linux下QT编写的连接wifi程序

#include "wifidlg.h" #include "ui_wifidlg.h" #include <QFile> #include <QDir> #include <unistd.h> #include <signal.h> #include <QDebug> #define WIFINUM 20 const QString wifiStrList = QString("/tmp/wifi.ini"); WifiDlg::WifiDlg(QWidget *parent) : QDialog(parent), ui(new Ui::WifiDlg) { ui->setupUi(this); m_currItem = nullptr; wifiListInit(); } WifiDlg::~WifiDlg() { delete ui; } void WifiDlg::currItemClicked(QWidget *p) { if(m_currItem) m_currItem->setConnectVisible(false); m_currItem = (WifiItem*)p; m_currItem->setConnectVisible(true); } void WifiDlg::wifiListInit() { system("sudo nmcli r wifi on"); system("sudo nmcli dev wifi > /tmp/wifi.ini"); usleep(10000); QLayoutItem *child; while ((child = ui->VLayout->takeAt(0)) != 0) { if(child->widget()) { child->widget()->setParent(NULL); } delete child; } m_currItem = nullptr; QFile file(wifiStrList); if(!file.open(QIODevice::ReadOnly)){ qDebug()<<"No such file!"; return; } int curLine = 0; QString line; if(file.size()!=0) { QTextStream in(&file); QString wifiFlag = "SSID"; //wifi名字符 QString modeFlag = "模式"; //wifi连接模式 line = in.readLine(); if(!line.isEmpty()) { int wifiIndex = line.indexOf(wifiFlag); //文件对应的wifi名索引值 int modeIndex = line.indexOf(modeFlag); while (!in.atEnd() ) { line = in.readLine(); //qDebug() << line << line.length(); if(!line.contains("Mbit/s")) continue; QString tmpStr = line; QString curConnection = line.left(1); //已连接wifi判断 QString wifiName = line.mid(wifiIndex,(modeIndex-wifiIndex)).simplified(); //获取wifi名称 int signalValue = tmpStr.split("Mbit/s").at(1).simplified().split(" ").at(0).toInt(); //获取wifi的信号强度 if(!wifiName.isEmpty()) { WifiItem *item = new WifiItem(wifiName, signalValue); connect(item, &WifiItem::itemClicked, this, &WifiDlg::currItemClicked); if(curConnection == "*") { item->setConnect(true); item->setConnectVisible(true); m_currItem = item; } ui->VLayout->addWidget(item); curLine++; } } } file.close(); } } void WifiDlg::on_btnRefresh_clicked() { wifiListInit(); } void WifiDlg::on_btnClose_clicked() { this->accept(); }