【移动应用开发技术】怎么用Python PyQt5模块实现一个浏览器

【移动应用开发技术】怎么用PythonPyQt5模块实现一个浏览器

这篇“怎么用PythonPyQt5模块实现一个浏览器”文章的知识点大部分人都不太理解，所以在下给大家总结了以下内容，内容详细，步骤清晰，具有一定的借鉴价值，希望大家阅读完这篇文章能有所收获，下面我们一起来看看这篇“怎么用PythonPyQt5模块实现一个浏览器”文章吧。pip3installPyQt5

(没有指定版本的话，默认会安装最新的）pip3installsippip3installPyQtWebEngine(PyQtWebEngine是QtWebEngine的一组框架，该框架提供了在应用程序中嵌入Web内容的能力，并且基于Chrome浏览器。）from

PyQt5.QtCore

import

*

from

PyQt5.QtWidgets

import

*

from

PyQt5.QtGui

import

*

from

PyQt5.QtWebEngineWidgets

import

*

import

os

import

sys

class

MainWindow(QMainWindow):

def

__init__(self,

*args,

**kwargs):

super().__init__(*args,

**kwargs)

self.resize(2000,

1314)

self.show()

self.tabWidget

=

QTabWidget()

self.tabWidget.setTabShape(QTabWidget.Triangular)

self.tabWidget.setDocumentMode(True)

self.tabWidget.setMovable(True)

self.tabWidget.setTabsClosable(True)

self.tabWidget.tabCloseRequested.connect(self.close_Tab)

self.setCentralWidget(self.tabWidget)

self.webview

=

WebEngineView(self)

self.webview.load(QUrl(""))

self.create_tab(self.webview)

navtb

=

QToolBar("Navigation")

navtb.setIconSize(QSize(16,

16))

self.addToolBar(navtb)

back_btn

=

QAction(QIcon(os.path.join("images",

"houtui.png")),

"后退",

self)

back_btn.triggered.connect(self.webview.back)

navtb.addAction(back_btn)

next_btn

=

QAction(QIcon(os.path.join("images",

"qianjin.png")),

"前进",

self)

next_btn.triggered.connect(self.webview.forward)

navtb.addAction(next_btn)

reload_btn

=

QAction(QIcon(os.path.join("images",

"refresh_icon.png")),

"刷新",

self)

reload_btn.triggered.connect(self.webview.reload)

navtb.addAction(reload_btn)

home_btn

=

QAction(QIcon(os.path.join("images",

"geren1.png")),

"主页",

self)

navtb.addAction(home_btn)

self.urlbar

=

QLineEdit()

stop_btn

=

QAction(QIcon(os.path.join("images",

"cross-circle.png")),

"Stop",

self)

stop_btn.triggered.connect(lambda:

self.tabs.currentWidget().stop())

navtb.addAction(stop_btn)

self.urlbar.returnPressed.connect(self.navigate_to_url)

navtb.addSeparator()

navtb.addWidget(self.urlbar)

self.webview.urlChanged.connect(self.renew_urlbar)

def

navigate_to_url(self):

q

=

QUrl(self.urlbar.text())

if

q.scheme()

==

"":

q.setScheme("http")

self.webview.setUrl(q)

def

renew_urlbar(self,

q):

self.urlbar.setText(q.toString())

self.urlbar.setCursorPosition(0)

def

create_tab(self,

webview):

self.tab

=

QWidget()

self.tabWidget.addTab(self.tab,

"新建标签页")

self.tabWidget.setCurrentWidget(self.tab)

self.Layout

=

QHBoxLayout(self.tab)

self.Layout.setContentsMargins(0,

0,

0,

0)

self.Layout.addWidget(webview)

def

close_Tab(self,

index):

if

self.tabWidget.count()

>

1:

self.tabWidget.removeTab(index)

else:

self.close()

class

WebEngineView(QWebEngineView):

def

__init__(self,

mainwindow,

parent=None):

super(WebEngineView,

self).__init__(parent)

self.mainwindow

=

mainwindow

def

createWindow(self,

QWebEnginePage_WebWindowType):

new_webview

=

WebEngineView(self.mainwindow)

self.mainwindow.create_tab(new_webv