Where is the R.java file in Android Studio?

问题

Where is the R.java file in Android Studio? Can someone please help with this? I already tried google for the answer but can't find any solution.

回答1:

I use Android Studio 3.3.2

\app\build\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\android\support\constraint\R.java

回答2:

I use Android Studio 2.3.3. The R.java file is shown in the picture above.

In the left upper side, there is a select list. Select the [project] option so that you can see all the folders and files.

回答3:

R.java is the generated file by ADT or Android studio. It will be located under app\build\generated\source\r directory.

./app/build/generated/source/r/debug/android/support/v7/appcompat/R.java
./app/build/generated/source/r/debug/your/packagename/name/R.java

回答4:

I am using Android Studio 2.2.3 , the R.java file is shown in the picture below. Goto in the left upper side there is a selecting list ,

1. select [package]
2. Open "App Folder"
3. com.example.saeedanwar.myapplication;
4. r

回答5:

Change a project view from Android to Project or Project Files. Find one of these two files.

Then you can revert back to Android view.

回答6:

Project/app/build/generated/source/r/debug/com.android.'projectname'/R.java

回答7:

It is inside app\build\generated\source\r folder

来源：https://stackoverflow.com/questions/28522144/where-is-the-r-java-file-in-android-studio