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Serializing UITextView with custom NSTextContainer does not restore text container


How to style UITextview to like Rounded Rect text field?iOS custom UITextView with vertical textCreate a customized table view cell using swiftUITextView textContainer exclusion path fails if full width and positioned at top of textContainerHow to rotate the text fragments of a NSTextContainer in a UITextView?NSTextContainer exclusionPaths move with textText garbled when using NSTextContainer/NSLayoutManager with UITextViewIssues with casting celltypes to dequeueUITextView does not fit NSTextContainer exactlyImplementing Hashable and NSCoding in the same class in Swift






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0















I have a UITextView using a custom subclassed NSTextContainer. My subclass is called TDTBezierPathTextContainer. I am creating the UITextView like this:



let textContainer = TDTBezierPathTextContainer(size:CGSize.zero) //NSTextContainer subclass
...
textView = UITextView(frame:r, textContainer:textContainer)


This all works, but I need to store and restore the exact state of the text view. For this, I am using the NSCoding protocol.



I am encoding the text view like this:



override public func encode(with aCoder: NSCoder) 
super.encode(with: aCoder)
aCoder.encode(textView, forKey: "textView")



I am decoding like this:



public required init?(coder aDecoder: NSCoder) 
super.init(coder: aDecoder)
if let textView = aDecoder.decodeObject(forKey: "textView") as? UITextView
textView.delegate = self
addSubview(textView)
self.textView = textView




The problem is that encoding the UITextView does not encode my custom text container (even though it is in its graph). When I decode the text view, it seems to be using the default text container.



Apparently, the only way to specify the text container is when the UITextView is instantiated, so it seems impossible to restore my text view with my custom text container.



I have tried creating a new textview and setting all of the relevant properties the same, but the restore textview is slightly different.



Is there any way to store/restore a UITextView with a custom NSTextContainer intact?










share|improve this question






























    0















    I have a UITextView using a custom subclassed NSTextContainer. My subclass is called TDTBezierPathTextContainer. I am creating the UITextView like this:



    let textContainer = TDTBezierPathTextContainer(size:CGSize.zero) //NSTextContainer subclass
    ...
    textView = UITextView(frame:r, textContainer:textContainer)


    This all works, but I need to store and restore the exact state of the text view. For this, I am using the NSCoding protocol.



    I am encoding the text view like this:



    override public func encode(with aCoder: NSCoder) 
    super.encode(with: aCoder)
    aCoder.encode(textView, forKey: "textView")



    I am decoding like this:



    public required init?(coder aDecoder: NSCoder) 
    super.init(coder: aDecoder)
    if let textView = aDecoder.decodeObject(forKey: "textView") as? UITextView
    textView.delegate = self
    addSubview(textView)
    self.textView = textView




    The problem is that encoding the UITextView does not encode my custom text container (even though it is in its graph). When I decode the text view, it seems to be using the default text container.



    Apparently, the only way to specify the text container is when the UITextView is instantiated, so it seems impossible to restore my text view with my custom text container.



    I have tried creating a new textview and setting all of the relevant properties the same, but the restore textview is slightly different.



    Is there any way to store/restore a UITextView with a custom NSTextContainer intact?










    share|improve this question


























      0












      0








      0








      I have a UITextView using a custom subclassed NSTextContainer. My subclass is called TDTBezierPathTextContainer. I am creating the UITextView like this:



      let textContainer = TDTBezierPathTextContainer(size:CGSize.zero) //NSTextContainer subclass
      ...
      textView = UITextView(frame:r, textContainer:textContainer)


      This all works, but I need to store and restore the exact state of the text view. For this, I am using the NSCoding protocol.



      I am encoding the text view like this:



      override public func encode(with aCoder: NSCoder) 
      super.encode(with: aCoder)
      aCoder.encode(textView, forKey: "textView")



      I am decoding like this:



      public required init?(coder aDecoder: NSCoder) 
      super.init(coder: aDecoder)
      if let textView = aDecoder.decodeObject(forKey: "textView") as? UITextView
      textView.delegate = self
      addSubview(textView)
      self.textView = textView




      The problem is that encoding the UITextView does not encode my custom text container (even though it is in its graph). When I decode the text view, it seems to be using the default text container.



      Apparently, the only way to specify the text container is when the UITextView is instantiated, so it seems impossible to restore my text view with my custom text container.



      I have tried creating a new textview and setting all of the relevant properties the same, but the restore textview is slightly different.



      Is there any way to store/restore a UITextView with a custom NSTextContainer intact?










      share|improve this question
















      I have a UITextView using a custom subclassed NSTextContainer. My subclass is called TDTBezierPathTextContainer. I am creating the UITextView like this:



      let textContainer = TDTBezierPathTextContainer(size:CGSize.zero) //NSTextContainer subclass
      ...
      textView = UITextView(frame:r, textContainer:textContainer)


      This all works, but I need to store and restore the exact state of the text view. For this, I am using the NSCoding protocol.



      I am encoding the text view like this:



      override public func encode(with aCoder: NSCoder) 
      super.encode(with: aCoder)
      aCoder.encode(textView, forKey: "textView")



      I am decoding like this:



      public required init?(coder aDecoder: NSCoder) 
      super.init(coder: aDecoder)
      if let textView = aDecoder.decodeObject(forKey: "textView") as? UITextView
      textView.delegate = self
      addSubview(textView)
      self.textView = textView




      The problem is that encoding the UITextView does not encode my custom text container (even though it is in its graph). When I decode the text view, it seems to be using the default text container.



      Apparently, the only way to specify the text container is when the UITextView is instantiated, so it seems impossible to restore my text view with my custom text container.



      I have tried creating a new textview and setting all of the relevant properties the same, but the restore textview is slightly different.



      Is there any way to store/restore a UITextView with a custom NSTextContainer intact?







      ios serialization uitextview nscoding nstextcontainer






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 23 at 8:05







      Jeshua Lacock

















      asked Mar 23 at 7:47









      Jeshua LacockJeshua Lacock

      3,16211637




      3,16211637






















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