solved] Method getBoundsInWindow not found in android.view.accessibility.AccessibilityNodeInfo

[sirjo66]

Hi,
in my app I use accessibility service

On acs_OnAccessibilityEvent I need to read views properties, so,
based on https://developer.android.com/reference/android/view/accessibility/AccessibilityNodeInfo page (see "Public methods" section)....

Dim evento As JavaObject
Dim nodo As JavaObject

Sub acs_OnAccessibilityEvent (Event As Object, Node As Object)
   
    nodo = Node
    evento = Event

    Dim EventType As Int = evento.RunMethod("getEventType", Null).As(Int)
    Dim PackageName As String = evento.RunMethod("getPackageName", Null).As(String)

    Dim nodes As JavaObject = nodo.RunMethod("get", Array As Object(0)) ' get all nodes
    Dim nodesCount As Int = nodes.RunMethod("size", Null).As(Int) ' get the nodes count
   
    For x = 0 To nodesCount - 1
        Dim obj As JavaObject = nodes.RunMethodJO("get", Array As Object(x)) ' get the node
        Dim ViewId As String = obj.RunMethod("getViewIdResourceName", Null).As(String) ' get the ViewId
        Dim ClassName As String = obj.RunMethod("getClassName", Null).As(String)
        Dim isClickable As Boolean = obj.RunMethod("isClickable", Null).As(Boolean)

        ' and so on with other proprieties....
    Next
End Sub

and it works very well !!

But now I want to read also bounds of view, so......

        Dim outBounds As JavaObject
        outBounds.InitializeStatic("android.graphics.Rect")
        obj.RunMethod("getBoundsInWindow", Array As Object(outBounds))

but when I "RunMethod" the error is:
java.lang.RuntimeException: Method: getBoundsInWindow not found in: android.view.accessibility.AccessibilityNodeInfo

method not found ????? ?

Why ??

Thanks
Sergio

 

[drgottjr]

Rect static? i don't think so. try instantiating it.
rect cannot be null in getBoundsInWindow(). are you sure it isn't?

also - and perhaps irrelevant if i'm correct above - unclear where obj variable is declared.
you already declare obj in your sub, but this second obj doesn't appear there, so you
must be using the same name elsewhere.

 

[sirjo66]

obj variable is correct, the full source code is

Dim evento As JavaObject
Dim nodo As JavaObject

Sub acs_OnAccessibilityEvent (Event As Object, Node As Object)
 
    nodo = Node
    evento = Event

    Dim EventType As Int = evento.RunMethod("getEventType", Null).As(Int)
    Dim PackageName As String = evento.RunMethod("getPackageName", Null).As(String)

    Dim nodes As JavaObject = nodo.RunMethod("get", Array As Object(0)) ' get all nodes
    Dim nodesCount As Int = nodes.RunMethod("size", Null).As(Int) ' get the nodes count
 
    For x = 0 To nodesCount - 1
        Dim obj As JavaObject = nodes.RunMethodJO("get", Array As Object(x)) ' get the node
        Dim ViewId As String = obj.RunMethod("getViewIdResourceName", Null).As(String) ' get the ViewId
        Dim ClassName As String = obj.RunMethod("getClassName", Null).As(String)
        Dim isClickable As Boolean = obj.RunMethod("isClickable", Null).As(Boolean)

        Dim outBounds As JavaObject
        outBounds.InitializeStatic("android.graphics.Rect")
        obj.RunMethod("getBoundsInWindow", Array As Object(outBounds))

        ' and so on with other proprieties....

    Next
End Sub

I don't know very well the use of JavaObject and Reflect, I'm sorry

Anyway, after outBounds.InitializeStatic("android.graphics.Rect") command, outBounds object is not null (I think), here is screenshot

If I try these two lines, the error is the same: Method: getBoundsInWindow not found in: android.view.accessibility.AccessibilityNodeInfo

obj.RunMethod("getBoundsInWindow", Array As Object(Null))

obj.RunMethod("getBoundsInWindow", Null)

Edit:
I changed the inizialize command:

outBounds.InitializeNewInstance("android.graphics.Rect", Null)

and I think that is the correct definition, because now outBounds object is

but the error is the same: method not found

 

[sirjo66]

solved !!!
here is the code:

Dim outBounds As JavaObject
outBounds.InitializeNewInstance("android.graphics.Rect", Null)
obj.RunMethod("getBoundsInScreen", Array As Object(outBounds))