Native Development

[silwar]

Hi,

I am trying code given in this page but I am getting 'Page' does not name a type in Test.hpp file at following line

private:

    Page *appPage;

    Container *mRootContainer;

};

What could be the possible solution for resolving this issue?

[oliver_kranz]

Do you have all the includes?

#include <bb/cascades/Page>

[silwar]

Yes I have added all include

// Default empty project template

#ifndef ContainerInjection_HPP_

#define ContainerInjection_HPP_

#include<QObject>

#include<bb/cascades/Page>

#include<bb/cascades/Container>

namespace bb { namespace cascades { class Application; }}

classContainerInjection : publicQObject

{

    Q_OBJECT

public:

    ContainerInjection(bb::cascades::Application *app);

    virtual ~ContainerInjection() {}

    // By using Q_INVOKABLE we can call it from qml

    Q_INVOKABLE void injectContainer();

private:

    Page *appPage;

    Container *mRootContainer;

};

#endif/* ContainerInjection_HPP_ */

[silwar · Accepted solution]

Ok I have solved this issue with adding bb::cascades with page
please have a look at following code

private:

    bb::cascades::Page *appPage;

    bb::cascades::Container *mRootContainer;

};

[Zmey]

Hi,

It's better to forward-declare classes in .h file just like the Application class is declared in your code:

namespace bb {
  namespace cascades {
    class Application;
    class Container;
    class Page;
  }
}

This will make compilation faster, which is especially noticeable in large projects.

Include files in .cpp only if possible.

In .h files include:

1) QObject.h - this is required by MOC

2) Classes which are instantiated in place (for example MyClass c;     not MyClass *c - this is just a pointer and doesn't require a fully defined class)

3) Class from which your class inherits (in this case it is QObject)