update

example/src/component/FileWatcher.cpp

@@ -0,0 +1,26 @@
+#include "FileWatcher.h"
+
+#include <qDebug>
+
+FileWatcher::FileWatcher(QObject *parent)
+    : QObject{parent}
+{
+    connect(&_watcher, &QFileSystemWatcher::fileChanged, this, [=](const QString &path){
+        Q_EMIT fileChanged();
+        clean();
+        _watcher.addPath(_path);
+    });
+    connect(this,&FileWatcher::pathChanged,this,[=](){
+        clean();
+        _watcher.addPath(_path.replace("file:///",""));
+    });
+    if(!_path.isEmpty()){
+        _watcher.addPath(_path);
+    }
+}
+
+void FileWatcher::clean(){
+    foreach (const QString &item,  _watcher.files()) {
+        _watcher.removePath(item);
+    }
+}

example/src/component/FileWatcher.h

@@ -0,0 +1,21 @@
+#ifndef FILEWATCHER_H
+#define FILEWATCHER_H
+
+#include <QObject>
+#include <QFileSystemWatcher>
+#include "src/stdafx.h"
+
+class FileWatcher : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY_AUTO(QString,path);
+public:
+    explicit FileWatcher(QObject *parent = nullptr);
+    Q_SIGNAL void fileChanged();
+private:
+    void clean();
+private:
+    QFileSystemWatcher _watcher;
+};
+
+#endif // FILEWATCHER_H

example/src/main.cpp

@@ -7,11 +7,12 @@
 #include <FramelessHelper/Quick/framelessquickmodule.h>
 #include <FramelessHelper/Core/private/framelessconfig_p.h>
 #include "src/component/CircularReveal.h"
+#include "src/component/FileWatcher.h"
 #include "AppInfo.h"
 
 FRAMELESSHELPER_USE_NAMESPACE
 
-int main(int argc, char *argv[])
+    int main(int argc, char *argv[])
 {
     //将样式设置为Basic，不然会导致组件显示异常
     qputenv("QT_QUICK_CONTROLS_STYLE","Basic");
@@ -41,6 +42,7 @@ int main(int argc, char *argv[])
     engine.addImportPath("qrc:/"); // 让静态资源可以被QML引擎搜索到
 #endif
     qmlRegisterType<CircularReveal>("example", 1, 0, "CircularReveal");
+    qmlRegisterType<FileWatcher>("example", 1, 0, "FileWatcher");
     appInfo->init(&engine);
     const QUrl url(QStringLiteral("qrc:/example/qml/App.qml"));
     QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,