[App] NoLED - Use the AMOLED screen for incoming notifications

This is a discussion on [App] NoLED - Use the AMOLED screen for incoming notifications within the Samsung Captivate Hacking forums, part of the Samsung Captivate category; Here's a cool app I ran across today that will display a black screen with a red dot somewhere in the left top corner upon ...

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Thread: [App] NoLED - Use the AMOLED screen for incoming notifications

  1. #1
    dandroid
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    [App] NoLED - Use the AMOLED screen for incoming notifications



    Here's a cool app I ran across today that will display a black screen with a red dot somewhere in the left top corner upon receiving a notification.

    1. When your phone receives a notification, it switches the screen on and displays a red dot somewhere in the top left corner. The location of this dot is random every time you receive a new notification. This will guarantee using different LEDs so that the same ones won't be burned out ! The reason why I chose red is because it uses the least amount of energy to display.

    2. The app runs as a service, after installing, you'll need to lock the screen once and unlock it for it to activate. After this, the application should run automatically after a reboot.

    3. To get rid of the red dot, the only key you can use is the home key. Using the capacitive touch buttons will do nothing, and so as clicking anywhere on the screen. Once your screen turns on, the notifications disappear and will not come up until a new notification sound is received.

    I have also logged the touch drivers and saw that although I'm displaying a black screen and setting flags to not respond to touch messages, android is still receiving touch messages when you touch any spot on the screen. This, I imagine, consumes resources! So I disabled the touch drivers when the black screen is active. Pressing on the Home button should reactivate it. If your screen is unresponsive to touch even after the notification screen is dismissed, a simple restart should take care of it. Once you've restarted, you can uninstall the app.

    Now the touchscreen drivers were a lot easier to mess around with. The sourcecode given by samsung helped me achieve the activation/deactivation of the screen. Things are not the same with the capacitive buttons. You'll notice that when the black screen is on, if you touch any of the soft buttons, they'll light up (although am suppressing them programatically). Am still analyzing the drivers to see if there is an easy way to disable these drivers too when the notification is on.

    One more note, make sure the notification sounds that you choose for your different apps (Calendar, Gmail, Gtalk.. etc) are the default samsung notifications or the ones you placed in /sdcard/sd/media/audio/notifications
    Any other sound notifications will simply not trigger the program to display the notification screen.
    The app is still in beta so use at your own risk, for more information check out: [App] NoLED - Use the AMOLED screen for incoming notifications - xda-developers

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  3. #2
    Senior Member Joe Coolcool's Avatar
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    Apr 2010
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    408
    Cool.
    Credit goes to ee0r.com for my avatar.

  4. #3
    Junior Member unleashedvigilante's Avatar
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    Jul 2010
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    14
    Thanks a lot for sharing this! From day 1 with this phone I have missed not having any kind of notification light.

  5. #4
    Junior Member techfiend4's Avatar
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    Jul 2010
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    10
    I love this! It works like a charm and easy to install

    Sent from my SAMSUNG-SGH-I897 using Tapatalk

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