diference between @android:id/* and @+id/*

meganpig

New Member
Today reading a tutorial i see the XML layout and see some elements have a id like\[code\]android:id="@android:id/element_id"\[/code\]others have the regular \[code\]android:id\[/code\]\[code\]android:id="@+id/element_id"\[/code\]What is the difference between these two lines?
 
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