Cascades Development

[lvandyk]

Can anyone point me to further resources and examples on how to use JsonDataAccess to parse certain json data and display it in a ListView?

I have been trying all sorts of methods and none work.

If I simply wanted to show a list of items that are clickable and display more information, would a QListDataModel be the right choice?

Thank you!

[smacmartin]

Have you looked at stampcollector and weatherguesser yet?  These should do what you want.

Stuart

[lvandyk]

I've tried copying those examples but I still get issues.

I directly copied the code from: https://developer.blackberry.com/cascades/reference/bb__data__jsondataaccess.html#load 

but I get the following issue:

../src/MenuHandler.cpp:71:66: error: no matching function for call to 'bb::data::JsonDataAccess::load(QString)'

even though in the API it exists:

QVariant load (const QString &filePath)

Here is my code:

JsonDataAccess jda;
QVariant mainList = jda.load(QString::fromStdString("test.json"));

GroupDataModel *model = new GroupDataModel(QStringList() << "region");
model->insert(mainList);

myEventsLSTVW = new ListView();
myEventsLSTVW->setDataModel(model);

Any suggestions? Thanks!

[smacmartin]

Have you switched to Beta2?

Stuart

[mdodd]

+1 for this issue. Just imported an app created in Beta 1, made the changes recommended in the Upgrade To Beta 2 guide, and I get the error undefined reference to `bb::data::JsonDataAccess::JsonDataAccess(QObject*)'  when declaring the JsonDataAccess variable. 

[smacmartin]

You need to add the corresponding library in your .pro file:

LIBS += -lbbdata

Stuart

[mdodd]

Yep, that's worked for me. Thanks Stuart.

[smacmartin]

As for the original question:

Were the samples enough to answer your question?

Stuart

[nareshkodumuri]

Hi,

          You should add LIBS += -lbbdata to ur .pro file in ur project all the classes regarding JsonDataAccess are stored in bb::data namespace.so inorder to access these classes u need to add LIBS += -lbbdata  to ur .pro file in ur application.

Regards,

Naresh Kodumuri.