uitableview - Issue with Dynamic height for Custom tableview cell UIlabel -

i want show uilabel dynamic height in uitableview custom cell.i know following code should work.

this written @ cell row @ index

    cell.lblcomment.linebreakmode = nslinebreakbywordwrapping;     cell.lblcomment.numberoflines = 0;     cell.lblcomment.font = [uifont fontwithname:@"helvetica" size:14.0];   nsstring *celltext = @"test test test test test test test test test test test";  uifont *cellfont = cell.lblcomment.font;         cgsize constraintsize = cgsizemake(205.0f, maxfloat);         cgsize labelsize = [celltext sizewithfont:cellfont constrainedtosize:constraintsize linebreakmode:nslinebreakbywordwrapping];         cgrect newframe = cell.lblcomment.frame;         newframe.size.height = labelsize.height;         cell.lblcomment.frame = newframe;         cell.lblcomment.text = celltext;         [cell.lblcomment sizetofit]; 

this written @ height delegate method.

- (cgfloat)tableview:(uitableview *)tableview heightforrowatindexpath:(nsindexpath *)indexpath {   nsstring *celltext = @"test test test test test test test test test test test";     uifont *cellfont = [uifont fontwithname:@"helvetica neue" size:14.0];     cgsize constraintsize = cgsizemake(255.0f, maxfloat);     cgsize labelsize = [celltext sizewithfont:cellfont constrainedtosize:constraintsize linebreakmode:nslinebreakbywordwrapping];     return labelsize.height + 70; } 

strange returning single line,i tried printing lable frame height correct it's not showing on simulator.

i tried increasing height in xib same code working fine. not sure here what's wrong assigning height label.can 1 please me.

i got resolved simple replacement.may helps others.

cgsize labelsize;     if ([celltext respondstoselector:@selector(sizewithattributes:)])     {         labelsize = [celltext sizewithattributes:@{nsfontattributename:cellfont}];     }else{         labelsize = [celltext sizewithfont:cellfont constrainedtosize:constraintsize linebreakmode:nslinebreakbywordwrapping];     }