... exampleabout 131 , 139 BookDetailItemRenderer.mxml, creating 134 , 135 book layout, creating 135 - 137 custom event, creating 133 main application, creating 135 - 137 simple book catalog XML le, creating 132 book ... 100containersabout 29, 31 backgroundColor properties 35 box containers 35 constraint-based layout 39 features 31 form containers 38 hbox and vbox combination 35 hbox containers 35 layout containers 31 , 34 layout ... 192, 1 93 clone function 97commitProperties() method 98components, Flex Builderabout 13 Eclipse-based IDE 13 Flash Player 9 or later 13 Flex SDK 13 types 29constraint-based layout 39 -41container...