I'm working on an iPad app in a split view controller where the app will remain in landscape the entire time. I would like the root view controller to remain a list and the detail view controller to swap out 4 different views controlled by a UISegmentedControl.
I'm following this post here UISegmentedControl Best Practice, however when I swap in my view controllers, they don't properly fit in the detailview controller, they are cut off as if they are trying to draw for ipad portrait orientation.
If I completely ignore the segmented control approach and have a detail view, the view size properly in the detail view, but once i try to swap them in with a segmented control is where I run into trouble.
Is there a way to tell the swapped in views to draw correctly?
Have you tried:
swappedInView.frame = detailController.view.bounds;
when you call
[detailedController.view addSubview:swappedInView];
?
Their contents need to have their resizing behaviors (most easily in xcode/IB) set appropriately.
I am using a UISegmentControl as well, but adding my views programmatically. I have my default view (segment 0) loaded first in the viewDidLoad of the rootController. Then based on which segment is pressed, I check if the view has been initialized, if not, initialize, then add it as a subview. Then remove the other view. I had a similar post on this on how to keep track of it that might help you out, and has the code from Beginning iPhone 4 Development book that I used for my own app. Here's the code snippet to get you started if you want to go this approach:
if (self.yellowViewController.view.superview == nil)
{
if (self.yellowViewController == nil)
{
YellowViewController *yellowController =
[[YellowViewController alloc] initWithNibName:#"YellowView"
bundle:nil];
self.yellowViewController = yellowController;
[yellowController release];
}
[blueViewController.view removeFromSuperview];
[self.view insertSubview:yellowViewController.view atIndex:0];
}
else
{
if (self.blueViewController == nil)
{
BlueViewController *blueController =
[[BlueViewController alloc] initWithNibName:#"BlueView"
bundle:nil];
self.blueViewController = blueController;
[blueController release];
}
[yellowViewController.view removeFromSuperview];
[self.view insertSubview:blueViewController.view atIndex:0];
}
In my own, I add as a subview, instead of inserting it behind the other views (they had a toolbar in the front in their example). So if say segment 3 was pressed, then I would check the other views if their superviews were present, remove that view, add my view. Hope that helps.
Related
I have Two different UITableView with two Navigation Controller.
I want to display one of them after touching a UIButton in first Table.
In iPhone I use following code
SecondNavigationController second = [SecondNavigationController new];
[self presentModalViewController:second animated:YES];
Note that first is first TableViewController; And second navigation controller it self initiate a UITableView and display it using following code in it's ViewDidLoad method.
SecondTableViewController *root = [SecondTableViewController new];
[self pushViewController:root animated:NO];
Note that first TableView uses application root view controller in iPhone to display it!
And it perfectly works.
In iPad, on the other hand, I use a splitViewController which shows first table view on the left side screen.
I want to show second TableView in the left side too. But above code is not working perfectly. It covers all of iPad screen.
How can I show second UITableView
You need a conditional check which does (pseudo code):
If iPhone
Run current logic
Else
Create a second view controller and push to self.navigationController
I understand how to implement UISwipeGestureRecognizer, but I do not understand how to use multiple views properly in collaboration with it.
My ultimate goal is to provide a sleek interface where buttons or swiping may be used to change views. I am hoping for a constant background rather than a background image show it is transferring to the exact same image again. I am using storyboarding currently where each view has its own controller, and I would like (if possible) to keep it as close to this format for visual clarity of what is going on.
I have read that subviews may be my best hope for this sort of scenario (keeping them to the right until a swipe is called), but that would break up the current storyboarding structure I am using, and most certainly ruin any visual clarity.
Does anyone have any suggestions?
I did same programmatically, but you can achieve same using storyboard
1. You need base view which will keep same background
2. Add 3 Views (or 2 depending on ur requirement) Left, Middle, Right with transparent backgrounds as follows in viewDidLoad of base view controller
[self addChildViewController:myChildViewController];
[myChildViewController view].frame = CGMakeRect(x,y,width,height);//Left one will have x = -320, y=0 ,Middle x= 0, y= 0, Right x = 32O etc.
/* Add new view to source view */
[self.view addSubview:[myChildViewController view]];
/* Inform 'didMoveToParentViewController' to newly added view controller */
[myChildViewController didMoveToParentViewController:self];
3. In handle Swipe method change frames of view with animation which will make it look like swiping page
e.g
//swipe left, get right view in middle
[UIView animateWithDuration:0.2 animations:^{
CGRect frame = rightViewController.view.frame;
frame.origin.x = 0;
frame.origin.y = 0;
rightViewController.view.frame = frame;
CGRect middleViewFrame = middleViewController.view.frame;
middleViewFrame.origin.x = -320;
middleViewController.view.frame = middleViewFrame;
}];
You could use a navigation to do this. If you don't want the navigation bar, you can hide it. You can connect the left swipe gesture recognizer to a segue to the next controller, and connect the right swipe gesture recognizer to an unwind segue (or call popViewControllerAnimated: from its action method). If you want a constant background, then you need to add that to the navigation controller's view (as a background color), and have the child view controller's views be transparent (or partially so). This code in the navigation controller's root view controller will add the background:
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationController.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"img.tiff"]];
}
I know exactly what you're talking about and I'm actually doing the same with my current project.
I accomplished this by using Interface Builder and a single view controller. Basically I placed a UIImageView in the view and set it to the background you wish, then I put a transparent UIScrollView on top of it. Inside that scroll view I put the two views I want to scroll horizontally through.
Don't forget to enable UIScrollView paging. In my case, I had two table views. Starting from the first one, if you swiped from right to left it would scroll to the next table view, and if you swiped left to right it would scroll back to the first.
I have a split view controller within a navigation controller and I want to put a DejalActivityView over everything it when I'm doing certain operations. Right now I'm using the following code:
- (void)showActivityView
{
UIView *viewToUse = [MSMasterViewController get].splitViewController.navigationController.view;
[DejalBezelActivityView activityViewForView:viewToUse];
[DejalActivityView currentActivityView].showNetworkActivityIndicator = YES;
}
This works in landscape mode, but when in portrait mode with the master view in popover form, the dejal activity view appears behind the popover. Is there a better view to use that will cover the whole screen?
Maybe you could use your Window as Superview, and only change relativ Frame positing.
greetings Oli
I've been struggling with this for quite a while now.
I have to implement an user profile similar to what Instagram has in their ios app.
When clicking on the first to buttons on that tab bar like thing all the contents downwards from it changes. The tableview that is displayed on the bottom part has dynamic size so they keep account of that also.
I have something implemented where the top part is a UIView with 5 buttons and based on them the bottom part (witch is like a container view) changes content. And these two (top uiview and bottom container view) are part of UIScrollView. But this way I can't get information back in time on the size about the tableview's size that I want to display in the bottom part in order to modify the UIScrollView's size. And I have a feeling this is a flawed way to do it.
I would really appreciate any ideas oh how to implement this king of interaction. Thank you.
I believe it's a headerView on a UITableView or a UICollectionView, depending on which view mode you have selected. When you tap one of the buttons it changes out the UITableView to a UICollectionView or vice versa.
You want to keep track of the current contentOffset for whichever is being displayed (UICollectionView and UITableView are both subclasses of UIScrollView so you will be able to get this from both) and then set the contentOffset on the view you're switching to.
Setup an ivar for the UIView header subclass so you can easily re-use it.
This is what I have. My problem is that I'm mot getting back in useful time the tableview's frame height from the tableview controller to the UserProfileViewController in order to change the latter's scrollview size. I also feel that I'm somehow doing this backwards so any suggestions are more than welcome.
This view has two parts: an upper part and a lower part. The parent view is a scroll view. What I wanted to achieve with this is having a sort of tab bar in the upper part that will controll waht will appear in the lower part.
The upper part has a flip animation when the upper left button is pressed to reveal another view.
The way this is achieved is by having 2 views: a dummy view and the back view. The dummy view has the front view as a child. The front view is the one that containes all the buttons.
The code for this animation is achieved in this way:
- (IBAction)infoButtonPressed:(id)sender
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.hoverView cache:YES];
if ([self.headerView superview]) {
[self.headerView removeFromSuperview];
[self.hoverView addSubview:self.backOfHeaderView];
[self.infoButton removeFromSuperview];
[self.backOfHeaderView addSubview:self.infoButton];
} else {
[self.backOfHeaderView removeFromSuperview];
[self.hoverView addSubview:self.headerView];
[self.infoButton removeFromSuperview];
[self.headerView addSubview:self.infoButton];
}
[UIView commitAnimations];
}
The lower part is made out of a container view that acts as a place holder.
When a button is pressed a different view controller is displayed in the container view.
Each view controller has a container view of it's own. The specific view of that view controller (tableview) is added to it's container view when the controller is loaded. It also makes sure that if the tableview is already added to the container view it will be removed. All this is done in each specific view controller.
In the view controller of the User Profile view there is an instance of the container view and one of a UIViewController that also acts as a placeholder(named currentViewController from now on). When a specific button is pressed it checks if the an instance of the view controller that we want to display already exists. If not it will make one and will set it's tableview's frame to the bounds of the container view. After that it will remove the currentViewController's view from the superview and the currentViewController itself from the parent viewcontroller to make sure that if there is something assigned to these they will not be there. Then it goes and assigns the desired viewcontroller to the currentViewController. It also assigns the desired viewcontroller's containerView instance to the containerview in the parent viewcontroller (the User Profile viewcontroller). At the end it will add the desired viewcontroller as a child to the main viewcontroller (the User Profile viewcontroller) and desired viewcontroller's view to the containerView of the main viewcontroller.
This is the code for one of the buttons:
//Check if there is an instance of the viewcontroller we want to display. If not make one and set it's tableview frame to the container's view bounds
if(!_userWallViewController) {
self.userWallViewController = [[WallViewController alloc] init];
// self.userWallViewController.activityFeedTableView.frame = self.containerView.bounds;
}
[self.userWallViewController.containerView addSubview:self.userWallViewController.activityFeedTableView];
//If the currentviewcontroller adn it's view are already added to the hierarchy remove them
[self.currentViewController.view removeFromSuperview];
[self.currentViewController removeFromParentViewController];
//Add the desired viewcontroller to the currentviewcontroller
self.currentViewController = self.userWallViewController;
//Pass the data needed for the desired viewcontroller to it's instances
self.userWallViewController.searchURLString = [NSString stringWithFormat:#"event/user/%#/", self.userID];
self.userWallViewController.sendCommentURLString = [NSString stringWithFormat:#"event/message/%#", self.userID];
self.userWallViewController.totalCellHeight = ^(float totalCellHeight){
self.userWallViewController.numberOfCells = ^(float numberOfCells){
NSLog(#"The total number of cells: %f", numberOfCells);
NSLog(#"The total cell height: %f", totalCellHeight);
self.scrollView.contentSize = CGSizeMake(320.0, totalCellHeight + 172.0 + 33.0);
CGRect newFrame = self.userWallViewController.containerView.frame;
newFrame.size.height = totalCellHeight + 33.0;
self.userWallViewController.containerView.frame = newFrame;
NSLog(#"Container view: %f", self.containerView.frame.size.height);
NSLog(#"Scroll view: %f",self.scrollView.contentSize.height );
};
};
//Add this containerview to the desired viewcontroller's containerView
self.userWallViewController.containerView = self.containerView;
//Add the needed viewcontroller and view to the parent viewcontroller and the containerview
[self addChildViewController:self.userWallViewController];
[self.containerView addSubview:self.userWallViewController.view];
[self performSelector:#selector(changeScrollView) withObject:self afterDelay:0.5];
//CLEAN UP THE CONTAINER VIEW BY REMOVING THE PREVIOUS ADDED TABLE VIEWS
[self.userFansViewController.userSimpleTableView removeFromSuperview];
[self.fanOfViewController.userSimpleTableView removeFromSuperview];
[self.userPublishedMovellaListViewController.gridView removeFromSuperview];
[self.userPublishedMovellaListViewController removeFromParentViewController];
self.userPublishedMovellaListViewController = nil;
}
I know this answer is over a year late, but I wanted to state my hypothesis on it...just incase it might help someone else later. Im implementing a similar view and came to this conclusion. Anyone is welcomed to correct me if I'm wrong.
I think that perhaps the top view is a header view and the two options that seem like a collection view and a table view are both collection views.
Because the layout of collection views can be fine tuned to the most minute details, I think the view that looks like a table view is just a really specifically designed collection view. And when switching between the views, the collection view's data and properties are being swapped and reloaded.
I have a container view controller that consists of a navigation view at top, and a content view for the remainder of the screen. The navigation menu consists of several buttons, some of which present a popover with UITableView for secondary navigation. This all worked until I assigned a child view controller and set it's view as subview of the content view. Now, the popover appears, but has nothing inside it (no tableview, just black).
Why is this?
Here's the code I added for the child vc in container view:
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
ContentWebViewController *initialVC = [[ContentWebViewController alloc] init];
[self addChildViewController:initialVC];
initialVC.view.frame = self.view.bounds;
[self.containerView addSubview:initialVC.view];
self.currentController = initial;
}
See the screenshot below. I added a vc with a simple webview showing google (just as a placeholder for now). The popover was working fine before I assigned the child VC.
Maybe it will help other in other cases -
If you are using size classes (probably you are since you are developing this to iPad) -
Design your popover view controller in Any-Any size and it should be OK - after that you can return to your wanted size.
(You can also uninstall the size classes of any object in that view controller instead of redesign the VC)
I somehow (don't ask me how) changed the class that my table view controller was inheriting from. It should have been (obviously) UITableViewController, but was UITableViewController, so initWithStyle was not being called....