how to know if app was re-installed on Android

[franki]

HI,

first off all, sorry for the delay.

Maybe I wasn't accurate enough.
It doesn't matter if data of my application exists or not.
I need to connect to server during first-time installation as well as during re-installation, so checking if data exists is not an option.
Any other ideas?

Marek

[watsonjhon]

From my point of view :-

1 - If the application is already installed in the device the application is open automatically.

2 - Otherwise install the particular application.