How to get application usage statistics on android?

What I want is to access the time (in milliseconds) 开发者_JS百科that each application is used.

Thanks

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Dig up the source to "Spare Parts" and see how they do it

(also copy it off the emulator, install it on your phone and make sure it works)

Note: while this remains accurate for the circa-2010 versions of Android about which it was written, restrictions added years later in 4.4 and 5.0 would substantially frustrate achieving this in more recent versions.

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You could use TraceView. Did you mean by programming?

By Programming, You can check out how SpareParts does it.

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@João Lopes,Chris Stratton

Google Provide the sample code for AppUsageStatistics Sample

Here full of statistics base on daily weekly monthly usages.

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Firebase Analytics has a cool feature where it tracks the average time on each screen and the percentage of which screen is used most often.

Is this is good enough for you, I would suggest adding Firebase to your app, as it has a free plan, and it will automatically track your users' time. You can start here

Hope this helps

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you can try to use FireBase Analytics.