Lollipop isPowerSaveMode always returns false

问题

I am trying to know if the PowerSaveMode is activated or not. I am using this code:

    PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
    return pm.isPowerSaveMode();

But it always returns FALSE. I have only tried with a Samsung Galaxy S4 with 5.0.1 because is the only Lollipop device I have around. Any tips?

回答1:

I found out that Samsung works in a different way. Like always Android loves to be tricky.

bActivated = Settings.System.getString(context.getContentResolver(), "psm_switch").equals("1");

I also read that for HTC has to be this way:

bActivated = Settings.System.getString(context.getContentResolver(), "user_powersaver_enable").equals("1");

来源：https://stackoverflow.com/questions/35634961/lollipop-ispowersavemode-always-returns-false