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Editorial Team
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Asked: 2026-05-22T00:33:56+00:00

Hey, I finished my code and everything works as it should but I’m wondering

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Hey, I finished my code and everything works as it should but I’m wondering since smartphones have limited battery, CPU .. How can I check if my application will run good on older phones? and how can I check if my app consumes the phones battery?
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  1. Editorial Team

    The only way to really know it to test the app in the phones.

    That said, you can profile it and make educated guesses based on how CPU-intensive is your app, for how long is it running, if you have services using cpu continuously, etc.

    There are a few things to consider:

    • The main battery drain is the screen. If you keep any kind of screen lock (even dim), it will destroy the battery.
    • Any other lock (wifi, etc.), will induce battery drain. Do you use them? Do you need them? Do you release them as soon as they’re not needed?
    • Do you have hardware listeners (e.g., location, accelerometer), unregister them as soon as they’re not needed

    Take a look at this video: http://www.google.com/events/io/2009/sessions/CodingLifeBatteryLife.html

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