Android application installation covering issues

            


I developed two applications A and B, first installed A, then install B, but the installation A B will overwrite, how is this going? When the application is derived from the development environment you can not use the same keys?
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Before I encountered the same problem, just started not know why, but later found the two programs launcher activity package names and class names are the same, I changed one after it will not be covered! The landlord can refer to, perhaps for this reason
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Just find the problem himself, is in the new AndroidProject the same PackageName set up.
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Different app package name must be different, otherwise it will be treated as the same app, is recommended when naming the package name with the app is short, so you can distinguish between different app
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Landlord hard, benefit
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Useful, thank you above floor