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Ensuring Scroll Bar Background is drawn properly
When drawing a control (list box, grid, editor, etc.) that uses a scroll bar, the background of the scroll bar may remain white. This happens when a container does not pass the correct object (context-specific skin parameters) to its child controls. Proper skinning for child controls can be can be enabled by implementing the CCoeControl::MopSupplyObject() method for the container class, and making sure that the object provider chain between controls and their parents is set up correctly.
To correctly draw scroll bar backgrounds:
First, add the following code to the constructor of the view class derived from CCoeControl:
// make this as member variable
iSkinContext = CAknsBasicBackgroundControlContext::NewL(
Note: When using the 'KAknsIIDQsnBgAreaMainAppsGrid' skinID, provide the application (full screen) rect as above. Then, implement MopSupplyObject() as follows:
TTypeUid::Ptr CMyCustomGridAppView::MopSupplyObject( TTypeUid aId )
if( aId.iUid == MAknsControlContext::ETypeId && iSkinContext != NULL )
return MAknsControlContext::SupplyMopObject( aId, iSkinContext );
return CCoeControl::MopSupplyObject( aId );