illegalArgumentException: The key must be an application-specific resource id

[mariusk]

After introducing a few more view to my app using anvil, it starts throwing these when I switch views calling setContentView:

09-12 21:15:13.137  19964-19964/net.kjeldahl.secdrones E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: net.kjeldahl.secdrones, PID: 19964
    java.lang.IllegalArgumentException: The key must be an application-specific resource id.
            at android.view.View.setTag(View.java:18542)
            at trikita.anvil.BaseAttrs$9.apply(BaseAttrs.java:308)
            at trikita.anvil.Anvil.inflateNode(Anvil.java:249)
            at trikita.anvil.Anvil.inflateNode(Anvil.java:233)
            at trikita.anvil.Anvil.inflateNode(Anvil.java:233)
            at trikita.anvil.Anvil.inflateNode(Anvil.java:233)
            at trikita.anvil.Anvil.render(Anvil.java:106)
            at trikita.anvil.RenderableView.onMeasure(RenderableView.java:84)
            at android.view.View.measure(View.java:18788)

Any ideas why, and/or what I need to do to fix it?

[mariusk]

So this may very well be related to the fact that I am calling setContentView multiple times from within the same activity. Which leads to the natural question: What IS the proper way to switch view within a running activity?

[zserge]

I don't think so. I would suggest it's a limitation of setTag(id, value) - try using IDs over 0x80000000, otherwise android treats this as an invalid ID and throws an exception.

[mariusk]

Well, I'm not using ids (like none of the examples do). So am I supposed to call setId in my own views, or is it something else you are thinking about?

[zserge]

Sorry, I'm not talking about view ids. What kind of tag attribute setter do you use? tag(value) or tag(id, value)? If the second one - try higher ID values for the tag.

[mariusk]

I'm not setting anything explicitely, which is why I'm confused. I am using Kotlin with the view helpers if that's relevant. For the heck of it, I tried calling setId in my views. Negative view id's don't seem to work (-1, -2 which would equivalent to 0x80000001 etc), but unique values like 0x10000001 etc does seem to work.

[mariusk]

So here's one of the views I'm testing with:

class StartupView(c: Context) : RenderableView(c) {
    companion object {
        val TAG = "StartupView"
    }

    override fun view() : Nodes.ViewNode {
        setId(0x10000001)
        Log.i(TAG, "::view")
        val params = LinearLayout.LayoutParams(WRAP, WRAP)
        params.gravity = Gravity.CENTER
        return v<LinearLayout> {
            -size(FILL, FILL)
            -orientation(LinearLayout.VERTICAL)
            -gravity(CENTER)
            -backgroundColor(Color.parseColor("#ffe0e0"))
            //-layoutParams(params)
            v<LinearLayout> {
                -orientation(LinearLayout.HORIZONTAL)
                -gravity(CENTER_HORIZONTAL)
                -size(FILL, WRAP)
                -backgroundColor(Color.parseColor("#e0ffe0"))
                v<TextView> {
                    -text("Initializing..")
                }
            }
        }
    }
}

Yes, it has some inactive code (params etc) which shouldn't affect anything. I also tested addContentView and setting visibility and bringToFront() etc, and that also seems to work, but is a lot more work (which may pay off eventually, I know).

[mariusk]

This code from SimpleAttrNode.java looks a bit fishy:

    @Override
    public int hashCode() {
        return value == null ? value.hashCode() : 0;
    }

I would assume null should return zero, and hashCode otherwise. But I'm just guessing.

[zserge]

Ok, Anvil 0.1.x doesn't use setTag with IDs anymore, and most of the issues referred to in this thread are gone (like broken hashCode implementation), so I'll probably close this issue.

[droidfreak8931]

Hi @mariusk : you may very well use setTag with IDS , but make sure you define these ids in strings.xml file
EX: view.setTag(R.string.yourTag,yourvalue);

[zserge]

@mariusk @droidfreak8931 Mostly true, except for IDs should rather be declared in ids.xml instead - http://stackoverflow.com/questions/10093975/android-how-to-create-xmls-id then you would be able to do view.setTag(R.id.your_tag, yourValue);