IOS 8 already has a GRAY MODE to display as White/black screen?
But how can I realize a similar mode on my Android？
Just add a view above all windows with ColorMatrixColorFilter and Saturation set to 0...? But I failed..
Is there any other method that can help achieve my goal？
Related
Hi,
Do you know if there is any way to hack the screen global contrast / colour settings on Android devices? I know there exists an API for brightness, but I would like to induce whacked colour modes (change R to G, etc.) which correspond the drug usage.
This would be a very low level operation, so I assume this would be device specific and go to display driver settings.
-Mikko
My Nexus 7 (2012 model) display got broken and I've purchased new Full LCD display+Touch Screen Digitizer (from: http://www.aliexpress.com/item/Orig...itizer-for-ASUS-Google-Nexus-7/767556272.html).
Touch screen is working fine, but the display is not working correct.
Problems:
Images is pixelated all the time. Always
Display is not coming properly. Ex: settings screen is supposed to be smooth gray gradient, but coming as color palette (color bars) instead of smooth gradient. (see image 7)
Previous screen is seen next scree. Ex: in settings screen I can see home menu icons (highlighted with red lines)
Sometimes pinkish color is coming, and sometimes whitish tone is coming
I've attached few images I've taken using my Mobile and few screenshots I've taken directly from Nexus 7. In the screenshots you can see the images are pixelated.
Where could be the problem? How does the screen capturing works in Android? I mean as I've taken direct screenshots and those images got pixelated, does that mean problem is with GPU or does Android will capture the image some home from the display?
Can any one tell me how Android screen capture works?
If Android captures what it is sending to display, then the problem is with GPU.
If Android captures the pixels from the display (some how after shown on the screen), then the problem is with LCD.
Can anyone suggest what could be the problem?
(I've attached images as zip file, as direct image upload is lowering the image quality and one may confuse about the actual problem)
Okay, I think I got an answer (or at least part of it).
Answer: Android captures what it is sending to display (technically, from something called FrameBuffer).
So, I think I've problem with GPU connectivity (may be some loose connection?). Can any one confirm?
Reference:
http://www.imajeenyus.com/computer/20130301_android_tablet/android/taking_screenshots.html
http://stackoverflow.com/questions/19270968/how-to-capture-screenshot-from-framebuffer
http://stackoverflow.com/questions/2807070/screenshot-of-the-nexus-one-from-adb
http://superuser.com/questions/265922/how-does-the-print-screen-key-work
https://nativedriver.googlecode.com/files/Screenshot_on_Android_Internals.pdf
Does anyone know if it is possible to zoom the display on the Note 3?
For example I wish to zoom in to 75% of display before running certain applications where I need to see an enlarged center of the screen.
I tried the screen record function in cm11, but the nook color screen resolution 1024x600 does not work. Does anyone know what screen resolution works besides 1280x720? See attached screen print.
I logged the issue in Android issue tracker #74067
Hi everyone,
I have created an android wallpaper app and it works perfectly on my device (Xiaomi Redmi note 7 pro).
I have placed all the wallpapers inside drawable.
But when I installed it on other phone having lower screen resolution it didn't work.
How to use/resize same images for other screen resolutions. Or how to select different images as per screen resolution. (if I resize images for different screen resolution).
Or any other better option.
Thanks in advance.