R cannot be resolved to a variable

by

1) see if the xml files in the Package Explorer tree have an error-icon
if they do, fix errors and R-class will be generated.

example hint: FILL_PARENT was renamed MATCH_PARENT in API Level 8; so if you’re targeting platform 2.1 (api 7), change all occurences back to “fill_parent”

2) if you added “import android.R;” trying to do a quick-fix, remove that line

More Related Contents:

  1. Issue : Passing ArrayList between intents loses data [duplicate]
  2. How to check if activity is in foreground or in visible background?
  3. How to get return value from javascript in WebView of Android?
  4. Android turn On/Off WiFi HotSpot programmatically
  5. Android: Binding data from a database to a CheckBox in a ListView?
  6. How to call a local web service from an Android mobile application
  7. Is there any way in Android to force open a link to open in Chrome?
  8. Android Battery in SDK
  9. InflateException with FloatingActionButton from Official Design Library
  10. How to capture image from custom CameraView in Android?
  11. Display a part of the webpage on the webview android
  12. custom font in android ListView
  13. Android – Way to appear bordered text on the TextView?
  14. Multiple dex files define Lcom/google/android/gms/internal/zzau
  15. Take a screenshot using MediaProjection
  16. Android – How to display a dialog over a native screen?
  17. can we get chrome browsing history/bookmarks in our android app
  18. Setting Android Theme background color
  19. App crash after activity has been killed in background
  20. How to add rows dynamically into table layout
  21. Redirect users to iTunes app store or google play store?
  22. Android foreground service notification not showing
  23. Changing values from Cursor using SimpleCursorAdapter
  24. issue with “@id” vs “@+id” in positioning in Relative Layout
  25. How to use StartActivityForResult()
  26. Seekbar for two values [-50, 0, 50]
  27. How to implement a ViewPager with BottomNavigationView using new Navigation Architecture Component?
  28. Making SSLEngine use TLSv1.2 on Android (4.4.2)?
  29. How to get a contact’s facebook id or url from native contacts / content resolver?
  30. Android Application APK signing?

Leave a Comment