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我有一个textView与图像,不同的文本样式等。我想在手表上显示它。有什么办法可以做到吗?Swift如何在手表上显示textStorage
我有一个textView与图像,不同的文本样式等。我想在手表上显示它。有什么办法可以做到吗?Swift如何在手表上显示textStorage
它不是一个在Apple Watch上显示NSAttributedString的代码,但是我使用它将NSAttributedString与图像形式相结合,以便于显示。 代码可能不是高质量的(我几乎可以肯定它不是,特别是缩放图像)。
func sendText(stext: NSMutableAttributedString) {
dispatch_async(dispatch_get_main_queue()) {
let range:NSRange = NSMakeRange(0, stext.length)
stext.enumerateAttributesInRange(range, options: NSAttributedStringEnumerationOptions.init(rawValue: 0), usingBlock: { (dic: [String:AnyObject]?, rang:NSRange!, stop: UnsafeMutablePointer<ObjCBool>) -> Void in
self.attachement = dic as NSDictionary!
self.attachement.enumerateKeysAndObjectsUsingBlock({ (key:AnyObject?, obj:AnyObject?, stop:UnsafeMutablePointer<ObjCBool>) -> Void in
let stri = key as! NSString!
if stri == "NSAttachment"{
let att:NSTextAttachment = obj as! NSTextAttachment
if att.image == nil{
print("no image")
}else{
var im:UIImage = att.image!
print("image exists")
if im.size.height > 340 && im.size.width > 272 {
let heightScale: CGFloat = self.textView.frame.size.height/im.size.height
let widthScale: CGFloat = self.textView.frame.size.width/im.size.width
if heightScale < widthScale {
let height = im.size.height * heightScale * 0.7
let width = im.size.width * heightScale * 0.7
UIGraphicsBeginImageContext(CGSizeMake(width, height))
im.drawInRect(CGRectMake(0, 0, width, height))
im = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
} else {
let height = im.size.height * widthScale * 0.7
let width = im.size.width * widthScale * 0.7
UIGraphicsBeginImageContext(CGSizeMake(width, height))
im.drawInRect(CGRectMake(0, 0, width, height))
im = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
}
}
self.lastRange = rang.location
self.finalForWatch.append(NSAttributedString(attributedString: stext.attributedSubstringFromRange(NSMakeRange(0, rang.location))))
self.finalForWatch.append(im)
}
}
if self.lastRange == 0 {
self.finalForWatch.append(stext)
} else {
self.finalForWatch.append(NSAttributedString(attributedString: stext.attributedSubstringFromRange(NSMakeRange(1, stext.length-1))))
}
})
})
let data: NSData = NSKeyedArchiver.archivedDataWithRootObject(self.finalForWatch)
let applicationDict = ["done" : data]
let documentDirectoryURL = try! NSFileManager.defaultManager().URLForDirectory(.DocumentDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true)
let fileDestinationUrl = documentDirectoryURL.URLByAppendingPathComponent("file.txt")
do{
try data.writeToURL(fileDestinationUrl, atomically: true)
} catch let error as NSError {
print("error writing to url \(fileDestinationUrl)")
print(error.localizedDescription)
}
self.session?.transferFile(fileDestinationUrl, metadata: nil)
}
}
我保存一切到一个文件中,并使用SENDFILE方法,因为appllicationContext,用户信息和消息总是返回“过大的有效载荷”。
这是你目前在iOS上使用的UITextView吗? – Doug
是的。我有UITextView与iOS应用程序中的图像和不同风格的字体。我想在手表上显示这些文字和图像。 – Woodgun11
所以你需要使用WKInterfaceLabel并在其上调用setAttributedText。看看这是一个起点:http://stackoverflow.com/a/28748030/370965 – Doug