Please give me advise how to show statusbar when device is landscape.
Of course, I already tried below,
[UIApplication sharedApplication].statusBarHidden = NO;
To display status bar in landscape mode in ios 8, try following method
- (BOOL)prefersStatusBarHidden {
return NO;
}
Related
I'm running two separate apps on iOS8. In the screen shot below you can see that the UINavigationBar on the left has a height greater then the one on the right. What could be the cause of this?
Set the toolbar delegate. Then in your view controller, implement UIBarPositioningDelegate. Implement it as follows:
- (UIBarPosition)positionForBar:(id<UIBarPositioning>)bar {
return UIBarPositionTopAttached;
}
and
self.navigationController.navigationBar.translucent = NO; in viewDidLoad
I have an iPhone app that displays files to the user (videos, pdf files and documents). When you click on a file thumbnail in my FileViewController I call UIDocumentInteractionController to present the file to the user. All app screens are locked to portrait orientation apart from the document controller, that can be rotated to view landscape. This has all worked fine in previous releases, but it has suddenly changed and broken, I presume when iOS 8 was released.
Now, if I play a video and rotate it to landscape and hit done, the video is removed from the screen and the FileViewController nib that called the document the view is cut off half way down the screen.
I've done some testing and have printed out the view bounds width and height. Testing on an iPhone 4S, when I first load the FileViewController the width and height is 320 x 480, correct.
When I play a video in landscape mode and hit done, the underlaying view is automatically rotated back to portrait as landscape isn't support in this view, but when printing out the screen bounds the width is 480 and height 320. It still thinks the app is in landscape even though it's been moved back to portrait. The screen itself is the right way round, just cut off after 320 pixels!
I've been trying to manipulate the orientation of alsorts of controls but I can't see what's even generating the issue, let alone fixing it.
This is how I have implemented by orientations:
The App has been set up to support ALL orientations.
I have subclasses the tab bar controller to specify the following:
- (BOOL)shouldAutorotate
{
return YES;
}
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskPortrait;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIInterfaceOrientationPortrait;
}
Within FileViewController I call the following code:
- (void) Show_File:(File *)file
{
NSURL *targetURL = [NSURL fileURLWithPath:filePath];
UIDocumentInteractionController *document = [UIDocumentInteractionController interactionControllerWithURL: targetURL];
document.delegate = self;
[document presentPreviewAnimated: YES];
}
- (UIViewController *)documentInteractionControllerViewControllerForPreview: (UIDocumentInteractionController *) controller
{
AppDelegate *theDelegate = (AppDelegate*)[[UIApplication sharedApplication] delegate];
return theDelegate.fileNavController.childViewControllerForStatusBarHidden;
}
Any ideas? I've search around but I can't find anyone having this particular issue. Thanks.
Just for anyone else experiencing this issue, I raised a support ticket with Apple and apparently it is an iOS bug....
"This is a bug QLPreviewController (which is used by UIDocumentInteractionController to display previews)"
I have a work around which is working ok for now. In my subclass of UITabBarController I've incldued this code:
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
if (self.transitionCoordinator && self.presentedViewController.presentationController {
self.view.frame = self.presentedViewController.presentationController.containerView.bounds;
}
}
I am trying to create a preferences panel for my app using storyboards and the new NSTabViewController class.
I can get it working, but the transition setting in the storyboard seems to be ignored. It just jumps from one tab to the next, with the size of the window changing instantaneously.
I thought it might depend on whether I use autolayout or not, but it didn't seem to change the transition behavior when I toggled it.
I also have the 'Propagates title' setting checked. I had expected that it would take the label of the tab item, or the title of the view controller, and propagate that as the window title, but it doesn't seem to do that.
Anyone got this to work?
Here is a simple sample app I am testing with: https://www.dropbox.com/s/roxaplxy5gtlqns/Again.zip?dl=0
Update: Got this working thanks to Pierre. Ended up making a nice transitioning preferences window by subclassing NSTabViewController as follows:
#implementation MCPreferencesTabViewController
-(void)tabView:(NSTabView *)tabView willSelectTabViewItem:(NSTabViewItem *)tabViewItem
{
[super tabView:tabView willSelectTabViewItem:tabViewItem];
NSTabViewItem *currentTabItem = tabView.selectedTabViewItem;
currentTabItem.view.hidden = YES;
tabViewItem.view.hidden = YES;
NSWindow *window = self.view.window;
NSSize contentSize = tabViewItem.view.fittingSize;
NSSize newWindowSize = [window frameRectForContentRect:(CGRect){CGPointZero, contentSize}].size;
NSRect frame = [window frame];
frame.origin.y += frame.size.height;
frame.origin.y -= newWindowSize.height;
frame.size = newWindowSize;
[self.view.window setFrame:frame display:NO animate:YES];
}
- (void)tabView:(NSTabView *)tabView didSelectTabViewItem:(NSTabViewItem *)tabViewItem
{
[super tabView:tabView didSelectTabViewItem:tabViewItem];
tabViewItem.view.hidden = NO;
}
#end
You need to make the NSTabViewController the delegate of the NSTabView.
In Interface Builder, control-drag from No Shadow Tab View to Tab View Controller and set the delegate outlet.
One would expect Interface Builder to set this up correctly when creating a new tab view controller. It does not.
Please note that this was true until Xcode 9.
Since Xcode 9, you need to remove (or not add it) this line:
self.tabView.delegate = self
otherwise you will receive an error:
*** Assertion failure in -[YourApp.CustomTabView setDelegate:],
/BuildRoot/Library/Caches/com.apple.xbs/Sources/AppKit/AppKit-1561.0.100/AppKit.subproj/NSTabView.m:2766
2017-10-25 19:29:06.301282+0200 YourApp[23106:5687795] Failed to set (contentViewController) user defined inspected property on (NSWindow):
A TabView managed by a TabViewController cannot have its delegate modified
Or in viewDidLoad() for the NSTabViewController, include
self.tabView.delegate = self
I am building a Mac application using Swift. Therefor, I want to make a WKWebView transparent, so it shows the text of the loaded HTML, but the background of my underlaying NSWindow is visible.
I tried
webView.layer?.backgroundColor = NSColor.clearColor().CGColor;
which hadn't any effect. WKWebView inherits from NSView, but I don't know if this helps.
Another solution would be to insert a NSVisualEffectView as the background of the WebView, but I don't know how to accomplish that, either!
Use this in macOS 10.12 and higher:
webView.setValue(false, forKey: "drawsBackground")
It was not supported, then they fixed it:
https://bugs.webkit.org/show_bug.cgi?id=134779
The way to make it transparent is to:
myWebView.opaque = false
Code below works for me perfectly, also color is set to clearColor by default.
[wkWebView setValue:YES forKey:#"drawsTransparentBackground"];
I used this for macOS 10.12. without problems in OjbC:
[self.webView setValue:#YES forKey:#"drawsTransparentBackground"];
Under macOS 10.13.+ I got the following console warning message:
-[WKWebView _setDrawsTransparentBackground:] is deprecated and should not be used
The ONLY working solution was:
[self.webView setValue:#(NO) forKey:#"drawsBackground"];
I tried the below in many scenarios and it didn't work:
give the webView and the enclosingScrollView a layer and edit it's properties (backgroundColor, isOpaque)
give the webView and the enclosingScrollView a clear background color
inject javascript without the setValue forKey: in the webview.
Additionally I did use:
- (void)webView:(WKWebView *)webView didFinishNavigation:(null_unspecified WKNavigation *)navigation
{
if (self.isWebviewsBackgroundTransparent) {
[self insertTransparentBackgroundTo:webView];
}
}
- (void)insertTransparentBackgroundTo:(WKWebView *)webView
{
NSString *transparentBackgroundJSSString = #"document.body.style = document.body.style.cssText + \";background: transparent !important;\";";
[webView evaluateJavaScript:transparentBackgroundJSSString completionHandler:nil];
}
Updated, slightly better solution (2022). There is a private property drawsBackground on WKWebViewConfiguration. This property has been introduced in macOS 10.14 so it won't go away.
//https://opensource.apple.com/source/WebKit2/WebKit2-7610.2.11.51.8/UIProcess/API/Cocoa/WKWebViewConfigurationPrivate.h.auto.html
//One can verify that the property still exists:
//https://github.com/WebKit/WebKit/blob/main/Source/WebKit/UIProcess/API/Cocoa/WKWebViewConfigurationPrivate.h
#property (nonatomic, setter=_setDrawsBackground:) BOOL _drawsBackground WK_API_AVAILABLE(macos(10.14), ios(12.0));
Example:
let configuration = WKWebViewConfiguration()
var requiresDrawBackgroundFallback = false
if #available(OSX 10.14, *) {
configuration.setValue(false, forKey: "sward".reversed() + "background".capitalized) //drawsBackground KVC hack; works but private
} else {
requiresDrawBackgroundFallback = true
}
let webView = WKWebView(frame: .zero, configuration: configuration)
if requiresDrawBackgroundFallback {
webView.setValue(false, forKey: "sward".reversed() + "background".capitalized) //drawsBackground KVC hack; works but private
}
I just have one question related to presenting a from sheet view controller in iOS 8. In iOS 7 I was able to change the height of the view controller using the last line of code in the function below:
SendRemainingEvaluationsViewController *sendRemainingEvaluationViewController = [[[SendRemainingEvaluationsViewController alloc] initWithNibName:#"SendRemainingEvaluationsViewController" bundle:nil]autorelease];
UINavigationController *navigationController = [[[UINavigationController alloc] initWithRootViewController:sendRemainingEvaluationViewController] autorelease];
navigationController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentViewController:navigationController animated:YES completion:nil];
//To Change the default size of the viewController which is presented in UIModalPresentationFormSheet presentation style
navigationController.view.superview.frame = CGRectMake(navigationController.view.superview.frame.origin.x, navigationController.view.superview.frame.origin.y, navigationController.view.superview.frame.size.width, 230);
But this does not work on iOS 8, not sure why? Does anyone knows what is the problem? any idea will be appreciated.
Thanks in advance.
After checking it, I could figure out the problem. After initializing the view navigation controller, its superview is nil and you can't access it right after presenting it. As a workaround, you can change the frame of its superview in the viewwillAppear of the view controller you're trying to present as you can see below:
- (void) viewWillAppear:(BOOL)animated
{
self.parentViewController.view.superview.frame = CGRectMake(self.parentViewController.view.superview.frame.origin.x, self.parentViewController.view.superview.frame.origin.y, self.parentViewController.view.superview.frame.size.width, 230);
}
This should work.