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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>CHelloWorldBasicAppUi Class Reference</title><link href="style.css" rel="stylesheet" type="text/css"></head><table border="0" width="100%" height="8" bgcolor="#eeeeee"><tr> <td width="100%" height="1"><b><font size="2" color="#000000" face="Arial, Helvetica, sans-serif"><strong><a name=Top></a>S60 3rd Edition SDK FP2 for Symbian OS </strong></font></b><br><i>Example Applications Guide</i></td></tr> </table><!-- Generated by Doxygen 1.4.5 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li id="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>CHelloWorldBasicAppUi Class Reference</h1><!-- doxytag: class="CHelloWorldBasicAppUi" --><!-- doxytag: inherits="CAknAppUi" --><code>#include <<a class="el" href="helloworldbasicappui_8h-source.html">helloworldbasicappui.h</a>></code><p>Inherits CAknAppUi.<p>Inheritance diagram for CHelloWorldBasicAppUi:<p><center><img src="class_c_hello_world_basic_app_ui__inherit__graph.png" border="0" usemap="#_c_hello_world_basic_app_ui__inherit__map" alt="Inheritance graph"></center><a href="class_c_hello_world_basic_app_ui-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>CHelloWorldBasicAppUi application UI class. Interacts with the user through the UI and request message processing from the handler class <p><p>Definition at line <a class="el" href="helloworldbasicappui_8h-source.html#l00032">32</a> of file <a class="el" href="helloworldbasicappui_8h-source.html">helloworldbasicappui.h</a>.<table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_hello_world_basic_app_ui.html#9ce34ba0b947863222da3c63d0481044">ConstructL</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_hello_world_basic_app_ui.html#7125b19ca9ed9c5c28ea07709c9421d7">CHelloWorldBasicAppUi</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_hello_world_basic_app_ui.html#9aa621dc774b9ce3172c03db921996cf">~CHelloWorldBasicAppUi</a> ()</td></tr><tr><td colspan="2"><br><h2>Private Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_hello_world_basic_app_ui.html#a682d228622cea7790645ce10f591242">HandleCommandL</a> (TInt aCommand)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_hello_world_basic_app_ui.html#6acdbe8a9b57446075bf46d035e751eb">HandleResourceChangeL</a> (TInt aType)</td></tr><tr><td colspan="2"><br><h2>Private Attributes</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_c_hello_world_basic_app_view.html">CHelloWorldBasicAppView</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_hello_world_basic_app_ui.html#45dd0a3e0e75e56b4727a01a8ef2c6b1">iAppView</a></td></tr></table><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="7125b19ca9ed9c5c28ea07709c9421d7"></a><!-- doxytag: member="CHelloWorldBasicAppUi::CHelloWorldBasicAppUi" ref="7125b19ca9ed9c5c28ea07709c9421d7" args="()" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">CHelloWorldBasicAppUi::CHelloWorldBasicAppUi </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>CHelloWorldBasicAppUi. C++ default constructor. This needs to be public due to the way the framework constructs the AppUi <p>Definition at line <a class="el" href="helloworldbasicappui_8cpp-source.html#l00100">100</a> of file <a class="el" href="helloworldbasicappui_8cpp-source.html">helloworldbasicappui.cpp</a>.<div class="fragment"><pre class="fragment"><a name="l00101"></a>00101 {<a name="l00102"></a>00102 <span class="comment">// No implementation required</span><a name="l00103"></a>00103 }</pre></div><p> </td> </tr></table><a class="anchor" name="9aa621dc774b9ce3172c03db921996cf"></a><!-- doxytag: member="CHelloWorldBasicAppUi::~CHelloWorldBasicAppUi" ref="9aa621dc774b9ce3172c03db921996cf" args="()" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">CHelloWorldBasicAppUi::~CHelloWorldBasicAppUi </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap><code> [virtual]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>~CHelloWorldBasicAppUi. Virtual Destructor. <p>Definition at line <a class="el" href="helloworldbasicappui_8cpp-source.html#l00110">110</a> of file <a class="el" href="helloworldbasicappui_8cpp-source.html">helloworldbasicappui.cpp</a>.<p>References <a class="el" href="helloworldbasicappui_8h-source.html#l00077">iAppView</a>.<div class="fragment"><pre class="fragment"><a name="l00111"></a>00111 {<a name="l00112"></a>00112 <span class="keywordflow">if</span> ( <a class="code" href="class_c_hello_world_basic_app_ui.html#45dd0a3e0e75e56b4727a01a8ef2c6b1">iAppView</a> )<a name="l00113"></a>00113 {<a name="l00114"></a>00114 <span class="keyword">delete</span> <a class="code" href="class_c_hello_world_basic_app_ui.html#45dd0a3e0e75e56b4727a01a8ef2c6b1">iAppView</a>;<a name="l00115"></a>00115 <a class="code" href="class_c_hello_world_basic_app_ui.html#45dd0a3e0e75e56b4727a01a8ef2c6b1">iAppView</a> = NULL;<a name="l00116"></a>00116 }<a name="l00117"></a>00117 }</pre></div><p> </td> </tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="9ce34ba0b947863222da3c63d0481044"></a><!-- doxytag: member="CHelloWorldBasicAppUi::ConstructL" ref="9ce34ba0b947863222da3c63d0481044" args="()" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void CHelloWorldBasicAppUi::ConstructL </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>ConstructL. 2nd phase constructor. <p>Definition at line <a class="el" href="helloworldbasicappui_8cpp-source.html#l00040">40</a> of file <a class="el" href="helloworldbasicappui_8cpp-source.html">helloworldbasicappui.cpp</a>.<p>References <a class="el" href="helloworldbasicappui_8h-source.html#l00077">iAppView</a>, and <a class="el" href="helloworldbasicappview_8cpp-source.html#l00028">CHelloWorldBasicAppView::NewL()</a>.<div class="fragment"><pre class="fragment"><a name="l00041"></a>00041 {<a name="l00042"></a>00042 <span class="comment">// Initialise app UI with standard value.</span><a name="l00043"></a>00043 BaseConstructL(CAknAppUi::EAknEnableSkin);<a name="l00044"></a>00044 <a name="l00045"></a>00045 <span class="comment">// Here the Hello.txt file is created. Because HelloWorld application is</span><a name="l00046"></a>00046 <span class="comment">// localized to various languages, the Hello.txt-file is created every time</span><a name="l00047"></a>00047 <span class="comment">// with current localization language</span><a name="l00048"></a>00048 <span class="comment">//</span><a name="l00049"></a>00049 RFs fsSession;<a name="l00050"></a>00050 User::LeaveIfError(fsSession.Connect());<a name="l00051"></a>00051 CleanupClosePushL( fsSession );<a name="l00052"></a>00052 TInt objectsInStack = 1;<a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="preprocessor"> #if defined(__WINS__) || defined(__WINSCW__)</span><a name="l00055"></a>00055 <span class="preprocessor"></span> <span class="comment">// create private folder, when testing in emulator.</span><a name="l00056"></a>00056 <span class="comment">// ignore the return value; if this fails, then file.Replace() will fail</span><a name="l00057"></a>00057 <span class="comment">// and a warning note will be printed.</span><a name="l00058"></a>00058 <span class="comment">//</span><a name="l00059"></a>00059 fsSession.CreatePrivatePath(EDriveC);<a name="l00060"></a>00060 <span class="preprocessor"> #endif</span><a name="l00061"></a>00061 <span class="preprocessor"></span><a name="l00062"></a>00062 RFile file;<a name="l00063"></a>00063 <a name="l00064"></a>00064 <span class="comment">// Create a file to write the text to</span><a name="l00065"></a>00065 TInt err = file.Replace(fsSession, KHelloFileName, EFileWrite );<a name="l00066"></a>00066 <span class="keywordflow">if</span> (KErrNone == err)<a name="l00067"></a>00067 {<a name="l00068"></a>00068 CleanupClosePushL( file );<a name="l00069"></a>00069 <a name="l00070"></a>00070 RFileWriteStream outputFileStream( file );<a name="l00071"></a>00071 CleanupClosePushL( outputFileStream );<a name="l00072"></a>00072 <a name="l00073"></a>00073 <span class="comment">// Load a string from the resource file and stream it to file</span><a name="l00074"></a>00074 HBufC* textResource = StringLoader::LoadLC( R_HEWB_FILE_TEXT );<a name="l00075"></a>00075 objectsInStack += 3; <span class="comment">// file, outputFileStream, testResource</span><a name="l00076"></a>00076 <a name="l00077"></a>00077 outputFileStream << *textResource;<a name="l00078"></a>00078 }<a name="l00079"></a>00079 <span class="keywordflow">else</span><a name="l00080"></a>00080 {<a name="l00081"></a>00081 _LIT(KFileWriteFailed,<span class="stringliteral">"Writing file %S failed: error %d"</span>);<a name="l00082"></a>00082 CAknWarningNote* note = <span class="keyword">new</span> ( ELeave ) CAknWarningNote(ETrue);<a name="l00083"></a>00083 <a name="l00084"></a>00084 TBuf<64> text;<a name="l00085"></a>00085 text.Format(KFileWriteFailed, &KHelloFileName, err);<a name="l00086"></a>00086 note->ExecuteLD( text );<a name="l00087"></a>00087 }<a name="l00088"></a>00088 <a name="l00089"></a>00089 CleanupStack::PopAndDestroy(objectsInStack, &fsSession);<a name="l00090"></a>00090 <a name="l00091"></a>00091 <span class="comment">// Create view object</span><a name="l00092"></a>00092 <a class="code" href="class_c_hello_world_basic_app_ui.html#45dd0a3e0e75e56b4727a01a8ef2c6b1">iAppView</a> = <a class="code" href="class_c_hello_world_basic_app_view.html#5891ab00f23b517058efe213c1febfd2">CHelloWorldBasicAppView::NewL</a>( ClientRect() );<a name="l00093"></a>00093 <a name="l00094"></a>00094 }</pre></div><p> </td> </tr></table>⌨️ 快捷键说明
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