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[英]how to set text color like background color for light and dark mode on html email
[英]NSAttributedString initialised from HTML dark mode, how to set default foreground color?
在將現有應用程序轉換為暗模式時,我偶然發現了一個帶有NSAttributedString
的UITextView
的初始化,以便為某些應用程序商店的法律術語提供細則。 這在淺色模式下看起來不錯,但在深色模式下,我會在黑色上看到黑色文本。 我提供默認前景色的第一個想法是添加以下內容:
import UIKit
let fgColor: UIColor
if #available(iOS 13.0, *) {
fgColor = .label
} else {
fgColor = .black
}
let s = try NSAttributedString(data: NSLocalizedString("""
<p style="text-align: center; font-size: smaller;">
Your payment will be charged to your iTunes Account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your Account will be charged for renewal within 24-hours prior to the end of the current period at the same price as the original subscription.
</p>
<p style="text-align: center; font-weight: bold; font-size: smaller;">
<a href="https://www.example.com/tos.html">Terms of Service</a> | <a href="https://www.example.com/policy.html">Privacy Policy</a>
</p>
""", comment: "legalese").data(using: String.Encoding.utf8, allowLossyConversion: false)!,
options: [.documentType: NSAttributedString.DocumentType.html.rawValue,
.defaultAttributes: [NSAttributedString.Key.foregroundColor: fgColor]],
documentAttributes: nil)
但無論我嘗試什么,我都無法更改默認的前景色。 有任何想法嗎?
我試圖創建一個擴展。
在這里,數據是我要轉換為屬性字符串的 HTML 數據,“appLabelBlueColor”和“appSystemSecondaryColor”是我想在暗模式下反映的系統 colors。
var htmlToAttributedString: NSAttributedString? {
guard let data = data(using: .utf16,allowLossyConversion: true)
else { return NSAttributedString() }
do {
let attributedString = try NSMutableAttributedString(data: data, options: [NSAttributedString.DocumentReadingOptionKey.documentType: NSAttributedString.DocumentType.html], documentAttributes: nil)
attrbutedString.addAttributes([NSAttributedString.Key.font:UIFont.systemFont(ofSize: 10, weight: .light), NSAttributedString.Key.foregroundColor: UIColor(named: "appLabelBlueColor")!, NSAttributedString.Key.backgroundColor: UIColor(named: "appSystemSecondaryColor")!], range: NSRange(
location: 0,
length: attribitedString.length))
return attributedString
} catch
{
return NSAttributedString()
}
}
用法:
cell.detailLabel.attributedText = mfPerformanceTableObjectModel[indexPath.section].contentText.htmlToAttributedString
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