Hi, All, I have a project need to use the Accelerometer in MeeGo Tablet OS, I run the qt mobility example "accel" in ExoPC with MeeGo tablet 1.2 pre-alpha OS, but it shows the error message tell me "Accelerometer didn't start!", and tracing the code obviously the accelerometer didn't start normally, please tell me how can I start the accelerometer in MeeGo successfully, is there any settings that I need to set?
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accel.pro
Description: accel.pro
/**************************************************************************** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation ([email protected]) ** ** This file is part of the Qt Mobility Components. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 Nokia Corporation and its Subsidiary(-ies) 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." ** $QT_END_LICENSE$ ** ****************************************************************************/ #include <QtCore> #include <qaccelerometer.h> QTM_USE_NAMESPACE QAccelerometer *accelerometer; class AccelerometerFilter : public QAccelerometerFilter { public: bool filter(QAccelerometerReading *reading) { qDebug() << "acceleration: " << QString().sprintf("%0.2f %0.2f %0.2f", reading->x(), reading->y(), reading->z()); return false; // don't store the reading in the sensor } }; int main(int argc, char **argv) { QCoreApplication app(argc, argv); QAccelerometer sensor; accelerometer = &sensor; AccelerometerFilter filter; sensor.addFilter(&filter); sensor.start(); if (!sensor.isActive()) { qWarning("Accelerometer didn't start!"); return 1; } return app.exec(); }
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