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ios - 开机黑屏几秒

转载 作者:行者123 更新时间:2023-11-29 11:52:48 29 4
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我的一位同事试图在他的机器上构建我的 JavaFXPorts 应用程序。好消息是:在对 build.gradle 文件中的 forceLinkClasses 部分进行了一些小的更新后,它起作用了。但是……

虽然我们可以短暂地看到其中一张白色 Default*.png 图像,但我们会看到大约 5 秒的黑屏。

在控制台上,他可以看到以下输出(以及其他输出):

[WARN] java.lang.Class: Class.forName() failed to load 'ch.cnlab.disentis.resource.strings_en'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>ch.cnlab.disentis.resource.strings_en</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'ch.cnlab.disentis.resource.strings_de_CH'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>ch.cnlab.disentis.resource.strings_de_CH</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'ch.cnlab.disentis.resource.strings_de'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>ch.cnlab.disentis.resource.strings_de</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'ch.cnlab.disentis.resource.strings'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>ch.cnlab.disentis.resource.strings</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.fasterxml.jackson.databind.ext.Java7SupportImpl'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.fasterxml.jackson.databind.ext.Java7SupportImpl</pattern></forceLinkClasses> to your robovm.xml file to link it in.
Nov 4, 2016 11:32:44 AM com.fasterxml.jackson.databind.ext.Java7Support <clinit>
WARNING: Unable to load JDK7 types (annotations, java.nio.file.Path): no Java7 support added
[WARN] java.lang.Class: Class.forName() failed to load 'javax.xml.stream.FactoryFinder$ClassLoaderFinderConcrete'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>javax.xml.stream.FactoryFinder$ClassLoaderFinderConcrete</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'javax.xml.stream.FactoryFinder$ClassLoaderFinderConcrete'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>javax.xml.stream.FactoryFinder$ClassLoaderFinderConcrete</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'javax.xml.stream.FactoryFinder$ClassLoaderFinderConcrete'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>javax.xml.stream.FactoryFinder$ClassLoaderFinderConcrete</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'javax.xml.stream.FactoryFinder$ClassLoaderFinderConcrete'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>javax.xml.stream.FactoryFinder$ClassLoaderFinderConcrete</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.sun.javafx.font.t2k.T2KFactory'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.sun.javafx.font.t2k.T2KFactory</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.sun.javafx.tk.quantum.QuantumMessagesBundle_de_CH'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.sun.javafx.tk.quantum.QuantumMessagesBundle_de_CH</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.sun.javafx.tk.quantum.QuantumMessagesBundle_de'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.sun.javafx.tk.quantum.QuantumMessagesBundle_de</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.sun.javafx.tk.quantum.QuantumMessagesBundle'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.sun.javafx.tk.quantum.QuantumMessagesBundle</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.oracle.jrockit.jfr.FlightRecorder'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.oracle.jrockit.jfr.FlightRecorder</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.sun.javafx.scene.control.skin.resources.controls_de_CH'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.sun.javafx.scene.control.skin.resources.controls_de_CH</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.sun.javafx.scene.control.skin.resources.controls_de'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.sun.javafx.scene.control.skin.resources.controls_de</pattern></forceLinkClasses> to your robovm.xml file to link it in.
[WARN] java.lang.Class: Class.forName() failed to load 'com.sun.javafx.scene.control.skin.resources.controls'. Use the -forcelinkclasses command line option or add <forceLinkClasses><pattern>com.sun.javafx.scene.control.skin.resources.controls</pattern></forceLinkClasses> to your robovm.xml file to link it in.
setSwapInterval(1)
max rectangle texture cell size = 89
wrap rectangle texture = 2 x 2
ES2ResourceFactory: Prism - createStockShader: AlphaTexture_Color.frag
ES2ResourceFactory: Prism - createStockShader: FillRoundRect_Color.frag
ES2ResourceFactory: Prism - createStockShader: DrawRoundRect_Color.frag
ES2ResourceFactory: Prism - createStockShader: Texture_Color.frag
ES2ResourceFactory: Prism - createStockShader: Solid_TextureRGB.frag
Loading Prism common native library ...
succeeded.
setSwapInterval(0)
setSwapInterval(1)
setSwapInterval(0)
setSwapInterval(1)
setSwapInterval(0)
setSwapInterval(1)
setSwapInterval(0)

延迟似乎发生在 RoboVM 警告之后。

有没有人知道这可能是什么原因?

感谢和问候,丹尼尔

PS:我需要问这个,因为他在 StackOverflow 上没有帐户...所以可能会有一些往返时间,如果我需要让他再次测试。

最佳答案

通常几秒钟的黑屏表示启动时负载过重。

在继续之前,确保加载是绝对必要的,并检查在后台任务中执行加载是否可以解决问题。

如果这没有帮助,有几个选项可以避免长时间黑屏:

一,使用 JavaFX 预加载器。创建从 Preloader 扩展的预加载器类,并提供轻量级场景(即图像)。在您的 build.gradle 脚本中添加 preloaderClassName = 'full.preloader.class.name'

当重载结束时(这应该在 init 方法中完成),应用程序将被加载,您可以隐藏预加载器阶段。

您可以阅读有关预加载器的信息 herehere .

使用 Gluon Mobile (Charm 4.0.1),使用加载速度足够快的轻量级 Home View,并开始在后台加载那些繁重的任务。用户将不得不使用一些导航按钮或抽屉导航来切换到辅助 View ,但黑屏(如果有的话)会更短。

最后使用 Splash View(已包含在 Charm 4+ 中),它将允许在短时间内显示图像或一些标签,同时可以执行任务以加载那些繁重的组件.之后,飞溅可以关闭,然后加载主页 View 。

尝试任何这些解决方案并检查问题是否消失。

关于ios - 开机黑屏几秒,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40421074/

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