constructor(
public appCtrl: App,
public platform: Platform) {
this.registBackClick();
}
// 返回按钮
registBackClick() {
//registerBackButtonAction是系统自带的方法
this.platform.registerBackButtonAction(() => {
//获取NavController
let activeNav: NavController = this.appCtrl.getActiveNavs()[0];
//如果可以返回上一页,则执行pop
if (activeNav.canGoBack()) {
activeNav.pop();
}
});
}