同时编写调试和生产代码的最佳做法是什么？

Question

I develop iOS apps and use swift and Xcode now. I often write like this when I use a test code for debug.

//test
label.backgroundColor = UIColor.red
//set bicolor
label.backgroundColor = UIColor.clear

If it's test mode (before release app), I want to set backgroundColor in red. When I submit the app to store, the test code that set backgroundColor to red will be comment out and The backgroundColor will be set clear.

What is the best practice to write the debugging and production code at the same time?. Is the abouve is good practice or not?.

Answer 1

What you can do is use if development

label.backgroundColor = UIColor.clear
#if DEVELOPMENT
label.backgroundColor = UIColor.red
#endif

or

label.backgroundColor = UIColor.red
#if RELEASE
label.background = UIColor.clear
#endif

Answer 2

There are 3 #pragma_mark available in swift same as Objective-C:

1. // MARK: - write your text here

2. // TODO: - write your text here

3. // FIXME: - write your text here

You can use - to add separator line.

Answer 3

Using Swift flags DEBUG and RELEASE, you can separate the code for DEBUG and RELEASE

https://kitefaster.com/2016/01/23/how-to-specify-debug-and-release-flags-in-xcode-with-swift/

Answer 4

In Swift you can use the following code:

#if RELEASE
    // release only code
#else
    // debug only code
#endif

I normally write following method in Android

If you want some line of code for debugging and production, you can do the following,

Create a global boolean value like below in GlobalVariableClass,

public boolean debug=true

Then you can write code like,

if(GlobalVariableClass.debug){
    //debug code
}else{
   //Production code
}

It also helpfull for log data as ,

If(GlobalVariableClass.debug){
   Log.e("TAG","log message");
}

So for the production time, you need to change the debug in GlobalVariableClass to false