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官方文档如官网文档所示，常用的生命周期有如下6个：EventDescionViewDidLoad当页面加载的时候触发，仅在页面创建的时候触发一次，如果被缓存了，那么下次再打开这个页面则不会触发ionViewWillEnter顾名思义，当将要进入页面时触发ionViewDi

This problem is solved by using the Taobao image。    Install Taobao image    E:>npm install -g cnpm --registry=https://registry.npm.taobao.org    First：Skip NPM installation

import { Injectable } from "@angular/core";import { Http, Headers } from '@angular/http';import 'rxjs/add/operator/timeout';import 'rxjs/add/operator/map';import 'rxjs/add/operator/toPromise';@

// angular生命周期 // ngOnChanges(changes) {// console.log('ngOnChanges');// }// ngOnInit() {// console.log('ngOnInit');// }// ngDoCheck() {// co

问题描述最近在学习过程中发现ionic2项目运行在真机上，启动页后会有3-5秒的白屏时间，用户体验不是太好。解决过程一、安装Cordova splash screen插件[html] view plain copy$ cd myapp  $ ionic plugin add org.apache.c

import android.app.Activity;import android.content.Context;public class FakeR { private Context context; private String packageName; public FakeR(Activity activity) { context =

import { Injectable } from "@angular/core";import { Storage } from '@ionic/storage';@Injectable()export class StorageHelper {    constructor(public storage: Storage) { }    GET(n

GetLongitude(mylongitude) { mylongitude = Math.abs(mylongitude); let v1 = Math.floor(mylongitude);//度 let v2 = Math.floor((mylongitude - v1) * 60);//分 let v3 = Math.rou