只允许弹出一个应用

main.js

@@ -117,6 +117,15 @@ function createNotification(user) {
     mainWindow.focus();
 }
 
+// 处理单实例
+app.makeSingleInstance((commandLine, workingDirectory) => {
+    // Someone tried to run a second instance, we should focus our window.
+    if (mainWindow) {
+        if (mainWindow.isMinimized()) mainWindow.restore();
+        mainWindow.focus();
+    }
+});
+
 app.on('ready', () => {
     const env = process.argv.find((arg) => arg.startsWith('--env='))?.split('=')[1];
     if (env === 'development') {