I am having some graphical issues adapting my app to ios7. All my icons (color icons) now seem worse. They are completelly blue or grey depending where they are set.
Ok, I can assume that. But now, I have some problems with UISegmentedControl. they show a blue thiny line all around and I want to hide it. Just showing the image icon.
Is it possible?
Related
My goal is to view the content of the bottom page from the top of the other content page. In order to accomplish this, I used PushModalAsync to navigate and set the BackgroundColor property of the navigation page to Transparent. I can view the content on the bottom page on Android. However on the iOS platform, a black color is always displayed and I am unable to read the content of the bottom page. Why is the background color always black even when it is set to be transparent in PushModalAsync?
Note: The iOS platform displays a white screen when I change the navigation to PushAsync.
Expected Behavior:
Background color should not be black and it should be transparent when navigating using PushModalAsync
Actual Behavior:
Background color is always black even when the content page background color is set as transparent when navigating using PushModalAsync
Android Screenshot
iOS Screenshot
The issue reproducing sample is provided below:
DemoSample
If you want to do EXACTLY like that, it is not possible (it will require so much work that you can't expect someone to provide you the solution here).
On iOS that control (ViewController) is drawn that way in that presentation mode. So as long as you use that control and that mode it will work that way irrelevant if you use Xamarin or something else. As ViewControllers are most basic controls it is not realistic to replace them with something else. But you can replace presentation mode. In Xamarin.Forms you can do that this way:
<ContentPage ...
xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core"
ios:Page.ModalPresentationStyle="FormSheet">
...
</ContentPage>
This will result in somewhat different visual presentation but that is the only way to have one ViewController drawn over another without going into some deep customization that would require tons of code, especially on Xamarin.Forms.
You can also try some other values, but the default value will not work.
In iOS, the hierarchy is managed by the view controller. Each page has a separate view controller. A page consists of a window, a root view, and a subview. You cannot see the layout of the previous page by setting the background color to be transparent.
For more details, you can refer to the following documents:
User interface | Microsoft
The View Controller Hierarchy | Apple
I developed an iOS app based on a tab bar at the bottom of the screen. The tab bar is supposed to have an OPAQUE white background, however with the latest iOS update the appearance gets sometimes altered..
After clicking on the “more” tab and selecting any of the tabs displayed in the vertical list, the view that appears next has a TRANSPARENT rather than a WHITE OPAQUE tab bar background! Forcing the tab to a specific color in the AppDelegate.m and setting alpha to 1 does not solve the issue. It still shows as transparent.
self.tabBarController.tabBar.barTintColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:1.000];
It is very frustrating seeing old code that was working perfectly well breaking for no good reasons with subsequent iOS updates..
I am in the process of transitioning an app to iOS7. All of the views throughout the app have a 44px empty space at the bottom that appears to be for a bottom toolbar or something, but I am not trying to display a bottom toolbar. This space also exists on views that do have a bottom toolbar and the toolbar just shows directly above it.
The red space shown is actually a view behind the black view. No matter what size I set the frame of the black view to, the red space is always shown. I am also hiding the status bar in plist, so don't know if this is an artifact from that or if it has something to do with navigation bar as they are both normally 44px in height.
I have looked at the transitioning guide and haven't found anything that's worked. Any ideas to what could be causing this and how to fix?
UPDATE:
I have tried setting edgesForExtendedLayout = UIRectEdgeAll and extendedLayoutIncludesOpaqueBars = YES (also tried NO) with no effect. When I look at the subviews of the navigation controller it shows a UIToolBar as hidden, but shows it contains a frame in the exact area the view refuses to resize to even with autolayout constraints.
UPDATE 2:
This is actually a problem with ViewDeckController (https://github.com/Inferis/ViewDeck) and the way it sets it's center view bounds.
I believe it has to do with the UINavigationBar. Try toggling the following options in Storyboard and see if it solves the problem. Namely, the 'Extend Edges' options:
These options can also be set in code with the edgesForExtendedLayout and extendedLayoutIncludesOpaqueBars properties on UIViewController.
If you are transitioning to iOS 7, you should be using an Auto Layout constraint to anchor to the Bottom Layout guide. Control drag from your view to the Bottom Layout guide and choose Vertical Space from the popup menu.
Using frames in iOS 7 is harder and is the way of the past.
Auto Layout is hard to grasp at first, but it is very powerful once you get the feel.
This is actually a problem with third party library ViewDeckController (https://github.com/Inferis/ViewDeck) and the way it sets centerViewBounds for IIViewDeckControllerIntegrated. I was able to figure it out after changing to IIViewDeckControllerContained and seeing the view sized correctly.
In IIViewDeckController.m, just return self.referenceBounds for iOS7 like it does for IIViewDeckControllerContained.
I'm build a Mac application in the style of the Lion Mail.app. As part of this I'm attempting to create a simular toolbar to the one in the Mail.app but I can't seem to get the image in my toolbar button centered vertically.
Looking at the Mail.app toolbar I see a nice series of buttons with centered icons:
but when I go interface builder I can't seem to recreate the same button. What I get is:
What I've tried doing is, in Interface Builder:
Create a new window
Add a NSToolbar to that window
Add an NSButton to the toolbar with Style - 'Push', Image - 'Envelope', Position - 'NSImageOnly', Scaling - 'Proportionally Down'
As you can see the icon is clearly not centered vertically on the button like those in the Mail.app toolbar.
Anybody have any ideas???
At the moment I'm using XCode 4.2 and laying out this button with Interface Builder. I'm trying to build the toolbar button by ONLY adding the image to the button and not painting the button for each item, ie drawing the border and icon.
Any help would be greatly appreciated as this has been driving me a little nuts.
Thanks in advance - AYAL
Turns out the answer to this problem was much simpler then I had expected. After a lot of teeth gnashing, hair pulling, and twiddling pixels I came across the solution.
Instead of using a 'Push' button I simply had to switch to a 'Round Textured' button. Once I did that any image I added to the button was nicely centered. Next I just had to manually scale my image to look right.
The recipe then for a Mail.app Toolbar is as follows:
Add a button to your Toolbar
Set the button style to 'Rounded Textured'
Set the image of the button
Set the position to 'NSImageOnly'
Set the button size to 40 x 25 as well as the min and max sizes of the ToolbarItem
The result is a toolbar that can look very simular to the Mail.app toolbar.
Thanks All - AYAL
One way to do it is to have your image actually be the button i.e. take up all of the button's canvas. You will have to use the button's setBordered: method so the button's border is not drawn.
you could make the button image in something like gimp or photoshop then use that as the background or image for the button.
i feel like your going to say "this is what im doing". and maybe you made the little mail icon but i mean for you to make the whole button, outline and everything, then use that for the button image. make sense?
like here, just use this as the background
My (cocoa) application has an usability problem with Lion (OS X 10.7). There is a scrollable component that has a dark background, so it is hard to see the default transparent dark scrollbar.
Is there a way to replace the appearance of the scrollbars with a lighter (white) one? Safari and other browsers seem to do this dynamically based on the websites backgrounds, but I have found no easy solution for a native cocoa application. Is there a solution that do not involve subclassing NSScrollView?
[myScrollView setScrollerKnobStyle:NSScrollerKnobStyleLight];
From the NSScrollView Class Reference.
If your window is created in IB, you can change the scroller style in the Attributes inspector.