Force an android phone to sleep, in order to test?

Question

I'm writing an android application that depends on network activity and the alarm manager sometimes waking the phone up from a sleeping state.

My question is how can I reliably test this on device? Ideally, how can I force the phone into a full-on sleeping state. Failing that, how can I know for sure when the phone has fully gone to sleep?

How do you test your Alarm Manager / Wake Lock / Sleep handling code?

Answer 1

Turn off the screen of the device/emulator and then run the following commands:

adb shell dumpsys battery unplug adb shell dumpsys deviceidle step 

Re-run the second one until you get the message "IDLE". This works on devices running Android 6.0 or newer.

Answer 2

Step 1

a. Put the device to "discharging" in settings (follow instructions in the red boxes).

b. Turn off the device screen by pressing the "power" button (blue box).

Step 2

a. To directly put the device to sleep mode, run:

adb shell dumpsys deviceidle force-idle

b. Or slowly step into sleep mode, run:

adb shell dumpsys deviceidle step multiple times.

Step 3

To confirm device idle status, run:

adb shell dumpsys deviceidle get deep