[APP][OPEN SOURCE][ROOT][5.0+] Night Light (KCAL)

[corphish]

Night light is an open-source app which uses KCAL to adjust blue light intensity of the display colors, so that viewing the screen at dark becomes pleasant for the eyes, and help you fall asleep faster (this is what science have proven so...).

Features

• Easy to use user interface. Settings are easier to find.
• Uses KCAL to adjust screen RGB colors, hence its efficient and changes are seen everywhere on screen.
• Supports older KCAL implementations as well as newer KCAL implementation for v4.4 kernels.
• Simple color controls for normal users through color temperature control.
• Manual KCAL controls for advanced users.
• Automation routines lets you define routines where you specify Night Light settings which you wish to apply, and they will be automatically applied for you in specified times.
• Intensity fading in/out is supported as part of automation routines.
• Supports sunset/sunrise timings.
• Set on boot delay.
• Original KCAL settings of user is backed up and applied when night light is turned off. And it can be configured as well.
• Support for user profiles, which are collections of settings that user can apply with one click.
• And to fulfill your all kinds of automation needs, app is supported as a Tasker plugin. You can use it with Profiles.
• Option to automatically disable Night Light in lock screen, and turn it back on after the device is unlocked.
• Quick Setting tile for easy toggling on/off night light anywhere.
• Launcher icon shortcut for toggling Night Light on/off and toggling intensities.
• Dark and Light theme.

Advantages

• No overlays.
• Background service is only used for lock screen option. The entire automation (including the fading) is done using neat AlarmManager tricks (which not only is battery friendly, but memory friendly as well).

Requirements

• Kernel supporting KCAL.
• Root access.

Download


Source - https://github.com/corphish/NightLight

 

[questionquince]

Wow. Thanks for this awesome app. This is my best daily night light app.

 

[affroukh77]

Thanks

 

[jerrystar]

sounds good

let me have a try brother......

Night light is an open-source app which uses KCAL to adjust blue light intensity of the display colors, so that viewing the screen at dark becomes pleasant for the eyes, and help you fall asleep faster (this is what science have proven so...).

Features

• Easy one touch toggles, with a single slider to tweak blue light intensity.
• Quick Setting tile for easy toggling on/off night light anywhere.
• Automatic switching on/off night light at user specifed timings. (Limitation - Start time must be lesser in value than ending time, that is if you choose starting time at 2300 hrs and ending time at 0600 hrs (next day) it won't work for now).

Requirements

• Kernel supporting KCAL.
• Root access.

Download



Source - https://github.com/corphish/NightLight

 

[yochananmarqos]

The automatic switch doesn't seem to be reliable. Could you add intents so it can be toggled with Tasker? I already have a profile that triggers at sunset so that would be perfect.

Sent from my Nexus 5X using XDA Labs

 

[dreinulldrei]

Great app, thanks. Have been using CF.lumen until now, but that seems unsupported (and is closed source).

Please keep improving it. Would also like to donate a beer.

 

[zaibansari20]

Can you explain whats this KCAL thing ??? ??

 

[Tic0]

thanks for this app apreciate it i got ADD and Slightly Autism and i already have an issue sleeping my brain get supercharged and i can't get to sleep but this app helps [email protected]

 

[rickysidhu_]

Loving the app so far, however, I notice it won't trigger at the time I have set unless I manually open the app. I've removed it from Android's battery optimization so I don't think that can be it. Any ideas?

 

[yochananmarqos]

Loving the app so far, however, I notice it won't trigger at the time I have set unless I manually open the app. I've removed it from Android's battery optimization so I don't think that can be it. Any ideas?

Same here. I forgot to report it. I use Tasker to launch it at sunset & sunrise along with switching between dark / light app themes.

Sent from my Nexus 6P using XDA Labs

 

[rickysidhu_]

Same here. I forgot to report it. I use Tasker to launch it at sunset & sunrise along with switching between dark / light apo themes.

I ended up doing this as well! Now the other thing I'm hoping gets implemented is a smooth transition to the orange hue.

 

[J0kker]

Can you explain whats this KCAL thing ??? [emoji848][emoji848]

Kcal is a kernel tweak that lets you customize colors at lower (kernel) level, so there won't be any filter or layer on screen, but in most stock kernels it isn't available, so you have to find a custom kernel for your phone/rom that has it.

Thanks for the app, but I've used tasker with the command "echo 180 75 35> /sys/devices/platform/kcal_ctrl.0/kcal" for a long time (echo 256 256 256 > /sys/devices/platform/kcal_ctrl.0/kcal to get the color back.)
Obviously you can change the values to whatever you want.

But the app will be much more easy for many people

Envoyé de mon ONEPLUS A5000 en utilisant Tapatalk

 

[zaibansari20]

Kcal is a kernel tweak that lets you customize colors at lower (kernel) level, so there won't be any filter or layer on screen, but in most stock kernels it isn't available, so you have to find a custom kernel for your phone/rom that has it.

I'm using LineageOS with a custom kernel which allows mein to change RGB values from any kernel modification app...


Sent from my LG G2 using XDA Labs

 

[J0kker]

I'm using LineageOS with a custom kernel which allows mein to change RGB values from any kernel modification app...

So it should work for you, you can try with a kernel manager like kernel adiutor but the app should work.

 

[rickysidhu_]

Kcal is a kernel tweak that lets you customize colors at lower (kernel) level, so there won't be any filter or layer on screen, but in most stock kernels it isn't available, so you have to find a custom kernel for your phone/rom that has it.

Thanks for the app, but I've used tasker with the command "echo 180 75 35> /sys/devices/platform/kcal_ctrl.0/kcal" for a long time (echo 256 256 256 > /sys/devices/platform/kcal_ctrl.0/kcal to get the color back.)
Obviously you can change the values to whatever you want.

But the app will be much more easy for many people

Envoyé de mon ONEPLUS A5000 en utilisant Tapatalk

I tried the Tasker method and it works great. I had no idea that command existed and could be used in Tasker. Thank you for sharing! :good: :highfive:

 

[corphish]

Loving the app so far, however, I notice it won't trigger at the time I have set unless I manually open the app. I've removed it from Android's battery optimization so I don't think that can be it. Any ideas?

Does it fail to trigger if a reboot had happened sometime before the time it should have triggered?
For example, if it was to trigger at 5pm, but a device reboot happened in, say, 3pm, then does it fail to trigger at 5pm?

Anyway, set on boot is broken (again), will need to fix it, but normal timers should work fine.

 

[rickysidhu_]

Does it fail to trigger if a reboot had happened sometime before the time it should have triggered?
For example, if it was to trigger at 5pm, but a device reboot happened in, say, 3pm, then does it fail to trigger at 5pm?

Anyway, set on boot is broken (again), will need to fix it, but normal timers should work fine.

Ahh, that might be it. I think it stops working after a reboot, so I'd be going back into the app to get it going again.

Very minor issue though, great app - thank you for your hard work!!:highfive:

 

[jineshpatel30]

Does it fail to trigger if a reboot had happened sometime before the time it should have triggered?
For example, if it was to trigger at 5pm, but a device reboot happened in, say, 3pm, then does it fail to trigger at 5pm?

Anyway, set on boot is broken (again), will need to fix it, but normal timers should work fine.

Launcher shortcut (toggle on/off) switch is also seems somewhat broken, it toggle on but fails to toggle off.

 

[corphish]

@jineshpatel30 @rickysidhu_

Here is an experimental version (in the attachment of this reply), with launcher shortcut toggle and set on boot fixed.
The reason why it is experimental :
- Now written in kotlin
- Uses some of the new stuff announced in I/O 18, like ktx and the new material design style
- Uses different font called 'Acme'. (Feel free to suggest fonts)
- I decided to ditch cards because normal layouts look better in this new style.

Source - https://github.com/corphish/NightLight/tree/p

 

[yochananmarqos]

@[email protected]_

Here is an experimental version (in the attachment of this reply), with launcher shortcut toggle and set on boot fixed.
The reason why it is experimental :
- Now written in kotlin
- Uses some of the new stuff announced in I/O 18, like ktx and the new material design style
- Uses different font called 'Acme'. (Feel free to suggest fonts)
- I decided to ditch cards because normal layouts look better in this new style.

Source - https://github.com/corphish/NightLight/tree/p

It kicked in automagically at sunset tonight which reminded me to come back and comment. That was unreliable previously.

What does the save button do at the bottom? I assume it saves something, but there's no toast message to acknowledge it's been pressed.

I don't like the font, myself. Since you're going for new and fancy code and styling, why not use ProductSans? I like the new font used in the Wear OS app, I think that's it.

Could you add the numerical values for the sliders for more accurate fine tuning? I like the way the new XDA Navigation Gestures app does it. It's in the latest beta posted in the thread and should be pushed to the Play Store soon.

Since CF.lumen is EOL now, this app is going to be a great alternative especially when it eventually breaks.

Thank you!

Sent from my Nexus 6P using XDA Labs