Why do we use @ and + symbol for creating id of a widget in Android? -


what exact meaning of using @ , + symbol?

the at-symbol (@) @ beginning of string indicates xml parser should parse , expand rest of id string , identify id resource. plus-symbol (+) means new resource name must created , added our resources (in r.java file)

source: http://developer.android.com/guide/topics/ui/declaring-layout.html#id


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