单击按钮时如何使进度条增加? Swift

How do you make progress bar increase when button is clicked ? Swift

我希望进度条在 "next button is pressed" 时增加,因为在我的代码中有 if, else 语句说

@IBAction func nextButton(_ sender: UIButton) {
    if progressBar.progress == Float(0.25) {
        labelText.text = "first label"
    }
    else if progressBarCY.progress == Float(0.50) {
        labelText.text = "second label"
    }
}

首先在函数外,需要设置进度条值

progressBar.progress = 0

然后在 nextButton 函数中,您可以为进度条添加更多值。

@IBAction func nextButton(_ sender: UIButton) {
progressBar.progress += 0.25
if progressBar.progress == 0.25 {
labelText.text = "first label" }
else if progressBar.progress == 0.50 {
labelText.text = "second label" } }