android - Call (and get the response for) a USSD Code, in the background? -

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i'm wanting write widget displays users' prepay balance, remaining data etc.

i'm thinking of automatically calling ussd code returns data (will have have regex each network), @ intervals (not often, save battery). have done in background. have app @ moment runs ussd code , returns result, think should possible - i'm not sure how done in background.

i've seen intents calling number, i'm not sure how result, , i'm thinking that intent cause call screen come foreground?

the other option data screen-scraping result carrier's website/maybe wap site result in data charges user, prefer solution using ussd code.

thanks in advance - started working on understanding android today got quite lot learn :)

ussd not yet supported on android. there feature request it: http://code.google.com/p/android/issues/detail?id=1285


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