Volker questions

Volker answers

• Change opacity for pre-defined color?
• Overwriting NSDocument's init(contentsOf:ofType:) in Swift
• NSSortDescriptor evaluating ascending numbers (Swift)
• How to monitor file change on iOS platform?
• How to Draw a single point line in iOS
• NSString hasPrefix: function with case sensitivity
• Change NSOpenPanel button text
• iOS get UTC timestamp
• Upload audio clip realtime while its recording?
• What's the use of Open Radar? [closed]