I have a TextView using white text so it shows up against the dark background image I am using. I want to keep a background image behind this text.The TextView is correctly responding and phone number on it shows as blue which is hard to see against the background. Is there a way to change the color of these detected phone numbers, links etc?
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I need to put white color in the top of my screen, but the problem is the time and battery can't appear (see in the picture), So I need to change them to black.
Currently I have a button that changes the background color of my app (my users complained that it melted into other windows when grey, but others wanted that color scheme). I have 3 color options: grey with black text, light blue with blue text, and purple with white text.
Problem 1:
Dark mode is messing with my color scheme - can I set something up to adjust based on if they have dark mode on? Otherwise, I'm going to have to end up with grey text with a grey background in order for it to be ok when it switches back to grey.
Problem 2:
Button text - this wasn't so bad when using light mode because the buttons didn't change color, but on dark mode, this gets hard to read the button. White text on a light blue background hurts my eyes
I'm unable to attach images due to my level
I'm using Xcode 11.5, swift 5, and I'm coding for a Mac Application
Sounds like you are using the system color for the text / background color. And in dark mode, IOS will automatically change the system color for different mode. For reference:
https://developer.apple.com/design/human-interface-guidelines/ios/visual-design/color/#dynamic-system-colors
Indeed for both problem 1&2, if you want to use custom color (not the system one) for each mode, you can put your color sets into an asset file (and I would suggest adding a new one, rather than adding all color together with your image). For each set of color, set them to the desired appearance (any, light, dark), then set the color by code.
Apple give a detail documentation about that:
https://developer.apple.com/documentation/xcode/supporting_dark_mode_in_your_interface
How do you stop an Image from repeating in an UITextView? What I want to achieve is have a UITextView that has text loaded from a .txt file (already works) and loads a preview image (already works) and finally I want the background to display my Logo at the top along with background colors I've made (all in 1 .png file), while when you scroll, the logo will go away and the rest of the background will scroll as well. My problem is that the Image repeats near the end of the text. If I make the image larger, my Logo stretches and looks sloppy, I'd like to keep the image at (0,0,480,However high the text is) and still keep the integrity of the logo in tact. I've tried searching the other similar questions but they all seem to want the repeat and I do not. Suggestions?
What about having a UIImageView that acts as a background image and setting the background for the textView to transparent - will it help?
Sometimes pdf might have a transparent background. And In my application I have given a option to choose background. So, in case of pdf with transparent background and background color black all things becomes black black so, any way to check or any key inside dictionary of pdf page that can help me? Any help will appreciated.
The easiest solution for you would be to remove black color from available background colors.
Generally, all pdf pages have transparent background and the white background color is set by the viewer application. It is possible to set a background color for each page. You can read all about it in Page Group under Transparency section of the PDF Reference.
It is also possible to show a background color for a page by setting 'BoxColorInfo' dictionary in the page dictionary with appropriate values.
But I am not sure what you can achieve by knowing what color a page background is, since black background is going to be a problem for PDFs with transparent pages anyways.
EDIT: Following is the paragraph from PDFReference i was trying to point you to:
Ordinarily, the page is imposed directly on an output medium, such as
paper or a display screen. The page group is treated as an isolated
group, whose results are then composited with a backdrop color
appropriate for the medium. The backdrop is nominally white, although
varying according to the actual properties of the medium. However,
some applications may choose to provide a different backdrop, such as
a checkerboard or grid to aid in visualizing the effects of
transparency in the artwork.
It says that most PDFs would have a transparent and it is your application which shows the background color. Hope this helps.
I would like to change the color behind the flip from white to a different color or picture. Is that possible?
Change the background colour of the UIWindow in MainWindow.nib. Either "black" or "clear" should both work (I think...)
It's one of the first things I do to any app, otherwise you get bits of white showing on a view rotation (in the very old days of 2.x there were huge patches of white; they've since masked off the screen edges during a rotation, but a few pixels still show through) and when you show/hide the status bar (e.g. for UIImagePicker) and stuff. Black looks a lot better than white for the window background.