改进代码

trayicon/frmtrayicon.cpp

@@ -0,0 +1,27 @@
+#include "frmtrayicon.h"
+#include "ui_frmtrayicon.h"
+#include "trayicon.h"
+
+frmTrayIcon::frmTrayIcon(QWidget *parent) : QWidget(parent), ui(new Ui::frmTrayIcon)
+{
+    ui->setupUi(this);
+    TrayIcon::Instance()->setIcon(":/main.ico");
+    TrayIcon::Instance()->setMainWidget(this);
+}
+
+frmTrayIcon::~frmTrayIcon()
+{
+    TrayIcon::Instance()->setVisible(false);
+    delete ui;
+}
+
+void frmTrayIcon::on_btnShow_clicked()
+{
+    TrayIcon::Instance()->setVisible(true);
+    TrayIcon::Instance()->showMessage("自定义控件大全", "已经最小化到托盘,双击打开!");
+}
+
+void frmTrayIcon::on_btnHide_clicked()
+{
+    TrayIcon::Instance()->setVisible(false);
+}

trayicon/frmtrayicon.h

@@ -0,0 +1,26 @@
+#ifndef FRMTRAYICON_H
+#define FRMTRAYICON_H
+
+#include <QWidget>
+
+namespace Ui {
+class frmTrayIcon;
+}
+
+class frmTrayIcon : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit frmTrayIcon(QWidget *parent = 0);
+    ~frmTrayIcon();
+
+private:
+    Ui::frmTrayIcon *ui;
+
+private slots:
+    void on_btnShow_clicked();
+    void on_btnHide_clicked();
+};
+
+#endif // FRMTRAYICON_H

trayicon/frmtrayicon.ui

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>frmTrayIcon</class>
+ <widget class="QWidget" name="frmTrayIcon">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <widget class="QPushButton" name="btnShow">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>92</width>
+     <height>28</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>显示托盘</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="btnHide">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>50</y>
+     <width>92</width>
+     <height>28</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>隐藏托盘</string>
+   </property>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

trayicon/main.cpp

@@ -0,0 +1,31 @@
+#pragma execution_character_set("utf-8")
+
+#include "frmtrayicon.h"
+#include <QApplication>
+#include <QTextCodec>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    a.setFont(QFont("Microsoft Yahei", 9));
+
+#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
+#if _MSC_VER
+    QTextCodec *codec = QTextCodec::codecForName("gbk");
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+#endif
+    QTextCodec::setCodecForLocale(codec);
+    QTextCodec::setCodecForCStrings(codec);
+    QTextCodec::setCodecForTr(codec);
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+    QTextCodec::setCodecForLocale(codec);
+#endif
+
+    frmTrayIcon w;
+    w.setWindowTitle("托盘图标");
+    w.show();
+
+    return a.exec();
+}

trayicon/main.qrc

@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/">
+        <file>main.ico</file>
+    </qresource>
+</RCC>

trayicon/trayicon.cpp

@@ -0,0 +1,98 @@
+#pragma execution_character_set("utf-8")
+
+#include "trayicon.h"
+#include "qmutex.h"
+#include "qmenu.h"
+#include "qapplication.h"
+#include "qdebug.h"
+
+QScopedPointer<TrayIcon> TrayIcon::self;
+TrayIcon *TrayIcon::Instance()
+{
+    if (self.isNull()) {
+        static QMutex mutex;
+        QMutexLocker locker(&mutex);
+        if (self.isNull()) {
+            self.reset(new TrayIcon);
+        }
+    }
+
+    return self.data();
+}
+
+TrayIcon::TrayIcon(QObject *parent) : QObject(parent)
+{
+    mainWidget = 0;
+    trayIcon = new QSystemTrayIcon(this);
+    connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
+            this, SLOT(iconIsActived(QSystemTrayIcon::ActivationReason)));
+    menu = new QMenu;
+    exitDirect = true;
+}
+
+void TrayIcon::iconIsActived(QSystemTrayIcon::ActivationReason reason)
+{
+    switch (reason) {
+        case QSystemTrayIcon::Trigger:
+        case QSystemTrayIcon::DoubleClick: {
+            mainWidget->showNormal();
+            break;
+        }
+
+        default:
+            break;
+    }
+}
+
+bool TrayIcon::getVisible() const
+{
+    return trayIcon->isVisible();
+}
+
+void TrayIcon::setExitDirect(bool exitDirect)
+{
+    if (this->exitDirect != exitDirect) {
+        this->exitDirect = exitDirect;
+    }
+}
+
+void TrayIcon::setMainWidget(QWidget *mainWidget)
+{
+    this->mainWidget = mainWidget;
+    menu->addAction("主界面", mainWidget, SLOT(showNormal()));
+
+    if (exitDirect) {
+        menu->addAction("退出", this, SLOT(closeAll()));
+    } else {
+        menu->addAction("退出", this, SIGNAL(trayIconExit()));
+    }
+
+    trayIcon->setContextMenu(menu);
+}
+
+void TrayIcon::showMessage(const QString &title, const QString &msg, QSystemTrayIcon::MessageIcon icon, int msecs)
+{
+    trayIcon->showMessage(title, msg, icon, msecs);
+}
+
+void TrayIcon::setIcon(const QString &strIcon)
+{
+    trayIcon->setIcon(QIcon(strIcon));
+}
+
+void TrayIcon::setToolTip(const QString &tip)
+{
+    trayIcon->setToolTip(tip);
+}
+
+void TrayIcon::setVisible(bool visible)
+{
+    trayIcon->setVisible(visible);
+}
+
+void TrayIcon::closeAll()
+{
+    trayIcon->hide();
+    trayIcon->deleteLater();
+    qApp->exit();
+}

trayicon/trayicon.h

@@ -0,0 +1,66 @@
+#ifndef TRAYICON_H
+#define TRAYICON_H
+
+/**
+ * 托盘图标控件 作者:feiyangqingyun(QQ:517216493) 2017-1-8
+ * 1. 可设置托盘图标对应所属主窗体。
+ * 2. 可设置托盘图标。
+ * 3. 可设置提示信息。
+ * 4. 自带右键菜单。
+ */
+
+#include <QObject>
+#include <QSystemTrayIcon>
+
+class QMenu;
+
+#ifdef quc
+class Q_DECL_EXPORT TrayIcon : public QObject
+#else
+class TrayIcon : public QObject
+#endif
+
+{
+    Q_OBJECT
+public:
+    static TrayIcon *Instance();
+    explicit TrayIcon(QObject *parent = 0);
+
+private:
+    static QScopedPointer<TrayIcon> self;
+    QWidget *mainWidget;            //对应所属主窗体
+    QSystemTrayIcon *trayIcon;      //托盘对象
+    QMenu *menu;                    //右键菜单
+    bool exitDirect;                //是否直接退出
+
+private slots:
+    void iconIsActived(QSystemTrayIcon::ActivationReason reason);
+
+public:
+    bool getVisible()       const;
+
+public Q_SLOTS:
+    //设置是否直接退出,如果不是直接退出则发送信号给主界面
+    void setExitDirect(bool exitDirect);
+
+    //设置所属主窗体
+    void setMainWidget(QWidget *mainWidget);
+
+    //显示消息
+    void showMessage(const QString &title, const QString &msg,
+                     QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::Information, int msecs = 5000);
+
+    //设置图标
+    void setIcon(const QString &strIcon);
+    //设置提示信息
+    void setToolTip(const QString &tip);
+    //设置是否可见
+    void setVisible(bool visible);
+    //退出所有
+    void closeAll();
+
+Q_SIGNALS:
+    void trayIconExit();
+};
+
+#endif // TRAYICON_H

trayicon/trayicon.pro

@@ -0,0 +1,19 @@
+QT += core gui network
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+greaterThan(QT_MAJOR_VERSION, 5): QT += core5compat
+
+TARGET      = trayicon
+TEMPLATE    = app
+DESTDIR     = $$PWD/../bin
+CONFIG      += warn_off
+
+SOURCES     += main.cpp
+SOURCES     += frmtrayicon.cpp
+SOURCES     += trayicon.cpp
+
+HEADERS     += frmtrayicon.h
+HEADERS     += trayicon.h
+
+FORMS       += frmtrayicon.ui
+RESOURCES   += main.qrc
+