qt开发的嵌入式界面，按向下按钮不向下移动，向右移动

Question

 

 

按向下键后

 

下面是用到的排列按钮的源程序

    

 

    QPushButton *btn1 = new QPushButton("ADC",this);

    QPushButton *btn2 = new QPushButton("RTC",this);

    QPushButton *btn3 = new QPushButton("FRAM",this);

    QPushButton *btn4 = new QPushButton("USB",this);

    QPushButton *btn5 = new QPushButton("串口",this);

    QPushButton *btn6 = new QPushButton("LED",this);

    QPushButton *btn7 = new QPushButton("遥信",this);

    QPushButton *btn8 = new QPushButton("SPI",this);

    QPushButton *btn9 = new QPushButton("Ethernet",this);

 

 

    QGridLayout *grid = new QGridLayout;

    grid->addWidget(btn1,0,0);

    grid->addWidget(btn2,0,1);

    grid->addWidget(btn3,1,0);

    grid->addWidget(btn4,1,1);

    grid->addWidget(btn5,2,0);

    grid->addWidget(btn6,2,1);

    grid->addWidget(btn7,3,0);

    grid->addWidget(btn8,3,1);

    grid->addWidget(btn9,4,0);

 

    QVBoxLayout *mainLayout = new QVBoxLayout;

    mainLayout->setMargin(10);

    mainLayout->setSpacing(10);

    mainLayout->addLayout(grid);

    setLayout(mainLayout);

 

    connect(btn1,SIGNAL(clicked()),this,SLOT(slotADC()));

    connect(btn2,SIGNAL(clicked()),this,SLOT(slotRTC()));

    connect(btn3,SIGNAL(clicked()),this,SLOT(slotFRAM()));

    connect(btn4,SIGNAL(clicked()),this,SLOT(slotUSB()));

    connect(btn5,SIGNAL(clicked()),this,SLOT(slotSERIAL()));

    connect(btn6,SIGNAL(clicked()),this,SLOT(slotLED()));

    connect(btn7,SIGNAL(clicked()),this,SLOT(slotYX()));

    connect(btn8,SIGNAL(clicked()),this,SLOT(slotSPI()));

    connect(btn9,SIGNAL(clicked()),this,SLOT(slotEthernet()));

 

大家帮忙看看应该怎么改，才能实现按向下按钮会向下移动而不是向右移动

Answer 1

 QKeyEvent *e;

Answer 2

我添加了

 QWidget::setTabOrder(btn2,btn4);

    QWidget::setTabOrder(btn4,btn6);

    QWidget::setTabOrder(btn6,btn8);

    QWidget::setTabOrder(btn1,btn3);

    QWidget::setTabOrder(btn3,btn5);

    QWidget::setTabOrder(btn5,btn7);

    QWidget::setTabOrder(btn7,btn9);

    QWidget::setTabOrder(btn8,btn9);

    QWidget::setTabOrder(btn9,btn1);

能实现上下，不能实现左右，后来又仔细想了一下，如果想实现像手机上的上下左右按钮功能，必须每个按钮的四个方向都要考虑。

Answer 3

谢谢，我改一下试试

Answer 4

我的意思是按向下键，应该从ADC移到FRAM，但是却跑到RTC上，这个应该怎么改

Answer 5

没明白你的意思。界面都是直接用QtCreator拖的，很久木有自己写layout的代码了。