java.lang.IllegalArgumentException

[Substitut]

trafficstars

Hi,

I use ViewFlow to make an alternative launcher and I got a problem. Every View of my ViewFlow contains a GridView with some icon. It work well but when I do a finish(); in an other activity in order to return to my activity with ViewFlow i got an error.

java.lang.IllegalArgumentException: parameter must be a descendant of this view at android.view.ViewGroup.offsetRectBetweenParentAndChild(ViewGroup.java:4153) at android.view.ViewGroup.offsetDescendantRectToMyCoords(ViewGroup.java:4090) at android.view.ViewRootImpl.scrollToRectOrFocus(ViewRootImpl.java:2129) at android.view.ViewRootImpl.draw(ViewRootImpl.java:1849) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1641) at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2449) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4424) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at dalvik.system.NativeStart.main(Native Method)

This error not happen when I use the Back Button on the Action Bar. I try to solve this problem since few weeks. One of the reason I found is when I use an activity with Theme i got this error again but there is an other reason and i don't find it.

private class ImageAdapter extends ArrayAdapter<View>{

    Context context;

    public ImageAdapter(Context context, ArrayList<View> grid){
        super(context,0,grid);
        this.context = context;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        if (convertView == null) {
            final LayoutInflater inflater = getLayoutInflater();
            convertView = inflater.inflate(R.layout.gridview_background, parent, false);
        }

        ArrayList<ApplicationInfo> listApps = new ArrayList<ApplicationInfo>();
        int start=position *GRID_APPLICATIONS_NUMBER;
        int end=start+GRID_APPLICATIONS_NUMBER;
        for(int i = start; (i< end) && (i<mApplications.size()) ;i++){
            listApps.add(mApplications.get(i));
        }

        GridView mGrid = (GridView) convertView.findViewById(R.id.all_apps);
        mGrid.setAdapter(new HomeFlow.ApplicationsAdapter(context, listApps));
        bindButtons(mGrid);
        mGrid.setSelection(0);

        return convertView;
    }

}

This is my implementation of the adapter in order to stack the viewflow.

private void bindApplications() {

    ArrayList<View> alView = new ArrayList<View>();
    int div = mApplications.size()/GRID_APPLICATIONS_NUMBER;

    if(mApplications.size()%GRID_APPLICATIONS_NUMBER != 0){
        div++;
    }

    for(int i = 0; i<div;i++){
        alView.add(new View(this));
    }        

    ViewFlow viewflow = (ViewFlow) findViewById(R.id.viewflow);
    viewflow.setAdapter(new ImageAdapter(this, alView));

    CircleFlowIndicator indic = (CircleFlowIndicator) findViewById(R.id.viewflowindic);
    viewflow.setFlowIndicator(indic);
}

And here my initialization of the view.

If someone can help me ! Thanks.

[Substitut]

I solve the problem ! The problem was that i call bindApplications in my onResume so when I return to this activity I stack again my ViewFlow and i got this error !

[appss]

Hello... I am facing same problem on some devices. I am calling notifyDataSetChanged() in onResume of class in which i am setting adapter for ViewFlow. I don't get any such exception if i don't call notifyDataSetChanges(). Moreover this exception is shown only in some devices. Is there any other solution to this problem? I need to get my grid views refreshed on pressing back and resuming this activity.

[Substitut]

I didn't work with this library anymore, I found that you can easily do the same things with Fragment on Android. So I don't know. Good luck.