QtGui.QInputDialog

The QtGui.QInputDialog provides a simple convenience dialog to get a single value from the user. The input value can be a string, a number or an item from a list.

#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
ZetCode PyQt4 tutorial 

In this example, we receive data from
a QtGui.QInputDialog dialog. 

author: Jan Bodnar
website: zetcode.com 
last edited: October 2011
"""

import sys
from PyQt4 import QtGui


class Example(QtGui.QWidget):
    
    def __init__(self):
        super(Example, self).__init__()
        
        self.initUI()
        
    def initUI(self):      

        self.btn = QtGui.QPushButton(‘Dialog‘, self)
        self.btn.move(20, 20)
        self.btn.clicked.connect(self.showDialog)
        
        self.le = QtGui.QLineEdit(self)
        self.le.move(130, 22)
        
        self.setGeometry(300, 300, 290, 150)
        self.setWindowTitle(‘Input dialog‘)
        self.show()
        
    def showDialog(self):
        
        text, ok = QtGui.QInputDialog.getText(self, ‘Input Dialog‘, 
            ‘Enter your name:‘)
        
        if ok:
            self.le.setText(str(text))
        
def main():
    
    app = QtGui.QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())


if __name__ == ‘__main__‘:
    main()

The example has a button and a line edit widget. The button shows the input dialog for getting text values. The entered text will be displayed in the line edit widget.

text, ok = QtGui.QInputDialog.getText(self, ‘Input Dialog‘, 
    ‘Enter your name:‘)

This line displays the input dialog. The first string is a dialog title, the second one is a message within the dialog. The dialog returns the entered text and a boolean value. If we click the Ok button, the boolean value is true.

if ok:
    self.le.setText(str(text))

The text that we have received from the dialog is set to the line edit widget.

Figure: Input Dialog

QtGui.QInputDialog

原文：http://www.cnblogs.com/hushaojun/p/4435703.html