d19a1e9b51
The documentation for reading refers to QSensor::reading and it states that readings are not available immediately after start() is called. Instead, one should wait for the readingChanged signal. Until then, reading is documented to be null, so just check for that. This fixes 'Cannot read property x of null' warnings. Fixes: QTBUG-140395 Fixes: QTBUG-140385 Pick-to: 6.10 Change-Id: Ibb36e1d8387628eea333cb6d0537dea25f3980b6 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io> Reviewed-by: Juha Vuolle <juha.vuolle@qt.io> |
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README.md
Qt Documentation
This repository contains the main Qt Reference Documentation, including overviews, Qt topics, examples, and tutorials not specific to any Qt module.
Documentation Projects
The documentation is organized into several documentation projects:
QtDoc
The main Qt Reference Documentation.
Project File: doc/config/qtdoc.qdocconf
Sources: doc/src/ (excluding cmake/ and platformintegration/
subdirectories)
Content:
- Getting started guides and tutorials
- Platform-specific documentation (Android, iOS, macOS, Windows, etc.)
- Qt modules overview and reference
- Development tools and utilities
- Legal information and licenses
- Examples and demos
CMake Targets: docs_QtDoc or html_docs_QtDoc
This project also contains the documentation for examples and tutorials in
the examples/ directory.
QtCMake
Documentation for using Qt with CMake.
Project File: doc/src/cmake/qtcmake.qdocconf
Sources: doc/src/cmake
Content:
- CMake manual and getting started guide
- Qt CMake API reference
- Build system configuration
CMake Targets: docs_qtcmake or html_docs_qtcmake.
QtPlatformIntegration
Documentation for integrating Qt with native platforms.
Project File: doc/src/platformintegration/qtplatformintegration.qdocconf
Sources: doc/src/platformintegration/
Content:
- Qt Platform Abstraction (QPA)
- Platform-specific integration guides
- Native API interaction
CMake Targets: docs_QtPlatformIntegration or html_docs_QtPlatformIntegration.
Building Documentation
The main QtDoc documentation contains links to pages from other documentation projects (QtCore, QtQuick, etc.). Similarly, these projects link back to pages and topics in QtDoc.
Therefore, the most reliable approach is to build Qt documentation as part of a complete Qt build that includes all supported Qt modules. Refer to the README.md in qt5.git for detailed instructions.
Building Examples
Build the examples by opening the CMakeLists.txt files in the respective example directory.
Writing and Improving Qt Documentation
Qt Documentation is written in QDoc syntax. See https://doc.qt.io/qt-6/qdoc-index.html for the QDoc manual.
For more information about Qt's documentation, refer to the Qt Project wiki: https://wiki.qt.io/Qt_Writing_Guidelines
Writing and Improving Qt Examples
See https://contribute.qt-project.org/quips/13 for some guidance around the Qt examples.