Find Callers of methods or variables in Xcode
Table of Contents
What is Caller
Callers or Call Hierarchy shows you all the places (files and line of codes) where a method, function, or variable is used.
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How to Find Caller of Call Hierarchy in Xcode
There are several ways to find callers in Xcode. I will give you three ways to do it.
Command + Click
You can find callers via a context menu.
To do that.
- Command + Click (or Command + Control + Click) on a method, function, or variable name will open up the actions menu that you can do on that object.
- Select "Callers", and Xcode will show all the places that the variable is used.
Related Items
You can also find callers in the Related Items.
To find the callers.
- Move the cursor to a method or a variable that you want to find the callers.
- Then Click on the "Navigation to Related Items" button or
Press ⌃ – control + 1 or
Select View menu > Editor > Show Related Items. - All callers will show under the Callers menu item.
Search Interface
You can also find the callers via the search interface.
To do that.
- Move the cursor to a method or a variable that you want to find the callers.
- Press ⌃ – control + ⇧ - shift + ⌘ - command + H.
- All the places that the method or variable is called will show up in the Find Navigator panel.
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What is the benefit of Call Hierarchy
Knowing the number of callers gives you a rough idea of the dependency you have around a method or variable, which is useful when you are about to make changes.
An ability to show all the places that call a method is also valuable when debugging. You can ensure all the call sites are fixed along with the broken ones.
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