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我正在嘗試新的iOS 7 API,並且下面的代碼需要一分鐘才能執行!NSAttributedString initWithData:options:documentAttributes:error:執行速度非常慢
NSLog(@"start encoding");
NSString *htmlBody = @"<html><body>I am <b>bold</b> and <i>italic</i>";
NSStringEncoding encoding = NSUnicodeStringEncoding;
NSData *data = [htmlBody dataUsingEncoding:encoding];
NSDictionary *options = @{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
NSCharacterEncodingDocumentAttribute: @(encoding)};
NSAttributedString *body = [[NSAttributedString alloc] initWithData:data
options:options
documentAttributes:nil
error:nil];
NSLog(@"end encoding%@", body);
這是怎麼回事?