Use QCoreApplication replace qApp

App/MainWindow.cpp

@@ -600,7 +600,7 @@ void MainWindow::on_actionUpdate_U_triggered()
 
 void MainWindow::on_actionExit_triggered()
 {
-    qApp->quit();
+    QCoreApplication::quit();
 }
 
 void MainWindow::on_actionAiLibraries_triggered(QAction* a)

App/main.cpp

@@ -2,47 +2,42 @@
   @author: Kang Lin<[email protected]>
   */
 
-#include <QApplication>
-#include <QLoggingCategory>
-#if defined(Q_OS_ANDROID)
-    #include <QtAndroidExtras/QtAndroid>
+
+#ifdef RABBITCOMMON
+#include "RabbitCommonTools.h"
+#include "RabbitCommonDir.h"
+#include "FrmUpdater/FrmUpdater.h"
 #endif
 
 #include "MainWindow.h"
 
-#ifdef RABBITCOMMON
-    #include "RabbitCommonTools.h"
-    #include "RabbitCommonDir.h"
-    #include "FrmUpdater/FrmUpdater.h"
-#endif
+#include <QApplication>
 
+#include <QLoggingCategory>
 static Q_LOGGING_CATEGORY(log, "App.main")
 
 int main(int argc, char *argv[])
 {
-#if (QT_VERSION > QT_VERSION_CHECK(5,6,0))
-    QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
-#endif
-#if defined(Q_OS_ANDROID) && QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
-    QtAndroid::hideSplashScreen();
-#endif
     QApplication app(argc, argv);
     app.setApplicationVersion(FaceRecognizer_VERSION);
     app.setApplicationName("FaceRecognizer");
 
 #ifdef RABBITCOMMON
-    qInfo(log) << "GetDirApplication:"
-               << RabbitCommon::CDir::Instance()->GetDirApplication();
-
     RabbitCommon::CTools::Instance()->Init();
 
     QString szTranslator = RabbitCommon::CDir::Instance()->GetDirTranslations()
-            + "/" + qApp->applicationName()
+            + "/" + QCoreApplication::applicationName()
             + "App_" + QLocale::system().name() + ".qm";
     qDebug(log) << "Translator:" << szTranslator;
     QTranslator translator;
-    translator.load(szTranslator);
-    app.installTranslator(&translator);
+    bool bRet = translator.load(szTranslator);
+    if(bRet){
+        bRet = app.installTranslator(&translator);
+        if(!bRet)
+            qCritical(log) << "Install translator fail." << szTranslator;
+    }
+    else
+        qCritical(log) << "Load translator fail." << szTranslator;
 #endif
 
     app.setApplicationDisplayName(QObject::tr("Face recognizer"));