相关疑难解决方法(0)

我正在使用Java Swing开发一个桌面应用程序供我个人使用.我的应用程序需要一些漂亮的外观和感觉.如何使用Java或第三方API来完成？

这是一个例子.

如果你构建并运行TranslucentWindow支持jdk7的NetBeans IDE 7.0,你将得到以下异常:

Exception in thread "AWT-EventQueue-0" java.awt.IllegalComponentStateException: The frame is decorated
    at java.awt.Frame.setOpacity(Frame.java:960)
    at main.TranslucentWindow.<init>(TranslucentWindow.java:23)
    at main.TranslucentWindow$1.run(TranslucentWindow.java:47)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:705)
    at java.awt.EventQueue.access$000(EventQueue.java:101)
    at java.awt.EventQueue$3.run(EventQueue.java:666)
    at java.awt.EventQueue$3.run(EventQueue.java:664)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:675)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
BUILD SUCCESSFUL (total time: 1 second)

根据这个堆栈跟踪,违规行是tw.setOpacity(0.55f).但是,正如错误所示,如果你setUndecorated(true)在框架上调用,那么它不会抛出异常并创建一个半透明的窗口,虽然没有任何装饰(这很痛苦).这是正常的吗？这段代码不应该"开箱即用"吗？我忽略了什么吗？

编辑

为什么他们的半透明窗口看起来是装饰的,还是这个自定义渲染？

这是什么...

应该是什么......