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How can I create a custom indexing like this. I have tried to give a image & color in the back but it doesn't work for me.
See UIButton TouchUpInside Touch Location - it's as easy as having a custom buttom with 26 * n pixel height, the y-value divided by 26 and converted to a character will give you the index.
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SwiftUI offers theme dependent Colors like .primary and .secondary. How to get inverted versions of these (to use as background for example)? System itself knows which background color to use depending on light/dark theme.
you can use the colors "label" and "systembackground", they are usually opposite.
So use UIColor.systemBackground and UIColor.systemLabel for the opposite
or UIColor.secondarySystemBackground and UIColor.secondarySystemLabel etc...
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It's quite a minimal question so I apologize but I haven't found any good tutorial on this.
In Flutter: How can you detect when a touching finger has entered the widgets bounds?
You can check this dependency to check whether the widget you are touching is in the bounds or not.
By using this View Port Condition you can configure the view selection.
isInViewPortCondition : your condition
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How to draw this red line, between two lines but in 3D space.
Have you tried Vector3.Angle?
Note: this always returns the acute angle.
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I have custom buttons which I need to be placed in certain areas when I setup them up via a template i have on PS they look pixel perfect but the when I run it it looks like crap. I have the right sizes and the right x,y coordinates set up in the attributes section? is there any way to not have a status bar at all or some way to get pixel perfect measurements?
Try This
btnObje.frame = CGRectMake(x,y,image.frame.size.width,image.frame.size.height);
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So what I'm looking for is a table view that supports and displays an array of cells (think excel).
The 2D implementation should have cell caching for performance, optimized for panning.