ios - Concatenate NSMutableAttributedStrings in UITextView -

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i'm going crazy :( working in ios6

i have uitextview text in each second append nsstring , scroll last line appended. way ->

        [textview settext:[textview.text stringbyappendingstring:newtext]];         [textview scrollrangetovisible:nsmakerange([textview.text length], 0)];

i use nsmutableattributedstrings instead of nsstring in order format text.

i have been searching everywhere haven't found anything. there way concatenate nsmutableattributedstrings?? current in uitextview , new one??

thanks in advance


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