how start up other apps and help to fill the data on android -

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i want develop app users start other apps needs username , password,so must start other apps , fill username , password login userface of apps, example,i want start app helps user login facebook , fill username , password in login userface of facebook app in app,now konw name of facebookapp, 1.how start in app?(i don't know package name of app started up) 2.when have started app,how automatically fill username , password?

you don't.

afaik, example htc's "sense", facebook credentials stored sync account in accounts api.

since think not encouraged override common android use cases, have find out accounts storing.

for this, try find out how android.accounts working. samplesyncadapter deluivered sdk dev sample applications place start.


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