Android developer moving to iOS - What do I need to know?
I'm interested in s开发者_StackOverflow中文版tarting developing on the iOS platform, after a couple of years of Android work. What are the main things that are likely to trip me up when designing/coding for iOS instead of Android?
I have done some iphone
apps after doing Android.
- Objective-c is just another language; not at all hard to learn.
- Understand how iPhone memory works. How the ref count and
AutoreleasePool
s stack works. This should be the most important thing to learn. - You will love the interface builder. Creating a new screen for the iPhone is much easier.
- iPhone's version of the Android
ListView
is called aTableView
. More or less the same but you need to define an amount of sections. - I love how iPhone devs use the Delegate pattern, I am using it in Android now. Pay attention to that.
- Resources can have their own folders. For example: A drawable can be in
/car/model/drawable
- Adding animation to iphone objects is VERY easy. You will notice that a lot of methods have a last parameter with
BOOL animated
. - Creating custom components is easier.
Things that made me lose a lot of time:
- You can send msgs to
NIL
. - Logs are not as friendly as Android's.
- You need to add every file to the project. It's not just putting it in the correct place.
- Updates to the env means downloading 2GB every time.
- When printing logs with
NSLog
,NSString
needs to use%@
not%s
. - Xcode has some strange behavior. The cursor moves around your screen.
- Merging commits in iPhone source is hard. The project file and the xibs always get conflicts.
I just want to say that Dont use Interface Builder, Try to make application through coding with this you will easily catch the building process for IPhone program.
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