How to run code during the iOS development process specifically during debugging

During the development process, we often use NSLog to track debugging, but the products that are released may not want these debug code to be run. Here's a little tip to share.

You can use the following methods when writing code:

#ifdef debug<

Debug Mode code ...

#else <

Release Mode code ...

#endif

The debug is already defined in the Xcode default project, and you can add other constant definitions based on your actual situation.

In Xcode, select the root node at the top left of the navigation area and select Project/build Settings and enter debug in the search box to see the definition as shown in the following illustration:

If you want to test how the code works in different modes, you can choose Product/scheme/edit Scheme to modify the build configuration, as shown in the following illustration:

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Tip: Release mode is not running on the real machine, you can choose the emulator to run the viewing effect.

You can use this technique when developing IAP applications so that you don't have to change your verification address every time, the sample code is as follows:

Define part of code:

#define ITMS_PROD_VERIFY_RECEIPT_URL @ "Https://buy.itunes.apple.com/verifyReceipt"

#define ITMS_SANDBOX_VERIFY_RECEIPT_URL @ "Https://sandbox.itunes.apple.com/verifyReceipt";