5.listview(QStringList QStringListModel)

Posted 2020-10-30 喵小喵~

• UI
• 
• mainwindow.h

   1 #ifndef MAINWINDOW_H
   2 #define MAINWINDOW_H
   3 
   4 #include <QMainWindow>
   5 #include <QStringListModel>
   6 
   7 namespace Ui {
   8 class MainWindow;
   9 }
  10 
  11 class MainWindow : public QMainWindow
  12 {
  13     Q_OBJECT
  14 
  15 public:
  16     explicit MainWindow(QWidget *parent = 0);
  17     ~MainWindow();
  18 
  19 private slots:
  20     //按下按钮
  21     void on_pushButton_clicked();
  22 　　//combox改变
  23     void on_comboBox_currentIndexChanged(int index);
  24 
  25 private:
  26     Ui::MainWindow *ui;
  27     //设置列表
  28     QStringList *sl;
  29     //设置模式,显示列表
  30     QStringListModel *slm;
  31 };
  32 
  33 #endif // MAINWINDOW_H

   

• mainwindow.cpp

   1 #include "mainwindow.h"
   2 #include "ui_mainwindow.h"
   3 #include <QStringListModel>
   4 
   5 MainWindow::MainWindow(QWidget *parent) :
   6     QMainWindow(parent),
   7     ui(new Ui::MainWindow)
   8 {
   9     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");
  26 
  27 }
  28 
  29 MainWindow::~MainWindow()
  30 {
  31     delete ui;
  32 }
  33 
  34 void MainWindow::on_pushButton_clicked()
  35 {
  36 
  37 
  38     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);
  45 }
  46 
  47 void MainWindow::on_comboBox_currentIndexChanged(int index)
  48 {
  49     //获取当前数据
  50     QString myqstr=ui->comboBox->currentText();
  51     ui->lineEdit->setText(myqstr);
  52 }

   

• main.cpp

   1 #include "mainwindow.h"
   2 #include <QApplication>
   3 
   4 int main(int argc, char *argv[])
   5 {
   6     QApplication a(argc, argv);
   7     MainWindow w;
   8     w.show();
   9 
  10     return a.exec();
  11 }