鼠标右键事件 [英] Right click mouse event

问题描述

我通过这个论坛进行搜索，但是找不到关于该主题的很好的解释.与以下陈述有何不同?触发该事件的更好方法是哪种方法?

I search through this forum but I can't find a good explanation on this topic. Is there any different from the below statements? Which way is the better way to trigger this event?

if (evt.getButton() == 3) 

VS.

if (SwingUtilities.isRightMouseButton(evt))

推荐答案

SwingUtilities.isRightMouseButton(evt)

这使用位操作数进行比较:

this uses a bit operand to compare:

(evt.getModifiers() & InputEvent.BUTTON3_MASK) == InputEvent.BUTTON3_MASK)

而其他人，只需将其与可以更改的幻数进行比较，我宁愿将第一个比较更改为:

while other, just compare with a magic number that can change, I would rather change first comparison to:

if(evt.getButton() == java.awt.event.MouseEvent.BUTTON3)

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SwingUtilities 是jdk附带的javax的一部分，因此我更愿意将这种责任委派给该实用程序(帮助程序)类，因此在这种情况下， SwingUtilities 胜了.

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SwingUtilities is part of the javax which comes with jdk, so I would prefer to delegate that responsabillity to this utility (helper) class, so in that case, SwingUtilities wins.

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