我正在使用 qt android 5.1.1
即使我将传感器添加到专业文件中,我也有问题是什么问题。
感谢您的任何评论。我的问题是:
../sensor_test/mainwindow.cpp:9: 错误:未定义引用 'QAccelerometer::QAccelerometer(QObject*)' ../sensor_test/mainwindow.cpp:19: 错误:未定义引用 'QSensor::QSensor(QByteArray const& , QObject*)' ../sensor_test/mainwindow.cpp:20: error: undefined reference to 'QSensor::start()' ../sensor_test/mainwindow.cpp:21: error: undefined reference to 'QSensor::reading () const' Makefile:146: 目标'libsensor_test.so'的配方失败../sensor_test/mainwindow.cpp:22: 错误: 未定义引用'QSensor::~QSensor()' ../sensor_test/mainwindow.cpp :22: 错误: 未定义引用 'QSensor::~QSensor()' collect2.exe: 错误: ld 返回 1 退出状态
我的简历:
#-------------------------------------------------
#
# Project created by QtCreator 2013-08-30T14:44:53
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = sensor_test
TEMPLATE = app
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
CONFIG += mobility
MOBILITY += sensors
OTHER_FILES += \
android/AndroidManifest.xml \
android/res/layout/splash.xml \
android/res/values/libs.xml \
android/res/values/strings.xml \
android/res/values-de/strings.xml \
android/res/values-el/strings.xml \
android/res/values-es/strings.xml \
android/res/values-et/strings.xml \
android/res/values-fa/strings.xml \
android/res/values-fr/strings.xml \
android/res/values-id/strings.xml \
android/res/values-it/strings.xml \
android/res/values-ja/strings.xml \
android/res/values-ms/strings.xml \
android/res/values-nb/strings.xml \
android/res/values-nl/strings.xml \
android/res/values-pl/strings.xml \
android/res/values-pt-rBR/strings.xml \
android/res/values-ro/strings.xml \
android/res/values-rs/strings.xml \
android/res/values-ru/strings.xml \
android/res/values-zh-rCN/strings.xml \
android/res/values-zh-rTW/strings.xml \
android/src/org/kde/necessitas/ministro/IMinistro.aidl \
android/src/org/kde/necessitas/ministro/IMinistroCallback.aidl \
android/src/org/qtproject/qt5/android/bindings/QtActivity.java \
android/src/org/qtproject/qt5/android/bindings/QtApplication.java \
android/version.xml
我的代码是:
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ac=new QAccelerometer(this);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_clicked()
{
QSensor sensor("QAccelerometer");
sensor.start();
QSensorReading *read=sensor.reading();
ui->lineEdit->setText(read->property("x").value<QString>());
}