我正在尝试改善我的快速编码。
我有一个可以正常工作的if-else嵌套函数，我相信可以使用Switch语句更好地对其进行优化。任何人都可以建议正确的方法来执行此代码重构吗？
这是我的工作代码：
if firstButton.frame.contains(location) {
UIView.animate(withDuration: 0.4) {
self.firstButton.transform = CGAffineTransform(scaleX: -1, y: 1)
self.firstButton.alpha = 0
if self.tapCount == 0 {self.placeholderText1.textWithAnimation(text: self.firstButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 1 {self.placeholderText2.textWithAnimation(text: self.firstButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 2 {self.placeholderText3.textWithAnimation(text: self.firstButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 3 {self.placeholderText4.textWithAnimation(text: self.firstButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 4 {self.placeholderText5.textWithAnimation(text: self.firstButton.text!, duration: 0.3);self.lastLetterTapped()}
}
} else
if secondButton.frame.contains(location) {
UIView.animate(withDuration: 0.4) {
self.secondButton.transform = CGAffineTransform(scaleX: -1, y: 1)
self.secondButton.alpha = 0
if self.tapCount == 0 {self.placeholderText1.textWithAnimation(text: self.secondButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 1 {self.placeholderText2.textWithAnimation(text: self.secondButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 2 {self.placeholderText3.textWithAnimation(text: self.secondButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 3 {self.placeholderText4.textWithAnimation(text: self.secondButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 4 {self.placeholderText5.textWithAnimation(text: self.secondButton.text!, duration: 0.3);self.lastLetterTapped()}
}
} else
if thirdButton.frame.contains(location) {
UIView.animate(withDuration: 0.4) {
self.thirdButton.transform = CGAffineTransform(scaleX: -1, y: 1)
self.thirdButton.alpha = 0
if self.tapCount == 0 {self.placeholderText1.textWithAnimation(text: self.thirdButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 1 {self.placeholderText2.textWithAnimation(text: self.thirdButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 2 {self.placeholderText3.textWithAnimation(text: self.thirdButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 3 {self.placeholderText4.textWithAnimation(text: self.thirdButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 4 {self.placeholderText5.textWithAnimation(text: self.thirdButton.text!, duration: 0.3);self.lastLetterTapped()}
}
} else
if fourthButton.frame.contains(location) {
UIView.animate(withDuration: 0.4) {
self.fourthButton.transform = CGAffineTransform(scaleX: -1, y: 1)
self.fourthButton.alpha = 0
if self.tapCount == 0 {self.placeholderText1.textWithAnimation(text: self.fourthButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 1 {self.placeholderText2.textWithAnimation(text: self.fourthButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 2 {self.placeholderText3.textWithAnimation(text: self.fourthButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 3 {self.placeholderText4.textWithAnimation(text: self.fourthButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 4 {self.placeholderText5.textWithAnimation(text: self.fourthButton.text!, duration: 0.3);self.lastLetterTapped()}
}
} else
if fifthButton.frame.contains(location) {
UIView.animate(withDuration: 0.4) {
self.fifthButton.transform = CGAffineTransform(scaleX: -1, y: 1)
self.fifthButton.alpha = 0
if self.tapCount == 0 {self.placeholderText1.textWithAnimation(text: self.fifthButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 1 {self.placeholderText2.textWithAnimation(text: self.fifthButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 2 {self.placeholderText3.textWithAnimation(text: self.fifthButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 3 {self.placeholderText4.textWithAnimation(text: self.fifthButton.text!, duration: 0.3);self.tapCount += 1}
else if self.tapCount == 4 {self.placeholderText5.textWithAnimation(text: self.fifthButton.text!, duration: 0.3);self.lastLetterTapped()}
}
}
不是经过优化的代码，但是像跟随代码一样，将重复的动作代码作为函数组合
func findButton(location: CGPoint) -> UIButton {
if firstButton.frame.contains(location) {
return firstButton
} else if secondButton.frame.contains(location) {
return secondButton
} else if thirdButton.frame.contains(location) {
return thirdButton
} else if fourthButton.frame.contains(location) {
return fourthButton
} else if fifthButton.frame.contains(location) {
return fifthButton
}
}
func anything (button: UIButton) {
UIView.animate(withDuration: 0.4) {[weak self] in
guard let `self` = self { return }
self.button.transform = CGAffineTransform(scaleX: -1, y: 1)
self.button.alpha = 0
switch self.tapCount {
case 0:
self.placeholderText1.textWithAnimation(text: button.text!, duration: 0.3)
self.tapCount += 1
case 1:
self.placeholderText2.textWithAnimation(text: button.text!, duration: 0.3)
self.tapCount += 1
case 2:
self.placeholderText3.textWithAnimation(text: button.text!, duration: 0.3)
self.tapCount += 1
case 3:
self.placeholderText4.textWithAnimation(text: button.text!, duration: 0.3)
self.tapCount += 1
case 4:
self.placeholderText5.textWithAnimation(text: button.text!, duration: 0.3)
self.lastLetterTapped()
}
}
anything(button: findButton(location location))