Java JFrame 更换屏幕
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JFrame changing screens
提问by Arc
I'm wondering how to change screens in a JFrame. For example, changing from the starting screen to a different screen. So you have an assortment of buttons, labels, trees, etc on one screen, as the user clicks a button a different layout appears.
我想知道如何在 JFrame 中更改屏幕。例如，从起始屏幕更改为不同的屏幕。所以你在一个屏幕上有各种各样的按钮、标签、树等，当用户点击一个按钮时，会出现不同的布局。
Would the 'setVisible(false) and setVisible(true)' do the trick?
'setVisible(false) 和 setVisible(true)' 会起作用吗？
采纳答案by kwikness
You've got it! Create separate JFrame instances for each of your frames:
你明白了！为每个框架创建单独的 JFrame 实例：
JFrame frame1 = new JFrame();
JFrame frame2 = new JFrame();
//populate your frames with stuff
frame1.setVisible(false);
frame2.setVisible(true);
On a side note, you'll want to make sure to use setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE)on any secondary frames to prevent your application from terminating if a user closes a secondary frame.
附带说明一下，您需要确保在任何辅助框架上使用setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE)以防止您的应用程序在用户关闭辅助框架时终止。
All that being said, you can also use multiple JPanel instances inside of the same JFrame instead of creating multiple JFrame instances. This way, all the action of your application will take place in one window.
尽管如此，您还可以在同一个 JFrame 内使用多个 JPanel 实例，而不是创建多个 JFrame 实例。这样，您的应用程序的所有操作都将在一个窗口中进行。
I would strongly recommend giving this a read through: http://docs.oracle.com/javase/tutorial/uiswing/
我强烈建议通读一遍：http: //docs.oracle.com/javase/tutorial/uiswing/
