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();
}
});
}