ios - Keep UITableView offset when inserting rows at the top with UITableViewAutomaticDimension -

i have uitableview autolayout in app. need insert rows tableview after press loadearlier button index[0],
want stay on last position of tableview.(load earlier whatsapp & ...).

my problem after setting contentoffset posion of tablevoew isn't correct.

i check link problem isn't problem think answer us. uitableviewautomaticdimension - cells move when table reloaded , link : keep uitableview static when inserting rows @ top

i :

// in viewdidload self.mytableview.estimatedrowheight = 100; self.mytableview.rowheight  = uitableviewautomaticdimension;   //implemention of loadealier method cgfloat oldtableviewheight = self.mytableview.contentsize.height;  (int = temp ; < temp +26; i++) {     myobject * tempobject = [[myobject alloc]init];     tempobject.name = [nsstring stringwithformat:@"obj : %d",i];     tempobject.uid = [[nsuuid uuid]uuidstring];     [_dataarray insertobject:tempobject atindex:0]; }  [self.mytableview reloaddata]; cgfloat newtableviewheight = self.mytableview.contentsize.height; self.mytableview.contentoffset = cgpointmake(0, self.mytableview.contentsize.height - oldtableviewheight); 

if remove automaticdimension delegate & .... it's work on static height of cell ,but need automaticdimension calculate height of cell.

update

i can't find solution keep uitableview offset uitableviewautomaticdimension.

i have removed uitableviewautomaticdimension heightforrowatindexpath & estimateforrowatindexpath , keep uitableview :

cgfloat oldtableviewheight = self.tableview.contentsize.height; // keep current content offset revert position after reload table  // update data  [self.tableview reloaddata];  cgfloat finalypostioton = self.tableview.contentsize.height - oldtableviewheight - numberofyoursection * sectionheight;  finalypostioton = finalypostioton - spacefromtopcell; // need showing little of top cell our index. spacefromtopcell -->10  [self.tableview setcontentoffset:cgpointmake(0,finalypostioton)  animated:no];