Whenever I load my application to my iPhone it works just fine, but when I kill it(double tap the home button and kill it) and launch it again it freezes and crashes. I am quite new to programming so what should I do? Do I have to do something in the appdelegate file or what?
if you manually killed your APP on your iphone while you are debugging using xcode ,
your APP will receive a signal(maybe SIGKILL , not sure) ,
as you are in debug mode , xcode can show you that, it's normal & don't have to do anything
if your APP is running in normal mode, then you killed it , your APP will just exit & relaunch again next you run it