What are “strong” and “weak” references? Why are they important and how can they be used to help control memory management and avoid memory leaks?
417What is the difference between atomic and non-atomic properties? Which is the default for synthesized properties? When would you use one over the other?
412
Difference in classes and structures in swift?
what are functions different from methods?
What are application widgets in android?
What do adt stands for?
How to delete images in ios?
How do you pass the data to sub-activities android?
What is android 6 called?
Explain some common features of protocols & superclasses.
Why we use delegate in ios?
How was android os created?
What is an application resource file?
Why swift is safe?
How do I upgrade my os?
What is thread in ios swift?
What is a buildtype in gradle?