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diff --git a/examples/positioning/geoflickr/doc/images/qml-flickr-1.jpg b/examples/positioning/geoflickr/doc/images/qml-flickr-1.jpg Binary files differnew file mode 100644 index 00000000..42514ff0 --- /dev/null +++ b/examples/positioning/geoflickr/doc/images/qml-flickr-1.jpg diff --git a/examples/positioning/geoflickr/doc/src/geoflickr.qdoc b/examples/positioning/geoflickr/doc/src/geoflickr.qdoc new file mode 100644 index 00000000..6d043d4d --- /dev/null +++ b/examples/positioning/geoflickr/doc/src/geoflickr.qdoc @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:FDL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Free Documentation License Usage +** Alternatively, this file may be used under the terms of the GNU Free +** Documentation License version 1.3 as published by the Free Software +** Foundation and appearing in the file included in the packaging of +** this file. Please review the following information to ensure +** the GNU Free Documentation License version 1.3 requirements +** will be met: http://www.gnu.org/copyleft/fdl.html. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example geoflickr + \title GeoFlickr (QML) + \ingroup qtpositioning-examples + + \brief The GeoFlickr example shows how to use the user's current position to + fetch local content from a web service. + + This is a small example, illustrating one of the very core parts of the + \l{Qt Positioning} API: the ability to retrieve and use the user's current + geographic position. + + Key QML types shown in this example: + \list + \li \l{QtPositioning::PositionSource}{PositionSource} + \li \l{XmlListModel}{XmlListModel} + \endlist + + \image qml-flickr-1.jpg + + \include examples-run.qdocinc + + \section1 Retrieving the Current Position + + Retrieving the user's current position is achieved using the PositionSource + type. In this example, we instantiate the PositionSource as part of the + GeoTab component (the floating "window" describing current position and + status). + + \snippet geoflickr/flickrmobile/GeoTab.qml possrc + + When the "Locate and update" button is pressed, we first interrogate the + PositionSource to check if it has an available backend for positioning + data. If it does not, we fall back to using a pre-recorded NMEA log + for demonstration. We then instruct the PositionSource to update. + + \snippet geoflickr/flickrmobile/GeoTab.qml locatebutton-top + \snippet geoflickr/flickrmobile/GeoTab.qml locatebutton-clicked + + To share the new position data with the rest of the application, we use + properties that we have created on the GeoTab component: + + \snippet geoflickr/flickrmobile/GeoTab.qml props + + \section1 Using the Current Position + + The longitude and latitude values retrieved here are eventually set on + in properties on the RestModel component. The RestModel is an XmlListModel, + which retrieves XML data from a URL and creates a data model by performing + XPath queries on it. + + In this case, it retrieves data from the Flickr REST API online, based on + our current position + + \snippet geoflickr/flickrcommon/RestModel.qml restmodel + + This model data is then shown in a variety of Qt Quick views to produce + the example application. + +*/ |