Qt Designer 修改窗体大小改变控件位置

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一.新建一个窗体

用qt designer 新建一个QWidget窗体，在窗体中右键

选择布局，发现布局是选择不了的，这个是因为窗体里面没有添加控件，任意添加空间后便可选择 右键-- 布局-- 水平布局/垂直布局 等

二. 添加控件

我们添加一个group box 控件，然后右键选择布局 -- 垂直布局

在添加一个horizontalLayout，再给horizontalLayout里面添加两个button按钮

向group box 里面添加一个label 和 botton

然后在group box 的里面选择右键 -- 布局 -- 水平布局

三. 添加spacers效果

我们给group box 里面的两个控件直接添加一个horizontalSpacer

给group box 和horizontalLayout 直接添加一个verticalSpacer

在这里说明下spacers 缩放类型 sizeType

Expanding ：可自行增大和收缩

Fixed：不能放大或缩小

Minimum：不能小于sizeHint尺寸，可放大（若设置了最大尺寸）

Maximum：不能放大，可缩小到允许的最小尺寸（若setMinimumSize(10,10)只能缩小到（10，10））

Preferred：控件的sizeHint是他的Hint,可以放大或缩小

四. 生成ui与py

spacersLayouts.ui文件：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Form</class>
<widget class="QWidget" name="Form">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>518</width>
<height>429</height>
</rect>
</property>
<property name="windowTitle">
<string>Form</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QGroupBox" name="groupBox">
<property name="minimumSize">
<size>
<width>0</width>
<height>100</height>
</size>
</property>
<property name="maximumSize">
<size>
<width>16777215</width>
<height>200</height>
</size>
</property>
<property name="title">
<string>分组</string>
</property>
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<widget class="QLabel" name="label">
<property name="text">
<string>左侧</string>
</property>
</widget>
</item>
<item>
<spacer name="horizontalSpacer_2">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QPushButton" name="pushButton_2">
<property name="text">
<string>右侧</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeType">
<enum>QSizePolicy::Expanding</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>100</height>
</size>
</property>
</spacer>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout_2">
<property name="spacing">
<number>6</number>
</property>
<item>
<spacer name="horizontalSpacer">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QPushButton" name="pushButton_3">
<property name="text">
<string>确定</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton_4">
<property name="text">
<string>取消</string>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</widget>
<resources/>
<connections/>
</ui>

生成的spacersLayouts.py 文件

# -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'spacersLayouts.ui'
#
# Created: Tue Mar 03 15:44:16 2015
# by: PyQt4 UI code generator 4.10.3
#
# WARNING! All changes made in this file will be lost! from PyQt4 import QtCore, QtGui try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig) class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName(_fromUtf8("Form"))
Form.resize(518, 429)
self.verticalLayout = QtGui.QVBoxLayout(Form)
self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
self.groupBox = QtGui.QGroupBox(Form)
self.groupBox.setMinimumSize(QtCore.QSize(0, 100))
self.groupBox.setMaximumSize(QtCore.QSize(16777215, 200))
self.groupBox.setObjectName(_fromUtf8("groupBox"))
self.horizontalLayout = QtGui.QHBoxLayout(self.groupBox)
self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))
self.label = QtGui.QLabel(self.groupBox)
self.label.setObjectName(_fromUtf8("label"))
self.horizontalLayout.addWidget(self.label)
spacerItem = QtGui.QSpacerItem(40, 20, QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Minimum)
self.horizontalLayout.addItem(spacerItem)
self.pushButton_2 = QtGui.QPushButton(self.groupBox)
self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))
self.horizontalLayout.addWidget(self.pushButton_2)
self.verticalLayout.addWidget(self.groupBox)
spacerItem1 = QtGui.QSpacerItem(20, 100, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Expanding)
self.verticalLayout.addItem(spacerItem1)
self.horizontalLayout_2 = QtGui.QHBoxLayout()
self.horizontalLayout_2.setSpacing(6)
self.horizontalLayout_2.setObjectName(_fromUtf8("horizontalLayout_2"))
spacerItem2 = QtGui.QSpacerItem(40, 20, QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Minimum)
self.horizontalLayout_2.addItem(spacerItem2)
self.pushButton_3 = QtGui.QPushButton(Form)
self.pushButton_3.setObjectName(_fromUtf8("pushButton_3"))
self.horizontalLayout_2.addWidget(self.pushButton_3)
self.pushButton_4 = QtGui.QPushButton(Form)
self.pushButton_4.setObjectName(_fromUtf8("pushButton_4"))
self.horizontalLayout_2.addWidget(self.pushButton_4)
self.verticalLayout.addLayout(self.horizontalLayout_2) self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form) def retranslateUi(self, Form):
Form.setWindowTitle(_translate("Form", "Form", None))
self.groupBox.setTitle(_translate("Form", "分组", None))
self.label.setText(_translate("Form", "左侧", None))
self.pushButton_2.setText(_translate("Form", "右侧", None))
self.pushButton_3.setText(_translate("Form", "确定", None))
self.pushButton_4.setText(_translate("Form", "取消", None)) if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
Form = QtGui.QWidget()
ui = Ui_Form()
ui.setupUi(Form)
Form.show()
sys.exit(app.exec_())