ionic2 pop 传参数

one page

 // callback...
 myCallbackFunction = function(_params) {
     return new Promise((resolve, reject) => {
             resolve();
         });
 }

 // push page...
 this.navController.push(OtherPageComponent, {
    callback: myCallbackFunction
});

in the OtherPageComponent

 this.callback = this.navParams.get("callback")

 this.callback(param).then(()=>{
    this.navController.pop();
 });