我们正在使用Ionic Pro软件包来生成Android版本。
问题：
应用启动速度非常慢-大约需要35秒才能进入platform.ready（）函数。并且启动画面花了大约40秒。
长时间延迟后，它会打开应用-有时会花费超过45秒的时间。
如何减少这个时间？这应该会在3-4秒内打开。
这是ionic.info的输出
dell@dell-OptiPlex-3050:~/git/bob-app$ ionic info
✔ Gathering environment info - done!
Ionic:
ionic (Ionic CLI) : 4.0.6 (/usr/local/lib/node_modules/ionic)
Ionic Framework : ionic-angular 3.9.2
@ionic/app-scripts : 3.1.11
Cordova:
cordova (Cordova CLI) : 8.0.0
Cordova Platforms : android 7.0.0
System:
NodeJS : v10.7.0 (/usr/local/bin/node)
npm : 6.3.0
OS : Linux 4.15
Environment:
ANDROID_HOME : not set
app.component.ts包含
constructor(
public platform : Platform,
public statusBar : StatusBar,
public splashScreen : SplashScreen,
public localStorage : Storage,
public translate : TranslateService,
public toastCtrl : ToastController,
public network : Network) {
//this.translate.use('en');
this.initializeApp();
}
initializeApp() {
var self = this;
self.platform.ready().then(() => {
//checkNetworkStatus function for check network
self.checkNetworkStatus();
// to hide splash screen on time
setTimeout(() => {
this.splashScreen.hide();
}, 100);
//comment this befour generating build
// Okay, so the platform is ready and our plugins are available.
// Here you can do any higher level native things you might need.
self.statusBar.styleDefault();
self.splashScreen.hide();
});
.............
.............
package.json文件
{
"name": "RBAPP",
"version": "0.0.10",
"author": "CCT",
"homepage": "http://##########/",
"private": true,
"scripts": {
"clean": "ionic-app-scripts clean",
"build": "ionic-app-scripts build",
"lint": "ionic-app-scripts lint",
"ionic:build": "ionic-app-scripts build",
"ionic:serve": "ionic-app-scripts serve"
},
"dependencies": {
"@angular/common": "5.0.1",
"@angular/compiler": "5.0.1",
"@angular/compiler-cli": "5.0.1",
"@angular/core": "5.0.1",
"@angular/forms": "5.0.1",
"@angular/http": "5.0.1",
"@angular/platform-browser": "5.0.1",
"@angular/platform-browser-dynamic": "5.0.1",
"@ionic-native/clipboard": "4.11.0",
"@ionic-native/core": "4.11.0",
"@ionic-native/file": "4.11.0",
"@ionic-native/image-picker": "^4.11.0",
"@ionic-native/network": "4.11.0",
"@ionic-native/splash-screen": "4.11.0",
"@ionic-native/status-bar": "4.11.0",
"@ionic/storage": "2.1.3",
"@ngx-translate/core": "^9.1.1",
"@ngx-translate/http-loader": "^3.0.1",
"cordova-android": "^7.1.1",
"cordova-clipboard": "^1.2.1",
"cordova-ios": "4.5.5",
"cordova-plugin-device": "^2.0.2",
"cordova-plugin-file": "^6.0.1",
"cordova-plugin-firebase": "^1.0.5",
"cordova-plugin-ionic-keyboard": "^2.0.5",
"cordova-plugin-ionic-webview": "^1.1.19",
"cordova-plugin-network-information": "^2.0.1",
"cordova-plugin-splashscreen": "^5.0.2",
"cordova-plugin-telerik-imagepicker": "^2.2.2",
"cordova-plugin-whitelist": "^1.3.3",
"firebase": "^5.3.1",
"firebaseui": "^2.7.0",
"ionic-angular": "3.9.2",
"ionic-img-viewer": "^2.9.0",
"ionic-select-searchable": "^2.8.1",
"ionic2-super-tabs": "^4.2.2",
"ionicons": "3.0.0",
"ngx-color-picker": "^5.3.8",
"rxjs": "5.5.2",
"sw-toolbox": "3.6.0",
"zone.js": "0.8.18"
},
"devDependencies": {
"@ionic/app-scripts": "3.1.11",
"typescript": "2.4.2"
},
"description": "An Ionic project",
"cordova": {
"plugins": {
"cordova-plugin-network-information": {},
"cordova-plugin-file": {},
"cordova-plugin-firebase": {},
"cordova-plugin-whitelist": {},
"cordova-plugin-device": {},
"cordova-plugin-splashscreen": {},
"cordova-plugin-ionic-webview": {},
"cordova-plugin-ionic-keyboard": {},
"cordova-clipboard": {},
"cordova-plugin-telerik-imagepicker": {
"PHOTO_LIBRARY_USAGE_DESCRIPTION": "Product images"
}
},
"platforms": [
"android"
]
}
}
config.xml文件
<?xml version='1.0' encoding='utf-8'?>
<widget id="abcd.test.android" version="0.0.16" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
<name>RBAPP</name>
<description>RBAPP</description>
<author email="info@#####.com" href="http://########.com/">RBAPP Team</author>
<content src="index.html" />
<access origin="*" />
<allow-intent href="http://*/*" />
<allow-intent href="https://*/*" />
<allow-intent href="tel:*" />
<allow-intent href="sms:*" />
<allow-intent href="mailto:*" />
<allow-intent href="geo:*" />
<platform name="android">
<allow-intent href="market:*" />
<icon density="ldpi" src="resources/android/icon/drawable-ldpi-icon.png" />
<icon density="mdpi" src="resources/android/icon/drawable-mdpi-icon.png" />
<icon density="hdpi" src="resources/android/icon/drawable-hdpi-icon.png" />
<icon density="xhdpi" src="resources/android/icon/drawable-xhdpi-icon.png" />
<icon density="xxhdpi" src="resources/android/icon/drawable-xxhdpi-icon.png" />
<icon density="xxxhdpi" src="resources/android/icon/drawable-xxxhdpi-icon.png" />
<splash density="land-ldpi" src="resources/android/splash/drawable-land-ldpi-screen.png" />
<splash density="land-mdpi" src="resources/android/splash/drawable-land-mdpi-screen.png" />
<splash density="land-hdpi" src="resources/android/splash/drawable-land-hdpi-screen.png" />
<splash density="land-xhdpi" src="resources/android/splash/drawable-land-xhdpi-screen.png" />
<splash density="land-xxhdpi" src="resources/android/splash/drawable-land-xxhdpi-screen.png" />
<splash density="land-xxxhdpi" src="resources/android/splash/drawable-land-xxxhdpi-screen.png" />
<splash density="port-ldpi" src="resources/android/splash/drawable-port-ldpi-screen.png" />
<splash density="port-mdpi" src="resources/android/splash/drawable-port-mdpi-screen.png" />
<splash density="port-hdpi" src="resources/android/splash/drawable-port-hdpi-screen.png" />
<splash density="port-xhdpi" src="resources/android/splash/drawable-port-xhdpi-screen.png" />
<splash density="port-xxhdpi" src="resources/android/splash/drawable-port-xxhdpi-screen.png" />
<splash density="port-xxxhdpi" src="resources/android/splash/drawable-port-xxxhdpi-screen.png" />
</platform>
<platform name="ios">
<allow-intent href="itms:*" />
<allow-intent href="itms-apps:*" />
<icon height="57" src="resources/ios/icon/icon.png" width="57" />
<icon height="114" src="resources/ios/icon/icon@2x.png" width="114" />
<icon height="40" src="resources/ios/icon/icon-40.png" width="40" />
<icon height="80" src="resources/ios/icon/icon-40@2x.png" width="80" />
<icon height="120" src="resources/ios/icon/icon-40@3x.png" width="120" />
<icon height="50" src="resources/ios/icon/icon-50.png" width="50" />
<icon height="100" src="resources/ios/icon/icon-50@2x.png" width="100" />
<icon height="60" src="resources/ios/icon/icon-60.png" width="60" />
<icon height="120" src="resources/ios/icon/icon-60@2x.png" width="120" />
<icon height="180" src="resources/ios/icon/icon-60@3x.png" width="180" />
<icon height="72" src="resources/ios/icon/icon-72.png" width="72" />
<icon height="144" src="resources/ios/icon/icon-72@2x.png" width="144" />
<icon height="76" src="resources/ios/icon/icon-76.png" width="76" />
<icon height="152" src="resources/ios/icon/icon-76@2x.png" width="152" />
<icon height="167" src="resources/ios/icon/icon-83.5@2x.png" width="167" />
<icon height="29" src="resources/ios/icon/icon-small.png" width="29" />
<icon height="58" src="resources/ios/icon/icon-small@2x.png" width="58" />
<icon height="87" src="resources/ios/icon/icon-small@3x.png" width="87" />
<icon height="1024" src="resources/ios/icon/icon-1024.png" width="1024" />
<splash height="1136" src="resources/ios/splash/Default-568h@2x~iphone.png" width="640" />
<splash height="1334" src="resources/ios/splash/Default-667h.png" width="750" />
<splash height="2208" src="resources/ios/splash/Default-736h.png" width="1242" />
<splash height="1242" src="resources/ios/splash/Default-Landscape-736h.png" width="2208" />
<splash height="1536" src="resources/ios/splash/Default-Landscape@2x~ipad.png" width="2048" />
<splash height="2048" src="resources/ios/splash/Default-Landscape@~ipadpro.png" width="2732" />
<splash height="768" src="resources/ios/splash/Default-Landscape~ipad.png" width="1024" />
<splash height="2048" src="resources/ios/splash/Default-Portrait@2x~ipad.png" width="1536" />
<splash height="2732" src="resources/ios/splash/Default-Portrait@~ipadpro.png" width="2048" />
<splash height="1024" src="resources/ios/splash/Default-Portrait~ipad.png" width="768" />
<splash height="960" src="resources/ios/splash/Default@2x~iphone.png" width="640" />
<splash height="480" src="resources/ios/splash/Default~iphone.png" width="320" />
<splash height="2732" src="resources/ios/splash/Default@2x~universal~anyany.png" width="2732" />
</platform>
<feature name="SplashScreen">
<param name="android-package" value="org.apache.cordova.splashscreen.SplashScreen" />
</feature>
<preference name="webviewbounce" value="false" />
<preference name="UIWebViewBounce" value="false" />
<preference name="DisallowOverscroll" value="true" />
<preference name="android-minSdkVersion" value="19" />
<preference name="BackupWebStorage" value="none" />
<preference name="ShowSplashScreenSpinner" value="false" />
<preference name="FadeSplashScreenDuration" value="1000" />
<preference name="loadUrlTimeoutValue" value="700000" />
<preference name="ShowSplashScreen" value="true" />
<preference name="SplashScreen" value="screen" />
<preference name="SplashScreenDelay" value="3000" />
<preference name="AutoHideSplashScreen" value="false" />
<preference name="SplashShowOnlyFirstTime" value="true" />
<plugin name="cordova-plugin-whitelist" spec="1.3.3" />
<plugin name="cordova-plugin-device" spec="2.0.2" />
<plugin name="cordova-plugin-splashscreen" spec="5.0.2" />
<plugin name="cordova-plugin-ionic-webview" spec="1.1.19" />
<plugin name="cordova-plugin-ionic-keyboard" spec="2.0.5" />
<plugin name="cordova-plugin-network-information" spec="^2.0.1" />
<plugin name="cordova-clipboard" spec="^1.2.1" />
<plugin name="cordova-plugin-firebase" spec="^1.0.5" />
<plugin name="cordova-plugin-telerik-imagepicker" spec="^2.2.2">
<variable name="PHOTO_LIBRARY_USAGE_DESCRIPTION" value="Product images" />
</plugin>
<engine name="android" spec="^7.1.1" />
</widget>
答案 0 :(得分：0)
不用担心，今天它通过实现Ionic延迟加载解决了！
我认为离子延迟加载减少了app.module.ts（主模块）的加载，这使得应用在加载时非常轻便。
此链接有助于：https://ionicacademy.com/ionic-3-lazy-loading/
非常感谢。 此问题已解决。