1.KeyBoard Appear with textfield
http://stackoverflow.com/questions/1247113/iphone-keyboard-covers-uitextfield
2.Search Text in Search bar
http://stackoverflow.com/questions/14860620/searching-a-table-view-with-uisearchbar
http://stackoverflow.com/questions/1247113/iphone-keyboard-covers-uitextfield
2.Search Text in Search bar
http://stackoverflow.com/questions/14860620/searching-a-table-view-with-uisearchbar
