I want to update to android gradle plugin 7.0. Is there any way I could test what changes I will be required to do in my project or code? Is there any preview tool in android studio?
CodePudding user response：
If 'preview tool' you saying is about the 
When you select Show Usages button:
And for actual preview purpose, I would back up the project folder (e.g. simply compress to a zip or ideally using a VCS as @MartinZeitler suggests) and then execute update with AGP Upgrade Assistant by submitting Run selected steps button.
If I encounter a problem by upgrade, just delete the project folder and extract from the zip or rollback with VCS.