如何获取Qt中安装在设备中的应用程序图标列表

时间：2012-05-13 04:17:57

标签： qt symbian qicon

我正在使用Qt应用程序，我想在其中创建一个QListWidget，其中包含设备及其图标上安装的所有应用程序的名称。 所以我无法从LINK的代码中获取每个应用程序的所有应用程序名称和UID。 但我也无法获得应用程序图标。我试过这个LINK1＆amp; LINK2但在这里我遇到了一些问题，例如如何将CGulIcon转换为QIcon＆amp; CApaMaskedBitmap到QIcon。

我该怎么做？

2 个答案:

答案 0 :(得分：2)

如果您无法获得解决方案，或者对于讨论有任何疑问click here。

<强>的main.cpp 

#include "GetInstalledApps.h"

#include <QtGui>
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    GetInstalledApps w;
    w.showMaximized();
    return a.exec();
}

<强>的.pro 

TEMPLATE = app
TARGET = GetInstalledApps 

QT        += core \
    gui 

HEADERS   += GetInstalledApps.h
SOURCES   += main.cpp \
    GetInstalledApps.cpp
FORMS     += GetInstalledApps.ui
RESOURCES +=

HEADERS += xqinstaller_p.h \
   xqinstaller.h \

SOURCES += xqinstaller_p.cpp \
   xqinstaller.cpp

symbian:LIBS += -lswinstcli \
   -lcommdb \
   -lapparc \
   -lefsrv \
   -lapgrfx \


symbian:TARGET.CAPABILITY += TrustedUI
symbian:TARGET.UID3 = 0xEF3055F4

<强> GetInstalledApps.h 

#ifndef GETINSTALLEDAPPS_H
#define GETINSTALLEDAPPS_H

#include <QtGui/QMainWindow>
#include "ui_GetInstalledApps.h"
#include "xqinstaller.h"

class GetInstalledApps : public QMainWindow
{
    Q_OBJECT

public:
    GetInstalledApps(QWidget *parent = 0);
    ~GetInstalledApps();

private:
    void GetApps();

private:
    Ui::GetInstalledAppsClass ui;
    XQInstaller* m_installer;
    QMap<QString, uint> m_applications;
    QList<QString> m_appNames;
    QList<uint> m_appUID;
};

#endif // GETINSTALLEDAPPS_H

<强> GetInstalledApps.cpp 

#include "GetInstalledApps.h"
#include <QScrollArea>

GetInstalledApps::GetInstalledApps(QWidget *parent)
    : QMainWindow(parent)
{
    ui.setupUi(this);
    setWindowTitle("GetAllInstalledApps");
    m_installer = new XQInstaller(this);
    GetApps();

}

void GetInstalledApps::GetApps()
{
    /* Get List of applications. 
     * type of m_applications is QMap<QString, uint>.
     * type of  m_installer is XQInstaller
     */
    m_applications = m_installer->applications();

    /* Get List of application names
     type of m_appNames is QList<QString> */
    m_appNames = m_applications.keys(); 

    /* Get List of application UID in decimal. 
    type of m_appUID is QList<uint> */
    m_appUID = m_applications.values(); 

    ui.listWidget->clear();
    for (int i = 0; i < m_appNames.count(); i++) 
    {
        QString str;
        /* convert UID from decimal to hex and then string. */
        str.setNum(m_appUID.at(i),16);
        /* append name and UID to string */     
        QString string(m_appNames.at(i)+"  UID:"+ str);
        /* append string to list widget to display on screen */
        ui.listWidget->addItem(string);
    }

    /* Let's make the UI scale so that we can scroll it. */
    QScrollArea* scrollArea = new QScrollArea;
    scrollArea->setWidget(ui.listWidget);
    scrollArea->setWidgetResizable(true);

    setCentralWidget(scrollArea);
}

GetInstalledApps::~GetInstalledApps()
{

}

<强> xqinstaller.h 

#ifndef XQINSTALLER_H
#define XQINSTALLER_H

// INCLUDES
#include <QObject>
#include <QMap>

class XQInstallerPrivate;

// CLASS DECLARATION
class XQInstaller : public QObject
{
    Q_OBJECT

public:
    enum Error {
        NoError = 0,
        OutOfMemoryError,
        AlreadyInUseError,
        UserCancelError, 
        PackageNotSupportedError,
        SecurityFailureError,
        MissingDependencyError,
        NoRightsError,
        BusyError,
        AccessDeniedError,
        UpgradeError,
        UnknownError = -1
    };

    enum Drive {
        DriveA,   DriveB,   DriveC,   DriveD,   DriveE,
        DriveF,   DriveG,   DriveH,   DriveI,   DriveJ,
        DriveK,   DriveL,   DriveM,   DriveN,   DriveO, 
        DriveP,   DriveQ,   DriveR,   DriveS,   DriveT,
        DriveU,   DriveV,   DriveW,   DriveX,   DriveY,
        DriveZ
    };

    XQInstaller(QObject *parent = 0);
    ~XQInstaller();

    bool install(const QString& file, XQInstaller::Drive drive = XQInstaller::DriveC);
    QMap<QString, uint> applications() const;
    bool remove(uint uid);

    XQInstaller::Error error() const;

Q_SIGNALS:
    void applicationInstalled();
    void applicationRemoved();
    void error(XQInstaller::Error);

private:
    friend class XQInstallerPrivate;
    XQInstallerPrivate *d;
};

#endif // XQINSTALLER_H

<强> xqinstaller.cpp 

#include "xqinstaller.h"
#include "xqinstaller_p.h"

/*!
    \class XQInstaller
    \brief The XQInstaller class is used to install sis-packages silently. 
    This extension can be used for example to install back-end applications.

    Example:
    \code
    XQInstaller *installer = new XQInstaller(this);
    QMap<QString, uint> applications = installer->applications();
    QListWidget *applicationList = new QListWidget(this);
    QList<QString> appNames = applications.keys();
    for (int i = 0; i < appNames.count(); i++) {
        applicationList->addItem(appNames.at(i));
    }   
    \endcode
*/

/*!
    Constructs a XQInstaller object with the given parent.
    \sa install(), remove()
*/
XQInstaller::XQInstaller(QObject *parent)
    : QObject(parent), d(new XQInstallerPrivate(this))
{
}

/*!
    Destroys the XQInstaller object.
*/
XQInstaller::~XQInstaller()
{
    delete d;
}

/*!
    Installs a sis package silently given as parameter.

    \param file Sis package
    \param drive Drive letter where the sis is installed to. Default value is 'C'.
    \return If false is returned, an error has occurred. Call error() to get a value of 
    XQInstaller::Error that indicates which error occurred
    \sa error()
*/  
bool XQInstaller::install(const QString& file, XQInstaller::Drive drive)
{
    return d->install(file, drive);
}

/*!
    Get list of installed applications
    If an empty QMap is returned, an error has possibly occurred. Call error() to get a value of 
    XQInstaller::Error that indicates which error occurred if any

    \return List of installed applications
    \sa error()
*/
QMap<QString, uint> XQInstaller::applications() const
{
    return d->applications();
}

/*!
    Removes application specified by the uid

    \param uid of the application
    \return True if removing was successfully started, otherwise false
    \sa error()
*/
bool XQInstaller::remove(uint uid)
{
    return d->remove(uid);
}

/*!
    \enum XQInstaller::Error

    This enum defines the possible errors for a XQInstaller object.
*/
/*! \var XQInstaller::Error XQInstaller::NoError
    No error occured.
*/
/*! \var XQInstaller::Error XQInstaller::OutOfMemoryError
    Not enough memory.
*/
/*! \var XQInstaller::Error XQInstaller::AlreadyInUseError
    Installer is already in used.
*/
/*! \var XQInstaller::Error XQInstaller::UserCancelError
    Installer cancelled by the user.
*/
/*! \var XQInstaller::Error XQInstaller::PackageNotSupportedError
    Package not supported
*/
/*! \var XQInstaller::Error XQInstaller::SecurityFailureError
    Security failure
*/
/*! \var XQInstaller::Error XQInstaller::MissingDependencyError
    Missing dependency
*/
/*! \var XQInstaller::Error XQInstaller::NoRightsError
    No rights
*/
/*! \var XQInstaller::Error XQInstaller::BusyError
    Installer is busy
*/
/*! \var XQInstaller::Error XQInstaller::AccessDeniedError
    Access denied
*/
/*! \var XQInstaller::Error XQInstaller::UpgradeError
    Error while upgrading
*/
/*! \var XQInstaller::Error XQInstaller::UnknownError
    Unknown error.
*/

/*!
    Returns the type of error that occurred if the latest function call failed; otherwise returns NoError
    \return Error code
*/
XQInstaller::Error XQInstaller::error() const
{
    return d->error();
}

/*!
    \fn void XQInstaller::applicationInstalled()

    This signal is emitted when the application has been installed.

    \sa install()
*/

/*!
    \fn void XQInstaller::error(XQInstaller::Error)

    This signal is emitted if error occured during the asynchronous operation

    \sa install()
*/

/*!
    \fn void XQInstaller::applicationRemoved()

    This signal is emitted when the application has been removed.

    \sa remove()
*/

// End of file

<强> xqinstaller_h.h 

#ifndef XQINSTALLER_P_H
#define XQINSTALLER_P_H

// INCLUDES
#include "xqinstaller.h"
#include <SWInstApi.h>
#include <SWInstDefs.h>

// FORWARD DECLARATIONS
class QString;
class QFile;

// CLASS DECLARATION
class XQInstallerPrivate: public CActive
{

public:
    enum State {
        ERemove,
        EInstall
    };

    XQInstallerPrivate(XQInstaller *installer);
    ~XQInstallerPrivate();

    bool install(const QString& file, XQInstaller::Drive drive);
    bool remove(uint uid);
    QMap<QString, uint> applications() const;

public:
    XQInstaller::Error error();

protected:  
    void DoCancel();
    void RunL();

private:
    XQInstaller *q;
    mutable int iError;

    SwiUI::RSWInstSilentLauncher iLauncher;
    SwiUI::TInstallOptions iOptions;
    SwiUI::TInstallOptionsPckg iOptionsPckg;  

    SwiUI::TUninstallOptions iUninstallOptions;
    SwiUI::TUninstallOptionsPckg iUninstallOptionsPckg;
    XQInstallerPrivate::State iState;
    TFileName iFileName;
    bool iLauncherConnected;
};

#endif /*XQINSTALLER_P_H*/

// End of file

<强> xqinstaller_h.cpp 

#include "xqinstaller.h"
#include "xqinstaller_p.h"
#include <f32file.h>
#include <apgcli.h>

XQInstallerPrivate::XQInstallerPrivate(XQInstaller *installer) 
    : CActive(EPriorityNormal), q(installer), iOptionsPckg(iOptions), 
      iUninstallOptionsPckg(iUninstallOptions), iLauncherConnected(false)
{
    CActiveScheduler::Add(this);  
}

XQInstallerPrivate::~XQInstallerPrivate()
{
    Cancel();
    if (iLauncherConnected) {
        iLauncher.Close();
    }
}

bool XQInstallerPrivate::install(const QString& file, XQInstaller::Drive drive)
{
    int asciiValue = 10;  // = 'A'
    TRAP(iError,
        if (!iLauncherConnected) {
            User::LeaveIfError(iLauncher.Connect());
            iLauncherConnected = true;
        }
        if (IsActive()) {
            User::Leave(KErrInUse);
        }

        iState = XQInstallerPrivate::EInstall;
        iOptions.iUpgrade = SwiUI::EPolicyAllowed;
        iOptions.iOCSP = SwiUI::EPolicyNotAllowed;
        iOptions.iDrive = TChar(asciiValue+drive);
        iOptions.iUntrusted = SwiUI::EPolicyAllowed; 
        iOptions.iCapabilities = SwiUI::EPolicyAllowed;  
        iOptions.iOptionalItems = SwiUI::EPolicyAllowed;  
        iOptions.iOverwrite = SwiUI::EPolicyAllowed; 
        TPtrC16 fileName(reinterpret_cast<const TUint16*>(file.utf16()));
        iFileName = fileName;
        iLauncher.SilentInstall(iStatus, iFileName, iOptionsPckg);
        SetActive();
    )
    return (iError == KErrNone);
}

bool XQInstallerPrivate::remove(uint uid)
{
    TRAP(iError,
        if (!iLauncherConnected) {
            User::LeaveIfError(iLauncher.Connect());
            iLauncherConnected = true;
        }
        if (IsActive()) {
            User::Leave(KErrInUse);
        }

        iState = XQInstallerPrivate::ERemove;

        iLauncher.SilentUninstall(iStatus,TUid::Uid(uid),
            iUninstallOptionsPckg, SwiUI::KSisxMimeType);
        SetActive();
    )
    return (iError == KErrNone);
}

QMap<QString, uint> XQInstallerPrivate::applications() const
{
    RApaLsSession lsSession;
    QMap<QString, uint> applications; 

    // Connect to application architecture server
    TRAP(iError,
        User::LeaveIfError(lsSession.Connect());
        CleanupClosePushL(lsSession);

        TApaAppInfo appInfo;
        lsSession.GetAllApps();  

        while (lsSession.GetNextApp(appInfo) == KErrNone) {
            TApaAppCapabilityBuf capability;
            User::LeaveIfError(lsSession.GetAppCapability(capability,
                appInfo.iUid));
            if (appInfo.iCaption.Length() > 0 && !capability().iAppIsHidden) {
                QString fullName = QString::fromUtf16(
                    appInfo.iCaption.Ptr(), appInfo.iCaption.Length());
                applications.insert(fullName, (TUint)appInfo.iUid.iUid);
            }
        }
        CleanupStack::PopAndDestroy(&lsSession);
    )

    return applications; 
}

void XQInstallerPrivate::DoCancel()
{
    if (iState == XQInstallerPrivate::EInstall) {
        iLauncher.CancelAsyncRequest(SwiUI::ERequestSilentInstall);
    } else if (iState == XQInstallerPrivate::ERemove) {
        iLauncher.CancelAsyncRequest(SwiUI::ERequestSilentUninstall);
    }
}

void XQInstallerPrivate::RunL()
{
    if (iStatus.Int() == KErrNone) {
        if (iState == XQInstallerPrivate::EInstall) {
            emit q->applicationInstalled();
        } else if (iState == XQInstallerPrivate::ERemove) {
            emit q->applicationRemoved();
        }
    } else {
        iError = iStatus.Int();
        emit q->error(error());
    }
}

XQInstaller::Error XQInstallerPrivate::error()
{
    switch (iError) {
    case KErrNone:
        return XQInstaller::NoError;
    case SwiUI::KSWInstErrInsufficientMemory:
    case KErrNoMemory:
        return XQInstaller::OutOfMemoryError;
    case SwiUI::KSWInstErrFileInUse:
    case KErrInUse:
        return XQInstaller::AlreadyInUseError;
    case SwiUI::KSWInstErrUserCancel:
        return XQInstaller::UserCancelError;  
    case SwiUI::KSWInstErrPackageNotSupported:
        return XQInstaller::PackageNotSupportedError; 
    case SwiUI::KSWInstErrSecurityFailure:
        return XQInstaller::SecurityFailureError; 
    case SwiUI::KSWInstErrMissingDependency:
        return XQInstaller::MissingDependencyError; 
    case SwiUI::KSWInstErrNoRights:
        return XQInstaller::NoRightsError;
    case SwiUI::KSWInstErrBusy:
        return XQInstaller::BusyError;
    case SwiUI::KSWInstErrAccessDenied:
        return XQInstaller::AccessDeniedError;
    case SwiUI::KSWInstUpgradeError:
        return XQInstaller::UpgradeError;
    case SwiUI::KSWInstErrGeneralError:
    default:
        return XQInstaller::UnknownError;
    }    
}

// End of file

* 以及getting QIcon :: *

需要听众： 

#include <fbs.h> //CFbsBitmap
#include <aknsskininstance.h> //MAknsSkinInstance 
#include <aknsutils.h> //AknsUtils

需要图书馆： 

LIBRARY   fbscli.lib ///CFbsBitmap
LIBRARY   aknskins.lib aknskinsrv.lib aknswallpaperutils.lib  //MAknsSkinInstance ,AknsUtils

源代码：

CGulIcon* CMyClass::GetApplicationIconL(const TUid& aAppUID)
{
    CFbsBitmap* AppIcon(NULL);
    CFbsBitmap* AppIconMsk(NULL);

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

    AknsUtils::CreateAppIconLC(skin,aAppUID,  EAknsAppIconTypeContext,AppIcon,AppIconMsk);
    CleanupStack::Pop(2);

    return CGulIcon::NewL(AppIcon,AppIconMsk);
}

答案 1 :(得分：-1)

好吧，对于图标的东西看看：CGullIcon有一个函数返回Bitmap，一个CFbsBitmap。完成后再查看：http://qt-project.org/doc/qt-4.8/qpixmap.html#fromSymbianCFbsBitmap然后创建一个新的QIcon（QPixmap）（QPixmap =您已转换的图标）。所以很可能你首先将它传递给CFbsBitmap，然后使用QPixmap从theSymibnaCFbsBitmap（）传递它。

如果我没有错，CApaMaskedBitmap是CFbsBitmap的子类，所以它应该是一样的。

要获取应用程序及其UID，请尝试查看：http://www.developer.nokia.com/Community/Wiki/Get_list_of_installed_applications_and_its_UID_in_Qt

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