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Android: write appLog to file

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The trick is to pick a path that is accessible from other applications.
In theory QStandardPaths::GenericDataLocation should provide that.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2017-07-09 17:03:57 -07:00
parent e8b46039f6
commit c59a74029b
3 changed files with 47 additions and 2 deletions
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33
mobile-widgets/qmlmanager.cpp
View file

@ -90,6 +90,18 @@ QMLManager::QMLManager() : m_locationServiceEnabled(false),
m_instance = this;
m_lastDevicePixelRatio = qApp->devicePixelRatio();
connect(qobject_cast<QApplication *>(QApplication::instance()), &QApplication::applicationStateChanged, this, &QMLManager::applicationStateChanged);
#if defined(Q_OS_ANDROID)
appLogFileName = QStandardPaths::standardLocations(QStandardPaths::GenericDataLocation).first() + "/subsurface.log";
appLogFile.setFileName(appLogFileName);
if (!appLogFile.open(QIODevice::ReadWrite)) {
appLogFileOpen = false;
appendTextToLog("Failed to open logfile" + appLogFileName);
} else {
appLogFileOpen = true;
appendTextToLog("Successfully opened logfile" + appLogFileName);
}
#endif
appendTextToLog("Starting " + getUserAgent());
appendTextToLog(QStringLiteral("build with Qt Version %1, runtime from Qt Version %2").arg(QT_VERSION_STR).arg(qVersion()));
setStartPageText(tr("Starting..."));
@ -234,6 +246,10 @@ void QMLManager::finishSetup()
QMLManager::~QMLManager()
{
#if defined(Q_OS_ANDROID)
if (appLogFileOpen)
appLogFile.close();
#endif
m_instance = NULL;
}
@ -1530,6 +1546,23 @@ void QMLManager::setProgressMessage(QString text)
#if defined (Q_OS_ANDROID)
void writeToAppLogFile(QString logText)
{
// write to storage and flush so that the data doesn't get lost
logText.append("\n");
QMLManager *self = QMLManager::instance();
if (self) {
self->writeToAppLogFile(logText);
}
}
void QMLManager::writeToAppLogFile(QString logText)
{
if (appLogFileOpen) {
appLogFile.write(logText.toUtf8().data());
appLogFile.flush();
}
}
//HACK to color the system bar on Android, use qtandroidextras and call the appropriate Java methods
//this code is based on code in the Kirigami example app for Android (under LGPL-2) Copyright 2017 Marco Martin

8
mobile-widgets/qmlmanager.h
View file

@ -125,6 +125,9 @@ public:
bool showPin() const;
void setShowPin(bool enable);
Q_INVOKABLE void setStatusbarColor(QColor color);
#if defined(Q_OS_ANDROID)
void writeToAppLogFile(QString logText);
#endif
public slots:
void applicationStateChanged(Qt::ApplicationState state);
@ -208,6 +211,11 @@ private:
bool m_showPin;
DCDeviceData *m_device_data;
QString m_progressMessage;
#if defined(Q_OS_ANDROID)
QString appLogFileName;
QFile appLogFile;
bool appLogFileOpen;
#endif
signals:
void cloudUserNameChanged();

8
qt-models/messagehandlermodel.cpp
View file

@ -2,11 +2,12 @@
#include "messagehandlermodel.h"
/* based on logging bits from libdivecomputer */
#ifndef __ANDROID__
#if !defined(Q_OS_ANDROID)
#define INFO(fmt, ...) fprintf(stderr, "INFO: " fmt "\n", ##__VA_ARGS__)
#else
extern void writeToAppLogFile(QString logText);
#include <android/log.h>
#define INFO(fmt, ...) __android_log_print(ANDROID_LOG_DEBUG, __FILE__, "INFO: " fmt "\n", ##__VA_ARGS__)
#define INFO(fmt, ...) __android_log_print(ANDROID_LOG_DEBUG, __FILE__, "INFO: " fmt "\n", ##__VA_ARGS__);
#endif
void logMessageHandler(QtMsgType type, const QMessageLogContext &context, const QString &msg)
@ -42,6 +43,9 @@ void MessageHandlerModel::addLog(QtMsgType type, const QString& message)
m_data.append({message, type});
endInsertRows();
INFO("%s", message.toUtf8().constData());
#if defined (Q_OS_ANDROID)
writeToAppLogFile(message);
#endif
}
QVariant MessageHandlerModel::data(const QModelIndex& idx, int role) const