this.app.getRootNav()
and this.navCtrl.push()?
In fact, the main reason is that I don’t understand the relationship and difference between the App component and Nav?
Also, tabs does not refresh when the component switches tab. Is there any way to refresh the page when switching?
Ask for advice from the great god.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
第二个问题，你可以尝试一下官方API中NavController的生命周期，加入ionViewDidEnter(){}
