I am android studio beginner, want to practice my hand after learning, found that the R has been an error, check a lot of information to solve, thank bosses here!

CodePudding user response:

You put the activity_main. XML to stick out

CodePudding user response:

<? The XML version="1.0" encoding="utf-8"?> CodePudding user response:

reference 1st floor HughZhao1780 response:

your activity_main. XML post

Will not put pictures, activity_main XML I also didn't change, is to write a few EditText and Button

CodePudding user response:

You look at

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