大家都知道通过Q_INVOKABLE可以让qml直接访问c++类的接口函数.
void outputMessage(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
static QMutex mutex;
mutex.lock();
QString text;
switch(type)
{
case QtDebugMsg:
text = QString("Debug:");
break;
case QtWarningMsg:
text = QString("Warning:");
break;
case QtCriticalMsg:
text = QString("Critical:");
break;
case QtFatalMsg:
text = QString("Fatal:");
}
QString message = "";
if (context.file != nullptr)
{
QString context_info = QString("File:(%1) Line:(%2)").arg(QString(context.file)).arg(context.line);
QString current_date_time = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss ddd");
QString current_date = QString("(%1)").arg(current_date_time);
message = QString("%1 %2 %3 %4").arg(text).arg(context_info).arg(msg).arg(current_date);
}
else
{
message = msg;
}
QFile file("log.txt");
file.open(QIODevice::WriteOnly | QIODevice::Append);
QTextStream text_stream(&file);
text_stream << message << "\r\n";
file.flush();
file.close();
mutex.unlock();
}
QmlLog4Qml::QmlLog4Qml()
{
qInstallMessageHandler(outputMessage);
}
void QmlLog4Qml::qDebug_Info(int type, QString strInfo)
{
QMessageLogContext context;
context.file = nullptr;
outputMessage((QtMsgType)type, context, strInfo);
}
show.jpg
需要完整代码请访问QtQuickExamples
