I'm making my app support the dark mode, but I encountered a problem. When the app is in the dark mode, it will take much more time to load the picture than light mode. I hope to get help, thank you very much.
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Have you verified that your image does not have different variants based on system Appearances?
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when i turn on the computer, the image on the monitor is completely black. When I plugged the Xbox into the monitor, there was a picture. Can somebody help me?
My problem is that my application's icon seems to be resized to fit the rounded-corner mask applied when displayed on the home screen.
EDIT: Here's the image:
My image follows the guidelines in these locations (mainly that it is 120x120, and doesn't have pre-rounded corners):
https://developer.apple.com/library/ios/qa/qa1686/_index.html
https://developer.apple.com/library/ios/documentation/iphone/conceptual/iphoneosprogrammingguide/App-RelatedResources/App-RelatedResources.html#//apple_ref/doc/uid/TP40007072-CH6-SW4
I've tried:
1) Using an image catalog
2) Searching for the issue on this site. I looked through the first 5 paginations sorted by newest and can't find anyone who's had the issue...
3) Making sure that the image is specified in the info.plist
4) Checking the troubleshooting app icon issues on the apple developer site.
The icon always ends up drawn with the black edges.
Is there a way to programmatically make sure the mask is applied correctly?
Has someone else encountered the same issue?
It sounds like you might have the wrong DPI set in the icon PNG—if it’s something other than 72 (the screen’s nominal DPI in points), the system may be trying to scale it to match.
It looks like the DPI was correct. The problem was that there was a transparent background layer, wider than the image that Android Studio seemed to have added when it was run through that deployment process. The layer went unnoticed in preview because it doesn't highlight the transparency. Noticed it when I opened it in GIMP.
So it was a silly oversight on my part.
If you make a simple website with the code:
<div style='background-color: rgba(0,0,0,.05);width:50px;height:50px'></div>
and view it on various devices, you'll see very different colors.
On my iPhone and iPad, it looks white but on my MacBook you can see a definite light grey that looks close to #fafafa; I haven't tested thoroughly on other devices but I think that Android Chrome will sometimes display a third in between color.
This isn't an issue of different screen color capacities, because the iPad is definitely capable of displaying #fafafa.
So what's the story and is there any way to fix it?
rgba(0,0,0,.05) is an incredibly light color. A 5% tint is not visible on many lower end LCDs - especially 6bit panels. Personally, when I use RGBA I only tweak by 10% increments. Also, you will notice that #fafafa and rgba(0,0,0,.05) don't display the same because they aren't the same. #f2f2f2 is rgba(0,0,0,.05) (at least in Photoshop.)
You also have variances between the type of RGB. Devices also adapt differently based on lighting conditions - and they don't adapt the same way. There's also different screen types like AMOLED
From my experience that normally happens because of the contrast on the different screens and brightness settings. My suggestion is play with those.
Also check this for browser compatibility but those you mentioned should be ok:
http://css-tricks.com/rgba-browser-support/
got a question about turning pixels off on a screen. I can make a black image and show it full screen on my pc. Yet the screen looks black but the pixels aren't off. You can see the difference between an off screen and a black screen.
I am wordering if it would be possible to turn these pixels off via a program or is the best you can do: make them black?
I am looking for the delphi code to turn off the right half of my computer screen?
hope its clear!
thx
You can't turn off individual pixels, or parts of the screen. Either the screen is on or it's off.
This works a bit differently depending on what kind of screen it is, but nowadays LCD screens is the most common kind. An LCD screen has a backlight behind an LCD display; the backlight is always on, and shine through the LCD display when the crystals are transparent. Pixels are made black by making the crystals non-transparent, however they still let a fraction of the back light through. To make pixels completely black you would have to turn the backlight off, and you can only to that for the entire screen.
If I get it right, you want to turn off the power from the half of your monitor, what is impossible. It would have to be supported by your graphic card as well as by your monitor driver.
Turning off pixels can only work on new all-lead displays, except if you are switching off the computer, when all systems (including the screen) are off.
I'm a little bit of a graphics nut, but I'm trying to figure out why the colors on my iPad simulator on my macbook pro seem much much more vibrant than they do on my actual iPad 2. Does anyone have any experience with this.
Or is there anything that i can do to help them seem much more vibrant than they currently are?
Thanks.
James.
Honestly, it might be because they are physically different screens. Color matching is extremely difficult with different LCD manufacturers, backlights, etc… That's why it's always important to test on the device.
Now, if you are seeing a different colors in Photoshop and the actual device, I'd point out that iOS devices don't use ICC Profile for color matching. But neither does the iPhone simulator so that theory is out if the simulator is different than the device.
Here's more info: http://ipadportfolioapp.com/howto/advancedUse/colorManagement
Edit:
Also, what display profile are you using on your MacBook Pro? (System Preferences > Displays > Color). Mine just uses Color LCD. If you have something else here, that might explain the difference. You can even try calibrating your MacBook screen here. Keep in mind that it could just be a difference between physical displays
As other's have answered, the displays differ, but could be better if you could color calibrate both displays. Unfortunately, iOS give you no color calibration options, so you can just adjust the calibration of the Mac's display to get close to the iPad.
Using the Mac OS X supplied color calibrator in the Displays System Preference I'm able to get the simulator to show colors very close to my iPad 2's display. Just follow the steps. I used a gamma of 2.2 and a white point of D65, which seem to match my iPad, but you can play with those setting while comparing devices to get what works best with your iPad and Mac.
My last step is to adjust the brightness of the iPad to visually match the simulator on the color calibrated Mac monitor.
Do you check the brigth of the screen?
or could be that your iPad screen is yellow?
Apple iPad 2 suffers from yellow screen tint?