android - How to handle only one instance of Activity launched from URL -

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my app started customized url schema, built in intent filter documentation datascheme = "mobilepos", datahost = "payment".

app starts correctly , receives data url, in cases (example if press button) when go url, android creates new instance of activity.

which best way use launch mode (standard/singletop/singletask/singletask) have every time 1 instance of activity?

update workaround set launchmode = singletask , overriding onbackpressed call movetasktoback(true). way back/home button pressed sets app in background , oncreate never called when app relaunched.


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