android - 未显示 ionic 应用启动画面

Question

我一直在反复尝试为我的 Ionic 应用程序添加启动画面使用此配置，图标可以正常工作，但 splashscreen 不工作。它显示一个空白屏幕，甚至没有 cordova 默认 splashscreen。

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<widget id="com.ionicframework.toggle423609" version="0.0.1" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
  <name>Toggle</name>
  <description>
        An Ionic Framework and Cordova project.
    </description>
  <author email="you@example.com" href="http://example.com.com/">
      Your Name Here
    </author>
  <content src="index.html"/>
  <access origin="*"/>
  <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="SplashScreen" value="screen"/>
  <preference name="SplashScreenDelay" value="3000"/>
  <preference name="AutoHideSplashScreen" value="false" />

  <feature name="StatusBar">
    <param name="ios-package" value="CDVStatusBar" onload="true"/>
  </feature>
  <platform name="android">
    <icon src="resources/android/icon/drawable-ldpi-icon.png" density="ldpi"/>
    <icon src="resources/android/icon/drawable-mdpi-icon.png" density="mdpi"/>
    <icon src="resources/android/icon/drawable-hdpi-icon.png" density="hdpi"/>
    <icon src="resources/android/icon/drawable-xhdpi-icon.png" density="xhdpi"/>
    <icon src="resources/android/icon/drawable-xxhdpi-icon.png" density="xxhdpi"/>
    <icon src="resources/android/icon/drawable-xxxhdpi-icon.png" density="xxxhdpi"/>
    <splash src="resources/android/splash/drawable-land-ldpi-screen.png" density="land-ldpi"/>
    <splash src="resources/android/splash/drawable-land-mdpi-screen.png" density="land-mdpi"/>
    <splash src="resources/android/splash/drawable-land-hdpi-screen.png" density="land-hdpi"/>
    <splash src="resources/android/splash/drawable-land-xhdpi-screen.png" density="land-xhdpi"/>
    <splash src="resources/android/splash/drawable-land-xxhdpi-screen.png" density="land-xxhdpi"/>
    <splash src="resources/android/splash/drawable-land-xxxhdpi-screen.png" density="land-xxxhdpi"/>
    <splash src="resources/android/splash/drawable-port-ldpi-screen.png" density="port-ldpi"/>
    <splash src="resources/android/splash/drawable-port-mdpi-screen.png" density="port-mdpi"/>
    <splash src="resources/android/splash/drawable-port-hdpi-screen.png" density="port-hdpi"/>
    <splash src="resources/android/splash/drawable-port-xhdpi-screen.png" density="port-xhdpi"/>
    <splash src="resources/android/splash/drawable-port-xxhdpi-screen.png" density="port-xxhdpi"/>
    <splash src="resources/android/splash/drawable-port-xxxhdpi-screen.png" density="port-xxxhdpi"/>
  </platform>
  <platform name="ios">
    <icon src="resources/ios/icon/icon.png" width="57" height="57"/>
    <icon src="resources/ios/icon/icon@2x.png" width="114" height="114"/>
    <icon src="resources/ios/icon/icon-40.png" width="40" height="40"/>
    <icon src="resources/ios/icon/icon-40@2x.png" width="80" height="80"/>
    <icon src="resources/ios/icon/icon-50.png" width="50" height="50"/>
    <icon src="resources/ios/icon/icon-50@2x.png" width="100" height="100"/>
    <icon src="resources/ios/icon/icon-60.png" width="60" height="60"/>
    <icon src="resources/ios/icon/icon-60@2x.png" width="120" height="120"/>
    <icon src="resources/ios/icon/icon-60@3x.png" width="180" height="180"/>
    <icon src="resources/ios/icon/icon-72.png" width="72" height="72"/>
    <icon src="resources/ios/icon/icon-72@2x.png" width="144" height="144"/>
    <icon src="resources/ios/icon/icon-76.png" width="76" height="76"/>
    <icon src="resources/ios/icon/icon-76@2x.png" width="152" height="152"/>
    <icon src="resources/ios/icon/icon-small.png" width="29" height="29"/>
    <icon src="resources/ios/icon/icon-small@2x.png" width="58" height="58"/>
    <icon src="resources/ios/icon/icon-small@3x.png" width="87" height="87"/>
    <splash src="resources/ios/splash/Default-568h@2x~iphone.png" height="1136" width="640"/>
    <splash src="resources/ios/splash/Default-667h.png" height="1334" width="750"/>
    <splash src="resources/ios/splash/Default-736h.png" height="2208" width="1242"/>
    <splash src="resources/ios/splash/Default-Landscape-736h.png" height="1242" width="2208"/>
    <splash src="resources/ios/splash/Default-Landscape@2x~ipad.png" height="1536" width="2048"/>
    <splash src="resources/ios/splash/Default-Landscape~ipad.png" height="768" width="1024"/>
    <splash src="resources/ios/splash/Default-Portrait@2x~ipad.png" height="2048" width="1536"/>
    <splash src="resources/ios/splash/Default-Portrait~ipad.png" height="1024" width="768"/>
    <splash src="resources/ios/splash/Default@2x~iphone.png" height="960" width="640"/>
    <splash src="resources/ios/splash/Default~iphone.png" height="480" width="320"/>
  </platform>
</widget>

Answer 1

1. 首先尝试读取您的插件:

   $ ionic plugin remove cordova-plugin-splashscreen
   $ ionic plugin add cordova-plugin-splashscreen
   

2. 然后在您的 resources 文件夹中编辑 splash 图像。
3. 在 CLI 中运行 $ ionic resources --splash
4. 重新构建 $ ionic build android 并运行您的应用

检查 Ionic documentation - Icon and Splash Screen Image Generation

如果这不起作用，您应该删除并重新添加遇到问题的平台。

$ cordova platform remove android (or ios)
$ cordova platform add android (or ios)