《Symbian S60 (第3版) 手机程序开发与实用教程》-Hello

/* ============================================================================ Name : HelloAppUi.cpp Author : Lion Copyright : Your copyright notice Description : CHelloAppUi implementation ============================================================================ */ // INCLUDE FILES #include <avkon.hrh> #include <aknnotewrappers.h> #include <stringloader.h> #include <Hello.rsg> #include <f32file.h> #include <s32file.h> #include "Hello.pan" #include "HelloAppUi.h" #include "HelloAppContainer.h" #include "Hello.hrh" _LIT( KFileName, "C:\\private\\0735B4AC\\Hello.txt" ); _LIT( KText, "Hello World!"); // ============================ MEMBER FUNCTIONS =============================== // ----------------------------------------------------------------------------- // CHelloAppUi::ConstructL() // Symbian 2nd phase constructor can leave. // ----------------------------------------------------------------------------- // void CHelloAppUi::ConstructL() { // Initialise app UI with standard value. BaseConstructL(); // Create view object iAppContainer = CHelloAppContainer::NewL( ClientRect() ); // Create a file to write the text to RFs fsSession; User::LeaveIfError(fsSession.Connect()); CleanupClosePushL( fsSession ); TInt err = fsSession.MkDirAll(KFileName); if ( KErrNone != err ) { CleanupStack::PopAndDestroy(1); // fsSession return; } RFile file; err = file.Replace(fsSession, KFileName, EFileWrite ); CleanupClosePushL( file ); if ( KErrNone != err ) { CleanupStack::PopAndDestroy(2); // file, fsSession return; } RFileWriteStream outputFileStream( file ); CleanupClosePushL( outputFileStream ); outputFileStream << KText; CleanupStack::PopAndDestroy(3); // outputFileStream, file, fsSession } // ----------------------------------------------------------------------------- // CHelloAppUi::CHelloAppUi() // C++ default constructor can NOT contain any code, that might leave. // ----------------------------------------------------------------------------- // CHelloAppUi::CHelloAppUi() { // No implementation required } // ----------------------------------------------------------------------------- // CHelloAppUi::~CHelloAppUi() // Destructor. // ----------------------------------------------------------------------------- // CHelloAppUi::~CHelloAppUi() { if ( iAppContainer ) { delete iAppContainer; iAppContainer = NULL; } } // ----------------------------------------------------------------------------- // CHelloAppUi::HandleCommandL() // Takes care of command handling. // ----------------------------------------------------------------------------- // void CHelloAppUi::HandleCommandL( TInt aCommand ) { switch( aCommand ) { case EEikCmdExit: case EAknSoftkeyExit: Exit(); break; case ECommand1: { // Load a string from the resource file and display it HBufC* textResource = StringLoader::LoadLC( R_COMMAND1_TEXT ); CAknInformationNote* informationNote; informationNote = new ( ELeave ) CAknInformationNote; // Show the information Note with // textResource loaded with StringLoader. informationNote->ExecuteLD( *textResource); // Pop HBuf from CleanUpStack and Destroy it. CleanupStack::PopAndDestroy( textResource ); } break; case ECommand2: { RFs fsSession; RFile rFile; // Connects a client process to the fileserver User::LeaveIfError(fsSession.Connect()); CleanupClosePushL(fsSession); //Open file where the stream text is User::LeaveIfError(rFile.Open(fsSession,KFileName, EFileStreamText));//EFileShareReadersOnly));// EFileStreamText)); CleanupClosePushL(rFile); // copy stream from file to RFileStream object RFileReadStream inputFileStream(rFile); CleanupClosePushL(inputFileStream); // HBufC descriptor is created from the RFileStream object. HBufC* fileData = HBufC::NewLC(inputFileStream, 32); CAknInformationNote* informationNote; informationNote = new ( ELeave ) CAknInformationNote; // Show the information Note informationNote->ExecuteLD( *fileData); // Pop loaded resources from the cleanup stack CleanupStack::PopAndDestroy(4); // filedata, inputFileStream, rFile, fsSession fsSession.Close(); } break; default: Panic( EHelloUi ); break; } } // ----------------------------------------------------------------------------- // Called by the framework when the application status pane // size is changed. Passes the new client rectangle to the // AppContainer // ----------------------------------------------------------------------------- // void CHelloAppUi::HandleStatusPaneSizeChange() { iAppContainer->SetRect( ClientRect() ); } // End of File