java - Is there a way to find out how long an app is installed? -



java - Is there a way to find out how long an app is installed? -

i find out how long app installed on device.

the reason : announce new update app users have installed app longtime ago , want prevent announce users, have installed app. hate myself advertising in apps :-) want discreet , show proclamation users have installed app longtime ago. (sorry bad english)

what not want utilize following, because allow me observe newer version, implemented it: - using google analytics. - counter counts appstarts in property

i looking solution implement in 2014 , detects app installed since 2013.

any hints ?

the easiest way moving forwards pair of sharedpreferences:

sharedpreferences prefs = preferencemanager.getdefaultsharedpreferences(new context()); boolean firstrun = prefs.getboolean("is_first_run", true); long = system.currenttimemillis(); if (firstrun) { sharedpreferences.editor editor = prefs.edit(); editor.putboolean("is_first_run", false); editor.putlong("first_run_millis", now); editor.apply(); } else { long datefirstrun = prefs.getlong("first_run_millis", 0l); if (datefirstrun == 0l) { // no value saved. decide how want handle } else if (now - datefirstrun < some_age) { // offer functionality } }

if want check past installs think have play packagemanager

edit: richard suggests in comments above:

try { long firstinstall = context.getpackagemanager().getpackageinfo("package.name", 0).firstinstalltime; } grab (packagemanager.namenotfoundexception e) { e.printstacktrace(); }

java android apk

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