Java 使用 4 个选项制作 JOptionPane
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Making a JOptionPane with 4 options
提问by Mike2012
I need to make a custom dialog with 4 options but as far as I can tell you can only have one with three options. Here is how I would make an option pane with 3 options:
我需要制作一个带有 4 个选项的自定义对话框，但据我所知，您只能有一个带有三个选项的对话框。这是我如何制作一个包含 3 个选项的选项窗格：
Frame refFrame = DialogUtils.getReferenceFrame();
///TODO:
/// - Use DialogUtils
int option = JOptionPane.showOptionDialog(refFrame,
msg,
rsc.str("918"),
JOptionPane.YES_NO_CANCEL_OPTION,
JOptionPane.INFORMATION_MESSAGE,
DialogUtils.INFO_ICON,
options,
options[0]);
But I could not find some sort of open ended substitution for YES_NO_CANCEL_OPTION. Is there a way to make the JOptionPane allow four choices?
但是我找不到 YES_NO_CANCEL_OPTION 的某种开放式替代。有没有办法让 JOptionPane 允许四个选择？
采纳答案by Peter
You can use any of the JOptionPane's option constants, you just need to supply a options array of size 4:
你可以使用任何 JOptionPane 的选项常量，你只需要提供一个大小为 4 的选项数组：
public static void main(String[] args) {
String[] options = new String[] {"Yes", "No", "Maybe", "Cancel"};
int response = JOptionPane.showOptionDialog(null, "Message", "Title",
JOptionPane.DEFAULT_OPTION, JOptionPane.PLAIN_MESSAGE,
null, options, options[0]);
// Where response == 0 for Yes, 1 for No, 2 for Maybe and -1 or 3 for Escape/Cancel.
}
回答by Michael Borgwardt
Simply use an optionsarray of size 4 instead of 3...
只需使用options大小为 4 而不是 3的数组...
