import {IonicApp} from 'ionic-angular';
constructor(
private ionicApp: IonicApp
) {}
let activeModal=this.ionicApp._modalPortal.getActive();
if(activeModal){
console.log("model is openning");
activeModal.dismiss();
return;
}
可于雙擊返回退出app時(shí)，處理modal迎献；
