Fix RollingMessageWidget can not rolling.

src/components/RollingMessageWidget.cpp

@@ -6,8 +6,8 @@
 
 #include <QLabel>
 #include <QThread>
-#include <QDebug>
 #include <QShowEvent>
+#include <QTimer>
 
 namespace {
     const int WAIT_TIMES = 60;
@@ -146,6 +146,11 @@ QString RollingMessageWidget::getNextMessage() {
 
 void RollingMessageWidget::showEvent(QShowEvent *event) {
     QWidget::showEvent(event);
+    QTimer::singleShot(1000, this, &RollingMessageWidget::initDelay);
+}
+
+void RollingMessageWidget::initDelay()
+{
     if (!mInitFlag)
     {
         TOTAL_ROLL_DISTANCE = this->width();

src/components/RollingMessageWidget.h

@@ -31,6 +31,7 @@ public:
 protected:
     void timerEvent(QTimerEvent* event) override ;
     void showEvent(QShowEvent *event) override ;
+    void initDelay();
     QString getNextMessage();
 private:
     int mTimerId = -1;