mkmapview - Fluctuation in iPhone Screen when trying to open mapview -


i have app has functionality such when button pressed, alert view pops asking login credentials. when submitted, web called returns latitude , longitude plotted on mapview. in case lat , long not available, user sees alert. till stage goes well. when press cancel button on second alert iphone screen fluctuates. after whenever navigate other page, screen fluctuates. when sent background , brought foreground again, starts working fine. can problem?


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