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    <blockquote> <p>I wonder, is there something I can do to my Swing applications behave the same in every computer?</p> </blockquote> <p>I'm working on a complex Java Swing app that is shipped on OS X / Windows / Linux so just like Bozhidar answered, the issues are all far too real.</p> <p>For some components, if you happen to have some UI design/programming skills, you can simply <em>write your own component</em>: I realize it's probably not a helpful answer, but it works.</p> <p>For example, we wanted a drop-down "find-as-you-type" popup list (like the one that appears when you start a search on Google's main search page) that would look and work the same on Linux/Windows/OS X. After trying countless of "solutions" full of Swing idiosynchrasies that would not work everywhere (like, guess what, focus issues ; ) we decided to simply write our own component "from scractch".</p> <p>We can intercept mouse and keyboard events on both OS X / Windows / Linux: we can write a component that not only <em>looks</em> but also <em>behaves</em> identically on all three platforms.</p> <p>In addition to the "find-as-you-type", we also wrote our own tooltip-popup component, a dual progress bar (to progress bar in one to show producer/consumer style progress in a single bar) and a complex component involving several "text fields" which was absurdly complex and broken when we tried to do it using Swing (and broken in different ways on different platforms, like weird focus issues or caret not showing, etc.). So we "went dirty" and rewrote the entire component ourselves.</p> <p>Result? Working identically on all platforms where Java can give you notifications about mouse and keyboard events...</p> <p>I realize this may not be what you want to hear: I happen to have worked on both games UI and mobile apps UI back in the days and I have some graphic skills so it's not "hard" for me to write good looking UI components.</p> <p>Sadly if you want some Java UI component to look and behave identically on all platforms, it's sometimes your only alternative...</p>
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    1. POWhy Java Swing behaves different on different systems?
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    1. CO+1 from me as well. I feel your pain - I've written a lot of custom components myself. And the focus traversal policy of Swing can only be described as "black magic"... My other "favourite" multiplatform issues are clipboard integration and sys tray integration...
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      1. USBozhidar Batsov
    2. COthe worst is that the example I've posted show that even in 2 Windows systems the swing app can behave different.
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      1. USTom Brito
 

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