有一个非常小众的问题，我已经在示例项目中实现了PayPal ios SDK，但是当我将import UIKit
@IBDesignable
class CustomTextField: UITextField {
@IBInspectable var prefix : String = ""
@IBInspectable var removePrefixOnEditing : Bool = true
override init(frame: CGRect) {
super.init(frame: frame)
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
override func awakeFromNib() {
super.awakeFromNib()
self.addTarget(self, action: #selector(setCurrencyLabelPosition), for: .editingDidEnd)
self.addTarget(self, action: #selector(removePrefix), for: .editingDidBegin)
}
func removePrefix(){
if self.attributedText != nil
{
if(self.removePrefixOnEditing)
{
self.defaultTextAttributes = [NSFontAttributeName : UIFont.systemFont(ofSize: 20)]
let prefixRange = NSString(string: (self.attributedText?.string)!).range(of: prefix)
if(prefixRange.location != NSNotFound)
{
self.attributedText = NSAttributedString(string: (self.attributedText?.string.replacingOccurrences(of: prefix, with: ""))!, attributes: self.defaultTextAttributes)
}
}
}
}
func setCurrencyLabelPosition(){
if self.attributedText != nil
{
var fullText:String = "\((self.attributedText?.string)!)"
if(NSString(string: (self.attributedText?.string)!).range(of: prefix).location == NSNotFound)
{
fullText = "\(prefix)\((self.attributedText?.string)!)"
}
//hacky part, seems to be a bug in UITextField
self.defaultTextAttributes = [NSFontAttributeName : UIFont.systemFont(ofSize: 10)]
self.attributedText = NSAttributedString(attributedString: self.changeFontForText(originalText: fullText, text: prefix, basicFont: UIFont.systemFont(ofSize: 20), newFont: UIFont.systemFont(ofSize: 12)))
}
}
func changeFontForText(originalText:String,text:String,basicFont:UIFont, newFont:UIFont) -> NSMutableAttributedString
{
let resultAttributedString = NSMutableAttributedString(string: originalText, attributes: [NSFontAttributeName : basicFont])
let range = NSString(string: originalText).range(of: text)
if(range.location != NSNotFound)
{
resultAttributedString.setAttributes([NSFontAttributeName:newFont], range: range)
}
return resultAttributedString
}
}
变量更改为true时。使用信用卡付款按钮显示，但如果您单击它，应用程序崩溃。我还需要添加哪些其他代码才能使其正常工作？
答案 0 :(得分：1)
经过一些测试后，我意识到问题是相机权限。 Paypal需要使用你的相机，所以你必须将相机权限放在info.plist中。要执行此操作，只需在密钥$(PRODUCT_NAME) camera use下添加Privacy - Camera Usage Description。
答案 1 :(得分：0)
在Paypal 2.15.1版之后，信用卡付款已弃用