我正在尝试使用 wifi python 模块通过 kivy 接口连接 wifi 网络。Kivy GUI 在成功执行“scheme.activate()”（用于连接到 wifi 网络）后 5 到 10 秒内挂起（冻结）。我也尝试过线程，但它仍然挂起。完整的代码可以在这里找到。
主文件
import commands
import string
import threading
from kivy.app import App
from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.checkbox import CheckBox
from kivy.uix.label import Label
from kivy.uix.popup import Popup
from kivy.uix.relativelayout import RelativeLayout
from kivy.clock import Clock, mainthread
import time
from kivy.uix.spinner import Spinner
from kivy.uix.tabbedpanel import TabbedPanel, TabbedPanelItem
from kivy.uix.textinput import TextInput
from kivy.uix.widget import Widget
from kivy.properties import ObjectProperty
from wifi import Scheme, Cell
class WifiLayout(RelativeLayout):
global alive
# awai = ObjectProperty()
switchwifi = ObjectProperty()
wifilayout = ObjectProperty()
wifiscreen = ObjectProperty()
def offRefresh(self):
alive = False
class myApp(App):
def build(self):
return WifiLayout()
def checkIfExist(ssid):
schemes = list(Scheme.all())
for scheme in schemes:
checkSsid = scheme.options.get('wpa-ssid', scheme.options.get('wireless-essid'))
if checkSsid == ssid:
return True
else:
return False
def refresh(self):
global alive
try:
cell = Cell.all('wlan0')
except:
print "CELL ERROR"
return
if not alive:
return
self.wifilayout.clear_widgets()
for c in cell:
if c.ssid:
self.networkButton = ssidButton(text=c.ssid, cellname= c , height=50,size_hint_y=None,background_color=(0.9411,0.9725,1,1))#,on_release=self.ssidclicked))
self.wifilayout.add_widget(self.networkButton)
def wifi_on(self):
global alive
switch = self.root.switchwifi
self.wifilayout = self.root.wifilayout
# wifi_label = self.root.ids.wifi_label
if switch.active:
## self.refresh()
alive = True
def A():
while alive:
self.refresh()
time.sleep(5)
if alive:
thread = threading.Thread(target=A)
# thread.daemon = True
thread.start()
else:
alive = False
self.wifilayout.clear_widgets()
class ssidButton(Button):
def __init__(self, cellname, **kwargs):
super(ssidButton, self).__init__(**kwargs)
self.cell = cellname
def enterPasswordEntryPopup(self, modify=False):
global popup, ip
def cancel(event):
global popup
popup.dismiss()
return
def connect(event):
global activateThread
global popup, alive
def connecting():
global stop
inalive = True
while inalive:#True:
## if stop.is_set():
## return
connectnet()
time.sleep(1)
inalive = False
def connectnet():
global stopper, alive
print "ACTIVATING"
self.scheme.activate()
popup.dismiss()
print "ACTIVATED"
self.password = self.network_password.text
if modify:
self.scheme.delete()
self.iptext = ip.text
self.gwtext = gateway.text
self.nmtext = netmask.text
print self.password, self.iptext, self.gwtext, self.nmtext
self.scheme = Scheme.for_cell('wlan0', self.schemeName, self.cell, self.password)
self.scheme.save()
activateThread = threading.Thread(target=connectnet)
activateThread.start()
connectncancel = BoxLayout()
connectncancel.add_widget(Button(text="Cancel", on_release=cancel))
connectncancel.add_widget(Button(text="Connect", on_release=connect))
passwordEntryContent = BoxLayout(orientation='vertical')
passwordEntryContent.add_widget(Label(text='Password'))
self.network_password = TextInput(multiline=False, password=False)
passwordEntryContent.add_widget(self.network_password)
windowSize = (300, 200)
if modify:
b = BoxLayout()
a = AnchorLayout()
t = TextInput(text=self.network_password.text, size_hint_x=1, password=False, size_hint_y=.8)
a.add_widget(t)
b1 = BoxLayout(spacing='20dp')
b1.add_widget(Label(text="Password", size_hint_x=.5))
b1.add_widget(a)
# b1.add_widget(Button(height = 10,text = "OK"))
b3 = BoxLayout(padding="5dp", spacing="20dp")
cancel = Button(text="Cancel")
save = Button(text="Save")
b3.add_widget(cancel)
b3.add_widget(save)
b2 = BoxLayout()
b2.add_widget(Widget(size_hint_x=1))
b2.add_widget(CheckBox(size_hint_x=.5))
b2.add_widget(Label(text="Show Password", size_hint_x=.5))
b2.add_widget((Widget(size_hint_x=1)))
bm = BoxLayout(orientation='vertical')
bm.add_widget(b1)
bm.add_widget(b2)
bm.add_widget(b3)
tabbed_panel = TabbedPanel()
# tabbed_panel.do_default_tab = False
content = BoxLayout(orientation='vertical')
# content.add_widget(Label(markup = True,text = "[b] Device MAC address : [/b]" + self.wifimacaddress))
content.add_widget(bm)
tabbed_panel.default_tab_content = content
tabbed_panel.default_tab_text = "Wifi"
b.add_widget(tabbed_panel)
######------ipv4tab-------#########
ipv4tab = TabbedPanelItem(text="IPV4 Settings")
ipv4tabcontent = BoxLayout(orientation='vertical')
b1 = BoxLayout(padding="10dp", size_hint_y=1)
l = Label(text="Method")
s = Spinner(text="Automatic(DHCP)", values=["Manual", "Automatic(DHCP)"]) # on_text
b1.add_widget(l)
b1.add_widget(s)
b2 = BoxLayout(padding='2dp', spacing='5dp', size_hint_y=1)
b21 = BoxLayout(orientation='vertical')
iplabel = Label(text="Address")
ipaddress = TextInput(multiline=False)
b21.add_widget(iplabel)
b21.add_widget(ipaddress)
# b22 = BoxLayout(orientation = "vertical")
b22 = BoxLayout(orientation='vertical')
nmlabel = Label(text="Netmask")
netmask = TextInput(multiline=False)
b22.add_widget(nmlabel)
b22.add_widget(netmask)
# b23 = BoxLayout(orientation="vertical")
b23 = BoxLayout(orientation='vertical')
gwlabel = Label(text="Gateway")
gateway = TextInput(multiline=False)
b23.add_widget(gwlabel)
b23.add_widget(gateway)
b2.add_widget(b21)
b2.add_widget(b22)
b2.add_widget(b23)
ipv4tabcontent.add_widget(b1)
ipv4tabcontent.add_widget(b2)
ipv4tabcontent.add_widget(Button(text="Save", size_hint_y=.5))
ipv4tab.content = ipv4tabcontent
tabbed_panel.add_widget(ipv4tab)
windowSize = (500, 250)
popup = Popup(title=self.text,
size_hint=(None, None), size=windowSize,
# pos=(50, 50),
# pos_hint={'x':0,'top':1},
pos_hint={'middle': 1, 'top': 1},
content=b, disabled=False, auto_dismiss=True)
return popup
###################################
passwordEntryContent.add_widget(connectncancel)
# print(self.root,self.root.h,self.parent.width)
popup = Popup(title=self.text,
size_hint=(None, None), size=windowSize,
# pos=(50, 50),
# pos_hint={'x':0,'top':1},
# pos_hint={'right': 1, 'top': 1},
content=passwordEntryContent, disabled=False, auto_dismiss=False)
return popup
def on_release(self):
global popup
specialList = string.printable.split("Z")[-1]
self.schemeName = self.text
for char in specialList:
if char in self.schemeName:
self.schemeName = self.schemeName.split(char)[0]
break
self.scheme = Scheme.find('wlan0', self.schemeName)
if not self.scheme: # Scheme.find('wlan0', schemeName):
popup = self.enterPasswordEntryPopup()
popup.open()
#######################################
# scheme = Scheme.for_cell('wlan0', schemeName, cell, 'pikkme@123')
# elif self.scheme.options.get('wpa-ssid') != self.cell.ssid:
else:
def forgetnetwork(event):
global popup
self.scheme = Scheme.find('wlan0', self.schemeName)
self.scheme.delete()
commands.getoutput("sudo ifdown wifi")#killall dhclient")
popup.dismiss()
def modifynetwork(event):
global popup
popup.dismiss()
self.passwordPopup = self.enterPasswordEntryPopup(modify=True)
self.passwordPopup.open()
# Open(None)
# self.scheme = Scheme.find('wlan0', self.schemeName)
# self.activate()
##############################################3
content = BoxLayout(orientation='vertical', padding=10, spacing=10)
# content_cancel = Button(text='OK', size_hint_y=None, height=40)
content.add_widget(Button(text='Forget Network', on_release=forgetnetwork))
content.add_widget(Button(text='Modify Network', on_release=modifynetwork))
popup = Popup(title=self.text,
size_hint=(None, None), size=(300, 200),
content=content, disabled=False, auto_dismiss=True)
popup.open()
myApp().run()
我的.kv
<ScreenLabel@Label>:
pos_hint: {'x': 0, 'top': 1}
size_hint_y: .1
font_size: self.height/2
markup:True
bold: True
valign: 'middle'
halign: 'left'
text_size: self.size
padding: 40,100
canvas:
Color:
rgba: 47 / 255., 167 / 255., 212 / 255., .4
Rectangle:
pos: self.pos
size: self.size
<MyImageButton@ButtonBehavior+Image>:
<WifiLayout>:
name: "wifiscreen"
id: wifiscreen
switchwifi: switchwifi
wifilayout: wifilayout
on_touch_down: app.sstimer = 0
ScreenLabel:
text: 'Wi-Fi'
Switch:
id: switchwifi
pos_hint: {'right': .8, 'top': 1}
size_hint: .1,.1
on_active: app.wifi_on()
Button:
pos_hint: {'right':.92, 'top':1}
size_hint: .1,.1
on_release: app.exit()
text: "exit"
ScrollView:
pos_hint: {'x': 0,'y': 0.1}
size_hint: 1,.8
GridLayout:
cols: 1
rows:20
id: wifilayout
size_hint_y: None
height: self.minimum_height