você criou algum Construtor dentro da MainActivity ?
Em que momento está "estourando" esse erro para você ?
2016-07-20 15:33 GMT-03:00 Arthur Ruppenthal <arthur.ruppenthal@gmail.com>:
Pessoal.--Estou tendo o errojava.lang.NullPointerException: Attempt to invoke virtual method on a null object reference
Isso porque minha context está null, mas se a crio desde a MainActivity recebo o erro que preciso ter um construtor com 0 argumentos.
"MainActivity has no zero argument constructor"Agradeço desde já!Att,
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