Bad Access crash while converting to NSMutableattributed string

Question

While doing parsing I'm converting HTML string data to attributed string text using below lines of code,

 obj.strPlainText=[[NSMutableAttributedString alloc] initWithData:[obj.strContent dataUsingEncoding:NSUTF8StringEncoding]      
                                                          options:@{NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType,
                                                               NSCharacterEncodingDocumentAttribute:@(NSUTF8StringEncoding)} 
                                               documentAttributes:nil 
                                                            error:nil];

but my app gives bad access I'm getting an error,

[NSHTMLWebDelegate retain]: message sent to deallocated instance 0x7fa9fe027130

Answer 1

[NSAttributedString alloc] initWithData:[htmlString dataUsingEncoding:NSUTF8StringEncoding] options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType, NSCharacterEncodingDocumentAttribute: @(NSUTF8StringEncoding)} documentAttributes:nil error:nil];

But the app will crash if you are running it on ios 8.1,2 or 3. To avoid the crash what you can do is : run this in a queue. So that it always be on main thread.

Answer 2

if your are releasing strPlainText and also using ARC in your project then no need to write release for strPlainText

Answer 3

Using this will solve your problem I think: (if it is 7.0+)

NSError* error;
NSMutableAttributedString* str = [[NSMutableAttributedString alloc] initWithData:[source dataUsingEncoding:NSUTF8StringEncoding]
                                     options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
                                     NSCharacterEncodingDocumentAttribute: [NSNumber numberWithInt:NSUTF8StringEncoding]}
                                     documentAttributes:nil error:&error];

You have to set str to your obj.strPlainText like obj.attributedString = str;