IOS other-how to get apps to support 32-bit and 64-bit

Get apps to support 32-bit and 64-bit basic steps

1. Make sure that the Xcode version number >=5.0.1

2. Update project settings, minimum deployment target >= 5.1.1

3. Change architectures to standard architectures (include 64-bit)

4. Run the test code, resolve the compilation warnings and errors, and make changes to the appropriate location against this document or the Official document 64-bit Transition Guide for Cocoa touch. (The compiler can't tell us everything)

5. Test on the real 64-bit machine.

6. Use instruments to view memory usage issues.

IOS other-how to get apps to support 32-bit and 64-bit