Two Activiry, A1 and A2, respectively, briefly write start A1 A2, and process the data returned by the whole process of A2

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First: rewrite onActivityResult method in A1 and A2 returned when using the inten and setResult method returns data
The second: A2 hair carry data broadcasting, A1 listening radio
The third: the data of global storage A2, A1 onresume method in processing