离子离子菜单按钮在第一次加载时不起作用

Question

<ion-menu-button autoHide="false"></ion-menu-button>

在第一次加载它给出一个错误：

zone.js:1102 Unhandled Promise rejection: Cannot read properties of undefined (reading 'offsetWidth') ; Zone: <root> ; Task: Promise.then ; Value: TypeError: Cannot read properties of undefined (reading 'offsetWidth')

如果我们重新加载然后工作正常请帮我修复它...

Answer 1

Aggiungendo 'this.menuCtrl.enable(true);' dovrebbe funzionare

import { MenuController } from '@ionic/angular'; 
.......
constructor(private route: Router,
            private menuCtrl: MenuController) {
this.menuCtrl.enable(true);
}