[英]Swift how change the background color and button border
我有功能:
func setSelectedSystemButtonColor(hoverButton: Int){
let defaultColor = UIColor(red: 0/255, green: 62/255, blue: 132/255, alpha: 1)
let selectedColor = UIColor(red: 251/255, green: 186/255, blue: 8/255, alpha: 1)
homeBtn.backgroundColor = defaultColor
productsBtn.backgroundColor = defaultColor
calculatorBtn.backgroundColor = defaultColor
conceptBtn.backgroundColor = defaultColor
tipBtn.backgroundColor = defaultColor
if hoverButton == 1 {
homeBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
if hoverButton == 2 {
productsBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
if hoverButton == 3 {
calculatorBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
if hoverButton == 4 {
conceptBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
if hoverButton == 5 {
tipBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
}
此功能旨在:a)將顏色重置為默認值,b)設置所選按鈕的背景顏色+添加邊框。
顏色正確更改,但是不顯示邊框。 邊框將在5px上
你忘了設置UIButton
邊框
button.layer.borderWidth = 0.8
您應該這樣做:
homeBtn.layer.borderWidth = 5
homeBtn.layer.borderColor = defaultColor.cgColor
而不是簡單地做:
homeBtn.layer.borderColor = defaultColor.cgColor
僅替換此行
let defaultColor = UIColor(red: 0.0/255.0, green: 62.0/255.0, blue: 132.0/255.0, alpha: 1)
與
let selectedColor = UIColor(red: 251.0/255.0, green: 186.0/255.0, blue: 8.0/255.0, alpha: 1)
為了顯示按鈕邊框,首先必須顯式指定homeBtn
邊框寬度,如下所示:
homeBtn.layer.borderWidth = 5.0
那么只有您可以像這樣向homeBtn
邊框圖層添加顏色:
homeBtn.layer.borderColor = defaultColor.cgColor
您可能需要重置所有按鈕的邊框寬度。
func setSelectedSystemButtonColor(hoverButton: Int){
let defaultColor = UIColor(red: 0/255, green: 62/255, blue: 132/255, alpha: 1)
let selectedColor = UIColor(red: 251/255, green: 186/255, blue: 8/255, alpha: 1)
homeBtn.backgroundColor = defaultColor
productsBtn.backgroundColor = defaultColor
calculatorBtn.backgroundColor = defaultColor
conceptBtn.backgroundColor = defaultColor
tipBtn.backgroundColor = defaultColor
// reset border width of all buttons
homeBtn.layer.borderWidth = 0.0
productsBtn.layer.borderWidth = 0.0
calculatorBtn.layer.borderWidth = 0.0
conceptBtn.layer.borderWidth = 0.0
tipBtn.layer.borderWidth = 0.0
// set border width for selected button
hoverButton.layer.borderWidth = 1.0
if hoverButton == 1 {
homeBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
if hoverButton == 2 {
productsBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
if hoverButton == 3 {
calculatorBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
if hoverButton == 4 {
conceptBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
if hoverButton == 5 {
tipBtn.backgroundColor = selectedColor
homeBtn.layer.borderColor = defaultColor.cgColor
}
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.