2017-07-06 19 views
3

我目前正在做一個離子2 angular2和Typescript的應用程序。當涉及到啓動我的應用程序的速度,我有一個大問題。當我爲dev或prod環境構建應用程序並將其安裝在任何設備上時,加載需要很長時間。如何加快Ionic 2應用程序在設備上運行時的啓動時間

當我啓動應用程序時,它會顯示一個白色屏幕,保持這麼長時間,這真的很煩人,因爲用戶不會等那麼久。

我確實刪除了splashscreen cordova插件,並且我在config.xml中將splashscreen延遲更改爲0,但它仍需要很長時間才能加載。

當啓動我的應用程序只有幾個Get請求是全部。 這是我當前的Config.xml

<widget id="com.ionicframework.comvltapp596066" version="0.0.1" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0"> 
    <name>com.vlt.app</name> 
    <description>An awesome Ionic/Cordova app.</description> 
    <author email="[email protected]" href="http://ionicframework.com/">Ionic Framework Team</author> 
    <content src="index.html" /> 
    <access origin="*" /> 
    <allow-navigation href="http://ionic.local/*" /> 
    <allow-intent href="http://*/*" /> 
    <allow-intent href="https://*/*" /> 
    <allow-intent href="tel:*" /> 
    <allow-intent href="sms:*" /> 
    <allow-intent href="mailto:*" /> 
    <allow-intent href="geo:*" /> 
    <preference name="webviewbounce" value="false" /> 
    <preference name="UIWebViewBounce" value="false" /> 
    <preference name="DisallowOverscroll" value="true" /> 
    <preference name="android-minSdkVersion" value="16" /> 
    <preference name="BackupWebStorage" value="none" /> 
    <preference name="SplashMaintainAspectRatio" value="true" /> 
    <preference name="FadeSplashScreenDuration" value="2" /> 
    <preference name="SplashShowOnlyFirstTime" value="true" /> 
    <preference name="SplashScreen" value="screen" /> 
    <preference name="SplashScreenDelay" value="0" /> 
    <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/[email protected]" width="114" /> 
     <icon height="40" src="resources/ios/icon/icon-40.png" width="40" /> 
     <icon height="80" src="resources/ios/icon/[email protected]" width="80" /> 
     <icon height="120" src="resources/ios/icon/[email protected]" width="120" /> 
     <icon height="50" src="resources/ios/icon/icon-50.png" width="50" /> 
     <icon height="100" src="resources/ios/icon/[email protected]" width="100" /> 
     <icon height="60" src="resources/ios/icon/icon-60.png" width="60" /> 
     <icon height="120" src="resources/ios/icon/[email protected]" width="120" /> 
     <icon height="180" src="resources/ios/icon/[email protected]" width="180" /> 
     <icon height="72" src="resources/ios/icon/icon-72.png" width="72" /> 
     <icon height="144" src="resources/ios/icon/[email protected]" width="144" /> 
     <icon height="76" src="resources/ios/icon/icon-76.png" width="76" /> 
     <icon height="152" src="resources/ios/icon/[email protected]" width="152" /> 
     <icon height="167" src="resources/ios/icon/[email protected]" width="167" /> 
     <icon height="29" src="resources/ios/icon/icon-small.png" width="29" /> 
     <icon height="58" src="resources/ios/icon/[email protected]" width="58" /> 
     <icon height="87" src="resources/ios/icon/[email protected]" width="87" /> 
     <splash height="1136" src="resources/ios/splash/[email protected]~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/[email protected]~ipad.png" width="2048" /> 
     <splash height="2048" src="resources/ios/splash/[email protected]~ipadpro.png" width="2732" /> 
     <splash height="768" src="resources/ios/splash/Default-Landscape~ipad.png" width="1024" /> 
     <splash height="2048" src="resources/ios/splash/[email protected]~ipad.png" width="1536" /> 
     <splash height="2732" src="resources/ios/splash/[email protected]~ipadpro.png" width="2048" /> 
     <splash height="1024" src="resources/ios/splash/Default-Portrait~ipad.png" width="768" /> 
     <splash height="960" src="resources/ios/splash/[email protected]~iphone.png" width="640" /> 
     <splash height="480" src="resources/ios/splash/Default~iphone.png" width="320" /> 
    </platform> 
    <engine name="android" spec="^6.2.3" /> 
    <engine name="browser" spec="^4.1.0" /> 
    <plugin name="cordova-plugin-console" spec="1.0.5" /> 
    <plugin name="cordova-plugin-device" spec="1.1.4" /> 
    <plugin name="cordova-plugin-googlemaps" spec="^1.4.0"> 
     <variable name="API_KEY_FOR_ANDROID" value="AIzaSyALRGE9KkSD9Qpng8XR7vUaVNj1teJGhw4" /> 
    </plugin> 
    <plugin name="cordova-plugin-inappbrowser" spec="^1.7.1" /> 
    <plugin name="cordova-plugin-statusbar" spec="2.2.2" /> 
    <plugin name="cordova-plugin-whitelist" spec="1.3.1" /> 
    <plugin name="cordova-sqlite-storage" spec="^2.0.4" /> 
    <plugin name="ionic-plugin-keyboard" spec="~2.2.1" /> 
</widget> 

請幫忙!

回答

6

從經驗來看,我會說在Ionic應用程序中啓動時間並沒有明顯改善,但是從我收集的在線文章中可以看出,您可以優化您的Ionic應用程序以更快啓動和工作。

  1. 身高Ionicons在必要時圖像
  2. 檢查並確保你的JavaScript文件移動到頁面底部
  3. 不要使用不必要的庫如jQuery。
  4. 使用較少的頁面或以其他方式學習重用頁面。
  5. Ionic 3還引入了延遲加載,以避免在啓動時加載所有組件。

等許多時間花在工作上對這些問題推出與我的團隊之後退房this鏈接多一點細節

+0

謝謝你先生。但我仍然相信除了代碼本身之外,還有其他的東西會導致啓動緩慢,因爲這甚至會發生在模板或空白應用程序中 –

1

我同意@Emeka Obianom。我們還有很長的啓動時間。

這是一個有點的加載屏幕上的index.html

不那麼無聊你會提高一點,如果你壓縮JavaScript。

您可以在android上使用工具https://www.guardsquare.com/en/proguard 。您也可以在網上找到免費的蘋果解決方案。

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