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