Download Data from URL

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Download Data from URL

The following code snippet demonstrates how to download data as QByteArray [qt.io] from URL. The downloaded data can be saved as a file or converted to appropriate object. For example if an image is downloaded it can be converted to QPixmap [qt.io] or QImage [qt.io] using method loadFromData() [qt.io]

Please note that although the name of the class is FileDownloader the downloaded data is not saved on the disk as file!

Important Classes

• QNetworkAccessManager [qt.io]
• QNetworkRequest [qt.io]
• QNetworkReply [qt.io]
• QUrl [qt.io]

.pro File

If you are targeting Symbian devices remember to add the capability for network services.

Usage

Load Pixmap from URL

• Declare slot

• Connect signal downloaded() to the slot

• Load QPixmap from the downloaded data

Categories:

• HowTo
• snippets