对于自定义默认后退按钮操作,您需要覆盖NavBar组件的backButtonClick()方法.
第1步：在“custom-class.ts”中导入Navbar组件.创建auxMethod以覆盖默认行为并在ionViewDidLoad方法中调用.
import { Navbar } from 'ionic-angular';
import { ViewChild } from '@angular/core';
export class myCustomClass {
@ViewChild(Navbar) navBar: Navbar;
ionViewDidLoad() {
this.setBackButtonAction()
}
//Method to override the default back button action
setBackButtonAction(){
this.navBar.backButtonClick = () => {
//Write here wherever you wanna do
this.navCtrl.pop()
}
}
}
此代码已在离子3中进行了测试.
