ListBox的一点心得
转自:http://www.symbianx.cn/viewthread.php?tid=47
这两天在看SDK EXAMPLE的LISTBOX例子,有一些心得与大家分享,有什么错误请大家指出。在例子中就用了2个LISTBOX的类,一个是 CEikColumnListBox;另一个是CEikFormattedCellListBox。它们分别对应SINGLE和DOUBLE两种表现形式。下面用代码来说明一下。
CEikColumnListBox* iColListBox; CEikFormattedCellListBox* iForListBox; iColListBox = new (ELeave) CAknSingleStyleListBox(); iForListBox = new (ELeave) CAknDoubleGraphicStyleListBox(); iColListBox->SetContainerWindowL( *this ); iForListBox->SetContainerWindowL( *this ); //从资源文件中生成LISTBOX TResourceReader reader; CEikonEnv::Static()->CreateResourceReaderLC( reader, R_TEST_SINGLE); iColListBox->ConstructFromResourceL( reader ); CEikonEnv::Static()->CreateResourceReaderLC( reader, R_TEST_DOUBLE); iForListBox->ConstructFromResourceL( reader ); //设置SCROLLBAR iColListBox->CreateScrollBarFrameL( ETrue ); iColListBox->ScrollBarFrame()->SetScrollBarVisibilityL( CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto ); iForListBox->CreateScrollBarFrameL( ETrue ); iForListBox->ScrollBarFrame()->SetScrollBarVisibilityL( CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto ); //适合窗口大小 iColListBox->SetRect(Rect()); iForListBox->SetRect(Rect()); //激活 iColListBox->ActivateL(); iForListBox->ActivateL(); //资源.RSS RESOURCE LISTBOX r_text_single { // 给定要生成LISTBOX的ITEMS array_id = r_array_single; // LISTBOX的标示 flags = EAknListBoxSelectionList; } RESOURCE LISTBOX r_text_double { array_id = r_array_double; flags = EAknListBoxSelectionList; } //请注意r_array_single和r_array_double的不同。 // \t 就是分割符。 // "0\tAAAAAA\taaaaaa"最前的0表示在*.mbm中序号为0的图片加到LISTBOX的ITEM前 RESOURCE ARRAY r_array_single { items = { LBUF { txt = " \taaaaaa"; }, LBUF { txt = " \tbbbbbb"; } }; } RESOURCE ARRAY r_array_double { items = { LBUF { txt = "0\tAAAAAA\taaaaaa"; }, LBUF { txt = "0\tBBBBBB\tbbbbbb"; } }; }