4. Youtube API in Qt

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Youtube API in Qt


  • Hello again :)

    Anyone know how can I use the Youtube API and create a somewhat custom search in a widget? Something similar to the android youtube search... I do not want to add the whole page in a QWebView(that is easy) because I need the search to be rather small... Something like 300x300 px... Maybe scalable but the minimum width something like that.. I got the query results in a XML format but I don't know what to do from there on...

    Thank you in advance.

    Qt 4.8.4 (or 5.0)
    Windows 7

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  • Use the youtube API's https://developers.google.com/youtube/getting_started#data_api

    You will need to write your own Qt-wrapper for these but should not be particularly difficult. Qt provides all the building blocks that you need.

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  • thank you. my problem wasn't with the youtube api... it was with writting the wrapper though :)

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  • Ah, sorry I misunderstood. QNetworkAccessManager is your friend in this case. Wrap this up in your own class and add member functions that map onto requests using the youtube API.

    Or do you have a more specific problem with doing this type of thing?

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  • The problem i'm having is constructing a custom widget in which to display the results of the query I get from youtube API. it's more of a XML problem now that I think of it... Not so much in the API. I'm not certain on how to reconstruct parts of the XML in my custom widget :) I think I should use the QDeclarativeView class (not certain) to add the XML. Am I even close to the solution? :D

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  • OK I see what you are getting at now. What I would suggest is something along these lines:

    Construct a class that issues the API calls to youtube

    When the data is returned to you process the XML (I assume it is xml from what you said) using QXmlStreamReader.

    Create a class that inherits from QAbstractListModel. Populate this list with items from contained in your xml (i.e. search results).

    If you are using QML (which sounds like it will be a good fit in this case), create a QML document that contains a ListView element along with a custom delegate element (this gets created for each item in your list model).

    From C++ expose your list model of results to QML using QDeclarativeContext::setContextProperty()

    In QML set the "model" property of your list to the id of your exported model.

    That is the basic setup. Of course you can go further by having a TextInput QML element to control what to search for on youtube etc.

    Take a look at some of the QML examples with custom C++ list models that ships with Qt.

    Please feel free to come back with specific questions on the above steps.

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