5.listview(QStringList QStringListModel)

• UI
• 
• mainwindow.h

  #ifndef MAINWINDOW_H
  #define MAINWINDOW_H
  
  #include <QMainWindow>
  #include <QStringListModel>
  
  namespace Ui {
  class MainWindow;
  }
  
  class MainWindow : public QMainWindow
  {
      Q_OBJECT
  
  public:
      explicit MainWindow(QWidget *parent = 0);
      ~MainWindow();
  
  private slots:
      //按下按钮
      void on_pushButton_clicked();
  22 　　//combox改变
  23     void on_comboBox_currentIndexChanged(int index);
  
  private:
      Ui::MainWindow *ui;
  27     //设置列表
  28     QStringList *sl;
  29     //设置模式,显示列表
  30     QStringListModel *slm;
  };
  
  #endif // MAINWINDOW_H

• mainwindow.cpp

  #include "mainwindow.h"
  #include "ui_mainwindow.h"
  #include <QStringListModel>
  
  MainWindow::MainWindow(QWidget *parent) :
      QMainWindow(parent),
      ui(new Ui::MainWindow)
  {
      ui->setupUi(this);
  10     sl = new QStringList();
  11     sl->append("hello1");
  12     sl->append("hello2");
  13     sl->append("hello3");
  14     sl->append("hello4");
  15     //创建字符串模式
  16     slm = new QStringListModel(this);
  17     slm->setStringList(*sl);
  18     //显示
  19     ui->listView->setModel(slm);
  20 
  21     //设置combox选项
  22     ui->comboBox->insertItem(0,"hello1","hello1");
  23     ui->comboBox->insertItem(1,"hello2","hello2");
  24     ui->comboBox->insertItem(2,"hello3","hello3");
  25     ui->comboBox->insertItem(3,"hello4","hello4");
  
  }
  
  MainWindow::~MainWindow()
  {
      delete ui;
  }
  
  void MainWindow::on_pushButton_clicked()
  {
  
  
      QString qstr;
  39     qstr = ui->lineEdit->text();
  40     sl->append(qstr);
  41     //模式设置字符串
  42     slm->setStringList(*sl);
  43     //显示
  44     ui->listView->setModel(slm);
  }
  
  void MainWindow::on_comboBox_currentIndexChanged(int index)
  {
      //获取当前数据
  50     QString myqstr=ui->comboBox->currentText();
  51     ui->lineEdit->setText(myqstr);
  }

• main.cpp

  #include "mainwindow.h"
  #include <QApplication>
  
  int main(int argc, char *argv[])
  {
      QApplication a(argc, argv);
      MainWindow w;
      w.show();
  
      return a.exec();
  }