How to switch between multiple Values in a cycle?-CodePudding

I want to switch between multiple values in a cycled kind of way. For example my variable "Counter" is initialised with 1 and by mouseclick i want it to switch to 2. Another mouseclick will change it to 3 and the next click will repeat the cycle by 1.

How do i do it by using QML?

Thank you in advance!

CodePudding user response：

onClicked{    
switch(counter) {
  case 1:
    counter=2
    break;
  case 2:
    counter=3
    break;
  case 3:
    counter=1
    break;
  default:
    console.log("counter out of rotation)
}
}

A switch-case statement should do the trick inside an "onClicked" handler of a button. You can also do it in many different other ways. Like incrementing counter by 1 each time you press the button and add a if statement that sets counter to 1 again when it reaches the value of 4.

CodePudding user response：

Button {
    id: button
    readonly property int counterStart: 1
    readonly property int counterEnd: 3
    property int counter: button.counterStart
    onClicked: {
        console.log(button.counter)
        button.counter = Math.max(button.counterStart,   button.counter % (button.counterEnd   1))
    }
}