How to reproduce the night mode animation in Tweetbot 4 - ios

It is not difficult to change the background color of the table view and every single cell. The difficult part is to animate this change with a sliding effect. As the dark color slides from the top of the screen to the bottom, you also have to coordinate the color change of the navigation bar and tab bar. Any ideas possible solutions?

Related

Swift How do I stop the tab bar from changing background colors

I'm working on a project that requires a Tabbar. Currently I have my code set up so that after login or sign up I'm presented by the Explore tab (The third tab). The goal I'm trying to achieve is to have my project only show a translucent tab bar background. When I was originally working on my project I had no issue doing this. I ran in the problem after I incorporated a table view that allow for scrolling. Currently when ever I push on the tab 1-4 I get a translucent background. When tab 5 (includes the table view with scrolling) is pressed the background of the tab bar changes to a gray color. Even if I press out of the tab to a different one the gray tab bar background color doesn't change. The only way I found to dismiss the back ground color after the 5th tab has been selected is to scroll all the way down. After I'm scrolled down it allows the user to see the translucent background again. Then you can select different tab bars and you'll see the translucent background again. How do I only show a translucent color
You need to set Bar-Tint colour to Default. ScreenShot

iOS is it possible to have status bar that is half light and half dark

I have status bar where left part is on dark background and I have there light text content. But right part of status bar background is on the other hand white and I would like to have there black text.
Is it possible to set different colours of status bar content in left and right half. In left I have dark menu and in right I have content on white background.
I found solution but I have Split View Controller and then I can override in preferredStatusBarStyle differently in Master and Detail view controller. In general I think it will not be possible while having single view controller

Transparent Navigation bar becomes solid colour when scrolling to bottom

I have a tableview controller which has an embedded navigation bar. I managed to make my nav bar transparent. Now I am trying to achieve a solid color nav bar when I scroll towards the bottom of the table view. I am relatively new to iOS development. So please answer accordingly. I have no idea about scroll views either. I am not sure if I need to add a scroll view or not. If I do, where do I add it? Above the tableview or below it?
Here are a few images of what I want to achieve:
Image 1: Transparent nav bar, but bar button items are visible
Image 2: Transparent nav bar becoming white, bar button items' color changing from white to red
Image 3: This is the final image, where nav bar becomes white and bar button items become red.
If we scroll back up to the top, everything goes back to being the way it was at the start.

UIPageViewController Page Spacing + Background Color

I have a couple of UIViewControllers embedded in a UIPageViewController.
Since the bouncing of the UIPageViewController apparently can't be disabled without ugly hacks, I would like to change the color that appears in the background when bouncing.
I know I can set the backgroundColor with view.backgroundColor, but I would like to have a different color for the background and the little space (Page Spacing) between the VCs.
How can I for example set a blue color for the spacing and a white color for the background that appears when bouncing?
Thank you!

Any quick solution to make a view appear behind the status bar in iOS 7?

I'm porting my app from iOS 6 to IOS 7 (there will eventually be a complete GUI redesign for iOS 7 but in the meanwhile just getting the existing GUI to display properly on iOS 7 is the goal.
I had the issue where the status bar was overlapping my GUI and so have shifted the Y origin of the view controller's view down by 20.
However my app contains a pulldown which when retracted is overlapping with the status bar. In the screenshot the red is a button which is present in the pulldown view. The grey bar is the top of the main view behind which a portion of pulldown is hiding when retracted.
I implemented the pull down as a fixed size child subview of the main view and when retracted its Y origin is a negative number thus it is effectively still displayed but off the top of the screen. When the user pulls it down I just animate the increase in the Y origin until eventually the origin is 0.
Is there some way I can make the pull down view appear beneath the status bar or some other quick solution?
Note of course I can't simply toggle the pulldown's alpha to display/hide it as it pullsdown obviously thus its appearance/disappearance is not a discreen action. I could maybe attempt to make the portion of it that is on top of the status bar invisible but as its something that is moving that seems like its going to be complicated. Is there any simple solution?
Thanks
Add another view, with a fixed position, under the status bar (with the same color of your grey bar), 20px tall and same width of the status bar, but with a z-index higher than the retracting view. This view will cover the retracting view (but not the status bar) acting as a "background" for the status bar itself. Obviously you have to adjust the Y position of the retracting view to make it tappable by the user (but under the status bar)
iOS 7 by default lets views take up the fullscreen, including the status bar. This is controlled using the UIRectEdgeAll property.
If you want the old style view, set UIRectEdgeNone for self.edgesForExtendedLayout
in viewDidLoad:
self.edgesForExtendedLayout = UIRectEdgeNone;

Resources