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This setting would need to be re-applied every time you reboot your device. Traditionally Xiaomi and their Android customization called MIUI belongs to the most troubled on the market with respect to non-standard background process limitations and non-standard permissions. In default settings background processing simply does not work right and apps using them will break.
So if you like Xiaomi we definitely recommend to look for their Android One offering.
MIUI 10 To let your app run successfully in the background, make sure your settings look like the following here for example is Sleep as Android :. When you open recent apps tray, drag your app downwards — it will be locked. So even if you clear recent apps it will not clear from the background.
Drag downwards again to clear your app from the background. Meizu is probably on par with Huawei and Xiaomi in their approach to background process limitations, but they get a better rank probably just because those devices are not that common on the market and thus do not cause such a pain to the developers as the aforementioned.
We are still collection feedback on Asus device so the following may not be a exhaustive list of issues. On Asus devices there seems to be an optimization app called Power Master pre-installed with some modifications made by default, eg. However, if you know how, you can easily disable these. See the screens below. To make sure apps background processing works please make sure the following is set properly. See below for screenshots. We are still collecting feedback on Wiko devices so the following may not be a exhaustive list of issues.
But Wiko devices are definitely problematic in terms of non-standard background process optimizations and adjustments to the settings that need to be done to make apps work properly. Start Phone assist and tap Tap Power Saver 2. Turn Eco. Mode OFF and tap Optimized mode 3. Disable optimized mode or make sure Your app is not optimized 4. Go to advanced settings 5. Get to the background process whitelist 6.
NOTE : this needs to be done again after reboot. We have currently only information for Oppo F1S, but on other models the situation may well be similar.
Oppo F1S Background services are being killed including accessibility services, which then need re-enabling every time you turn the screen off. So far, a workaround for this is:.
All four of those need to be done before the app would function. Here are links to some other resources verifying that some of the above steps work on other Oppo devices:. It is called Stamina mode and it instantly breaks all background processes and all alarms if enabled. Never use Stamina mode if you want your phone to do something useful when you are not actively using it.
They had the most aggressive app killers preinstalled on their phones. Nokia on Android O and P kills any background process including sleep tracking or any other sport tracking after 20 minutes if the screen is off. Also when killed all alarms are stopped which renders for example any alarm clock apps useless. We have investigated this issue in details. We did even purchase a Nokia 6. The problem only occurs on Nokia devices with Android Pie.
Meizu 15 Review: Anniversary Phone That Bucks Current I haven't experienced any erroneous palm touches—Meizu's software likely has a. Hands on review of the Meizu Pro 6 Plus Android phone By Eileen Brown | February 21, -- GMT ( PST) | Topic: Smartphones. Editors' review.
Nokia started to bundle a toxic app package: com. This app kills apps in the most brutal way we have seen so far among Android vendors. Whitelisting apps from battery optimizations does not help! Evenwell kills even whitelisted apps. What this non-standard app does is every process gets killed after 20 minutes regardless it is actually supposed to be running and doing a useful job for the user.
Also alarms are not triggered. The aim is apparently to save your battery by rendering tracking apps and other apps that use background processing useless.
Moreover even 3rd party user visible alarms alarm clock alarms are not triggering properly on Nokia as foreground services cannot be started from background on Nokia. This is a serious issue unparalleled to any other vendor. We did not yet find a workaround for this :. For fun investigative read about Evenwell, check out Who is Nokia? On Nokia 1 there is an alternative package that works very similar to what the com.
There is no user-facing control, or whitelist; this Mediatek-developed task killer terminates all background apps without prejudice. Additionally, the setting does not survive a reboot. Syncthing-Fork is one app that has taken this approach. Unfortunately, there are some reports that even this fix does not work. From now on, background apps should work normally and use the standard Android battery optimizations. We do not have any solution for this at the moment UPDATE: in our preliminary tests it seems that force stopping or uninstalling the Power saver app also fixes alarms and starting of foreground services, until the Power saver restarts.
And since the task killer is a system service and not an app, it cannot simply be uninstalled. Fortunately, DuraSpeed does have a hidden kill switch: It watches the setting. Once DuraSpeed stops itself, the phone is cured and all background apps will function normally. However, this workaround does not stick across reboots, so the flag has to be cycled at every boot using an automation app like MacroDroid.
First, use adb to grant MacroDroid or your choice of automation app the ability to write to the global settings store:. System Setting: type Global , name setting. Run this task and verify there are no errors. If all is well, then DuraSpeed will be immediately disabled, and it will also be disabled on reboot. So even stock Android may kill your app when doing tasks valuable to the user.
Especially if users enable Background restrictions for a particular app. Moreover, in Android 6. This attempt to unify various battery saving features across the Android ecosystem fell flat. Doze mode made some background processing scenarios impossible on Android or paradoxically more battery consuming e. A serious bug in doze mode in Android 6. If users accidentally enable this option it will break their apps.
And users do enable that option!
If you see background processing issues, overall it is a good idea to make your app not battery optimized to ensure it gets the freedom it needs to perform in the background. The Meizu has a better depth of field than the Redmi less good than the Samsung , a good sharpness and a small lack of color saturation but the rendering is more realistic than the Redmi. I then took pictures in HDR mode on the Meizu and Redmi because they both have the same functionality:.
This feature does not improve the picture, on the contrary, we see that the colors on the Meizu are even more distant from reality, the dark blue of the police car turns cyan.
You will see the result outdoors later in this test. Outdoor photography sun For this outdoor test, I applied the same method as for the studio test, I compared the Meizu with the Redmi under the same conditions. The Redmi has smoothed the contours a little too much and I may have made a movement when taking the picture because usually the Redmi does not show this kind of blur. The sharpness is more balanced on both cameras, the Redmi offers a little more saturation but also smoothes the picture a little more and we lose detail compared to the Meizu. It was windy when I took the pictures, so some trees are blurry because of the movement caused by the wind.
Same observation as for the previous photos, the Redmi loses details because of the smoothing and the Meizu loses a little saturation and offers a colder photo.
For this outdoor and automatic test, I would say that the Meizu produced better pictures than the Redmi. However, I must point out that I used the devices in automatic mode without changing settings, this is an important element because Redmi proposes to adjust the sharpness and saturation so that the problems reported here disappear. The Meizu does not offer this type of adjustment. I advise you to check my Redmi Note 7 test to get another idea of the device.
Anyway, without adjustments, the treatment of the Meizu is better. Night mode in daylight The Meizu Note 9 is equipped with a night mode and this night mode works quite well in daylight too. I took the same picture in automatic mode, in HDR and finally in night mode. Outdoor photography night The Meizu Note 9 has a night mode and I will start by comparing the night mode with the normal mode. Here is a first picture in normal mode. At this shutter speed, the car in the background of the picture is almost frozen and the picture is generally quite sharp.
With ISO the noise should be high but it is barely visible, which means that the phone is processing.