I have been using Android Studio in Spanish, and it bothers me that it highlights as incorrect words which are spelt correctly.
Can I add a Spanish dictionary to Android
Its Very Easy
Step 1: Go to File -> Settings -> Editor -> Spelling
Step 2: In Spelling -> select Tab 'Dictionaries'
Step 3: Click on '+'
Step 4: Select File that You want to put(file must be .dic extension)
Remember by default English language dictionary comes.
RESTART Android Studio is necessary.