Qt WebView provides a way to display web content in a QML application without necessarily including a full web browser stack by using native APIs where it makes sense.
This is useful on mobile platforms such as Android, iOS, and UWP (Universal Windows Platform); especially on iOS, where policy dictates that all web content is displayed using the operating system's web view.
On Windows and Linux, Qt WebView depends on the Qt WebEngine module to render content.
On macOS, the system web view is used in the same manner as iOS.
To make the Qt WebView module function correctly across all platforms, it's necessary to call QtWebView::initialize() before creating the QGuiApplication instance and before window's QPlatformOpenGLContext is created.
The module provides a single QML component for displaying web content in the application: WebView.
Due to platform limitations, overlapping the WebView with other QML components is not supported. Doing this will have unpredictable results which may differ from platform to platform.
From API level 30 the native Android WebView will have file access disabled by default. Since there are no APIs in QtWebView to override the file access property, the two environment variables QT5_ANDROID_WEBVIEW_ALLOW_FILE_ACCESS and QT5_ANDROID_WEBVIEW_ALLOW_FILE_ACCESS_FROM_URLS are provided which, when set, re-enables file access support again.
Take a look at the Qt WebView Examples for a demonstration on how the APIs can be used in applications.
Qt WebView is available under commercial licenses from The Qt Company. In addition, it is available under the GNU Lesser General Public License, version 3, or the GNU General Public License, version 2. See Qt Licensing for further details.
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