Question

我正在使用pyqt5创建一个GUI并使用qlcdnumber来显示一个变量，我通过套接字服务器从Android应用程序中检索该变量。问题是我找不到任何方法来显示我在qlcdnumber中的变量。

这是UI代码，我试图使用信号但没有用。

class MyTCPHandler(socketserver.StreamRequestHandler):
    def handle(self):
        while True:
            global angle, strength ,speed, a
            if(not enabled):
                # self.rfile is a file-like object created by the handler;
                # we can now use e.g. readline() instead of raw recv() calls
                self.data = self.rfile.readline().strip()
                if(a==0):
                    print("{} wrote:".format(self.client_address[0]))
                    a+=1
                data = self.data.decode("utf-8").rstrip().strip("\n")
                if(data!= ""):
                    if(data == "disconnect"):
                        print("restarting")
                        self.close()
                        sleep(1)
                        mainServer()
                    elif(data == "shutdown"):
                        p = subprocess.Popen("sudo shutdown -h now", shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
                        print(p)
                    else:    
                        temp = data.split(":")
                        angle = int(temp[0])
                        strength = int(temp[1])
                        speed = float(temp[2])


class Ui_AppWindow(QtWidgets.QWidget):

    def __init__(self):
        super(Ui_AppWindow, self).__init__()
        self.setStyleSheet('background-color:#efefef; color:white;')
        global add, angle, speed

        self.layout = QtWidgets.QVBoxLayout()

        self.label = QtWidgets.QLabel("\t\t"+add)
        self.label.setStyleSheet("color: #005C99;")
        self.layout.addWidget(self.label)

        palette = QtGui.QPalette()
        palette.setColor(palette.WindowText, QtGui.QColor(85, 85, 255))
        palette.setColor(palette.Background, QtGui.QColor(0, 170, 255))
        palette.setColor(palette.Light, QtGui.QColor(0, 92, 153))
        palette.setColor(palette.Dark, QtGui.QColor(0, 92, 137))

        self.speed = QtWidgets.QLCDNumber(self)
        self.speed.setGeometry(QtCore.QRect(100, 100, 64, 23))
        self.speed.setObjectName("speed")
        self.speed.display(speed)
        self.speed.setPalette(palette)

        self.angle = QtWidgets.QLCDNumber(self)
        self.angle.setGeometry(QtCore.QRect(200, 100, 64, 23))
        self.angle.setObjectName("angle")
        self.angle.display(angle)
        self.angle.setPalette(palette)

        self.speed_lable = QtWidgets.QLabel("Speed")
        self.speed_lable.setGeometry(QtCore.QRect(100, 70, 47, 25))
        self.speed_lable.setObjectName("speed_lable")
        self.speed_lable.setStyleSheet('color:#00497a;')

        self.angle_lable = QtWidgets.QLabel("Angle")
        self.angle_lable.setGeometry(QtCore.QRect(200, 70, 47, 25))
        self.angle_lable.setObjectName("angle_lable")
        self.angle_lable.setStyleSheet('color:#00497a;')

        self.hbl = QtWidgets.QHBoxLayout()
        self.hbl.addWidget(self.speed_lable)
        self.hbl.addWidget(self.angle_lable)
        self.layout.addLayout(self.hbl)

        self.hb = QtWidgets.QHBoxLayout()
        self.hb.addWidget(self.speed)
        self.hb.addWidget(self.angle)
        self.layout.addLayout(self.hb)

        self.setWindowTitle("RasControl GUI: Android Control")
        self.setLayout(self.layout)
        self.setGeometry(100, 100, 400, 200)


    def setAngle(self):
        global angle
        self.angle.display(angle)        

    def setSpeed(self):
        global speed
        self.speed.display(speed)

我想要设置的变量显示在qlcdnumber;

global speed, angle
server = socketserver.TCPServer((ip, port), MyTCPHandler)
server.serve_forever()

并在主GUI中调用Ui_AppWindow gui，但我需要每次更改时使用全局变量速度和角度的值更新qlcdnumber。

Answer 1

最简单的方法就是创建总是用来设置程序中全局变量值的函数，如下所示：

<?php

// composer require zendframework/zend-soap

require_once __DIR__ . '/vendor/autoload.php';

$client = new Zend\Soap\Client("http://demo.coveto.de/soap?wsdl");
$result1 = $client->getFunctions();
var_dump($result1);

检测全局变量的变化

1 个答案: