BufferStrategy中非法状态异常 [英] BufferStrategy Illegal State Exception

问题描述

的努力工作，这一点我难倒了几个小时后。我有点新的Java和可以使用一些帮助。

After a few hours of trying to work this out I am stumped. I am somewhat new to Java and could use some help.

堆栈跟踪：

java.lang.IllegalStateException: Component must have a valid peer
at java.awt.Component$FlipBufferStrategy.createBuffers(Unknown Source)
at java.awt.Component$FlipBufferStrategy.<init>(Unknown Source)
at java.awt.Component$FlipSubRegionBufferStrategy.<init>(Unknown Source)
at java.awt.Component.createBufferStrategy(Unknown Source)
at java.awt.Canvas.createBufferStrategy(Unknown Source)
at java.awt.Component.createBufferStrategy(Unknown Source)
at java.awt.Canvas.createBufferStrategy(Unknown Source)
at com.mime.crystalnova.Display.render(Display.java:148)
at com.mime.crystalnova.Display.run(Display.java:112)
at java.lang.Thread.run(Unknown Source)

该错误似乎与这条线code的位置：

The error appears to be with this line of code here:

BufferStrategy bs = getBufferStrategy();
if (bs == null) {
    createBufferStrategy(3);
    return;
}

奇怪的是，它给我这个错误，而调试，然后继续运行完美。当通过可运行jar文件推出，以及它工作正常。

The odd thing is that it gives me this error while debugging and then continues to run flawlessly. It works fine when launched via runnable jar file as well.

推荐答案

这也可能是得到了与调用时间的成分不被看见没有这样做 createBufferStrategy（） （有一阵子了）。尝试在以后调用它。

It's probably got to do with the component not being visible yet at the time you call createBufferStrategy() (it's been a while). Try calling it at a later time.

这应用程式继续可能运行的事实意味着该组件默认为一个非缓冲策略

The fact that your app continues to run probably means the component defaulted to a non-buffered strategy.

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