Go Back   Android Forums > Android Discussion > Android Applications
Android Applications All the information you could ever want about Android Applications. Learn about apps and get help with them... all here! New apps can be found and announced in the Applications Announcements forum linked below.

Get excited for the Samsung Galaxy S5! Find everything you need and discuss it in our Galaxy S5 Forum!

test: Reply
 
LinkBack Thread Tools
Old August 30th, 2011, 02:04 AM   #1 (permalink)
New Member
Thread Author (OP)
 
Join Date: Aug 2011
Posts: 2
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default app to wake?

hi all! new here, i am currently looking for an app that enables me to touch screen to wake the phone instead of pressing home button. using Samsung galaxy S currently. thanks in advance! tried to find but all i found is they only unlock the device but i still got to click home button.

abidein is offline  
Reply With Quote
sponsored links
Old August 30th, 2011, 07:20 AM   #2 (permalink)
Member
 
Join Date: Jun 2011
Location: Lancashire, England
Gender: Male
Posts: 129
 
Device(s): Samsung Galaxy S3
Carrier: Not Provided

Thanks: 53
Thanked 15 Times in 13 Posts
Default

Quote:
Originally Posted by abidein View Post
hi all! new here, i am currently looking for an app that enables me to touch screen to wake the phone instead of pressing home button. using Samsung galaxy S currently. thanks in advance! tried to find but all i found is they only unlock the device but i still got to click home button.
With the battery life as it is on these devices I would think the last thing that anyone wants is an app that will turn on the screen with the slightest accidental pressure.

Possibly you keep it in a hard case where this isn't possible but, if not, I'd be tempted to stick with what you have. Is it so hard or time-consuming to press a button?
Motorhomer is online now  
Reply With Quote
Old August 30th, 2011, 12:34 PM   #3 (permalink)
Killer Psychologist
 
chanchan05's Avatar
 
Join Date: Jun 2011
Gender: Male
Posts: 10,777
 
Device(s): Samsung Galaxy SL (I9003), Samsung Galaxy Tab 7.0 Plus (P6200), Samsung Galaxy SIII mini (i8190)
Carrier: Not Provided

Thanks: 140
Thanked 2,335 Times in 1,939 Posts
Default

I dont think its possible on a capacitive screen to wake it up using a touch of the screen, unlike how resistive screens (like on an N97 or 5800) can do it. Basically its a difference of technologies.

1. Capacitive screens respond to your touches due to a distortion on the electromagnetic field of the screen, because the skin is also electrically conductive. This is also why normal styluses or fingernails dont work on capacitive screens (technically a sausage could work as a stylus though )

2. When a capacitive screen is off, usually the phone turns off the current to the conductive surface as well to save battery, thus there is no electrical current on the screen when it is asleep. There will be no electrical field to distort by your finger, thus the screen cant be woken up by pressing it.

3. Resisitive screens are able to do this because of the difference in technology. There is no electrical field in resisitive screens, only two layers of electrical conductors. When you press down on a part of the screen, it caused these two layers to meet, and the point where those two layers meet is registered as your touch. Hence it basically acts just like a normal keypad. The lockscreen switch is simply the on and off switch of these two conductor layers.


Basically, what you are asking from your phone is to basically not turn the screen off at all, which I would advice against.
__________________
https://shared.com?ref=51950 100GB free storage. WOW.

Worried about your health? Take the True Health Assessment now! Click HERE
chanchan05 is online now  
Reply With Quote
The Following User Says Thank You to chanchan05 For This Useful Post:
amlothi (September 1st, 2011)
Old August 30th, 2011, 12:51 PM   #4 (permalink)
Senior Member
 
Stuntman's Avatar
 
Join Date: Nov 2010
Location: Vancouver, Canada
Posts: 3,002
 
Device(s): Samsung Galaxy S3, HTC Desire Z, Asus Eee Pad Transformer with Keyboard Dock, Nokia N97
Carrier: Bell

Thanks: 206
Thanked 571 Times in 449 Posts
Default

The Nokia N9 has no buttons and is awaken by tapping the touch screen. I would imagine that if you can do it on the N9, you can do it on any phone with a capacitive touch screen.
__________________
<\
\>tuntman
Stuntman is online now  
Reply With Quote
Old August 30th, 2011, 08:07 PM   #5 (permalink)
Killer Psychologist
 
chanchan05's Avatar
 
Join Date: Jun 2011
Gender: Male
Posts: 10,777
 
Device(s): Samsung Galaxy SL (I9003), Samsung Galaxy Tab 7.0 Plus (P6200), Samsung Galaxy SIII mini (i8190)
Carrier: Not Provided

Thanks: 140
Thanked 2,335 Times in 1,939 Posts
Default

It would probably depend on how they implemented the screen. And AFAIK the N9 has a lock button. Could you link me to a video where they woke the N9 with a screen tap? And what I mean by fully wake up is that the screen does not show anything and is actually asleep.

If you are talking about this video or something similar:
http://www.youtube.com/watch?v=BSZssHGR-Qg

The screen is still active in that "wake up" demo, most obviously so since its displaying something (clock screen saver). I was thinking along the lines of the screen actually being turned off and dark.
chanchan05 is online now  
Last edited by chanchan05; August 30th, 2011 at 08:10 PM.
Reply With Quote
Old August 31st, 2011, 09:40 PM   #6 (permalink)
New Member
Thread Author (OP)
 
Join Date: Aug 2011
Posts: 2
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default

thanks chan chan and those who helped yes its something like that in the video. i used iphone before this. and i disable auto lock. so the screen will be closed but i just gonna touch the screen to use it (instead of button) and i wanna use home button as little as possible.
abidein is offline  
Reply With Quote
Old August 31st, 2011, 10:44 PM   #7 (permalink)
Senior Member
 
Stuntman's Avatar
 
Join Date: Nov 2010
Location: Vancouver, Canada
Posts: 3,002
 
Device(s): Samsung Galaxy S3, HTC Desire Z, Asus Eee Pad Transformer with Keyboard Dock, Nokia N97
Carrier: Bell

Thanks: 206
Thanked 571 Times in 449 Posts
Default

Quote:
Originally Posted by chanchan05 View Post
It would probably depend on how they implemented the screen. And AFAIK the N9 has a lock button. Could you link me to a video where they woke the N9 with a screen tap? And what I mean by fully wake up is that the screen does not show anything and is actually asleep.

If you are talking about this video or something similar:
Nokia N9 UI hands-on demo - YouTube

The screen is still active in that "wake up" demo, most obviously so since its displaying something (clock screen saver). I was thinking along the lines of the screen actually being turned off and dark.
Here's a video showing the phone fully in sleep mode and double tapping to wake:

Nokia N9/N950 Unique Feature: Double-Tap wakeup - YouTube
Stuntman is online now  
Reply With Quote
Old August 31st, 2011, 11:13 PM   #8 (permalink)
New Member
 
Join Date: Aug 2011
Posts: 1
 
Device(s):
Carrier: Not Provided

Thanks: 0
Thanked 0 Times in 0 Posts
Default

I would imagine that if you can do it on the N9, you can do it on any phone with a capacitive touch screen.
yanmoyiie is offline  
Reply With Quote
Old September 1st, 2011, 12:19 AM   #9 (permalink)
Killer Psychologist
 
chanchan05's Avatar
 
Join Date: Jun 2011
Gender: Male
Posts: 10,777
 
Device(s): Samsung Galaxy SL (I9003), Samsung Galaxy Tab 7.0 Plus (P6200), Samsung Galaxy SIII mini (i8190)
Carrier: Not Provided

Thanks: 140
Thanked 2,335 Times in 1,939 Posts
Default

It says unique feature, and without the knowledge of how exactly they did it, it may be hardware dependent, like a special layer on the capacitive screen that detects physical touches while the screen is off. As I said, capacitive screens work by detecting a magnetic field disturbance to register as your touch. I certainly wont want my screen to be forever running just so I can wake it using a screen tap, that would kill the battery.
chanchan05 is online now  
Reply With Quote
Old September 1st, 2011, 12:48 PM   #10 (permalink)
Senior Member
 
Stuntman's Avatar
 
Join Date: Nov 2010
Location: Vancouver, Canada
Posts: 3,002
 
Device(s): Samsung Galaxy S3, HTC Desire Z, Asus Eee Pad Transformer with Keyboard Dock, Nokia N97
Carrier: Bell

Thanks: 206
Thanked 571 Times in 449 Posts
Default

Quote:
Originally Posted by chanchan05 View Post
It says unique feature, and without the knowledge of how exactly they did it, it may be hardware dependent, like a special layer on the capacitive screen that detects physical touches while the screen is off. As I said, capacitive screens work by detecting a magnetic field disturbance to register as your touch. I certainly wont want my screen to be forever running just so I can wake it using a screen tap, that would kill the battery.
That would be my concern as well. I'm aware that capacitive screens need power to detect touches. I'm not sure how much or little power capacitive screens need. Certainly when the phone is asleep, it's antenna is still active and that uses a bit of power. Overall, I find that the screen when turned on tends to use the most amount of power on my phone according to the battery meter. What it does not show is how much of this power is due to actually displaying images and how much is to detect touches. I would suspect that detecting touches would use very little power otherwise, it would greatly hinder the battery life of the phone.
Stuntman is online now  
Reply With Quote
sponsored links
Reply


Go Back   Android Forums > Android Discussion > Android Applications
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 01:01 AM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.