Why can't this application be deactivated after screen is locked?

Question

I recently installed WhatsApp. I thought it would be clever to deactivate it while my screen is locked to save battery: data can update when I have my screen active.

But it looks there is something special about this application that prevent it from being deactivated.

I often get notifications involving WhatsApp in high consumption while my phone is locked
there is a red message Can't refresh when closed on it's side when I go to "Battery > Close apps after screen lock" ... well, that's pretty much what I would like!

Anyone knows what I can do to avoid this? (apart from uninstalling this tyrannic application)? Is there a feature I'm missing and that I should change?

score 1 · Accepted Answer · edited Apr 13 '17 at 12:18

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WhatsApp employs a mechanism that ensures messages are always notified (as long as data connectivity is present) , which is well explained here How is WhatsApp able to receive messages when not in use?. That's the reason on your device, the red warning is displayed

You can instead Greenify WhatsApp . For details see greenify questions like How does hibernating an app work technically? and XDA - Greenify

Edit Protected apps feature may be used. I am not sure if this feature exists in the emui version you have. What is protected apps in Huawei phones?

edited Apr 13 '17 at 12:18

Community

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answered Mar 03 '17 at 08:29

beeshyams

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Thanks, I can't see greenify wiki (it doesn't look like it exists). – J. Chomel Mar 03 '17 at 09:10
Oops. My bad... That tag doesn't have a wiki but questions in it should help – beeshyams Mar 03 '17 at 09:15
Edited to add XDA link too – beeshyams Mar 03 '17 at 09:20
Added another possibility - see edit – beeshyams Mar 03 '17 at 12:06
I was able to install greenify. However, its not simple to configure, and it appears it caused connection losses to my other applications when network was bad. I finally uninstalled it. – J. Chomel Mar 14 '17 at 15:21
I am surprised to hear that, but yes, it's a powerful app and needs to be understood to prevent such instances – beeshyams Mar 14 '17 at 15:24

score 1 · Answer 2 · answered Mar 14 '17 at 15:35

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My solution was to deactivate unwanted "battery usage notifications" for Whatsapp: it doesn't consume that much after all, compared to other applications.

answered Mar 14 '17 at 15:35

J. Chomel

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Why can't this application be deactivated after screen is locked?

2 Answers2