Android port

.appveyor.yml

@@ -1,4 +1,4 @@
-version: 10.8.{build}
+version: 11.0.{build}
 
 configuration:
   - Release

gpxsee.pro

@@ -1,9 +1,9 @@
-unix:!macx {
+unix:!macx:!android {
     TARGET = gpxsee
 } else {
     TARGET = GPXSee
 }
-VERSION = 10.8
+VERSION = 11.0
 
 QT += core \
     gui \
@@ -13,7 +13,8 @@ QT += core \
     concurrent \
     widgets \
     printsupport \
-    positioning
+    positioning \
+    svg
 greaterThan(QT_MAJOR_VERSION, 5) {
     QT += openglwidgets \
           core5compat
@@ -24,6 +25,7 @@ INCLUDEPATH += ./src
 HEADERS += src/common/config.h \
     src/GUI/crosshairitem.h \
     src/GUI/motioninfoitem.h \
+    src/GUI/navigationwidget.h \
     src/GUI/pluginparameters.h \
     src/common/garmin.h \
     src/common/coordinates.h \
@@ -246,6 +248,7 @@ HEADERS += src/common/config.h \
 SOURCES += src/main.cpp \
     src/GUI/crosshairitem.cpp \
     src/GUI/motioninfoitem.cpp \
+    src/GUI/navigationwidget.cpp \
     src/GUI/pluginparameters.cpp \
     src/common/coordinates.cpp \
     src/common/rectc.cpp \
@@ -504,7 +507,7 @@ win32 {
         NOGDI
 }
 
-unix:!macx {
+unix:!macx:!android {
     isEmpty(PREFIX):PREFIX = /usr/local
 
     maps.files = $$files(pkg/maps/*)
@@ -524,3 +527,39 @@ unix:!macx {
     target.path = $$PREFIX/bin
     INSTALLS += target maps csv symbols locale icon desktop mime
 }
+
+android {
+    defineReplace(versionCode) {
+        segments = $$split(1, ".")
+        for (segment, segments): \
+            vCode = "$$first(vCode)$$format_number($$segment, width=3 zeropad)"
+        contains(ANDROID_TARGET_ARCH, armeabi-v7a): \
+            suffix = 0
+        contains(ANDROID_TARGET_ARCH, arm64-v8a): \
+            suffix = 1
+        contains(ANDROID_TARGET_ARCH, x86): \
+            suffix = 2
+        contains(ANDROID_TARGET_ARCH, x86_64): \
+            suffix = 3
+
+        return($$first(vCode)$$first(suffix))
+    }
+
+    include($$OPENSSL_PATH/openssl.pri)
+
+    ANDROID_VERSION_NAME = $$VERSION
+    ANDROID_VERSION_CODE = $$versionCode($$ANDROID_VERSION_NAME)
+    ANDROID_PACKAGE_SOURCE_DIR = $$PWD/pkg/android
+    DISTFILES += \
+        pkg/android/AndroidManifest.xml \
+        pkg/android/build.gradle \
+        pkg/android/res/values/libs.xml
+
+    maps.files = $$files(pkg/maps/*)
+    maps.path = /assets/maps
+    csv.files = $$files(pkg/csv/*)
+    csv.path = /assets/csv
+    symbols.files = $$files(icons/symbols/*.png)
+    symbols.path = /assets/symbols
+    INSTALLS += maps csv symbols
+}

pkg/android/AndroidManifest.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="org.gpxsee.gpxsee" android:installLocation="auto" android:versionCode="-- %%INSERT_VERSION_CODE%% --" android:versionName="-- %%INSERT_VERSION_NAME%% --">
+    <!-- %%INSERT_PERMISSIONS -->
+    <!-- %%INSERT_FEATURES -->
+    <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:smallScreens="true"/>
+    <application android:name="org.qtproject.qt.android.bindings.QtApplication" android:extractNativeLibs="true" android:hardwareAccelerated="true" android:label="-- %%INSERT_APP_NAME%% --" android:requestLegacyExternalStorage="true" android:allowNativeHeapPointerTagging="false" android:icon="@drawable/icon">
+        <activity android:name="org.qtproject.qt.android.bindings.QtActivity" android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density" android:label="-- %%INSERT_APP_NAME%% --" android:launchMode="singleTop" android:screenOrientation="unspecified">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+            <meta-data android:name="android.app.lib_name" android:value="-- %%INSERT_APP_LIB_NAME%% --"/>
+            <meta-data android:name="android.app.arguments" android:value="-- %%INSERT_APP_ARGUMENTS%% --"/>
+            <meta-data android:name="android.app.extract_android_style" android:value="minimal"/>
+        </activity>
+    </application>
+
+</manifest>

pkg/android/build.gradle

@@ -0,0 +1,78 @@
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.0.2'
+    }
+}
+
+repositories {
+    google()
+    mavenCentral()
+}
+
+apply plugin: 'com.android.application'
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
+}
+
+android {
+    /*******************************************************
+     * The following variables:
+     * - androidBuildToolsVersion,
+     * - androidCompileSdkVersion
+     * - qtAndroidDir - holds the path to qt android files
+     *                   needed to build any Qt application
+     *                   on Android.
+     *
+     * are defined in gradle.properties file. This file is
+     * updated by QtCreator and androiddeployqt tools.
+     * Changing them manually might break the compilation!
+     *******************************************************/
+
+    compileSdkVersion androidCompileSdkVersion.toInteger()
+    buildToolsVersion androidBuildToolsVersion
+    ndkVersion androidNdkVersion
+
+    sourceSets {
+        main {
+            manifest.srcFile 'AndroidManifest.xml'
+            java.srcDirs = [qtAndroidDir + '/src', 'src', 'java']
+            aidl.srcDirs = [qtAndroidDir + '/src', 'src', 'aidl']
+            res.srcDirs = [qtAndroidDir + '/res', 'res']
+            resources.srcDirs = ['resources']
+            renderscript.srcDirs = ['src']
+            assets.srcDirs = ['assets']
+            jniLibs.srcDirs = ['libs']
+       }
+    }
+
+    tasks.withType(JavaCompile) {
+        options.incremental = true
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+
+    // Do not compress Qt binary resources file
+    aaptOptions {
+        noCompress 'rcc'
+    }
+
+    defaultConfig {
+        resConfig "en"
+        minSdkVersion qtMinSdkVersion
+        targetSdkVersion qtTargetSdkVersion
+        ndk.abiFilters = qtTargetAbiList.split(",")
+    }
+}

pkg/android/gradle.properties

@@ -0,0 +1,14 @@
+# Project-wide Gradle settings.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2500m -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# Enable building projects in parallel
+org.gradle.parallel=true
+
+# Gradle caching allows reusing the build artifacts from a previous
+# build with the same inputs. However, over time, the cache size will
+# grow. Uncomment the following line to enable it.
+#org.gradle.caching=true

pkg/android/res/values/libs.xml

@@ -0,0 +1,20 @@
+<?xml version='1.0' encoding='utf-8'?>
+<resources>
+    <!-- DO NOT EDIT THIS: This file is populated automatically by the deployment tool. -->
+
+    <array name="bundled_libs">
+        <!-- %%INSERT_EXTRA_LIBS%% -->
+    </array>
+
+    <array name="qt_libs">
+        <!-- %%INSERT_QT_LIBS%% -->
+    </array>
+
+    <array name="load_local_libs">
+        <!-- %%INSERT_LOCAL_LIBS%% -->
+    </array>
+
+    <string name="static_init_classes"><!-- %%INSERT_INIT_CLASSES%% --></string>
+    <string name="use_local_qt_libs"><!-- %%USE_LOCAL_QT_LIBS%% --></string>
+    <string name="bundle_local_qt_libs"><!-- %%BUNDLE_LOCAL_QT_LIBS%% --></string>
+</resources>

pkg/gpxsee64.nsi

@@ -37,7 +37,7 @@ Unicode true
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "10.8"
+!define VERSION "11.0"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"

src/GUI/app.cpp

@@ -61,6 +61,10 @@ App::App(int &argc, char **argv) : QApplication(argc, argv)
 	Waypoint::loadSymbolIcons(ProgramPaths::symbolsDir());
 
 	_gui = new GUI();
+
+#ifdef Q_OS_ANDROID
+	connect(this, &App::applicationStateChanged, this, &App::appStateChanged);
+#endif // Q_OS_ANDROID
 }
 
 App::~App()
@@ -93,6 +97,14 @@ int App::run()
 	return exec();
 }
 
+#ifdef Q_OS_ANDROID
+void App::appStateChanged(Qt::ApplicationState state)
+{
+	if (state == Qt::ApplicationSuspended)
+		_gui->writeSettings();
+}
+#endif // Q_OS_ANDROID
+
 bool App::event(QEvent *event)
 {
 	if (event->type() == QEvent::FileOpen) {

src/GUI/app.h

@@ -5,7 +5,7 @@
 
 class GUI;
 
-class App : QApplication
+class App : public QApplication
 {
 	Q_OBJECT
 
@@ -17,6 +17,11 @@ public:
 protected:
 	bool event(QEvent *event);
 
+#ifdef Q_OS_ANDROID
+private slots:
+	void appStateChanged(Qt::ApplicationState state);
+#endif // Q_OS_ANDROID
+
 private:
 	void loadDatums();
 	void loadPCSs();

src/GUI/cadencegraph.cpp

@@ -24,10 +24,17 @@ void CadenceGraph::setInfo()
 	if (_showTracks) {
 		QLocale l(QLocale::system());
 
+#ifdef Q_OS_ANDROID
+		GraphView::addInfo(tr("Avg"), l.toString(avg() * yScale() + yOffset(),
+		  'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Max"), l.toString(max() * yScale() + yOffset(),
+		  'f', 1) + UNIT_SPACE + yUnits());
+#else // Q_OS_ANDROID
 		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale()
 		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale()
 		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
+#endif // Q_OS_ANDROID
 	} else
 		clearInfo();
 }

src/GUI/colorbox.cpp

@@ -52,8 +52,7 @@ void ColorBox::paintEvent(QPaintEvent *event)
 
 void ColorBox::mousePressEvent(QMouseEvent *event)
 {
-	if (event->button() != Qt::LeftButton)
-		return;
+	if (event->button() == Qt::LeftButton) {
 		QColorDialog::ColorDialogOptions options = _alpha
 		  ? QColorDialog::ColorDialogOptions(QColorDialog::ShowAlphaChannel)
 		  : QColorDialog::ColorDialogOptions();
@@ -65,6 +64,9 @@ void ColorBox::mousePressEvent(QMouseEvent *event)
 		}
 	}
 
+	QWidget::mousePressEvent(event);
+}
+
 void ColorBox::setColor(const QColor &color)
 {
 	_color = color;

src/GUI/dirselectwidget.cpp

@@ -9,10 +9,12 @@
 
 DirSelectWidget::DirSelectWidget(QWidget *parent) : QWidget(parent)
 {
-	QFontMetrics fm(QApplication::font());
 	_edit = new QLineEdit();
+#ifndef Q_OS_ANDROID
+	QFontMetrics fm(QApplication::font());
 	_edit->setMinimumWidth(fm.averageCharWidth() * (QDir::homePath().length()
 	  + 12));
+#endif // Q_OS_ANDROID
 	_edit->setPlaceholderText(tr("System default"));
 #ifdef Q_OS_WIN32
 	_button = new QPushButton("...");

src/GUI/elevationgraph.cpp

@@ -54,6 +54,16 @@ void ElevationGraph::setInfo()
 	else {
 		QLocale l(QLocale::system());
 
+#ifdef Q_OS_ANDROID
+		GraphView::addInfo(tr("Up"), l.toString(ascent() * yScale(), 'f', 0)
+		  + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Down"), l.toString(descent() * yScale(), 'f', 0)
+		  + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Max"), l.toString(max() * yScale(), 'f', 0)
+		  + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Min"), l.toString(min() * yScale(), 'f', 0)
+		  + UNIT_SPACE + yUnits());
+#else // Q_OS_ANDROID
 		GraphView::addInfo(tr("Ascent"), l.toString(ascent() * yScale(),
 		  'f', 0) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Descent"), l.toString(descent() * yScale(),
@@ -62,6 +72,7 @@ void ElevationGraph::setInfo()
 		  0) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Minimum"), l.toString(min() * yScale(), 'f',
 		  0) + UNIT_SPACE + yUnits());
+#endif // Q_OS_ANDROID
 	}
 }
 

src/GUI/filebrowser.cpp

@@ -5,14 +5,25 @@
 
 FileBrowser::FileBrowser(QObject *parent) : QObject(parent)
 {
+#ifndef Q_OS_ANDROID
 	_watcher = new QFileSystemWatcher(this);
-
 	connect(_watcher, &QFileSystemWatcher::directoryChanged, this,
 	  &FileBrowser::reloadDirectory);
+#endif // Q_OS_ANDROID
 
 	_index = -1;
 }
 
+#ifdef Q_OS_ANDROID
+void FileBrowser::setCurrentDir(const QString &path)
+{
+	QDir dir(path);
+	_files = dir.entryInfoList(_filter, QDir::Files);
+	_index = _files.empty() ? -1 : 0;
+
+	emit listChanged();
+}
+#else // Q_OS_ANDROID
 void FileBrowser::setCurrent(const QString &path)
 {
 	QFileInfo file(path);
@@ -28,6 +39,7 @@ void FileBrowser::setCurrent(const QString &path)
 
 	_index = _files.empty() ? -1 : _files.indexOf(file);
 }
+#endif // Q_OS_ANDROID
 
 void FileBrowser::setFilter(const QStringList &filter)
 {
@@ -46,6 +58,11 @@ bool FileBrowser::isFirst() const
 	return (_files.size() > 0 && _index == 0);
 }
 
+QString FileBrowser::current()
+{
+	return (_index >= 0) ? _files.at(_index).absoluteFilePath() : QString();
+}
+
 QString FileBrowser::next()
 {
 	if (_index < 0 || _index == _files.size() - 1)

src/GUI/filebrowser.h

@@ -14,9 +14,14 @@ class FileBrowser : public QObject
 public:
 	FileBrowser(QObject *parent = 0);
 
-	void setFilter(const QStringList &filter);
+#ifdef Q_OS_ANDROID
+	void setCurrentDir(const QString &path);
+#else // Q_OS_ANDROID
 	void setCurrent(const QString &path);
+#endif // Q_OS_ANDROID
+	void setFilter(const QStringList &filter);
 
+	QString current();
 	QString next();
 	QString prev();
 	QString last();
@@ -32,7 +37,9 @@ private slots:
 	void reloadDirectory(const QString &path);
 
 private:
+#ifndef Q_OS_ANDROID
 	QFileSystemWatcher *_watcher;
+#endif // Q_OS_ANDROID
 	QStringList _filter;
 	QFileInfoList _files;
 	int _index;

src/GUI/fileselectwidget.cpp

@@ -10,10 +10,12 @@
 
 FileSelectWidget::FileSelectWidget(QWidget *parent) : QWidget(parent)
 {
-	QFontMetrics fm(QApplication::font());
 	_edit = new QLineEdit();
+#ifndef Q_OS_ANDROID
+	QFontMetrics fm(QApplication::font());
 	_edit->setMinimumWidth(fm.averageCharWidth() * (QDir::homePath().length()
 	  + 12));
+#endif // Q_OS_ANDROID
 #ifdef Q_OS_WIN32
 	_button = new QPushButton("...");
 	_button->setMaximumWidth(_button->sizeHint().width() / 2);

src/GUI/gearratiograph.cpp

@@ -24,12 +24,21 @@ void GearRatioGraph::setInfo()
 	if (_showTracks) {
 		QLocale l(QLocale::system());
 
+#ifdef Q_OS_ANDROID
+		GraphView::addInfo(tr("Top"), l.toString(top() * yScale(), 'f', 2)
+		  + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Min"), l.toString(min() * yScale(), 'f', 2)
+		  + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Max"), l.toString(max() * yScale(), 'f', 2)
+		  + UNIT_SPACE + yUnits());
+#else // Q_OS_ANDROID
 		GraphView::addInfo(tr("Most used"), l.toString(top() * yScale(),
 		  'f', 2) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Minimum"), l.toString(min() * yScale(), 'f',
 		  2) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale(), 'f',
 		  2) + UNIT_SPACE + yUnits());
+#endif // Q_OS_ANDROID
 	} else
 		clearInfo();
 }

src/GUI/gui.cpp

@@ -53,6 +53,7 @@
 #include "mapitem.h"
 #include "mapaction.h"
 #include "poiaction.h"
+#include "navigationwidget.h"
 #include "gui.h"
 
 
@@ -72,7 +73,11 @@ GUI::GUI()
 	createStatusBar();
 	createActions();
 	createMenus();
+#ifdef Q_OS_ANDROID
+	createNavigation();
+#else // Q_OS_ANDROID
 	createToolBars();
+#endif // Q_OS_ANDROID
 	createBrowser();
 
 	_splitter = new QSplitter();
@@ -83,6 +88,7 @@ GUI::GUI()
 	_splitter->setContentsMargins(0, 0, 0, 0);
 	_splitter->setStretchFactor(0, 255);
 	_splitter->setStretchFactor(1, 1);
+
 	setCentralWidget(_splitter);
 
 	setWindowIcon(QIcon(APP_ICON));
@@ -181,19 +187,23 @@ void GUI::createActions()
 	_navigationActionGroup->setEnabled(false);
 
 	// General actions
+#if !defined(Q_OS_MAC) && !defined(Q_OS_ANDROID)
 	_exitAction = new QAction(QIcon(QUIT_ICON), tr("Quit"), this);
 	_exitAction->setShortcut(QUIT_SHORTCUT);
 	_exitAction->setMenuRole(QAction::QuitRole);
 	connect(_exitAction, &QAction::triggered, this, &GUI::close);
 	addAction(_exitAction);
+#endif // Q_OS_MAC + Q_OS_ANDROID
 
 	// Help & About
 	_pathsAction = new QAction(tr("Paths"), this);
 	_pathsAction->setMenuRole(QAction::NoRole);
 	connect(_pathsAction, &QAction::triggered, this, &GUI::paths);
+#ifndef Q_OS_ANDROID
 	_keysAction = new QAction(tr("Keyboard controls"), this);
 	_keysAction->setMenuRole(QAction::NoRole);
 	connect(_keysAction, &QAction::triggered, this, &GUI::keys);
+#endif // Q_OS_ANDROID
 	_aboutAction = new QAction(QIcon(APP_ICON), tr("About GPXSee"), this);
 	_aboutAction->setMenuRole(QAction::AboutRole);
 	connect(_aboutAction, &QAction::triggered, this, &GUI::about);
@@ -205,6 +215,12 @@ void GUI::createActions()
 	connect(_openFileAction, &QAction::triggered, this,
 	  QOverload<>::of(&GUI::openFile));
 	addAction(_openFileAction);
+#ifdef Q_OS_ANDROID
+	_openDirAction = new QAction(QIcon(OPEN_FILE_ICON), tr("Open directory..."),
+	  this);
+	_openDirAction->setMenuRole(QAction::NoRole);
+	connect(_openDirAction, &QAction::triggered, this, &GUI::openDir);
+#endif // Q_OS_ANDROID
 	_printFileAction = new QAction(QIcon(PRINT_FILE_ICON), tr("Print..."),
 	  this);
 	_printFileAction->setMenuRole(QAction::NoRole);
@@ -459,10 +475,12 @@ void GUI::createActions()
 	  &GUI::showGraphSliderInfo);
 
 	// Settings actions
+#ifndef Q_OS_ANDROID
 	_showToolbarsAction = new QAction(tr("Show toolbars"), this);
 	_showToolbarsAction->setMenuRole(QAction::NoRole);
 	_showToolbarsAction->setCheckable(true);
 	connect(_showToolbarsAction, &QAction::triggered, this, &GUI::showToolbars);
+#endif // Q_OS_ANDROID
 	ag = new QActionGroup(this);
 	ag->setExclusive(true);
 	_totalTimeAction = new QAction(tr("Total time"), this);
@@ -514,6 +532,7 @@ void GUI::createActions()
 	_dmsAction->setCheckable(true);
 	_dmsAction->setActionGroup(ag);
 	connect(_dmsAction, &QAction::triggered, this, &GUI::setDMS);
+#ifndef Q_OS_ANDROID
 	_fullscreenAction = new QAction(QIcon(FULLSCREEN_ICON),
 	  tr("Fullscreen mode"), this);
 	_fullscreenAction->setMenuRole(QAction::NoRole);
@@ -521,11 +540,13 @@ void GUI::createActions()
 	_fullscreenAction->setShortcut(FULLSCREEN_SHORTCUT);
 	connect(_fullscreenAction, &QAction::triggered, this, &GUI::showFullscreen);
 	addAction(_fullscreenAction);
+#endif // Q_OS_ANDROID
 	_openOptionsAction = new QAction(tr("Options..."), this);
 	_openOptionsAction->setMenuRole(QAction::PreferencesRole);
 	connect(_openOptionsAction, &QAction::triggered, this, &GUI::openOptions);
 
 	// Navigation actions
+#ifndef Q_OS_ANDROID
 	_nextAction = new QAction(QIcon(NEXT_FILE_ICON), tr("Next"), this);
 	_nextAction->setActionGroup(_navigationActionGroup);
 	_nextAction->setMenuRole(QAction::NoRole);
@@ -542,6 +563,7 @@ void GUI::createActions()
 	_firstAction->setMenuRole(QAction::NoRole);
 	_firstAction->setActionGroup(_navigationActionGroup);
 	connect(_firstAction, &QAction::triggered, this, &GUI::first);
+#endif // Q_OS_ANDROID
 }
 
 void GUI::createMapNodeMenu(const TreeNode<MapAction*> &node, QMenu *menu,
@@ -574,8 +596,13 @@ void GUI::createMenus()
 {
 	QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
 	fileMenu->addAction(_openFileAction);
+#ifdef Q_OS_ANDROID
+	fileMenu->addAction(_openDirAction);
+#endif // Q_OS_ANDROID
 	fileMenu->addSeparator();
+#ifndef Q_OS_ANDROID
 	fileMenu->addAction(_printFileAction);
+#endif // Q_OS_ANDROID
 	fileMenu->addAction(_exportPDFFileAction);
 	fileMenu->addAction(_exportPNGFileAction);
 	fileMenu->addSeparator();
@@ -583,10 +610,10 @@ void GUI::createMenus()
 	fileMenu->addSeparator();
 	fileMenu->addAction(_reloadFileAction);
 	fileMenu->addAction(_closeFileAction);
-#ifndef Q_OS_MAC
+#if !defined(Q_OS_MAC) && !defined(Q_OS_ANDROID)
 	fileMenu->addSeparator();
 	fileMenu->addAction(_exitAction);
-#endif // Q_OS_MAC
+#endif // Q_OS_MAC + Q_OS_ANDROID
 
 	_mapMenu = menuBar()->addMenu(tr("&Map"));
 	_mapsEnd = _mapMenu->addSeparator();
@@ -659,18 +686,31 @@ void GUI::createMenus()
 	coordinatesMenu->addAction(_degreesMinutesAction);
 	coordinatesMenu->addAction(_dmsAction);
 	settingsMenu->addSeparator();
+#ifndef Q_OS_ANDROID
 	settingsMenu->addAction(_showToolbarsAction);
 	settingsMenu->addAction(_fullscreenAction);
 	settingsMenu->addSeparator();
+#endif // Q_OS_ANDROID
 	settingsMenu->addAction(_openOptionsAction);
 
 	QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
 	helpMenu->addAction(_pathsAction);
+#ifndef Q_OS_ANDROID
 	helpMenu->addAction(_keysAction);
+#endif // Q_OS_ANDROID
 	helpMenu->addSeparator();
 	helpMenu->addAction(_aboutAction);
 }
 
+#ifdef Q_OS_ANDROID
+void GUI::createNavigation()
+{
+	_navigation = new NavigationWidget(_mapView);
+
+	connect(_navigation, &NavigationWidget::next, this, &GUI::next);
+	connect(_navigation, &NavigationWidget::prev, this, &GUI::prev);
+}
+#else // Q_OS_ANDROID
 void GUI::createToolBars()
 {
 	int is = style()->pixelMetric(QStyle::PM_ToolBarIconSize);
@@ -706,6 +746,7 @@ void GUI::createToolBars()
 	_navigationToolBar->addAction(_nextAction);
 	_navigationToolBar->addAction(_lastAction);
 }
+#endif // Q_OS_ANDROID
 
 void GUI::createMapView()
 {
@@ -713,7 +754,11 @@ void GUI::createMapView()
 	_mapView = new MapView(_map, _poi, 0, this);
 	_mapView->setSizePolicy(QSizePolicy(QSizePolicy::Ignored,
 	  QSizePolicy::Expanding));
+#ifdef Q_OS_ANDROID
+	_mapView->setMinimumHeight(100);
+#else // Q_OS_ANDROID
 	_mapView->setMinimumHeight(200);
+#endif // Q_OS_ANDROID
 #ifdef Q_OS_WIN32
 	_mapView->setFrameShape(QFrame::NoFrame);
 #endif // Q_OS_WIN32
@@ -765,7 +810,16 @@ void GUI::about()
 	QUrl homepage(APP_HOMEPAGE);
 
 	msgBox.setWindowTitle(tr("About GPXSee"));
-	msgBox.setText("<h2>" + QString(APP_NAME) + "</h2><p><p>" + tr("Version %1")
+#ifdef Q_OS_ANDROID
+	msgBox.setText("<h2>" + QString(APP_NAME) + "</h2><p>" + tr("Version %1")
+	  .arg(QString(APP_VERSION) + " (" + QSysInfo::buildCpuArchitecture()
+	  + ", Qt " + QT_VERSION_STR + ")") + "</p><p>"
+	  + tr("GPXSee is distributed under the terms of the GNU General Public "
+	  "License version 3. For more info about GPXSee visit the project "
+	  "homepage at %1.").arg("<a href=\"" + homepage.toString() + "\">"
+	  + homepage.toString(QUrl::RemoveScheme).mid(2) + "</a>") + "</p>");
+#else // Q_OS_ANDROID
+	msgBox.setText("<h2>" + QString(APP_NAME) + "</h2><p>" + tr("Version %1")
 	  .arg(QString(APP_VERSION) + " (" + QSysInfo::buildCpuArchitecture()
 	  + ", Qt " + QT_VERSION_STR + ")") + "</p>");
 	msgBox.setInformativeText("<table width=\"300\"><tr><td>"
@@ -778,10 +832,12 @@ void GUI::about()
 	QIcon icon = msgBox.windowIcon();
 	QSize size = icon.actualSize(QSize(64, 64));
 	msgBox.setIconPixmap(icon.pixmap(size));
+#endif // Q_OS_ANDROID
 
 	msgBox.exec();
 }
 
+#ifndef Q_OS_ANDROID
 void GUI::keys()
 {
 	QMessageBox msgBox(this);
@@ -820,12 +876,30 @@ void GUI::keys()
 
 	msgBox.exec();
 }
+#endif // Q_OS_ANDROID
 
 void GUI::paths()
 {
 	QMessageBox msgBox(this);
 
 	msgBox.setWindowTitle(tr("Paths"));
+#ifdef Q_OS_ANDROID
+	msgBox.setText(
+	  + "<small><b>" + tr("Map directory:") + "</b><br>"
+	  + QDir::cleanPath(ProgramPaths::mapDir(true))	+ "<br><br><b>"
+	  + tr("POI directory:") + "</b><br>"
+	  + QDir::cleanPath(ProgramPaths::poiDir(true)) + "<br><br><b>"
+	  + tr("GCS/PCS directory:") + "</b><br>"
+	  + QDir::cleanPath(ProgramPaths::csvDir(true)) + "<br><br><b>"
+	  + tr("DEM directory:") + "</b><br>"
+	  + QDir::cleanPath(ProgramPaths::demDir(true)) + "<br><br><b>"
+	  + tr("Styles directory:") + "</b><br>"
+	  + QDir::cleanPath(ProgramPaths::styleDir(true)) + "<br><br><b>"
+	  + tr("Symbols directory:") + "</b><br>"
+	  + QDir::cleanPath(ProgramPaths::symbolsDir(true)) + "<br><br><b>"
+	  + tr("Tile cache directory:") + "</b><br>"
+	  + QDir::cleanPath(ProgramPaths::tilesDir()) + "</small>");
+#else // Q_OS_ANDROID
 	msgBox.setText("<h3>" + tr("Paths") + "</h3>");
 	msgBox.setInformativeText(
 	  "<style>td {white-space: pre; padding-right: 1em;}</style><table><tr><td>"
@@ -844,14 +918,20 @@ void GUI::paths()
 	  + tr("Tile cache directory:") + "</td><td><code>"
 	  + QDir::cleanPath(ProgramPaths::tilesDir()) + "</code></td></tr></table>"
 	);
+#endif // Q_OS_ANDROID
 
 	msgBox.exec();
 }
 
 void GUI::openFile()
 {
+#ifdef Q_OS_ANDROID
+	QStringList files(QFileDialog::getOpenFileNames(this, tr("Open file"),
+	  _dataDir));
+#else // Q_OS_ANDROID
 	QStringList files(QFileDialog::getOpenFileNames(this, tr("Open file"),
 	  _dataDir, Data::formats()));
+#endif // Q_OS_ANDROID
 
 	for (int i = 0; i < files.size(); i++)
 		openFile(files.at(i));
@@ -859,6 +939,19 @@ void GUI::openFile()
 		_dataDir = QFileInfo(files.last()).path();
 }
 
+#ifdef Q_OS_ANDROID
+void GUI::openDir()
+{
+	QString dir(QFileDialog::getExistingDirectory(this, tr("Open directory"),
+	  _dataDir));
+
+	if (!dir.isEmpty()) {
+		_browser->setCurrentDir(dir);
+		openFile(_browser->current());
+	}
+}
+#endif // Q_OS_ANDROID
+
 bool GUI::openFile(const QString &fileName, bool silent)
 {
 	if (_files.contains(fileName))
@@ -868,7 +961,9 @@ bool GUI::openFile(const QString &fileName, bool silent)
 		return false;
 
 	_files.append(fileName);
+#ifndef Q_OS_ANDROID
 	_browser->setCurrent(fileName);
+#endif // Q_OS_ANDROID
 	_fileActionGroup->setEnabled(true);
 	// Explicitly enable the reload action as it may be disabled by loadMapDir()
 	_reloadFileAction->setEnabled(true);
@@ -898,7 +993,7 @@ bool GUI::loadFile(const QString &fileName, bool silent)
 			_fileActionGroup->setEnabled(false);
 
 		QString error = tr("Error loading data file:") + "\n\n"
-		  + fileName + "\n\n" + data.errorString();
+		  + Util::displayName(fileName) + "\n\n" + data.errorString();
 		if (data.errorLine())
 			error.append("\n" + tr("Line: %1").arg(data.errorLine()));
 		QMessageBox::critical(this, APP_NAME, error);
@@ -967,8 +1062,13 @@ void GUI::loadData(const Data &data)
 
 void GUI::openPOIFile()
 {
+#ifdef Q_OS_ANDROID
+	QStringList files(QFileDialog::getOpenFileNames(this, tr("Open POI file"),
+	  _poiDir));
+#else // Q_OS_ANDROID
 	QStringList files(QFileDialog::getOpenFileNames(this, tr("Open POI file"),
 	  _poiDir, Data::formats()));
+#endif // Q_OS_ANDROID
 
 	for (int i = 0; i < files.size(); i++)
 		openPOIFile(files.at(i));
@@ -994,7 +1094,7 @@ bool GUI::openPOIFile(const QString &fileName)
 		return true;
 	} else {
 		QString error = tr("Error loading POI file:") + "\n\n"
-		  + fileName + "\n\n" + _poi->errorString();
+		  + Util::displayName(fileName) + "\n\n" + _poi->errorString();
 		if (_poi->errorLine())
 			error.append("\n" + tr("Line: %1").arg(_poi->errorLine()));
 		QMessageBox::critical(this, APP_NAME, error);
@@ -1207,12 +1307,72 @@ void GUI::exportPNGFile()
 void GUI::statistics()
 {
 	QLocale l(QLocale::system());
+	QMessageBox msgBox(this);
+	QString text;
 
+#ifdef Q_OS_ANDROID
+	if (_showTracksAction->isChecked() && _trackCount > 1)
+		text.append("<b>" + tr("Tracks") + ":</b> "
+		  + l.toString(_trackCount) + "<br>");
+	if (_showRoutesAction->isChecked() && _routeCount > 1)
+		text.append("<b>" + tr("Routes") + ":</b> "
+		  + l.toString(_routeCount) + "<br>");
+	if (_showWaypointsAction->isChecked() && _waypointCount > 1)
+		text.append("<b>" + tr("Waypoints") + ":</b> "
+		  + l.toString(_waypointCount) + "<br>");
+	if (_showAreasAction->isChecked() && _areaCount > 1)
+		text.append("<b>" + tr("Areas") + ":</b> "
+		  + l.toString(_areaCount) + "<br>");
+
+	if (_dateRange.first.isValid()) {
+		if (_dateRange.first == _dateRange.second) {
+			QString format = l.dateFormat(QLocale::LongFormat);
+			text.append("<b>" + tr("Date") + ":</b> "
+			  + _dateRange.first.toString(format) + "<br>");
+		} else {
+			QString format = l.dateFormat(QLocale::ShortFormat);
+			text.append("<b>" + tr("Date") + ":</b> "
+			  + QString("%1 - %2").arg(_dateRange.first.toString(format),
+			  _dateRange.second.toString(format)) + "<br>");
+		}
+	}
+
+	if (distance() > 0)
+		text.append("<b>" + tr("Distance") + ":</b> "
+		  + Format::distance(distance(), units()) + "<br>");
+	if (time() > 0) {
+		text.append("<b>" + tr("Time") + ":</b> "
+		  + Format::timeSpan(time()) + "<br>");
+		text.append("<b>" + tr("Moving time") + ":</b> "
+		  + Format::timeSpan(movingTime()) + "<br>");
+	}
+	text.append("<br>");
+
+	for (int i = 0; i < _tabs.count(); i++) {
+		const GraphTab *tab = _tabs.at(i);
+		if (tab->isEmpty())
+			continue;
+
+		text.append("<i>" + tab->label() + "</i><br>");
+		for (int j = 0; j < tab->info().size(); j++) {
+			const KV<QString, QString> &kv = tab->info().at(j);
+			text.append("<b>" + kv.key() + ":</b>&nbsp;" + kv.value());
+			if (j != tab->info().size() - 1)
+				text.append(" | ");
+		}
+		if (i != _tabs.count() - 1)
+			text.append("<br><br>");
+	}
+
+	msgBox.setWindowTitle(tr("Statistics"));
+	msgBox.setText(text);
+
+#else // Q_OS_ANDROID
 #ifdef Q_OS_WIN32
-	QString text = "<style>td {white-space: pre; padding-right: 4em;}"
+	text = "<style>td {white-space: pre; padding-right: 4em;}"
 	  "th {text-align: left; padding-top: 0.5em;}</style><table>";
 #else // Q_OS_WIN32
-	QString text = "<style>td {white-space: pre; padding-right: 2em;}"
+	text = "<style>td {white-space: pre; padding-right: 2em;}"
 	  "th {text-align: left; padding-top: 0.5em;}</style><table>";
 #endif // Q_OS_WIN32
 
@@ -1267,11 +1427,11 @@ void GUI::statistics()
 
 	text.append("</table>");
 
-
-	QMessageBox msgBox(this);
 	msgBox.setWindowTitle(tr("Statistics"));
 	msgBox.setText("<h3>" + tr("Statistics") + "</h3>");
 	msgBox.setInformativeText(text);
+#endif // Q_OS_ANDROID
+
 	msgBox.exec();
 }
 
@@ -1430,8 +1590,10 @@ void GUI::reloadFiles()
 	updateWindowTitle();
 	if (_files.isEmpty())
 		_fileActionGroup->setEnabled(false);
+#ifndef Q_OS_ANDROID
 	else
 		_browser->setCurrent(_files.last());
+#endif // Q_OS_ANDROID
 	updateDEMDownloadAction();
 }
 
@@ -1466,6 +1628,10 @@ void GUI::closeAll()
 	updateWindowTitle();
 	updateGraphTabs();
 	updateDEMDownloadAction();
+
+#ifdef Q_OS_ANDROID
+	_browser->setCurrentDir(QString());
+#endif // Q_OS_ANDROID
 }
 
 void GUI::showGraphs(bool show)
@@ -1473,6 +1639,7 @@ void GUI::showGraphs(bool show)
 	_graphTabWidget->setHidden(!show);
 }
 
+#ifndef Q_OS_ANDROID
 void GUI::showToolbars(bool show)
 {
 	if (show) {
@@ -1515,6 +1682,7 @@ void GUI::showFullscreen(bool show)
 		showNormal();
 	}
 }
+#endif // Q_OS_ANDROID
 
 void GUI::showTracks(bool show)
 {
@@ -1583,8 +1751,13 @@ void GUI::showPathMarkerInfo(QAction *action)
 
 void GUI::loadMap()
 {
+#ifdef Q_OS_ANDROID
+	QStringList files(QFileDialog::getOpenFileNames(this, tr("Open map file"),
+	  _mapDir));
+#else // Q_OS_ANDROID
 	QStringList files(QFileDialog::getOpenFileNames(this, tr("Open map file"),
 	  _mapDir, MapList::formats()));
+#endif // Q_OS_ANDROID
 	MapAction *a, *lastReady = 0;
 
 	for (int i = 0; i < files.size(); i++) {
@@ -1627,7 +1800,8 @@ bool GUI::loadMapNode(const TreeNode<Map*> &node, MapAction *&action,
 			if (!map->isValid()) {
 				if (!silent)
 					QMessageBox::critical(this, APP_NAME,
-					  tr("Error loading map:") + "\n\n" + map->path() + "\n\n"
+					  tr("Error loading map:") + "\n\n"
+					  + Util::displayName(map->path()) + "\n\n"
 					  + map->errorString());
 				delete map;
 			} else {
@@ -1672,8 +1846,8 @@ void GUI::mapLoaded()
 		_showMapAction->setEnabled(true);
 		_clearMapCacheAction->setEnabled(true);
 	} else {
-		QString error = tr("Error loading map:") + "\n\n" + map->path() + "\n\n"
-		  + map->errorString();
+		QString error = tr("Error loading map:") + "\n\n"
+		  + Util::displayName(map->path()) + "\n\n" + map->errorString();
 		QMessageBox::critical(this, APP_NAME, error);
 		action->deleteLater();
 	}
@@ -1691,8 +1865,8 @@ void GUI::mapLoadedDir()
 		actions.append(action);
 		_mapView->loadMaps(actions);
 	} else {
-		QString error = tr("Error loading map:") + "\n\n" + map->path() + "\n\n"
-		  + map->errorString();
+		QString error = tr("Error loading map:") + "\n\n"
+		  + Util::displayName(map->path()) + "\n\n" + map->errorString();
 		QMessageBox::critical(this, APP_NAME, error);
 		action->deleteLater();
 	}
@@ -1714,7 +1888,8 @@ void GUI::loadMapDirNode(const TreeNode<Map *> &node, QList<MapAction*> &actions
 		if (!(a = findMapAction(existingActions, map))) {
 			if (!map->isValid()) {
 				QMessageBox::critical(this, APP_NAME, tr("Error loading map:")
-				  + "\n\n" + map->path() + "\n\n" + map->errorString());
+				  + "\n\n" + Util::displayName(map->path()) + "\n\n"
+				  + map->errorString());
 				delete map;
 			} else {
 				a = new MapAction(map, _mapsActionGroup);
@@ -1817,7 +1992,7 @@ void GUI::updateStatusBarInfo()
 	if (_files.count() == 0)
 		_fileNameLabel->setText(tr("No files loaded"));
 	else if (_files.count() == 1)
-		_fileNameLabel->setText(_files.at(0));
+		_fileNameLabel->setText(Util::displayName(_files.at(0)));
 	else
 		_fileNameLabel->setText(tr("%n files", "", _files.count()));
 
@@ -1840,6 +2015,10 @@ void GUI::updateStatusBarInfo()
 		_timeLabel->clear();
 		_timeLabel->setToolTip(QString());
 	}
+
+#ifdef Q_OS_ANDROID
+	statusBar()->setVisible(!_files.isEmpty());
+#endif // Q_OS_ANDROID
 }
 
 void GUI::updateWindowTitle()
@@ -1929,10 +2108,17 @@ void GUI::graphChanged(int index)
 
 void GUI::updateNavigationActions()
 {
+#ifdef Q_OS_ANDROID
+	_navigation->enableNext(!_browser->isLast()
+	  && !_browser->current().isNull());
+	_navigation->enablePrev(!_browser->isFirst()
+	  && !_browser->current().isNull());
+#else // Q_OS_ANDROID
 	_lastAction->setEnabled(!_browser->isLast());
 	_nextAction->setEnabled(!_browser->isLast());
 	_firstAction->setEnabled(!_browser->isFirst());
 	_prevAction->setEnabled(!_browser->isFirst());
+#endif // Q_OS_ANDROID
 }
 
 bool GUI::updateGraphTabs()
@@ -2042,6 +2228,7 @@ void GUI::first()
 	openFile(file);
 }
 
+#ifndef Q_OS_ANDROID
 void GUI::keyPressEvent(QKeyEvent *event)
 {
 	QString file;
@@ -2096,11 +2283,12 @@ void GUI::keyPressEvent(QKeyEvent *event)
 
 	QMainWindow::keyPressEvent(event);
 }
+#endif // Q_OS_ANDROID
 
 void GUI::closeEvent(QCloseEvent *event)
 {
 	writeSettings();
-	event->accept();
+	QMainWindow::closeEvent(event);
 }
 
 void GUI::dragEnterEvent(QDragEnterEvent *event)
@@ -2167,6 +2355,7 @@ void GUI::writeSettings()
 	QSettings settings(qApp->applicationName(), qApp->applicationName());
 	settings.clear();
 
+#ifndef Q_OS_ANDROID
 	settings.beginGroup(WINDOW_SETTINGS_GROUP);
 	if (!_windowStates.isEmpty() && !_windowGeometries.isEmpty()) {
 		settings.setValue(WINDOW_STATE_SETTING, _windowStates.first());
@@ -2176,6 +2365,7 @@ void GUI::writeSettings()
 		settings.setValue(WINDOW_GEOMETRY_SETTING, saveGeometry());
 	}
 	settings.endGroup();
+#endif // Q_OS_ANDROID
 
 	settings.beginGroup(SETTINGS_SETTINGS_GROUP);
 	if ((_movingTimeAction->isChecked() ? Moving : Total) !=
@@ -2190,9 +2380,11 @@ void GUI::writeSettings()
 	  : _degreesMinutesAction->isChecked() ? DegreesMinutes : DecimalDegrees;
 	if (format != COORDINATES_DEFAULT)
 		settings.setValue(COORDINATES_SETTING, format);
+#ifndef Q_OS_ANDROID
 	if (_showToolbarsAction->isChecked() != SHOW_TOOLBARS_DEFAULT)
 		settings.setValue(SHOW_TOOLBARS_SETTING,
 		  _showToolbarsAction->isChecked());
+#endif // Q_OS_ANDROID
 	settings.endGroup();
 
 	settings.beginGroup(MAP_SETTINGS_GROUP);
@@ -2485,10 +2677,12 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 	int value;
 	QSettings settings(qApp->applicationName(), qApp->applicationName());
 
+#ifndef Q_OS_ANDROID
 	settings.beginGroup(WINDOW_SETTINGS_GROUP);
 	restoreGeometry(settings.value(WINDOW_GEOMETRY_SETTING).toByteArray());
 	restoreState(settings.value(WINDOW_STATE_SETTING).toByteArray());
 	settings.endGroup();
+#endif // Q_OS_ANDROID
 
 	settings.beginGroup(SETTINGS_SETTINGS_GROUP);
 	if (settings.value(TIME_TYPE_SETTING, TIME_TYPE_DEFAULT).toInt() == Moving)
@@ -2512,10 +2706,12 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 	else
 		_decimalDegreesAction->trigger();
 
+#ifndef Q_OS_ANDROID
 	if (!settings.value(SHOW_TOOLBARS_SETTING, SHOW_TOOLBARS_DEFAULT).toBool())
 		showToolbars(false);
 	else
 		_showToolbarsAction->setChecked(true);
+#endif // Q_OS_ANDROID
 	settings.endGroup();
 
 	settings.beginGroup(MAP_SETTINGS_GROUP);
@@ -2523,8 +2719,8 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 		_showMapAction->setChecked(true);
 	else
 		_mapView->showMap(false);
-	if (settings.value(SHOW_CURSOR_COORDINATES_SETTING, SHOW_CURSOR_COORDINATES_DEFAULT)
-	  .toBool()) {
+	if (settings.value(SHOW_CURSOR_COORDINATES_SETTING,
+	  SHOW_CURSOR_COORDINATES_DEFAULT).toBool()) {
 		_showCoordinatesAction->setChecked(true);
 		_mapView->showCursorCoordinates(true);
 	}

src/GUI/gui.h

@@ -35,6 +35,7 @@ class MapAction;
 class POIAction;
 class Data;
 class DEMLoader;
+class NavigationWidget;
 
 class GUI : public QMainWindow
 {
@@ -47,15 +48,21 @@ public:
 	bool loadMap(const QString &fileName, MapAction *&action,
 	  bool silent = false);
 	void show();
+	void writeSettings();
 
 private slots:
 	void about();
+#ifndef Q_OS_ANDROID
 	void keys();
+#endif // Q_OS_ANDROID
 	void paths();
 	void printFile();
 	void exportPDFFile();
 	void exportPNGFile();
 	void openFile();
+#ifdef Q_OS_ANDROID
+	void openDir();
+#endif // Q_OS_ANDROID
 	void closeAll();
 	void reloadFiles();
 	void statistics();
@@ -64,8 +71,10 @@ private slots:
 	void showGraphGrids(bool show);
 	void showGraphSliderInfo(bool show);
 	void showPathMarkerInfo(QAction *action);
+#ifndef Q_OS_ANDROID
 	void showToolbars(bool show);
 	void showFullscreen(bool show);
+#endif // Q_OS_ANDROID
 	void showTracks(bool show);
 	void showRoutes(bool show);
 	void showAreas(bool show);
@@ -129,7 +138,11 @@ private:
 	  QAction *action = 0);
 	void createActions();
 	void createMenus();
+#ifdef Q_OS_ANDROID
+	void createNavigation();
+#else // Q_OS_ANDROID
 	void createToolBars();
+#endif // Q_OS_ANDROID
 	void createStatusBar();
 	void createMapView();
 	void createGraphTabs();
@@ -160,19 +173,24 @@ private:
 	QAction *mapAction(const QString &name);
 	QGeoPositionInfoSource *positionSource(const Options &options);
 	void readSettings(QString &activeMap, QStringList &disabledPOIs);
-	void writeSettings();
 
 	void loadInitialMaps(const QString &selected);
 	void loadInitialPOIs(const QStringList &disabled);
 
+#ifndef Q_OS_ANDROID
 	void keyPressEvent(QKeyEvent *event);
+#endif // Q_OS_ANDROID
 	void closeEvent(QCloseEvent *event);
 	void dragEnterEvent(QDragEnterEvent *event);
 	void dropEvent(QDropEvent *event);
 
+#ifdef Q_OS_ANDROID
+	NavigationWidget *_navigation;
+#else // Q_OS_ANDROID
 	QToolBar *_fileToolBar;
 	QToolBar *_showToolBar;
 	QToolBar *_navigationToolBar;
+#endif // Q_OS_ANDROID
 	QMenu *_poiMenu;
 	QMenu *_mapMenu;
 
@@ -180,15 +198,16 @@ private:
 	QActionGroup *_navigationActionGroup;
 	QActionGroup *_mapsActionGroup;
 	QActionGroup *_poisActionGroup;
+#if !defined(Q_OS_MAC) && !defined(Q_OS_ANDROID)
 	QAction *_exitAction;
-	QAction *_keysAction;
+#endif // Q_OS_MAC + Q_OS_ANDROID
 	QAction *_pathsAction;
 	QAction *_aboutAction;
-	QAction *_aboutQtAction;
 	QAction *_printFileAction;
 	QAction *_exportPDFFileAction;
 	QAction *_exportPNGFileAction;
 	QAction *_openFileAction;
+	QAction *_openDirAction;
 	QAction *_closeFileAction;
 	QAction *_reloadFileAction;
 	QAction *_statisticsAction;
@@ -204,7 +223,6 @@ private:
 	QAction *_followPositionAction;
 	QAction *_showPositionCoordinatesAction;
 	QAction *_showMotionInfo;
-	QAction *_fullscreenAction;
 	QAction *_loadMapAction;
 	QAction *_loadMapDirAction;
 	QAction *_clearMapCacheAction;
@@ -213,11 +231,15 @@ private:
 	QAction *_showGraphSliderInfoAction;
 	QAction *_distanceGraphAction;
 	QAction *_timeGraphAction;
+#ifndef Q_OS_ANDROID
+	QAction *_keysAction;
+	QAction *_fullscreenAction;
 	QAction *_showToolbarsAction;
 	QAction *_nextAction;
 	QAction *_prevAction;
 	QAction *_lastAction;
 	QAction *_firstAction;
+#endif // Q_OS_ANDROID
 	QAction *_metricUnitsAction;
 	QAction *_imperialUnitsAction;
 	QAction *_nauticalUnitsAction;
@@ -271,9 +293,11 @@ private:
 	DateTimeRange _dateRange;
 	QString _pathName;
 
+#ifndef Q_OS_ANDROID
 	QList<QByteArray> _windowStates;
 	QList<QByteArray> _windowGeometries;
 	int _frameStyle;
+#endif // Q_OS_ANDROID
 
 	PDFExport _pdfExport;
 	PNGExport _pngExport;

src/GUI/heartrategraph.cpp

@@ -24,10 +24,17 @@ void HeartRateGraph::setInfo()
 	if (_showTracks) {
 		QLocale l(QLocale::system());
 
+#ifdef Q_OS_ANDROID
+		GraphView::addInfo(tr("Avg"), l.toString(avg() * yScale(), 'f', 0)
+		  + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Max"), l.toString(max() * yScale(), 'f', 0)
+		  + UNIT_SPACE + yUnits());
+#else // Q_OS_ANDROID
 		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale(), 'f',
 		  0) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale(), 'f',
 		  0) + UNIT_SPACE + yUnits());
+#endif // Q_OS_ANDROID
 	} else
 		clearInfo();
 }

src/GUI/mapview.cpp

@@ -662,20 +662,8 @@ void MapView::wheelEvent(QWheelEvent *event)
 #else // QT 5.15
 	zoom((delta > 0) ? 1 : -1, event->position().toPoint(), shift);
 #endif // QT 5.15
-}
 
-void MapView::mouseDoubleClickEvent(QMouseEvent *event)
-{
-	bool shift = (event->modifiers() & MODIFIER) ? true : false;
-
-	QGraphicsView::mouseDoubleClickEvent(event);
-	if (event->isAccepted())
-		return;
-
-	if (event->button() != Qt::LeftButton && event->button() != Qt::RightButton)
-		return;
-
-	zoom((event->button() == Qt::LeftButton) ? 1 : -1, event->pos(), shift);
+	QGraphicsView::wheelEvent(event);
 }
 
 void MapView::keyPressEvent(QKeyEvent *event)
@@ -713,15 +701,6 @@ void MapView::keyReleaseEvent(QKeyEvent *event)
 	QGraphicsView::keyReleaseEvent(event);
 }
 
-void MapView::mousePressEvent(QMouseEvent *event)
-{
-	if (event->button() == Qt::LeftButton && event->modifiers() & MODIFIER)
-		QApplication::clipboard()->setText(Format::coordinates(
-		  _map->xy2ll(mapToScene(event->pos())), _cursorCoordinates->format()));
-	else
-		QGraphicsView::mousePressEvent(event);
-}
-
 void MapView::plot(QPainter *painter, const QRectF &target, qreal scale,
   PlotFlags flags)
 {
@@ -1200,6 +1179,12 @@ void MapView::scrollContentsBy(int dx, int dy)
 	}
 }
 
+void MapView::leaveEvent(QEvent *event)
+{
+	_cursorCoordinates->setCoordinates(Coordinates());
+	QGraphicsView::leaveEvent(event);
+}
+
 void MapView::mouseMoveEvent(QMouseEvent *event)
 {
 	if (_cursorCoordinates->isVisible()) {
@@ -1210,10 +1195,30 @@ void MapView::mouseMoveEvent(QMouseEvent *event)
 	QGraphicsView::mouseMoveEvent(event);
 }
 
-void MapView::leaveEvent(QEvent *event)
+
+void MapView::mousePressEvent(QMouseEvent *event)
 {
-	_cursorCoordinates->setCoordinates(Coordinates());
-	QGraphicsView::leaveEvent(event);
+	if (event->button() == Qt::LeftButton) {
+		if (event->modifiers() & MODIFIER)
+			QApplication::clipboard()->setText(Format::coordinates(_map->xy2ll(
+			  mapToScene(event->pos())), _cursorCoordinates->format()));
+#ifdef Q_OS_ANDROID
+		else
+			emit clicked(event->pos());
+#endif // Q_OS_ANDROID
+	}
+
+	QGraphicsView::mousePressEvent(event);
+}
+
+void MapView::mouseDoubleClickEvent(QMouseEvent *event)
+{
+	bool shift = (event->modifiers() & MODIFIER) ? true : false;
+
+	if (event->button() == Qt::LeftButton || event->button() == Qt::RightButton)
+		zoom((event->button() == Qt::LeftButton) ? 1 : -1, event->pos(), shift);
+
+	QGraphicsView::mouseDoubleClickEvent(event);
 }
 
 bool MapView::event(QEvent *event)

src/GUI/mapview.h

@@ -102,6 +102,11 @@ public:
 
 	RectC boundingRect() const;
 
+#ifdef Q_OS_ANDROID
+signals:
+	void clicked(const QPoint &pos);
+#endif // Q_OS_ANDROID
+
 public slots:
 	void showMap(bool show);
 	void showPOI(bool show);
@@ -162,6 +167,7 @@ private:
 	void drawBackground(QPainter *painter, const QRectF &rect);
 	void paintEvent(QPaintEvent *event);
 	void leaveEvent(QEvent *event);
+
 	bool event(QEvent *event);
 	void scrollContentsBy(int dx, int dy);
 

src/GUI/navigationwidget.cpp

@@ -0,0 +1,101 @@
+#include "navigationwidget.h"
+#include <QEvent>
+#include <QResizeEvent>
+#include <QPainter>
+
+#define MARGIN 5
+#define SIZE   40
+
+#ifdef Q_OS_ANDROID
+
+NavigationWidget::NavigationWidget(MapView *view)
+  : QWidget(view), _showPrev(false), _showNext(false)
+{
+	setAttribute(Qt::WA_NoSystemBackground);
+	setAttribute(Qt::WA_TranslucentBackground);
+	setAttribute(Qt::WA_TransparentForMouseEvents);
+
+	newParent();
+
+	connect(view, &MapView::clicked, this, &NavigationWidget::viewClicked);
+}
+
+bool NavigationWidget::eventFilter(QObject *obj, QEvent *ev)
+{
+	if (obj == parent()) {
+		if (ev->type() == QEvent::Resize)
+			resize(static_cast<QResizeEvent*>(ev)->size());
+		else if (ev->type() == QEvent::ChildAdded)
+			raise();
+	}
+
+	return QWidget::eventFilter(obj, ev);
+}
+
+bool NavigationWidget::event(QEvent* ev)
+{
+	if (ev->type() == QEvent::ParentAboutToChange) {
+		if (parent())
+			parent()->removeEventFilter(this);
+	} else if (ev->type() == QEvent::ParentChange)
+		newParent();
+
+	return QWidget::event(ev);
+}
+
+void NavigationWidget::paintEvent(QPaintEvent *ev)
+{
+	Q_UNUSED(ev);
+	QPainter p(this);
+
+	QColor c(Qt::black);
+	c.setAlpha(64);
+	p.setBrush(c);
+	p.setPen(Qt::NoPen);
+
+	if (_showPrev) {
+		QPainterPath path;
+		path.addEllipse(QRect(MARGIN, rect().center().y() - SIZE/2, SIZE, SIZE));
+		path.moveTo(QPointF(MARGIN + 0.66*SIZE, rect().center().y() - SIZE/4));
+		path.lineTo(QPointF(MARGIN + SIZE/4, rect().center().y()));
+		path.lineTo(QPointF(MARGIN + 0.66*SIZE, rect().center().y() + SIZE/4));
+		path.closeSubpath();
+		p.drawPath(path);
+	}
+	if (_showNext) {
+		QPainterPath path;
+		path.addEllipse(QRect(rect().right() - (MARGIN + SIZE),
+		  rect().center().y() - SIZE/2, SIZE, SIZE));
+		path.moveTo(QPointF(rect().right() - (MARGIN + 0.66*SIZE),
+		  rect().center().y() - SIZE/4));
+		path.lineTo(QPointF(rect().right() - (MARGIN + SIZE/4),
+		  rect().center().y()));
+		path.lineTo(QPointF(rect().right() - (MARGIN + 0.66*SIZE),
+		  rect().center().y() + SIZE/4));
+		path.closeSubpath();
+		p.drawPath(path);
+	}
+}
+
+void NavigationWidget::newParent()
+{
+	if (!parent())
+		return;
+
+	parent()->installEventFilter(this);
+	raise();
+}
+
+void NavigationWidget::viewClicked(const QPoint &pos)
+{
+	QRect prevRect(MARGIN, rect().center().y() - SIZE/2, SIZE, SIZE);
+	QRect nextRect(rect().right() - (MARGIN + SIZE), rect().center().y()
+	  - SIZE/2, SIZE, SIZE);
+
+	if (prevRect.contains(pos))
+		emit prev();
+	else if (nextRect.contains(pos))
+		emit next();
+}
+
+#endif // Q_OS_ANDROID

src/GUI/navigationwidget.h

@@ -0,0 +1,35 @@
+#ifndef NAVIGATIONWIDGET_H
+#define NAVIGATIONWIDGET_H
+
+#include <QWidget>
+#include "mapview.h"
+
+#ifdef Q_OS_ANDROID
+class NavigationWidget : public QWidget
+{
+	Q_OBJECT
+
+public:
+	NavigationWidget(MapView *view);
+
+	void enableNext(bool enable) {_showNext = enable; update();}
+	void enablePrev(bool enable) {_showPrev = enable; update();}
+
+signals:
+	void next();
+	void prev();
+
+private slots:
+	void viewClicked(const QPoint &pos);
+
+private:
+	bool eventFilter(QObject *obj, QEvent *ev);
+	bool event(QEvent *ev);
+	void paintEvent(QPaintEvent *ev);
+	void newParent();
+
+	bool _showPrev, _showNext;
+};
+#endif // Q_OS_ANDROID
+
+#endif // NAVIGATIONWIDGET_H

src/GUI/optionsdialog.cpp

@@ -26,8 +26,11 @@
 #include "pluginparameters.h"
 #include "optionsdialog.h"
 
-
+#ifdef Q_OS_ANDROID
+#define MENU_MARGIN 0
+#else // Q_OS_ANDROID
 #define MENU_MARGIN 20
+#endif // Q_OS_ANDROID
 #define MENU_ICON_SIZE 32
 
 #ifdef Q_OS_MAC
@@ -779,6 +782,11 @@ QWidget *OptionsDialog::createSystemPage()
 OptionsDialog::OptionsDialog(Options &options, Units units, QWidget *parent)
   : QDialog(parent), _options(options), _units(units)
 {
+#ifdef Q_OS_ANDROID
+	setWindowFlags(Qt::Window);
+	setWindowState(Qt::WindowFullScreen);
+#endif /* Q_OS_ANDROID */
+
 	QStackedWidget *pages = new QStackedWidget();
 	pages->addWidget(createAppearancePage());
 	pages->addWidget(createMapPage());
@@ -791,16 +799,25 @@ OptionsDialog::OptionsDialog(Options &options, Units units, QWidget *parent)
 
 	QListWidget *menu = new QListWidget();
 	menu->setIconSize(QSize(MENU_ICON_SIZE, MENU_ICON_SIZE));
-	new QListWidgetItem(QIcon(APPEARANCE_ICON), tr("Appearance"),
-	  menu);
+#ifdef Q_OS_ANDROID
+	new QListWidgetItem(QIcon(APPEARANCE_ICON), QString(), menu);
+	new QListWidgetItem(QIcon(MAPS_ICON), QString(), menu);
+	new QListWidgetItem(QIcon(DATA_ICON), QString(), menu);
+	new QListWidgetItem(QIcon(POI_ICON), QString(), menu);
+	new QListWidgetItem(QIcon(DEM_ICON), QString(), menu);
+	new QListWidgetItem(QIcon(POSITION_ICON), QString(), menu);
+	new QListWidgetItem(QIcon(PRINT_EXPORT_ICON), QString(), menu);
+	new QListWidgetItem(QIcon(SYSTEM_ICON), QString(), menu);
+#else // Q_OS_ANDROID
+	new QListWidgetItem(QIcon(APPEARANCE_ICON), tr("Appearance"), menu);
 	new QListWidgetItem(QIcon(MAPS_ICON), tr("Maps"), menu);
 	new QListWidgetItem(QIcon(DATA_ICON), tr("Data"), menu);
 	new QListWidgetItem(QIcon(POI_ICON), tr("POI"), menu);
 	new QListWidgetItem(QIcon(DEM_ICON), tr("DEM"), menu);
 	new QListWidgetItem(QIcon(POSITION_ICON), tr("Position"), menu);
-	new QListWidgetItem(QIcon(PRINT_EXPORT_ICON), tr("Print & Export"),
-	  menu);
+	new QListWidgetItem(QIcon(PRINT_EXPORT_ICON), tr("Print & Export"), menu);
 	new QListWidgetItem(QIcon(SYSTEM_ICON), tr("System"), menu);
+#endif // Q_OS_ANDROID
 
 	QHBoxLayout *contentLayout = new QHBoxLayout();
 	contentLayout->addWidget(menu);

src/GUI/pdfexportdialog.cpp

@@ -18,9 +18,16 @@ PDFExportDialog::PDFExportDialog(PDFExport &exp, Units units, QWidget *parent)
 {
 	int index;
 
+#ifdef Q_OS_ANDROID
+	setWindowFlags(Qt::Window);
+	setWindowState(Qt::WindowFullScreen);
+#endif /* Q_OS_ANDROID */
+
 	_fileSelect = new FileSelectWidget();
+#ifndef Q_OS_ANDROID
 	_fileSelect->setFilter(tr("PDF files") + " (*.pdf);;" + tr("All files")
 	  + " (*)");
+#endif // Q_OS_ANDROID
 	_fileSelect->setFile(_export.fileName);
 
 	_paperSize = new QComboBox();
@@ -102,6 +109,9 @@ PDFExportDialog::PDFExportDialog(PDFExport &exp, Units units, QWidget *parent)
 #else // Q_OS_MAC
 	layout->addWidget(pageSetupBox);
 	layout->addWidget(outputFileBox);
+#ifdef Q_OS_ANDROID
+	layout->addStretch();
+#endif // Q_OS_ANDROID
 #endif // Q_OS_MAC
 	layout->addWidget(buttonBox);
 	setLayout(layout);

src/GUI/pngexportdialog.cpp

@@ -15,9 +15,16 @@
 PNGExportDialog::PNGExportDialog(PNGExport &exp, QWidget *parent)
   : QDialog(parent), _export(exp)
 {
+#ifdef Q_OS_ANDROID
+	setWindowFlags(Qt::Window);
+	setWindowState(Qt::WindowFullScreen);
+#endif /* Q_OS_ANDROID */
+
 	_fileSelect = new FileSelectWidget();
+#ifndef Q_OS_ANDROID
 	_fileSelect->setFilter(tr("PNG files") + " (*.png);;" + tr("All files")
 	  + " (*)");
+#endif // Q_OS_ANDROID
 	_fileSelect->setFile(_export.fileName);
 
 	_width = new QSpinBox();
@@ -78,6 +85,9 @@ PNGExportDialog::PNGExportDialog(PNGExport &exp, QWidget *parent)
 #else // Q_OS_MAC
 	layout->addWidget(pageSetupBox);
 	layout->addWidget(outputFileBox);
+#ifdef Q_OS_ANDROID
+	layout->addStretch();
+#endif // Q_OS_ANDROID
 #endif // Q_OS_MAC
 	layout->addWidget(buttonBox);
 	setLayout(layout);

src/GUI/powergraph.cpp

@@ -24,10 +24,17 @@ void PowerGraph::setInfo()
 	if (_showTracks) {
 		QLocale l(QLocale::system());
 
+#ifdef Q_OS_ANDROID
+		GraphView::addInfo(tr("Avg"), l.toString(avg() * yScale() + yOffset(),
+		  'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Max"), l.toString(max() * yScale() + yOffset(),
+		  'f', 1) + UNIT_SPACE + yUnits());
+#else // Q_OS_ANDROID
 		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale()
 		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale()
 		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
+#endif // Q_OS_ANDROID
 	} else
 		clearInfo();
 }

src/GUI/settings.h

@@ -1,6 +1,8 @@
 #ifndef SETTINGS_H
 #define SETTINGS_H
 
+#include <QtGlobal>
+
 #define IMPERIAL_UNITS() \
 	(QLocale::system().measurementSystem() == QLocale::ImperialSystem)
 #define POSITION_PLUGIN() \

src/GUI/speedgraph.cpp

@@ -31,10 +31,17 @@ void SpeedGraph::setInfo()
 		QString pu = (_units == Metric) ? tr("min/km") : (_units == Imperial) ?
 		  tr("min/mi") : tr("min/nmi");
 
+#ifdef Q_OS_ANDROID
+		GraphView::addInfo(tr("Avg"), l.toString(avg() * yScale(), 'f', 1)
+		  + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Max"), l.toString(max() * yScale(), 'f', 1)
+		  + UNIT_SPACE + yUnits());
+#else // Q_OS_ANDROID
 		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale(), 'f',
 		  1) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale(), 'f',
 		  1) + UNIT_SPACE + yUnits());
+#endif // Q_OS_ANDROID
 		GraphView::addInfo(tr("Pace"), pace + UNIT_SPACE + pu);
 	} else
 		clearInfo();

src/GUI/temperaturegraph.cpp

@@ -24,12 +24,21 @@ void TemperatureGraph::setInfo()
 	if (_showTracks) {
 		QLocale l(QLocale::system());
 
+#ifdef Q_OS_ANDROID
+		GraphView::addInfo(tr("Avg"), l.toString(avg() * yScale() + yOffset(),
+		  'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Min"), l.toString(min() * yScale() + yOffset(),
+		  'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Max"), l.toString(max() * yScale() + yOffset(),
+		  'f', 1) + UNIT_SPACE + yUnits());
+#else // Q_OS_ANDROID
 		GraphView::addInfo(tr("Average"), l.toString(avg() * yScale()
 		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Minimum"), l.toString(min() * yScale()
 		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
 		GraphView::addInfo(tr("Maximum"), l.toString(max() * yScale()
 		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
+#endif // Q_OS_ANDROID
 	} else
 		clearInfo();
 }

src/GUI/thumbnail.cpp

@@ -32,11 +32,21 @@ Thumbnail::Thumbnail(const QString &path, int limit, QWidget *parent)
 
 	setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
 
+#ifdef Q_OS_ANDROID
+	_path = path;
+#else //Q_OS_ANDROID
 	_path = QFileInfo(path).absoluteFilePath();
+#endif // Q_OS_ANDROID
 }
 
 void Thumbnail::mousePressEvent(QMouseEvent *event)
 {
 	if (event->button() == Qt::LeftButton)
+#ifdef Q_OS_ANDROID
+		QDesktopServices::openUrl(_path);
+#else // Q_OS_ANDROID
 		QDesktopServices::openUrl(QUrl::fromLocalFile(_path));
+#endif // Q_OS_ANDROID
+
+	QLabel::mousePressEvent(event);
 }

src/common/programpaths.cpp

@@ -19,65 +19,97 @@
 #define TYP_FILE         "style.typ"
 #define RENDERTHEME_FILE "style.xml"
 
+#ifdef Q_OS_ANDROID
+#define DATA_LOCATION QStandardPaths::GenericDataLocation
+#else // Q_OS_ANDROID
+#define DATA_LOCATION QStandardPaths::AppDataLocation
+#endif // Q_OS_ANDROID
+
+#ifdef Q_OS_ANDROID
+static QString assetsPath(const QString &path, const QString &dir)
+{
+	QDir pd(path);
+
+	if (pd.isAbsolute() && pd.exists())
+		return pd.absolutePath();
+	else
+		return QString("assets://") + dir;
+}
+#endif // Q_OS_ANDROID
 
 QString ProgramPaths::mapDir(bool writable)
 {
 	if (writable)
-		return QDir(QStandardPaths::writableLocation(
-		  QStandardPaths::AppDataLocation)).filePath(MAP_DIR);
+		return QDir(QStandardPaths::writableLocation(DATA_LOCATION))
+		  .filePath(MAP_DIR);
 	else
-		return QStandardPaths::locate(QStandardPaths::AppDataLocation,
+#ifdef Q_OS_ANDROID
+		return assetsPath(QStandardPaths::locate(DATA_LOCATION, MAP_DIR,
+		  QStandardPaths::LocateDirectory), MAP_DIR);
+#else // Q_OS_ANDROID
+		return QStandardPaths::locate(DATA_LOCATION,
 		  MAP_DIR, QStandardPaths::LocateDirectory);
+#endif // Q_OS_ANDROID
 }
 
 QString ProgramPaths::poiDir(bool writable)
 {
 	if (writable)
-		return QDir(QStandardPaths::writableLocation(
-		  QStandardPaths::AppDataLocation)).filePath(POI_DIR);
+		return QDir(QStandardPaths::writableLocation(DATA_LOCATION))
+		  .filePath(POI_DIR);
 	else
-		return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-		  POI_DIR, QStandardPaths::LocateDirectory);
+		return QStandardPaths::locate(DATA_LOCATION, POI_DIR,
+		  QStandardPaths::LocateDirectory);
 }
 
 QString ProgramPaths::csvDir(bool writable)
 {
 	if (writable)
-		return QDir(QStandardPaths::writableLocation(
-		  QStandardPaths::AppDataLocation)).filePath(CSV_DIR);
+		return QDir(QStandardPaths::writableLocation(DATA_LOCATION))
+		  .filePath(CSV_DIR);
 	else
-		return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-		  CSV_DIR, QStandardPaths::LocateDirectory);
+#ifdef Q_OS_ANDROID
+		return assetsPath(QStandardPaths::locate(DATA_LOCATION, CSV_DIR,
+		  QStandardPaths::LocateDirectory), CSV_DIR);
+#else // Q_OS_ANDROID
+		return QStandardPaths::locate(DATA_LOCATION, CSV_DIR,
+		  QStandardPaths::LocateDirectory);
+#endif // Q_OS_ANDROID
 }
 
 QString ProgramPaths::demDir(bool writable)
 {
 	if (writable)
-		return QDir(QStandardPaths::writableLocation(
-		  QStandardPaths::AppDataLocation)).filePath(DEM_DIR);
+		return QDir(QStandardPaths::writableLocation(DATA_LOCATION))
+		  .filePath(DEM_DIR);
 	else
-		return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-		  DEM_DIR, QStandardPaths::LocateDirectory);
+		return QStandardPaths::locate(DATA_LOCATION, DEM_DIR,
+		  QStandardPaths::LocateDirectory);
 }
 
 QString ProgramPaths::styleDir(bool writable)
 {
 	if (writable)
-		return QDir(QStandardPaths::writableLocation(
-		  QStandardPaths::AppDataLocation)).filePath(STYLE_DIR);
+		return QDir(QStandardPaths::writableLocation(DATA_LOCATION))
+		  .filePath(STYLE_DIR);
 	else
-		return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-		  STYLE_DIR, QStandardPaths::LocateDirectory);
+		return QStandardPaths::locate(DATA_LOCATION, STYLE_DIR,
+		  QStandardPaths::LocateDirectory);
 }
 
 QString ProgramPaths::symbolsDir(bool writable)
 {
 	if (writable)
-		return QDir(QStandardPaths::writableLocation(
-		  QStandardPaths::AppDataLocation)).filePath(SYMBOLS_DIR);
+		return QDir(QStandardPaths::writableLocation(DATA_LOCATION))
+		  .filePath(SYMBOLS_DIR);
 	else
-		return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-		  SYMBOLS_DIR, QStandardPaths::LocateDirectory);
+#ifdef Q_OS_ANDROID
+		return assetsPath(QStandardPaths::locate(DATA_LOCATION, SYMBOLS_DIR,
+		  QStandardPaths::LocateDirectory), SYMBOLS_DIR);
+#else // Q_OS_ANDROID
+		return QStandardPaths::locate(DATA_LOCATION, SYMBOLS_DIR,
+		  QStandardPaths::LocateDirectory);
+#endif // Q_OS_ANDROID
 }
 
 QString ProgramPaths::tilesDir()
@@ -88,36 +120,31 @@ QString ProgramPaths::tilesDir()
 
 QString ProgramPaths::translationsDir()
 {
-	return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-	  TRANSLATIONS_DIR, QStandardPaths::LocateDirectory);
+	return QStandardPaths::locate(DATA_LOCATION, TRANSLATIONS_DIR,
+	  QStandardPaths::LocateDirectory);
 }
 
 QString ProgramPaths::ellipsoidsFile()
 {
-	return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-	  CSV_DIR "/" ELLIPSOID_FILE, QStandardPaths::LocateFile);
+	return QDir(csvDir()).filePath(ELLIPSOID_FILE);
 }
 
 QString ProgramPaths::gcsFile()
 {
-	return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-	  CSV_DIR "/" GCS_FILE, QStandardPaths::LocateFile);
+	return QDir(csvDir()).filePath(GCS_FILE);
 }
 
 QString ProgramPaths::pcsFile()
 {
-	return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-	  CSV_DIR "/" PCS_FILE, QStandardPaths::LocateFile);
+	return QDir(csvDir()).filePath(PCS_FILE);
 }
 
 QString ProgramPaths::typFile()
 {
-	return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-	  STYLE_DIR "/" TYP_FILE, QStandardPaths::LocateFile);
+	return QDir(styleDir()).filePath(TYP_FILE);
 }
 
 QString ProgramPaths::renderthemeFile()
 {
-	return QStandardPaths::locate(QStandardPaths::AppDataLocation,
-	  STYLE_DIR "/" RENDERTHEME_FILE, QStandardPaths::LocateFile);
+	return QDir(styleDir()).filePath(RENDERTHEME_FILE);
 }

src/common/util.cpp

@@ -1,9 +1,71 @@
 #include <cctype>
 #include <cmath>
 #include <QFileInfo>
+#ifdef Q_OS_ANDROID
+#include <QUrl>
+#include <QCoreApplication>
+#include <QJniEnvironment>
+#include <QJniObject>
+#endif // Q_OS_ANDROID
 #include "util.h"
 
 
+#ifdef Q_OS_ANDROID
+static QString documentName(const QString &path)
+{
+	QJniEnvironment env;
+
+	QJniObject urlString = QJniObject::fromString(path);
+	QJniObject uri = QJniObject::callStaticObjectMethod("android/net/Uri",
+	  "parse", "(Ljava/lang/String;)Landroid/net/Uri;",
+	  urlString.object<jstring>());
+	if (!uri.isValid()) {
+		env->ExceptionClear();
+		return QString();
+	}
+	QJniObject context = QNativeInterface::QAndroidApplication::context();
+	if (!context.isValid()) {
+		env->ExceptionClear();
+		return QString();
+	}
+	QJniObject contentResolver = context.callObjectMethod(
+	  "getContentResolver", "()Landroid/content/ContentResolver;");
+	if (!contentResolver.isValid()) {
+		env->ExceptionClear();
+		return QString();
+	}
+	QJniObject columnName = QJniObject::getStaticObjectField<jstring>(
+	  "android/provider/MediaStore$MediaColumns", "DISPLAY_NAME");
+	if (!columnName.isValid()) {
+		env->ExceptionClear();
+		return QString();
+	}
+	jobjectArray stringArray = env->NewObjectArray(
+	  1, env->FindClass("java/lang/String"), 0);
+	env->SetObjectArrayElement(stringArray, 0, columnName.object<jstring>());
+	QJniObject cursor = contentResolver.callObjectMethod("query",
+	  "(Landroid/net/Uri;[Ljava/lang/String;Landroid/os/Bundle;"
+	  "Landroid/os/CancellationSignal;)Landroid/database/Cursor;",
+	  uri.object(), stringArray, 0, 0);
+	if (!cursor.isValid()) {
+		env->ExceptionClear();
+		return QString();
+	}
+	if (!cursor.callMethod<jboolean>("moveToFirst")) {
+		env->ExceptionClear();
+		return QString();
+	}
+	QJniObject str = cursor.callObjectMethod("getString",
+	  "(I)Ljava/lang/String;", 0);
+	if (!str.isValid()) {
+		env->ExceptionClear();
+		return QString();
+	}
+
+	return str.toString();
+}
+#endif // Q_OS_ANDROID
+
 int Util::str2int(const char *str, int len)
 {
 	int res = 0;
@@ -52,6 +114,28 @@ double Util::niceNum(double x, bool round)
 
 QString Util::file2name(const QString &path)
 {
-	QFileInfo fi(path);
+	QFileInfo fi(displayName(path));
 	return fi.baseName().replace('_', ' ');
 }
+
+QString Util::displayName(const QString &path)
+{
+#ifdef Q_OS_ANDROID
+	QUrl url(path);
+
+	// Not an Android URL, return standard filename.
+	if (url.scheme() != "content") {
+		QFileInfo fi(path);
+		return fi.fileName();
+	// Directory browsing URLs. Those can not be translated using the Android
+	// content resolver but we can get the filename from the URL path.
+	} else if (url.path().startsWith("/tree/")) {
+		QFileInfo fi(url.fileName());
+		return fi.fileName();
+	// Translate all "regular" android URLs using the Android content resolver.
+	} else
+		return documentName(path);
+#else
+	return path;
+#endif // Q_OS_ANDROID
+}

src/common/util.h

@@ -8,6 +8,7 @@ namespace Util
 	int str2int(const char *str, int len);
 	double niceNum(double x, bool round);
 	QString file2name(const QString &path);
+	QString displayName(const QString &path);
 }
 
 #endif // UTIL_H