<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>poster.qml Example File | Qt NFC 5.12.6</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtnfc-index.html">Qt NFC</a></td><td ><a href="qtnfc-poster-example.html">QML Poster Example</a></td><td >poster.qml Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtnfc-index.html">Qt 5.12.6 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">poster.qml Example File</h1> <span class="subtitle">poster/poster.qml</span> <!-- $$$poster/poster.qml-description --> <div class="descr"> <a name="details"></a> <pre class="qml"> /**************************************************************************** ** ** Copyright (C) 2017 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtNfc module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.3 import QtNfc 5.5 Rectangle { id: root width: 640 height: 360 NearField { id: nearfield property bool requiresManualPolling: false onPollingChanged: { if (!polling && requiresManualPolling) polling = true; //restart polling } Component.onCompleted: { if (!polling) { requiresManualPolling = true; polling = true; } } filter: [ NdefFilter { type: "U"; typeNameFormat: NdefRecord.NfcRtd; maximum: 1 }, NdefFilter { type: "T"; typeNameFormat: NdefRecord.NfcRtd }, NdefFilter { typeNameFormat: NdefRecord.Mime; minimum: 0; maximum: 1 } ] onMessageRecordsChanged: { posterText.text = ""; posterImage.source = ""; posterUrl.text = ""; var currentLocaleMatch = NdefTextRecord.LocaleMatchedNone; var i; var found = false; for (i = 0; i < messageRecords.length; ++i) { switch (messageRecords[i].typeNameFormat) { case NdefRecord.NfcRtd: if (messageRecords[i].type === "T") { if (messageRecords[i].localeMatch > currentLocaleMatch) { currentLocaleMatch = messageRecords[i].localeMatch; posterText.text = messageRecords[i].text; found = true; } } else if (messageRecords[i].type === "U") { posterUrl.text = messageRecords[i].uri; found = true; } break; case NdefRecord.Mime: if (messageRecords[i].type.indexOf("image/") === 0 ) { posterImage.source = messageRecords[i].uri; found = true; } break; } if (!found) console.warn("Unknown NFC tag detected. Cannot display content.") } root.state = "show"; } } Text { id: touchText anchors { horizontalCenter: parent.horizontalCenter; horizontalCenterOffset: parent.verticalCenter } text: "Touch an NFC tag with at least one Text and one URI record." font { italic: true; pointSize: 18 } wrapMode: Text.WordWrap width: root.width*0.75 horizontalAlignment: Text.AlignHCenter } Image { id: posterImage scale: Image.PreserveAspectFit height: parent.height * 0.8 width: height * sourceSize.width / sourceSize.height anchors.verticalCenter: parent.verticalCenter x: -width smooth: true } Text { id: posterText y: -height anchors { horizontalCenter: parent.right; horizontalCenterOffset: - parent.width / 4 } font { italic: true; pointSize: 18 } } Text { id: posterUrl y: parent.height anchors { horizontalCenter: parent.right; horizontalCenterOffset: - parent.width / 4 } font { italic: true; pointSize: 14 } } MouseArea { id: openMouseArea anchors.fill: parent enabled: root.state == "show" onClicked: Qt.openUrlExternally(posterUrl.text) Rectangle { id: testTouch width: 50 height: 50 color: "lightsteelblue" opacity: 0.3 anchors { top: parent.top; right: close.left; rightMargin: 10 } MouseArea { id: touchMouseArea anchors.fill: parent onClicked: { if (root.state == "") { root.state = "show"; } else { root.state = ""; } } } } Rectangle { id: close width: 50 height: 50 color: "black" radius: 0 opacity: 0.3 anchors { top: parent.top; topMargin: 0; right: parent.right; rightMargin: 0 } MouseArea { id: closeMouseArea anchors.fill: parent onClicked: Qt.quit(); } } } states: State { name: "show" PropertyChanges { target: posterText; y: root.height / 3 } PropertyChanges { target: posterUrl; y: 2 * root.height / 3 } PropertyChanges { target: posterImage; x: root.width / 20 } PropertyChanges { target: touchText; opacity: 0 } } transitions: Transition { PropertyAnimation { easing.type: Easing.OutQuad; properties: "x,y" } PropertyAnimation { property: "opacity"; duration: 125 } } } </pre> </div> <!-- @@@poster/poster.qml --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. 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