Hi.
I am preparing to port the touch screen for the round screen using wear OS.
What if a touchscreen reports coordinates outside the round?
For example, coordinate (1,1) are not on the screen. What if the touchscreen reports this coordinate?
Related
Hi there!
I'm having issues while coding for my Evo. While touching the screen, the Evo interprets me touching the buttons as another press on the screen instead of a onKeyDown, onBackPressed, etc. (It actually sets the MotionEvent pointer count to 2, and I can get the co-ords that I'm touching that are off the main screen, for example, 830*190 when touching the back button.)
Short of coding in the locations of the buttons (which would be different for every phone with capacitive buttons, if they all have the same issue), is there any way to get around this? Does anyone else have this issue with a different capacitive buttoned device?
The nexus has the same problem. It seems that the buttons are a extension of the actual screen. Multitouch doesn't support more than 2 touches on HTC phones. And even that is problematic because the phone registers actualy one big touch and determines the fluctuations in its size. So if you want to pinch to zoom for example the phone will compare the size of the touch between your fingers. Basically you've got a hardware limitation and there's nothing you can do about it.
Sent from my HTC Desire using XDA App
My nexus 7 has a small crack making the top inch or so of the screen unresponsive. generally this isn't too much of a problem as i can just rotate the screen however some apps/games require touching both sides of the screen at the same time and obviously this is not possible.
I have tried to use a mouse to click on the unresponsive section while using my fingers on the rest of the screen but the device doesn't register both inputs at the same time so although the mouse allows me to reach the unresponsive section i am unable to do press anywhere else at the same time, this makes anything that requires multi-touch impossible.
Is there a way to do this or am i going to have to get a new tablet?
Now I know this problem has been asked before but after some extensive searches I can see there are no clean fixes for this.
My Nexus 4 (Android 5.0.2 LiquidSmooth ROM) has started showing ghost touches at the bottom part of the screen. I know there are a lot of explanations available such as digitizer not working, battery being too old etc. But I'm not interested in these hardware issues/fixes.
I have isolated the area of effect as the bottom ~160 pixel height of the device. I then proceeded to use the ADB shell command
wm overscan 0,0,0,160
which removed that portion from the UI. This fixed the effects these phantom touches have on the apps or UI. But a problem still remains that these ghost touches happen in too many numbers and this leaves other usable areas of the screen insensitive to touch. I am guessing this is due to the multi touch limit being reached in that bottom unused part itself. Multi touch testing apps dont pick up touches on the top part of the screen
So my question is, is it possible to remove a part of the screen from the System itself? Ideally a thick black bar of unused area, leaving me with a shorter yet fully working screen? Or atleast is it possible to turn off touch response in that lower part of the screen so that it doesnt max out the multi touch limit?
My Nexus 4's is same too
I think, that ghost touch will work from Screen Digitizer. My Nexus 4's screen digitizer was non-LG's digitizer, it was fake. I need to change that digitizer
I workaround this issue avoid using undervoling in the kernel, and avoid lower temperatures in phone, yes as you read ... this issue give my crazy when my phone was to hot and I tried to cold my phone using one ice cube in screen and back, the temperature of the phone down but ghost touches appears again, so played some videos to warm the phone again and dissapear again.
Don't ask me about how it works, or relation with screen, digitizer or battery, I don't understand but help me to workaround the issue.
It's important for note-taking and drawing on stylus devices like the Galaxy Note 3 to ensure that capacitive touch is disabled when using the active stylus, to prevent a palm resting on the display from disrupting the writing etc. Note that this is distinct from software attempts at palm rejection.
We can see that this is done in Ubuntu tablets in standard tools like this by switching off the capacitive touch when the active stylus is detected near the display of the device.
LineageOS is capable of understanding the difference between active stylus input and capacitive touch input -- it displays a little circle pointer when the stylus is near the display on a devices like the Galaxy Note 3, for example. So, how can LineageOS be made to disable the capacitive touch input either
when the stylus is near to the display or
by some manual switch that disables capacitive touch input while leaving active stylus input enabled?
The goal may be similar to S-Pen Only, but this no longer appears to work on modern versions of Android/LineageOS.
So, how can input be set to active stylus-only, with capacitive touch disabled?
Had a defective touch screen. Received a new one. Does not seem to function as old touch panel. It’s inverted and works only to 70% of screen coverage. Where and how can I calibrate/ configure the file for the touch screen please. Have downloaded and run screen configuration to determine coverage