Develop Bugs

Lock screen shortcut

Hey guys...
Just wanted to post this little find. I haven't seen it posted before, so I apologise if I missed that thread...
Try this...
Open an application with the settings button in the bottom corner.
Switch off screen
Switch on screen
Do you have the settings button in the same corner? Press it... screen unlocks
Shortcut or flaw?
Sent from my Galaxy Nexus using Tapatalk

Oh wow, never noticed that before. I can't think of any benefit of it so it likely to be a bug.
Sent from my Galaxy Nexus using XDA App

The online kitchen over at MoDaCo has an option to disable 'menu key unlock'. I'm assuming this is referring to this issue (if it is an issue) but I may be wrong.
http://android.modaco.com/topic/348...the-samsung-galaxy-nexus-with-online-kitchen/
Sent from my Galaxy Nexus using XDA App

don't get this option. is it something to turn on in Settings?

Did you also notice that you can access the notification bar from the lock screen?
Can't be a feature, surely?

Neville.Holland said:
Did you also notice that you can access the notification bar from the lock screen?
Can't be a feature, surely?
Click to expand...
Click to collapse
That is actually a feature. Quite useful if you don't have a pattern/pin/face lock setup.

Neville.Holland said:
Did you also notice that you can access the notification bar from the lock screen?
Can't be a feature, surely?
Click to expand...
Click to collapse
it is most definitely a feature, and was demoed at the first unveiling of the phone back in October.

Ahhhh... so it doesn't work if there is security lock on... I get it.. ty
Sent from my Galaxy Nexus using Tapatalk

Actually neither does the originally noted shortcut work when the pin is on
Sent from my Galaxy Nexus using Tapatalk

Can someone explain what the purpose of the settings button is in this context? Is it just another way to unlock the screen? Why does it only appear in the given scenario?
Also, why do the back and home buttons appear when you drag down the notifications bar?
They do not appear to be functional, but can be pressed. I suppose the back button makes sense, as it dismisses the notification panel, but the home button does not appear to be functional.

I opened facebook, the menu button was there. I turned off screen, then turned it back on. the menu button was there on my lock screen but when I pushed it, nothing happened. phone did not unlock. I use pattern unlock.

grt3 said:
Can someone explain what the purpose of the settings button is in this context? Is it just another way to unlock the screen? Why does it only appear in the given scenario?
Also, why do the back and home buttons appear when you drag down the notifications bar?
They do not appear to be functional, but can be pressed. I suppose the back button makes sense, as it dismisses the notification panel, but the home button does not appear to be functional.
Click to expand...
Click to collapse
More than likely, the menu button being on the lock screen is just a glitch that really shouldn't be there. The good news is that if you have a lock other than the slide lock (Pattern, Password, Pin, Face) the the menu button on screen does nothing.

It's already been reported to google as a bug. It only happens if you have an insecure lock method (swipe, or none).

How does knock on feature works with apps which require double taps?

Hello,
Wondering if I use a game and need to tap 2 times quickly on screen during the game, will phone switch off?

artisticcheese said:
Hello,
Wondering if I use a game and need to tap 2 times quickly on screen during the game, will phone switch off?
Click to expand...
Click to collapse
Ive just tried it on song pop and it doesnt turn the screen off....I believe it needs to be on a blank part of the homescreen or on the notification bar area at the top of the screen

Do you have clash of clans game? Can you try to double click inside it?
Sent from my Nexus 7 using Tapatalk

Knock off only works on the home screen (and the status bar). It would be quite silly otherwise since you wouldn't be able to double tap to zoom etc.

dhkx said:
Knock off only works on the home screen (and the status bar). It would be quite silly otherwise since you wouldn't be able to double tap to zoom etc.
Click to expand...
Click to collapse
I can also see it turning the screen off when using your keyboard lol. It definitely sounds like a nice feature - especially considering the buttons are on the back. It would be annoying to have to pick your phone up off of a table or desk to turn the screen on sometimes.

[Q] Double tap to lock screen inside apps.

Hey there. I was wondering if it's possible to double tap to lock screen inside apps? For instance - I'm in a gallery and when I double tap it locks the screen.
The double tap lock screen function works fine when you're on the home screen, but not in any app.

Not that I know of since with Android, the app (activity) that has the focus on the screen accepts all the taps.
You could try swiping down near where the status bar would be to make it appear and then double tap that. That's how I get it to work with Nova launcher. Well, I don't have to swipe down since the status bar is there. I just double tap the status bar to turn off the phone.
I use knock to turn on the phone.

Use it with Nova as well.
Sent from my LG-D850 using Tapatalk

iBolski said:
Not that I know of since with Android, the app (activity) that has the focus on the screen accepts all the taps.
You could try swiping down near where the status bar would be to make it appear and then double tap that. That's how I get it to work with Nova launcher. Well, I don't have to swipe down since the status bar is there. I just double tap the status bar to turn off the phone.
I use knock to turn on the phone.
Click to expand...
Click to collapse
Didn't even thought about it, I'll stick to this method for now. Thanks

Danielsbee said:
Didn't even thought about it, I'll stick to this method for now. Thanks
Click to expand...
Click to collapse
There's also a reason they don't have this feature added. What if you were trying to play a game and everytime you tapped the screen too quickly it turned off? Or you were going through some menu fast enough that it registered you tapping two different options as a double-tap. There would have to be some sort of per-app filter like the stock rom has for hiding the nav buttons in certain apps. Not saying this idea couldn't work, because if you or someone else ever gets it working I'd be glad to use it!

acparker18 said:
There's also a reason they don't have this feature added. What if you were trying to play a game and everytime you tapped the screen too quickly it turned off? Or you were going through some menu fast enough that it registered you tapping two different options as a double-tap. There would have to be some sort of per-app filter like the stock rom has for hiding the nav buttons in certain apps. Not saying this idea couldn't work, because if you or someone else ever gets it working I'd be glad to use it!
Click to expand...
Click to collapse
That's true, but I was asking the question because when my phone is flat on the table or something with gallery opened, it's uncomfortable to slide your finder to the back of the phone to lock the screen so I wanted to know if there's a chance to lock it with tapping. But when I'm playing games, it's different story - I already have my fingers on the back of the case so it's no longer uncomfortable to lock it.

Danielsbee said:
That's true, but I was asking the question because when my phone is flat on the table or something with gallery opened, it's uncomfortable to slide your finder to the back of the phone to lock the screen so I wanted to know if there's a chance to lock it with tapping. But when I'm playing games, it's different story - I already have my fingers on the back of the case so it's no longer uncomfortable to lock it.
Click to expand...
Click to collapse
That's where I'd say swipe down to show the notif bar and then double tap the notif bar. That's what I do so I don't have to pick up the phone to turn off the screen. Then, using a knock pattern, I can turn on and unlock the phone via the knock pattern. Don't have to double tap the phone to wake it up and then unlock it (either via pattern or pin). Instead, with knock, just knock the pattern and it turns on and unlocks all at once. Love it!

iBolski said:
That's where I'd say swipe down to show the notif bar and then double tap the notif bar. That's what I do so I don't have to pick up the phone to turn off the screen. Then, using a knock pattern, I can turn on and unlock the phone via the knock pattern. Don't have to double tap the phone to wake it up and then unlock it (either via pattern or pin). Instead, with knock, just knock the pattern and it turns on and unlocks all at once. Love it!
Click to expand...
Click to collapse
Yeah. Like I said previously, I'll be using this method

If you use Xposed and G3 tweakbox, there is an option to double tap the nav bar to lock the screen as well.
This will give you a place at the top and bottom of the display to lock the screen when in an app (or using a launcher replacement).

Artimis said:
If you use Xposed and G3 tweakbox, there is an option to double tap the nav bar to lock the screen as well.
This will give you a place at the top and bottom of the display to lock the screen when in an app (or using a launcher replacement).
Click to expand...
Click to collapse
I don't see why to use that option to 'enable' it when it is already enabled and working in default.

Danielsbee said:
I don't see why to use that option to 'enable' it when it is already enabled and working in default.
Click to expand...
Click to collapse
By default it works on the status bar (top of the screen). The option in G3 tweaksbox allows it to work on the Nav bar (bottom of screen) as well which is not enabled by default.

Artimis said:
By default it works on the status bar (top of the screen). The option in G3 tweaksbox allows it to work on the Nav bar (bottom of screen) as well which is not enabled by default.
Click to expand...
Click to collapse
Oh then it's a nice option to enable then.
I got confused about the nav bar, I thought it was the status bar.
But the tweaksbox requires root which I don't want to do :s.

You don't need to pull down the notification bar at all to double tap to turn the screen off.
You just double tap the very top of the screen where your notification bar would be.

Double tap and lift not working

OK, what am I doing wrong? I had this feature on the g4. I updated to 7.1.1 and the settings are on in moves. I have a notification but double tapping the screen when it is off doesn't do anything.

larsdennert said:
OK, what am I doing wrong? I had this feature on the g4. I updated to 7.1.1 and the settings are on in moves. I have a notification but double tapping the screen when it is off doesn't do anything.
Click to expand...
Click to collapse
Do you have lockscreen activated?

Lol crap. Set at a half hour before it locks. I guess double tap only works if the screen is locked. On the lg g4 you could use it any time to turn on the phone

Bug with fingerprint combined with double press for camera

Hey, I've found about a bug on our cute little phone. If you did already setup the fingerprint and you have enabled double tap to jump to camera you'll have this bug, at least I have. While the screen is off, if you jump to camera with double tap option on power button and immediately place your scanned finger on scanner you will darken your screen except in nav. bar in status bar, the screen is not interactive at all except upper and lower part of screen. If you lock and unlock your phone, it's back to normal, or sometimes it would fix it if you would just lower the status bar. Am I the only one who has this bug, or is there somebody else as well?

I don't have it. Feb update Pie.
Sent from my Mi A2 Lite using Tapatalk

Yup, I tried it with the latest update (March) and indeed it happens what you say. It's not a very important bug since you need to be pretty fast and can get solved just by locking and unlocking again but it's there.

bookerds said:
Hey, I've found about a bug on our cute little phone. If you did already setup the fingerprint and you have enabled double tap to jump to camera you'll have this bug, at least I have. While the screen is off, if you jump to camera with double tap option on power button and immediately place your scanned finger on scanner you will darken your screen except in nav. bar in status bar, the screen is not interactive at all except upper and lower part of screen. If you lock and unlock your phone, it's back to normal, or sometimes it would fix it if you would just lower the status bar. Am I the only one who has this bug, or is there somebody else as well?
Click to expand...
Click to collapse
Good find...I just try it and it happened to me just like you.