QQ界面

widget.cpp

#include "widget.h"Widget::Widget(QWidget *parent): QWidget(parent)
{//设置框体的大小和颜色this->setFixedSize(350,500);this->setStyleSheet("background-color:#e5f0ff;");//创建一个LineEdit edit1edit1 = new QLineEdit(this);//设置对应的颜色字体位置edit1->setStyleSheet("background-color:white;font-size: 20px;color:black;");edit1->resize(286,45);edit1->move(35,186);edit1->setPlaceholderText("输入QQ号");edit1->setAlignment(Qt::AlignCenter);//创建一个LineEdit edit2edit2 = new QLineEdit(this);//设置对应的颜色字体位置edit2->setStyleSheet("background-color:white;color:black;font-size: 20px;");edit2->resize(286,45);edit2->move(edit1->x(),edit1->y()+edit1->height()+20);edit2->setPlaceholderText("输入QQ密码");edit2->setAlignment(Qt::AlignCenter);edit2->setEchoMode(QLineEdit::Password);//设置RadioButtonQRadioButton *rbutton = new QRadioButton("已阅读并同意服务协议和QQ隐私保护指引", this);rbutton->move(edit2->x()+10,edit2->y()+edit2->height()+20);connect(rbutton,&QRadioButton::clicked,this,&Widget::rbutton_clicked_slot);//创建按钮btn1btn1 = new QPushButton("登录",this);//设置btn的样式位置大小btn1->setStyleSheet("color:white;background-color:skyblue;border-radius:15px;font-size: 14px;");btn1->resize(130,40);btn1->move(edit1->x(),rbutton->y()+rbutton->height()+20);//绑定点击事件槽函数connect(btn1,&QPushButton::clicked,this,&Widget::btn1_clicked_slot);//创建按钮btn2btn2 = new QPushButton("取消",this);//设置btn的样式位置大小btn2->setStyleSheet("color:white;background-color:skyblue;border-radius:15px;font-size: 14px;");btn2->resize(130,40);btn2->move(btn1->width()+btn1->x()+20,rbutton->y()+rbutton->height()+20);//绑定点击事件connect(btn2,&QPushButton::clicked,this,&Widget::btn2_clicked_slot);//定义3个labelQLabel *label1 = new QLabel("扫码登录",this);QLabel *label2 = new QLabel("|",this);QLabel *label3 = new QLabel("更多选项",this);label1->move(175-60,445);label1->setStyleSheet("color:blue");label2->move(175,label1->y());label2->setStyleSheet("color:grey");label3->move(175+10,label1->y());label3->setStyleSheet("color:blue");QLabel *iconLabel = new QLabel(this);QPixmap pixmap(":/picture/head.jpg"); // 请确保有一个图标文件pixmap = pixmap.scaled(100, 100, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation); // 调整图标大小iconLabel->setPixmap(pixmap);iconLabel->setFixedSize(100, 100);iconLabel->setStyleSheet("border-radius: 45px; border: 2px solid white;"); // 设置圆形和边框iconLabel->setAlignment(Qt::AlignCenter);iconLabel->move(176-50,70); // 设置头像位置}Widget::~Widget()
{
}//btn1的点击事件槽函数
void Widget::btn1_clicked_slot(){//点击之后判断账号密码是否一致，一致则弹出登录成功并给出登录按钮，点击后弹出另一个窗口//当账号和密码不匹配是，给出错误对话框，给出信息为账号和密码不匹配，是否重新登录，//并提供两个按钮 Yes|No,如果用户点击了Yes，则清空密码框后，继续登录。如果用户点击的取消，则关闭登录界面QString get_edit1 = edit1->text();QString get_edit2 = edit2->text();qDebug()<<get_edit2;if(get_edit1==nullptr||get_edit2==nullptr){QMessageBox::question(this,"提示","输入不能为空",QMessageBox::Ok);}else if(get_edit1==get_edit2 ){QMessageBox box(QMessageBox::Information,"提示","登录成功！",QMessageBox::Ok,this);box.setButtonText(QMessageBox::Ok,"确认");int btn = box.exec();if(btn==QMessageBox::Ok){this->close();emit jump();}}else{int btn = QMessageBox::information(this,"提示","账号和密码不匹配,是否重新登录",QMessageBox::Yes|QMessageBox::No,QMessageBox::No);if(btn == QMessageBox::Yes){edit1->clear();edit2->clear();}else if(btn == QMessageBox::No){this->close();}}}//btn2的点击事件槽函数
void Widget::btn2_clicked_slot(){int btn = QMessageBox::question(this,"提示","是否退出登录",QMessageBox::Yes|QMessageBox::No,QMessageBox::No);if(btn == QMessageBox::Yes){this->close();}else if(btn == QMessageBox::No){}
}void Widget::rbutton_clicked_slot(){btn1->setStyleSheet("color:white;background-color:#0099FF;border-radius:15px;font-size: 14px;");btn2->setStyleSheet("color:white;background-color:#0099FF;border-radius:15px;font-size: 14px;");
}

second.cpp

#include "second.h"
#include "ui_second.h"Second::Second(QWidget *parent) :QWidget(parent),ui(new Ui::Second)
{ui->setupUi(this);}Second::~Second()
{delete ui;
}void Second::jump_slot(){this->show();
}

main.cpp

#include "widget.h"#include <QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);Widget w;w.show();Second s;//绑定w的jump发出的信号与Second中的槽QObject::connect(&w,&Widget::jump,&s,&Second::jump_slot);return a.exec();
}

wigdet.h

#ifndef WIDGET_H
#define WIDGET_H#include <QWidget>
#include <QPushButton>
#include <QLineEdit>
#include<QTextEdit>
#include <QPainter>
#include <QRadioButton>
#include <QLabel>
#include <QComboBox>
#include <second.h>     //添加second.h头文件
#include <QMessageBox>
#include<QDebug>
class Widget : public QWidget
{Q_OBJECTpublic:Widget(QWidget *parent = nullptr);~Widget();public slots://槽void btn1_clicked_slot();void btn2_clicked_slot();void rbutton_clicked_slot();signals://信号void jump();private:QLineEdit *edit1;QLineEdit *edit2;QPushButton *btn1;QPushButton *btn2;};
#endif // WIDGET_H

second.h

#ifndef SECOND_H
#define SECOND_H#include <QWidget>namespace Ui {
class Second;
}class Second : public QWidget
{Q_OBJECTpublic:explicit Second(QWidget *parent = nullptr);~Second();public slots://定义实现jump_slot信号函数void jump_slot();private:Ui::Second *ui;
};#endif // SECOND_H