diff --git a/mainwindow.cpp b/mainwindow.cpp
index bbce67b..2bb600a 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -56,6 +56,7 @@
 #include "yy/togglesettingseditor.h"
 #include "components/snackbar.h"
 #include "xx/qtmaterialsnackbar.h"
+#include "xx/qtmaterialdialog.h"
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent),
@@ -210,11 +211,31 @@ MainWindow::MainWindow(QWidget *parent)
     layout->addStretch();
     */
 
+    {
+        QtMaterialDialog *mdlg = new QtMaterialDialog;
+        mdlg->setParent(this);
+
+        QVBoxLayout *dl = new QVBoxLayout;
+        dl->addWidget(new QPushButton("Hello"));
+        mdlg->setWindowLayout(dl);
+
+        QPushButton *b1 = new QPushButton("1");
+        QPushButton *b2 = new QPushButton("2");
+        b1->setParent(this);
+        b2->setParent(this);
+        b1->setGeometry(10, 160, 30, 20);
+        b2->setGeometry(10, 190, 30, 20);
+
+        connect(b1, SIGNAL(pressed()), mdlg, SLOT(showDialog()));
+        connect(b2, SIGNAL(pressed()), mdlg, SLOT(hideDialog()));
+    }
+
+
     Drawer *drwer = new Drawer;
     drwer->setParent(this);
 
     Dialog *dlg = new Dialog;
-    //dlg->setParent(this);
+    dlg->setParent(this);
 
     //dlg->windowLayout()->addWidget(new QPushButton("Hello"));
     QVBoxLayout *dl = new QVBoxLayout;
@@ -224,8 +245,8 @@ MainWindow::MainWindow(QWidget *parent)
     QPushButton *bbbtn = new QPushButton("Show dialog");
     layout->addWidget(bbbtn);
 
-    //connect(bbbtn, SIGNAL(pressed()), dlg, SLOT(showDialog()));
-    connect(bbbtn, SIGNAL(pressed()), drwer, SLOT(openDrawer()));
+    connect(bbbtn, SIGNAL(pressed()), dlg, SLOT(showDialog()));
+    //connect(bbbtn, SIGNAL(pressed()), drwer, SLOT(openDrawer()));
 
     QtMaterialIconMenu *im = new QtMaterialIconMenu(QIcon("../qt-material-widgets/ic_star_black_24px.svg"));
     layout->addWidget(im);
@@ -268,6 +289,7 @@ MainWindow::MainWindow(QWidget *parent)
     }
 
     QtMaterialSelectField *sfp = new QtMaterialSelectField;
+    sfp->setPlaceholderText("Favorite language");
     //sfp->setBackgroundColor(Qt::white);
     layout->addWidget(sfp);
     layout->setAlignment(sfp, Qt::AlignCenter);
diff --git a/qt-material-widgets.pro b/qt-material-widgets.pro
index 15588d7..4907ddb 100644
--- a/qt-material-widgets.pro
+++ b/qt-material-widgets.pro
@@ -136,7 +136,9 @@ SOURCES += main.cpp\
     yy/togglesettingseditor.cpp \
     xx/qtmaterialsnackbar.cpp \
     xx/qtmaterialsnackbar_internal.cpp \
-    xxlib/qtmaterialstatetransition.cpp
+    xxlib/qtmaterialstatetransition.cpp \
+    xx/qtmaterialdialog.cpp \
+    xx/qtmaterialdialog_internal.cpp
 
 HEADERS  += mainwindow.h \
     components/appbar.h \
@@ -311,7 +313,10 @@ HEADERS  += mainwindow.h \
     xx/qtmaterialsnackbar_p.h \
     xx/qtmaterialsnackbar_internal.h \
     xxlib/qtmaterialstatetransitionevent.h \
-    xxlib/qtmaterialstatetransition.h
+    xxlib/qtmaterialstatetransition.h \
+    xx/qtmaterialdialog.h \
+    xx/qtmaterialdialog_internal.h \
+    xx/qtmaterialdialog_p.h
 
 RESOURCES += \
     resources.qrc
diff --git a/xx/qtmaterialcollapsiblemenu.cpp b/xx/qtmaterialcollapsiblemenu.cpp
index eeef39e..269e8c4 100644
--- a/xx/qtmaterialcollapsiblemenu.cpp
+++ b/xx/qtmaterialcollapsiblemenu.cpp
@@ -48,6 +48,12 @@ void QtMaterialCollapsibleMenuPrivate::init()
     scrollArea->setWidgetResizable(true);
     scrollArea->setWidget(mainWidget);
     scrollArea->setVerticalScrollBar(scrollBar);
+
+    scrollArea->setAutoFillBackground(true);
+    QPalette p(scrollArea->palette());
+    p.setColor(QPalette::Background, Qt::white);
+    scrollArea->setPalette(p);
+
     scrollBar->setHideOnMouseOut(false);
 
     proxyStack->addWidget(scrollArea);
diff --git a/xx/qtmaterialcollapsiblemenu_internal.cpp b/xx/qtmaterialcollapsiblemenu_internal.cpp
index 49dc5ff..f144daf 100644
--- a/xx/qtmaterialcollapsiblemenu_internal.cpp
+++ b/xx/qtmaterialcollapsiblemenu_internal.cpp
@@ -30,6 +30,7 @@ QtMaterialCollapsibleMenuStateMachine::QtMaterialCollapsibleMenuStateMachine(
     setInitialState(m_collapsedState);
 
     QtMaterialStateTransition *transition;
+    QPropertyAnimation *animation;
 
     transition = new QtMaterialStateTransition(CollapsibleMenuExpand);
     transition->setTargetState(m_expandedState);
@@ -43,10 +44,17 @@ QtMaterialCollapsibleMenuStateMachine::QtMaterialCollapsibleMenuStateMachine(
 
     m_expandYAnimation->setTargetObject(m_proxy);
     m_expandYAnimation->setPropertyName("yScale");
-    m_expandYAnimation->setDuration(500);
+    m_expandYAnimation->setDuration(600);
     m_expandYAnimation->setEasingCurve(QEasingCurve::OutElastic);
     transition->addAnimation(m_expandYAnimation);
 
+    animation = new QPropertyAnimation(this);
+    animation->setTargetObject(m_proxy);
+    animation->setPropertyName("opacity");
+    animation->setDuration(220);
+    animation->setEasingCurve(QEasingCurve::OutQuad);
+    transition->addAnimation(animation);
+
     transition = new QtMaterialStateTransition(CollapsibleMenuCollapse);
     transition->setTargetState(m_collapsedState);
     m_expandedState->addTransition(transition);
@@ -71,11 +79,11 @@ QtMaterialCollapsibleMenuStateMachine::QtMaterialCollapsibleMenuStateMachine(
     m_collapsedState->assignProperty(m_proxy, "yScale", 0.05);
     m_collapsedState->assignProperty(m_proxy, "opacity", 0);
 
-    QPropertyAnimation *animation = new QPropertyAnimation(this);
+    animation = new QPropertyAnimation(this);
     animation->setTargetObject(m_proxy);
     animation->setPropertyName("opacity");
-    animation->setDuration(160);
-    addDefaultAnimation(animation);
+    animation->setDuration(140);
+    transition->addAnimation(animation);
 
     connect(m_expandedState, SIGNAL(propertiesAssigned()),
             m_menu, SLOT(setOpaque()));
diff --git a/xx/qtmaterialcollapsiblemenu_internal.h b/xx/qtmaterialcollapsiblemenu_internal.h
index 0ee6876..582684e 100644
--- a/xx/qtmaterialcollapsiblemenu_internal.h
+++ b/xx/qtmaterialcollapsiblemenu_internal.h
@@ -94,10 +94,6 @@ public:
     inline void setOpacity(qreal opacity);
     inline qreal opacity() const;
 
-//signals:
-//    void expand();
-//    void collapse();
-
 protected:
     void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
 
diff --git a/xx/qtmaterialdialog.cpp b/xx/qtmaterialdialog.cpp
new file mode 100644
index 0000000..f572402
--- /dev/null
+++ b/xx/qtmaterialdialog.cpp
@@ -0,0 +1,166 @@
+#include "xx/qtmaterialdialog.h"
+#include "xx/qtmaterialdialog_p.h"
+#include <QStackedLayout>
+#include <QGraphicsDropShadowEffect>
+#include <QStateMachine>
+#include <QState>
+#include <QApplication>
+#include <QPropertyAnimation>
+#include <QPainter>
+#include "xx/qtmaterialdialog_internal.h"
+#include "xxlib/qtmaterialstatetransition.h"
+
+/*!
+ *  \class QtMaterialDialogPrivate
+ *  \internal
+ */
+
+QtMaterialDialogPrivate::QtMaterialDialogPrivate(QtMaterialDialog *q)
+    : q_ptr(q)
+{
+}
+
+QtMaterialDialogPrivate::~QtMaterialDialogPrivate()
+{
+}
+
+void QtMaterialDialogPrivate::init()
+{
+    Q_Q(QtMaterialDialog);
+
+    dialogWindow = new QtMaterialDialogWindow(q);
+    proxyStack   = new QStackedLayout;
+    stateMachine = new QStateMachine(q);
+    proxy        = new QtMaterialDialogProxy(dialogWindow, proxyStack, q);
+
+    QVBoxLayout *layout = new QVBoxLayout;
+    q->setLayout(layout);
+
+    QWidget *widget = new QWidget;
+    widget->setLayout(proxyStack);
+    widget->setMinimumWidth(400);
+
+    QGraphicsDropShadowEffect *effect = new QGraphicsDropShadowEffect;
+    effect->setColor(QColor(0, 0, 0, 200));
+    effect->setBlurRadius(64);
+    effect->setOffset(0, 13);
+    widget->setGraphicsEffect(effect);
+
+    layout->addWidget(widget);
+    layout->setAlignment(widget, Qt::AlignCenter);
+
+    proxyStack->addWidget(dialogWindow);
+    proxyStack->addWidget(proxy);
+    proxyStack->setCurrentIndex(1);
+
+    q->setAttribute(Qt::WA_TransparentForMouseEvents);
+
+    QState *hiddenState = new QState;
+    QState *visibleState = new QState;
+
+    stateMachine->addState(hiddenState);
+    stateMachine->addState(visibleState);
+    stateMachine->setInitialState(hiddenState);
+
+    QtMaterialStateTransition *transition;
+
+    transition = new QtMaterialStateTransition(DialogShowTransition);
+    transition->setTargetState(visibleState);
+    hiddenState->addTransition(transition);
+
+    transition = new QtMaterialStateTransition(DialogHideTransition);
+    transition->setTargetState(hiddenState);
+    visibleState->addTransition(transition);
+
+    visibleState->assignProperty(proxy, "opacity", 1);
+    visibleState->assignProperty(effect, "color", QColor(0, 0, 0, 200));
+    visibleState->assignProperty(dialogWindow, "offset", 0);
+    hiddenState->assignProperty(proxy, "opacity", 0);
+    hiddenState->assignProperty(effect, "color", QColor(0, 0, 0, 0));
+    hiddenState->assignProperty(dialogWindow, "offset", 200);
+
+    QPropertyAnimation *animation;
+
+    animation = new QPropertyAnimation(proxy, "opacity", q);
+    animation->setDuration(280);
+    stateMachine->addDefaultAnimation(animation);
+
+    animation = new QPropertyAnimation(effect, "color", q);
+    animation->setDuration(280);
+    stateMachine->addDefaultAnimation(animation);
+
+    animation = new QPropertyAnimation(dialogWindow, "offset", q);
+    animation->setDuration(280);
+    animation->setEasingCurve(QEasingCurve::OutCirc);
+    stateMachine->addDefaultAnimation(animation);
+
+    QObject::connect(visibleState, SIGNAL(propertiesAssigned()),
+                     proxy, SLOT(makeOpaque()));
+    QObject::connect(hiddenState, SIGNAL(propertiesAssigned()),
+                     proxy, SLOT(makeTransparent()));
+
+    stateMachine->start();
+    QCoreApplication::processEvents();
+}
+
+/*!
+ *  \class QtMaterialDialog
+ */
+
+QtMaterialDialog::QtMaterialDialog(QWidget *parent)
+    : QtMaterialOverlayWidget(parent),
+      d_ptr(new QtMaterialDialogPrivate(this))
+{
+    d_func()->init();
+}
+
+QtMaterialDialog::~QtMaterialDialog()
+{
+}
+
+QLayout *QtMaterialDialog::windowLayout() const
+{
+    Q_D(const QtMaterialDialog);
+
+    return d->dialogWindow->layout();
+}
+
+void QtMaterialDialog::setWindowLayout(QLayout *layout)
+{
+    Q_D(QtMaterialDialog);
+
+    d->dialogWindow->setLayout(layout);
+}
+
+void QtMaterialDialog::showDialog()
+{
+    Q_D(QtMaterialDialog);
+
+    d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(DialogShowTransition));
+}
+
+void QtMaterialDialog::hideDialog()
+{
+    Q_D(QtMaterialDialog);
+
+    d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(DialogHideTransition));
+    setAttribute(Qt::WA_TransparentForMouseEvents);
+    d->proxyStack->setCurrentIndex(1);
+}
+
+void QtMaterialDialog::paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event)
+
+    Q_D(QtMaterialDialog);
+
+    QPainter painter(this);
+
+    QBrush brush;
+    brush.setStyle(Qt::SolidPattern);
+    brush.setColor(Qt::black);
+    painter.setBrush(brush);
+    painter.setPen(Qt::NoPen);
+    painter.setOpacity(d->proxy->opacity()/2.4);
+    painter.drawRect(rect());
+}
diff --git a/xx/qtmaterialdialog.h b/xx/qtmaterialdialog.h
new file mode 100644
index 0000000..3cf8f2a
--- /dev/null
+++ b/xx/qtmaterialdialog.h
@@ -0,0 +1,35 @@
+#ifndef QTMATERIALDIALOG_H
+#define QTMATERIALDIALOG_H
+
+#include <QScopedPointer>
+#include "xxlib/qtmaterialoverlaywidget.h"
+
+class QLayout;
+class QtMaterialDialogPrivate;
+
+class QtMaterialDialog : public QtMaterialOverlayWidget
+{
+    Q_OBJECT
+
+public:
+    explicit QtMaterialDialog(QWidget *parent = 0);
+    ~QtMaterialDialog();
+
+    QLayout *windowLayout() const;
+    void setWindowLayout(QLayout *layout);
+
+protected slots:
+    void showDialog();
+    void hideDialog();
+
+protected:
+    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
+
+    const QScopedPointer<QtMaterialDialogPrivate> d_ptr;
+
+private:
+    Q_DISABLE_COPY(QtMaterialDialog)
+    Q_DECLARE_PRIVATE(QtMaterialDialog)
+};
+
+#endif // QTMATERIALDIALOG_H
diff --git a/xx/qtmaterialdialog_internal.cpp b/xx/qtmaterialdialog_internal.cpp
new file mode 100644
index 0000000..ba1e40d
--- /dev/null
+++ b/xx/qtmaterialdialog_internal.cpp
@@ -0,0 +1,127 @@
+#include "xx/qtmaterialdialog_internal.h"
+#include <QPainter>
+#include <QPixmap>
+#include <QEvent>
+#include <QStackedLayout>
+#include "xx/qtmaterialdialog.h"
+
+/*!
+ *  \class QtMaterialDialogProxy
+ *  \internal
+ */
+
+QtMaterialDialogProxy::QtMaterialDialogProxy(
+        QtMaterialDialogWindow *source,
+        QStackedLayout         *layout,
+        QtMaterialDialog       *dialog,
+        QWidget                *parent)
+    : QWidget(parent),
+      m_source(source),
+      m_layout(layout),
+      m_dialog(dialog),
+      m_opacity(0),
+      m_mode(Transparent)
+{
+}
+
+QtMaterialDialogProxy::~QtMaterialDialogProxy()
+{
+}
+
+void QtMaterialDialogProxy::setOpacity(qreal opacity)
+{
+    m_opacity = opacity;
+    m_mode = SemiTransparent;
+    update();
+    m_dialog->update();
+}
+
+
+void QtMaterialDialogProxy::makeOpaque()
+{
+    m_dialog->setAttribute(Qt::WA_TransparentForMouseEvents, false);
+    m_layout->setCurrentIndex(0);
+    m_opacity = 1.0;
+    m_mode = Opaque;
+    update();
+}
+
+void QtMaterialDialogProxy::makeTransparent()
+{
+    m_opacity = 0.0;
+    m_mode = Transparent;
+    update();
+}
+
+QSize QtMaterialDialogProxy::sizeHint() const
+{
+    return m_source->sizeHint();
+}
+
+bool QtMaterialDialogProxy::event(QEvent *event)
+{
+    const QEvent::Type type = event->type();
+
+    if (QEvent::Move == type || QEvent::Resize == type) {
+        m_source->setGeometry(geometry());
+    }
+    return QWidget::event(event);
+}
+
+void QtMaterialDialogProxy::paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event)
+
+    QPainter painter(this);
+
+    if (Transparent == m_mode) {
+        return;
+    } else if (Opaque != m_mode) {
+        painter.setOpacity(m_opacity);
+    }
+    QPixmap pm = m_source->grab(m_source->rect());
+    painter.drawPixmap(0, 0, pm);
+}
+
+/*!
+ *  \class QtMaterialDialogWindow
+ *  \internal
+ */
+
+QtMaterialDialogWindow::QtMaterialDialogWindow(
+        QtMaterialDialog *dialog,
+        QWidget          *parent)
+    : QWidget(parent),
+      m_dialog(dialog)
+{
+}
+
+QtMaterialDialogWindow::~QtMaterialDialogWindow()
+{
+}
+
+void QtMaterialDialogWindow::setOffset(int offset)
+{
+    QMargins margins = m_dialog->layout()->contentsMargins();
+    margins.setBottom(offset);
+    m_dialog->layout()->setContentsMargins(margins);
+}
+
+int QtMaterialDialogWindow::offset() const
+{
+    return m_dialog->layout()->contentsMargins().bottom();
+}
+
+void QtMaterialDialogWindow::paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event)
+
+    QPainter painter(this);
+
+    QBrush brush;
+    brush.setStyle(Qt::SolidPattern);
+    brush.setColor(Qt::white);
+    painter.setPen(Qt::NoPen);
+    painter.setBrush(brush);
+    painter.drawRect(rect());
+}
diff --git a/xx/qtmaterialdialog_internal.h b/xx/qtmaterialdialog_internal.h
new file mode 100644
index 0000000..903c026
--- /dev/null
+++ b/xx/qtmaterialdialog_internal.h
@@ -0,0 +1,79 @@
+#ifndef QTMATERIALDIALOG_INTERNAL_H
+#define QTMATERIALDIALOG_INTERNAL_H
+
+#include <QWidget>
+
+class QStackedLayout;
+class QtMaterialDialog;
+class QtMaterialDialogWindow;
+
+class QtMaterialDialogProxy : public QWidget
+{
+    Q_OBJECT
+
+    Q_PROPERTY(qreal opacity WRITE setOpacity READ opacity)
+
+    enum TransparencyMode {
+        Transparent,
+        SemiTransparent,
+        Opaque,
+    };
+
+public:
+    QtMaterialDialogProxy(QtMaterialDialogWindow *source,
+                          QStackedLayout *layout,
+                          QtMaterialDialog *dialog,
+                          QWidget *parent = 0);
+    ~QtMaterialDialogProxy();
+
+    void setOpacity(qreal opacity);
+    inline qreal opacity() const;
+
+protected slots:
+    void makeOpaque();
+    void makeTransparent();
+
+    QSize sizeHint() const Q_DECL_OVERRIDE;
+
+protected:
+    bool event(QEvent *event) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
+
+private:
+    Q_DISABLE_COPY(QtMaterialDialogProxy)
+
+    QtMaterialDialogWindow *const m_source;
+    QStackedLayout         *const m_layout;
+    QtMaterialDialog       *const m_dialog;
+    qreal                         m_opacity;
+    TransparencyMode              m_mode;
+};
+
+inline qreal QtMaterialDialogProxy::opacity() const
+{
+    return m_opacity;
+}
+
+class QtMaterialDialogWindow : public QWidget
+{
+    Q_OBJECT
+
+    Q_PROPERTY(int offset WRITE setOffset READ offset)
+
+public:
+    explicit QtMaterialDialogWindow(QtMaterialDialog *dialog, QWidget *parent = 0);
+    ~QtMaterialDialogWindow();
+
+    void setOffset(int offset);
+    int offset() const;
+
+protected:
+    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
+
+private:
+    Q_DISABLE_COPY(QtMaterialDialogWindow)
+
+    QtMaterialDialog *const m_dialog;
+};
+
+#endif // QTMATERIALDIALOG_INTERNAL_H
diff --git a/xx/qtmaterialdialog_p.h b/xx/qtmaterialdialog_p.h
new file mode 100644
index 0000000..b10088e
--- /dev/null
+++ b/xx/qtmaterialdialog_p.h
@@ -0,0 +1,30 @@
+#ifndef QTMATERIALDIALOG_P_H
+#define QTMATERIALDIALOG_P_H
+
+#include <QtGlobal>
+
+class QStateMachine;
+class QtMaterialDialog;
+class QStackedLayout;
+class QtMaterialDialogWindow;
+class QtMaterialDialogProxy;
+
+class QtMaterialDialogPrivate
+{
+    Q_DISABLE_COPY(QtMaterialDialogPrivate)
+    Q_DECLARE_PUBLIC(QtMaterialDialog)
+
+public:
+    QtMaterialDialogPrivate(QtMaterialDialog *q);
+    ~QtMaterialDialogPrivate();
+
+    void init();
+
+    QtMaterialDialog       *const q_ptr;
+    QtMaterialDialogWindow *dialogWindow;
+    QStackedLayout         *proxyStack;
+    QStateMachine          *stateMachine;
+    QtMaterialDialogProxy  *proxy;
+};
+
+#endif // QTMATERIALDIALOG_P_H
diff --git a/xx/qtmaterialiconmenu.cpp b/xx/qtmaterialiconmenu.cpp
index d998b88..0a41741 100644
--- a/xx/qtmaterialiconmenu.cpp
+++ b/xx/qtmaterialiconmenu.cpp
@@ -112,7 +112,7 @@ void QtMaterialIconMenu::collapseDelayed()
     Q_D(QtMaterialIconMenu);
 
     if (d->autoCollapse) {
-        QTimer::singleShot(200, d->menu, SLOT(collapse()));
+        QTimer::singleShot(110, d->menu, SLOT(collapse()));
     }
 }
 
diff --git a/xx/qtmaterialscrollbar.cpp b/xx/qtmaterialscrollbar.cpp
index 05a61a1..7b0dfc1 100644
--- a/xx/qtmaterialscrollbar.cpp
+++ b/xx/qtmaterialscrollbar.cpp
@@ -94,7 +94,7 @@ QColor QtMaterialScrollBar::canvasColor() const
     Q_D(const QtMaterialScrollBar);
 
     if (d->useThemeColors || !d->canvasColor.isValid()) {
-        return QtMaterialStyle::instance().themeColor("canvas");
+        return parentWidget()->palette().color(backgroundRole());
     } else {
         return d->canvasColor;
     }
@@ -182,7 +182,7 @@ void QtMaterialScrollBar::paintEvent(QPaintEvent *event)
 
     painter.drawRect(rect().marginsRemoved(margins));
 
-    const qreal q = h / static_cast<qreal>(maximum() - minimum() + pageStep());
+    const qreal q = h / static_cast<qreal>(maximum()-minimum()+pageStep()-1);
 
     QRect handle = Qt::Horizontal == orientation()
             ? QRect(sliderPosition()*q, y, pageStep()*q, h)
diff --git a/xx/qtmaterialselectfield.cpp b/xx/qtmaterialselectfield.cpp
index 86ff81f..25299d1 100644
--- a/xx/qtmaterialselectfield.cpp
+++ b/xx/qtmaterialselectfield.cpp
@@ -265,7 +265,7 @@ void QtMaterialSelectField::collapseDelayed()
 {
     Q_D(QtMaterialSelectField);
 
-    QTimer::singleShot(200, d->menu, SLOT(collapse()));
+    QTimer::singleShot(100, d->menu, SLOT(collapse()));
 }
 
 /*!
diff --git a/xxlib/qtmaterialstatetransitionevent.h b/xxlib/qtmaterialstatetransitionevent.h
index f985cc3..1c64ec6 100644
--- a/xxlib/qtmaterialstatetransitionevent.h
+++ b/xxlib/qtmaterialstatetransitionevent.h
@@ -21,7 +21,10 @@ enum QtMaterialStateTransitionType {
     SliderChangedFromMinimum,
     SliderNoFocusMouseEnter,
     SliderNoFocusMouseLeave,
-
+    // Dialog
+    DialogShowTransition,
+    DialogHideTransition,
+    //
     MaxTransitionType = 65535
 };