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While developing apps in Xcode memory leaks are occurring. When I checked them in extended detail view they are showing different methods that are not related to implemented. How to exactly find out which object is leaking and where it is leaking memory.
When ARC is enabled we have to take care of memory leaks or not?
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To detect memory leaks you should run the app and navigate through all possible flows and open several times the same view controllers, then enter memory graph debugger and look at the memory heap. Look for objects that shouldn't be in memory, for example: A view controller that is no longer present in the app.
Where are memory leaks found? Explanation: Memory leaks happen when your code needs to consume memory in your application, which should be released after a given task is completed but isn't. Memory leaks occur when we are developing client-side reusable scripting objects.
Diagnose the Memory Leak Now, it's time to open the leaks instrument: Choose “Xcode” in the top left of the screen. Expand “Open Developer Tool,” and select “Instruments” Now choose “Leaks,” and make sure you have chosen your target app and device at the top (“Choose a profiling template for…”):
Even with ARC memory leaks can occur, it just inserts release and autorelease during compile time.
1. You must check for leaks using Build and analyze in XCode, shift+command+b you should be clearing those issues.
2. After that you can start using the instruments by using profile option command+i . This will point you to where the leak might be.
This link will help you too http://soulwithmobiletechnology.blogspot.in/2011/04/how-to-check-memory-leaks-in-xcode-4.html
Edit: Added some screenshots to hopefully make it clear.
During profiling after selecting leaks choose the call tree option and check the boxes hide system libraries , invert call tree and show obj-c only as shown in image below.
After double clicking the symbol name below you'll get the line where it is leaking.
You'll get something like this.
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