Question

我的Jython GUI出现问题。我需要显示文本字段。我相信我遇到了布局的问题，但我不确定如何在Jython中创建一个新的FlowLayout。

#!/usr/bin/env jython

# Created by Joe Castleberry
# 2013 

# Imports
from javax.swing import * 
from java.awt import *

class Window: 
    def __init__(self): 
        # Global variables
        global frame
        global label
        global container
        global text

        # Definition of global variables
        frame = JFrame("Joe's first Java program")
        label = JLabel("Hello World!", JLabel.CENTER)
        container = JPanel()
        text = JTextField(10)

    def builder(self):  
        # Building container
        container.setLayout(None)
        container.setBackground(Color.BLACK)

        # Building frame
        frame.getContentPane().add(container)       # Adding Container to JFrame
        frame.setSize(300,300)
        frame.setVisible(True)
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)

        # Adding components to container
         container.add(text)



a = Window()
a.builder()

Answer 1

我在上面用 CHANGED 开头添加了评论。您的代码只需稍加修改即可使用。

1）使用布局，不要将布局设置为无，没有绝对布局管理器等。

2）在打包框架之前，将组件添加到主内容窗格容器中。如果没有，你需要重新验证容器等（在框架可见后可能有重绘）。

#!/usr/bin/env jython

# Created by Joe Castleberry
# 2013 

# Imports
from javax.swing import * 
from java.awt import *

class Window: 
    def __init__(self): 
        # Global variables
        global frame
        global label
        global container
        global text

        # Definition of global variables
        frame = JFrame("Joe's first Java program")
        label = JLabel("Hello World!", JLabel.CENTER)
        container = JPanel()
        text = JTextField(10)

    def builder(self):  
        # Building container
        # CHANGED Removed container.setLayout(None)
        container.setBackground(Color.BLACK)
        # CHANGED Move the add text call here
        container.add(text)

        # Building frame
        frame.getContentPane().add(container)
        frame.setSize(300,300)
        frame.setVisible(True)
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)



a = Window()
a.builder()

Jython GUI出现问题

1 个答案: