What is the best way to position background image below header image. Currently I have:
header = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"h.png"]];
[header setContentMode:UIViewContentModeTop];
[self.window addSubview:header];
background = [[UIImageView alloc] init];
[background setImage:[UIImage imageNamed:#"bg.png"]];
[background setFrameOrigin:CGPointMake(0,header.frameHeight)];
[background addSubview:background];
but I get the following error:
No visible #interface for 'UIImageView' declares the sector 'setFrameOrigin.'
I want to use UIView method, so that I can place a table view inside background view afterwards.
[background addSubview:background];
is not OK in your code. You are trying to add a view as subview to its self.
Just create a rootviewcontroller and set as in your app delegate as rootview controller.
self.window.rootViewController = rootviewcontroller;
then you can add your background view as subview on the view of rootviewcontroller. after that you can do it for headerview.
[rootviewcontroller.view addSubview:background];
[rootviewcontroller.view addSubview: headerview];
you can use:
CGRect rect = background.frame;
rect.oigin.x = x;
rect.origin.y = y;
background.frame = rect;
or:
background = [[UIImageView alloc] initWithFrame:CGRectMake(x, y, w, h)];
[background setFrame:CGRectMake(0, header.frame.size.height, 60, 50)];
Try like this it will be helpful to you.
Related
I have this code in viewDidLoad:
[self.navigationController setNavigationBarHidden:YES];
self.edgesForExtendedLayout = UIRectEdgeNone;
self.view.autoresizingMask = UIViewAutoresizingFlexibleHeight;
self.view.backgroundColor = [UIColor whiteColor];
//we need to add white background behind the status bar
CGFloat statusBarHeight = [UIApplication sharedApplication].statusBarFrame.size.height;
UIView* statusBarWhiteBackGround = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, statusBarHeight)];
[statusBarWhiteBackGround setBackgroundColor:[UIColor whiteColor]];
[self.view addSubview:statusBarWhiteBackGround];
UIView * redBackGroundColor = [[UIView alloc] init];
[redBackGroundColor setBackgroundColor:[UIColor redColor]];
redBackGroundColor.frame =CGRectMake(0,statusBarHeight , self.view.frame.size.width, self.view.frame.size.height-statusBarHeight);
[self.view addSubview:redBackGroundColor];
statusWhiteBackGround view is used to change the color of the status bar.
here is the result of the above code:
but when the app enter background and then back to foreground, the redBackGroundColor view change it's orging.y as you can see in the bellow picture:
what's the problem ?thanks
Create a UIView programatically on method
-(void)viewDidLayoutSubviews{
screen=[[UIScreen mainScreen] bounds];
//Simple view
self.customView = [[CustomAlertOKView alloc]initWithFrame:CGRectMake(0, 20, screen.size.width, screen.size.height)];
[self.view addSubView:customView];
}
or
Create a view using storyboard and set the x as 0, y value as 20,width and height based on the screen size
#IBOutlet UIView *customView;
set the outlet in the storyboard,
Then set the background color of the custom view to redcolor and main view to white color
self.view.backgroundColor = [UIColor whiteColor];
customView.backgroundColor = [UIColor redColor];
Is there a way to insert any UIView in NavigationBar like the image below?
Is this not working?
UINavigationBar *navBar = [[UINavigationBar alloc] initWithFrame: CGRectMake(0.0f, 20.0f, 320.0f, 32.0f)];
UIView *tempView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 20)];
[[self view] addSubview: tempView];
[[self view] addSubview: navBar];
UINavigationItem *navItem = [[UINavigationItem alloc] initWithTitle: #"Controls"];
[navBar pushNavigationItem:navItem animated:NO];
In the code below, I embed a view into the navbar, where my embedded view draws the background and the new buttons. The code also deals with relaying out the view when the device is rotated.
- (void)viewDidLayoutSubviews {
[super viewDidLayoutSubviews];
if (view.superview == nil) {
[self.navigationBar addSubview:view];
[self.navigationBar setBackgroundImage:[[UIImage alloc] init] forBarMetrics:UIBarMetricsDefault];
}
CGRect frame = self.navigationBar.frame;
frame.size.height = MY_NAVBAR_HEIGHT;
self.navigationBar.frame = frame;
view.frame = self.navigationBar.bounds;
}
An alternative solution is to use a regular UIView as a NavBar, and by saying that what I mean is you have to set the UIView in navbar place and hide the NavigationController bar in the main VC and show it in the next one read this article Here https://medium.com/me/stats/post/54bc5fc56d6c
I'm developing a iOs app for iPad and I'm implementing a UIImageView inside a UIView. The problem is that if the position of the image view has a position out of the UIView that it is inside, you can see it. The code:
UIView *vistafunda = [[UIView alloc] initWithFrame:CGRectMake(512/2, 48, 525, 651)];
[self.view addSubview:vistafunda];
vistafunda.backgroundColor = [UIColor darkGrayColor];
UIImageView *img = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"hola.png"]];
img.center = CGPointMake(12, 200);
[vistafunda addSubview:img];
I would like that the image view was always under the view, so if the image is outside the view you could not see it.
Thanks!
Just make the containing view clip it's children
vistafunda.clipsToBounds = YES;
i have a problem with UIScrollView and UINavigationController(s) and iOS 4. The following code works fine with iOS 5:
////////////////////////////////////////////////////////////////////////////////////
/* Scroll View */
////////////////////////////////////////////////////////////////////////////////////
mScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 88, 1024, 668)];
mScrollView.contentSize = CGSizeMake(1850, 668);
////////////////////////////////////////////////////////////////////////////////////
// First View
////////////////////////////////////////////////////////////////////////////////////
UIImageView *imgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed: #"view_bg.png"]];
imgView.frame= CGRectMake(10, 50, 350, 510);
[mScrollView addSubview:imgView];
[imgView release];
mFirstView = [[[FirstView alloc] init] autorelease];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:mFirstView];
navigationController.navigationBar.tintColor = [UIColor colorWithRed:79.0/255 green:143.0/255 blue:0.0/255 alpha:1];
navigationController.view.frame = CGRectMake(25, 65, 320, 480);
[mScrollView addSubview:navigationController.view];
////////////////////////////////////////////////////////////////////////////////////
// Second View
////////////////////////////////////////////////////////////////////////////////////
UIImageView *imgView2 = [[UIImageView alloc] initWithImage:[UIImage imageNamed: #"view_bg.png"]];
imgView2.frame= CGRectMake(380, 50, 350, 510);
[mScrollView addSubview:imgView2];
[imgView2 release];
mSecondView = [[[SecondView alloc] init] autorelease];
UINavigationController *navigationController2 = [[UINavigationController alloc] initWithRootViewController:mSecondView];
navigationController2.navigationBar.tintColor = [UIColor colorWithRed:79.0/255 green:143.0/255 blue:0.0/255 alpha:1];
navigationController2.view.frame = CGRectMake(395, 65, 320, 480);
[mScrollView addSubview:navigationController2.view];
// finally add the scroll view to the parent view
[self.view addSubview:mScrollView];
All i do is, to add a ScrollView with 2 NavigationControllers (with a allocated root view controller) do the view. But using this code with iOS 4 does not show the right size of the ViewControllers added. The ViewControllers are the size of the whole iPad screen!!!!!
As i already said, it works on iOS 5! Even when i change the size of the views added manually it is not working, the added view always fills the whole iPad screen!! Any ideas to fix this?
Thank you in advance!
in your code you have the following
//first view you add mfirstview.view
[mScrollView addSubview:mFirstView.view];
//second view you add navigationController2.view
[mScrollView addSubview: navigationController2.view];
So i guess you have to change the first view code to do the following
[mScrollView addSubview: navigationController.view];
I'm using UIView transitionFromView to flip between two views. I'm currently doing the following in a UIView subclass:
UIImageView *imgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"img.png"]];
imgView.frame = CGRectMake(0, 0, 100, 100);
UIView *detailView = [[UIView alloc] initWithFrame:imgView.frame];
detailView.backgroundColor = [UIColor redColor];
detailView.frame = imgView.frame;
[self addSubview:imgView];
[UIView transitionFromView:imgView toView:detailView duration:1.0
options:UIViewAnimationOptionTransitionFlipFromLeft
completion:^(BOOL finished){
}
];
This works as expected. The transition performs as it should. The issue is that I need the transition to take place in a subview of the view that the previous code is contained within. So, I put everything in a container and try to animate that:
UIImageView *imgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"img.png"]];
imgView.frame = CGRectMake(0, 0, 100, 100);
UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 500, 500)];
UIView *detailView = [[UIView alloc] initWithFrame:imgView.frame];
detailView.backgroundColor = [UIColor redColor];
detailView.frame = imgView.frame;
[container addSubview:imgView];
[self addSubview:container];
[UIView transitionFromView:imgView toView:detailView duration:1.0
options:UIViewAnimationOptionTransitionFlipFromLeft
completion:^(BOOL finished){
}
];
But in this case, the animation doesn't run. Instead, I only see the final result without the transition. Can anyone help me figure out how the two cases differ?
The same problem is described here, but I don't feel the existing 'solution' is sufficient to fully describe this behavior.
Transition behavior using transitionFromView and transitionWithView
Consider delaying the animation to another run loop, using dispatch_after and performSelector:withObject:afterDelay:
or use [CATransaction flush] after you add the subviews
More info at http://andrewmarinov.com/working-with-uiviews-transition-animations/
I don't know why the first one works, but this is not the correct way to use this method. The view being transitioned away from will be removed from the hierarchy and the view being transitioned to will be added as part of the animation. So skip adding detailView (or use the UIViewAnimationOptionShowHideTransitionViews option.