Detailed Description▲
The url type refers to a resource locator (like a file name, for example). It can be either absolute, e.g. "http://qt-project.org", or relative, e.g. "pics/logo.png". A relative URL is resolved relative to the URL of the containing component.
For example, the following assigns a valid URL to the Image::source property, which is of type url:
Image { source: "pics/logo.png" }When integrating with C++, note that any QUrl value passed into QML from C++ is automatically converted into a url value, and vice-versa.
Alternatively you may convert your url to a URL object in order to access and modify its components:
var urlObject = new URL(url);Using the url Type▲
When a relative URL is written to a url type property, it is converted into a URL object, so matching the URL value against the input string value will fail. Instead, convert the string to a URL using Qt.resolvedUrl() for means of comparison, and use toString() to get the contents of the URL:
Image {
source: "pics/logo.png"
Component.onCompleted: {
// This prints 'false'. Although "pics/logo.png" was the input string,
// it's been converted from a string to a URL, so these two are not the same.
console.log(source == "pics/logo.png")
// This prints 'true' as Qt.resovledUrl() converts the string into a
// URL with the correctly resolved path
console.log(source == Qt.resolvedUrl("pics/logo.png"))
// This prints the absolute path, e.g. "file:///path/to/pics/logo.png"
console.log(source.toString())
}
}When referring to files stored with the Qt Resource System from within QML, you should use "qrc:///" instead of ":/" as QML requires URL paths. Relative URLs resolved from within that file will use the same protocol.
Additionally, URLs may contain encoded characters using the 'percent-encoding' scheme specified by RFC 3986. These characters will be preserved within properties of type url, to allow QML code to construct precise URL values.
For example, a local file containing a '#' character, which would normally be interpreted as the beginning of the URL 'fragment' element, can be accessed by encoding the characters of the file name:
Image { source: encodeURIComponent("/tmp/test#1.png") }This basic type is provided by the QML language.
See Also▲
See also QML Basic Types