PyQt - QInputDialog部件

这是一个预配置的对话框，带有一个文本字段和两个按钮，“确定”和“取消”。当用户点击“确定”按钮或按下 Enter 键后，父窗口会收集文本框中的输入。

用户输入可以是数字、字符串或列表中的项目。还会显示一个提示用户应该做什么的标签。

QInputDialog 类具有以下静态方法来接受用户的输入：

示例

以下示例实现了输入对话框功能。顶级窗口有三个按钮。它们的 clicked() 信号通过连接的槽弹出 InputDialog。

items = ("C", "C++", "Java", "Python")

item, ok = QInputDialog.getItem(self, "select input dialog", 
   "list of languages", items, 0, False)
	
   if ok and item:
      self.le.setText(item)
		
   def gettext(self):
      text, ok = QInputDialog.getText(self, 'Text Input Dialog', 'Enter your name:')
      if ok:
         self.le1.setText(str(text))
			
   def getint(self):
      num,ok = QInputDialog.getInt(self,"integer input dualog","enter a number")
		
      if ok:
         self.le2.setText(str(num))

完整的代码如下：

import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *

class inputdialogdemo(QWidget):
   def __init__(self, parent = None):
      super(inputdialogdemo, self).__init__(parent)
		
      layout = QFormLayout()
      self.btn = QPushButton("Choose from list")
      self.btn.clicked.connect(self.getItem)
		
      self.le = QLineEdit()
      layout.addRow(self.btn,self.le)
      self.btn1 = QPushButton("get name")
      self.btn1.clicked.connect(self.gettext)
		
      self.le1 = QLineEdit()
      layout.addRow(self.btn1,self.le1)
      self.btn2 = QPushButton("Enter an integer")
      self.btn2.clicked.connect(self.getint)
		
      self.le2 = QLineEdit()
      layout.addRow(self.btn2,self.le2)
      self.setLayout(layout)
      self.setWindowTitle("Input Dialog demo")
		
   def getItem(self):
      items = ("C", "C++", "Java", "Python")
		
      item, ok = QInputDialog.getItem(self, "select input dialog", 
         "list of languages", items, 0, False)
			
      if ok and item:
         self.le.setText(item)
			
   def gettext(self):
      text, ok = QInputDialog.getText(self, 'Text Input Dialog', 'Enter your name:')
		
      if ok:
         self.le1.setText(str(text))
			
   def getint(self):
      num,ok = QInputDialog.getInt(self,"integer input dualog","enter a number")
		
      if ok:
         self.le2.setText(str(num))
			
def main(): 
   app = QApplication(sys.argv)
   ex = inputdialogdemo()
   ex.show()
   sys.exit(app.exec_())
	
if __name__ == '__main__':
   main()

以上代码产生以下输出：