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iOS: Log view: Improve the look 

Signed-off-by: Roopesh Chander <roop@roopc.net>
This commit is contained in:
Roopesh Chander 2019-04-28 01:45:02 +05:30
parent 83ea9d6fa7
commit 5914e868ab
1 changed files with 23 additions and 3 deletions
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26
WireGuard/WireGuard/UI/iOS/ViewController/LogViewController.swift
View File

@ -20,6 +20,15 @@ class LogViewController: UIViewController {
return busyIndicator return busyIndicator
}() }()
let paragraphStyle: NSParagraphStyle = {
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.setParagraphStyle(NSParagraphStyle.default)
paragraphStyle.lineHeightMultiple = 1.2
return paragraphStyle
}()
var isNextLineHighlighted = false
var logViewHelper: LogViewHelper? var logViewHelper: LogViewHelper?
var isFetchingLogEntries = false var isFetchingLogEntries = false
private var updateLogEntriesTimer: Timer? private var updateLogEntriesTimer: Timer?
@ -68,9 +77,20 @@ class LogViewController: UIViewController {
} }
guard !fetchedLogEntries.isEmpty else { return } guard !fetchedLogEntries.isEmpty else { return }
let isScrolledToEnd = self.textView.contentSize.height - self.textView.bounds.height - self.textView.contentOffset.y < 1 let isScrolledToEnd = self.textView.contentSize.height - self.textView.bounds.height - self.textView.contentOffset.y < 1
let text = fetchedLogEntries.reduce("") { $0 + $1.text() + "\n" }
let font = UIFont.preferredFont(forTextStyle: UIFont.TextStyle.body) let richText = NSMutableAttributedString()
let richText = NSAttributedString(string: text, attributes: [.font: font]) let bodyFont = UIFont.preferredFont(forTextStyle: UIFont.TextStyle.body)
let captionFont = UIFont.preferredFont(forTextStyle: UIFont.TextStyle.caption1)
let lightGrayColor = UIColor(white: 0.88, alpha: 1.0)
for logEntry in fetchedLogEntries {
let bgColor = self.isNextLineHighlighted ? lightGrayColor : UIColor.white
let timestampText = NSAttributedString(string: logEntry.timestamp + "\n", attributes: [.font: captionFont, .backgroundColor: bgColor, .paragraphStyle: self.paragraphStyle])
let messageText = NSAttributedString(string: logEntry.message + "\n", attributes: [.font: bodyFont, .backgroundColor: bgColor, .paragraphStyle: self.paragraphStyle])
richText.append(timestampText)
richText.append(messageText)
self.isNextLineHighlighted.toggle()
}
self.textView.textStorage.append(richText) self.textView.textStorage.append(richText)
if isScrolledToEnd { if isScrolledToEnd {
let endOfCurrentText = NSRange(location: (self.textView.text as NSString).length, length: 0) let endOfCurrentText = NSRange(location: (self.textView.text as NSString).length, length: 0)