Difference between “@id/” and “@+id/” in Android
问题 What is the diffirence between the @id/ and @+id/ ? In @+id/ the plus symbol + instructs to create a new resource name and add in to the R.java file but what about @id/ ? From the documentation of ID: when referencing an Android resource ID , you do not need the plus symbol, but must add the android package namespace, like so: android:id=\"@android:id/list\" But in the image below Eclipse doesn\'t suggest any kind of @android:id/ . Are @id/ and @android:id/ the same? 回答1: you refer to Android