I've subclassed UIPickerView to add some a little more functionality(I'm 99% sure it has nothing to do with this question). In drawRect I added a toolbar to make dismissing the toolbar a little easier, the problem is, neither the UIToolbar, or the UIBarButtonItem inside the toolbar receive touches. It's almost as if the view is "invisible" in that the touches are forwarded to the view behind it(a UITableView). I know I could just make a "control" view that holds both the picker an a toolbar. But I just wanted to know if there was any way to do this without creating another view?
Here's my drawRect code:
- (void)drawRect:(CGRect)rect
{
if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
pickerToolbar = [[UIToolbar alloc] initWithFrame: CGRectMake(0, 0, self.frame.size.width, 40)];
UIBarButtonItem *closeButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem: UIBarButtonSystemItemDone target: self.delegate action: closeAction];
[pickerToolbar setItems: [NSArray arrayWithObject: closeButton]];
[self addSubview: pickerToolbar];
}
}
Here's a photo:
Never, never do this. You are adding a new subview every time the picker is drawn!
If your picker view is the input view of a text field, simply create a toolbar and add it as the input accessory view. It will then appear above the picker for you. This is the standard way to achieve this behaviour.
Related
I've requirement to create dynamically some controllers. In the image provided here I've programmatically added an UITextField (name), which hides UITableView.
UITableView is hidden by default. When user touches the UIButton above it, UITableVIew gets appear.
My question when UITableView gets appear, how can I make UITableView top of all other controls?
you will have to change the sequence.
Add UItextfield first
[self.view addSubview:yourTextField];
and add tableview and other views after that line of code so that they appear above it.
[self.view addSubview:yourTableView];
Try
[self.view bringSubviewToFront: yourTableView];
I think this will work fine so please implement this one.
UITextField *txtFld = [[UITextField alloc] initWithFrame:CGRectMake(65, 300, 200, 30)];
txtFld.backgroundColor = [UIColor clearColor];
// Border Style None
[txtFld setBorderStyle:UITextBorderStyleNone];
[txtFld setPlaceholder:#"Name"];
[self.view addSubview:txtFld];
I'm trying to mimic the facebook ios side menu and have it working however the issue I am having is that I cannot send the sidemenu to the back as discussed in another question on SO iphone facebook side menu using objective c. I'm not using the library suggested but instead using the code that was suggested. I have
- (void)viewDidLoad
{
NSLog(#"View Did Load is running");
activitySpinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
activitySpinner.frame = CGRectMake(0.0, 0.0, 40.0, 40.0);
activitySpinner.center = self.view.center;
[self.view addSubview:activitySpinner];
SideMenuView *myDelegate = [[SideMenuView alloc] init];
[self setSideMenuDelegate:myDelegate];
//set the delegate's currentViewController property so that we can add a subview to this View.
[sideMenuDelegate setCurrentViewController:self];
//sideMenu = [[SideMenuView alloc] initWithNibName:#"SideMenuView" bundle:nil];
[self.view addSubview:myDelegate.view];
[self.view sendSubviewToBack:myDelegate.view];
[super viewDidLoad];
self.searchDisplayController.searchBar.scopeButtonTitles = nil;
[self fetchCustomers];
// Do any additional setup after loading the view, typically from a nib.
}
In my controller where I want the side menu but the view seems to get loaded into the current view instead of just going to the back so it can be seen when I slide the menu over.
Can someone help me get the myDelegate view to the back?
I am not entirely sure what you are trying to accomplish, so I have to guess. It sounds like you want to hide myDelegate.view behind self.view. It won't work this way.
sendSubviewToBack: sends the subview to the back of the view hierarchy of the sender, in your case, self.view. It will never send a subview below its superview.
You can instead add myDelegate.view as a subview to self.views superview, and put it behind self.view:
[[self.view superview] insertSubview:myDelegate.view belowSubview:self.view];
I've decided to just go with https://github.com/Inferis/ViewDeck and let that manage the views.
i am trying to implement an action sheet that contains a picker view and a segmented control bar with a previous button, next button and done button like the image as follows http://imgur.com/8wVMy. I currently am able to make it look like this http://imgur.com/AXn6H. I was wondering if someone could help me get the picker view to sit on the bottom and just make it look a little better. Thanks for any help.
Unless you're targeting very old versions of iOS (i.e. versions earlier than 3.2), the best way to do it is to take a completely different approach.
As of 3.2, any UIResponder (which includes all UIViews) can return a UIView from its inputView property to show that view instead of the keyboard when the view becomes the first responder. This even works for views that normally don't become first responder or don't display the keyboard at all. It's simple:
Design your popup view, as you would any other view.
Ensure that your widget view returns YES from canBecomeFirstResponder.
Ensure that your widget view returns an instance of your popup view from inputView.
More details are available in the documentation.
Also, BTW, if you're on an iPad you should probably use a UIPopoverController to display a UIPickerView instead of either of these methods. Apple may actually require this if you intend to get your app in the app store.
The next and previous buttons are actually showing your images to segmentedController Within a toolbar. To get it You have to define the segmentedController and UIToolbar on. H. Next add the DataSource and UIPickerView
Then in the viewDidLoad create objects and define Their properties. For example:
if (keyboardToolbar == nil) {
keyboardToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 44)];
[keyboardToolbar setBarStyle:UIBarStyleBlackTranslucent];
segControl = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:#"Anterior", #"Siguiente", nil]];
[segControl setSegmentedControlStyle:UISegmentedControlStyleBar];
[segControl setTintColor:[UIColor blackColor]];
segControl.frame = CGRectMake(5, 7, 150, 33);
segControl.momentary = YES;
[segControl addTarget:self action:#selector(segSelected:) forControlEvents:UIControlEventValueChanged];
UIBarButtonItem *extraSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem *aceptar = [[UIBarButtonItem alloc] initWithTitle:#"Hecho" style:UIBarButtonItemStyleDone target:self action:#selector(cerrarTeclado:)];
//aceptar.width = 70.0f;
[keyboardToolbar setItems:[[NSArray alloc] initWithObjects: extraSpace, aceptar, nil]];
[keyboardToolbar addSubview:segControl];
}
In the iPhone maps app there's a toolbar at the bottom of the map view (it contains the Search/Directions segment control and others). When moving from the map view by clicking on a callout, the toolbar slides out with the map view, leaving the next view (a table controller) with no toolbar.
I've tried to do the same thing with [self.navigationController setToolbarHidden:YES animated:YES] in the second view controller, but this gives a strange toolbar sliding down animation, while the map view is sliding to the left.
Using [self.navigationController setToolbarHidden:YES] in viewDidLoad also causes a bad effect (it makes the toolbar disappear the moment the push animation starts, leaving an ugly white space).
I'm assuming the answer to this is to use a nib file, but I'd prefer to do it programatically (if possible).
How can I get the toolbar to "stick" to the map view and slide out with it when I push a new view controller? Thanks.
Gourmet Haus Staudt http://img.skitch.com/20100518-xfubyriig48d3ckaemjg2ay8q.jpg
It turns out the answer is to create the toolbar directly and add it to the view yourself. This is in the code for a UIViewController with a UINavigationController. The frame coordinates can change according to what is on screen.
- (void)viewDidLoad
{
// Add a toolbar to the view
CGRect toolbarFrame = CGRectMake(0, 372, 320, 44);
UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:toolbarFrame];
UIBarButtonItem *compassButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"compass.png"]
style:UIBarButtonItemStyleBordered
target:self
action:#selector(zoomToCurrentLocation)];
compassButton.width = 30.0f; // make the button a square shape
[myToolbar setItems:[NSArray arrayWithObject:compassButton] animated:NO];
[compassButton release];
[self.view addSubview:myToolbar];
[super viewDidLoad];
}
I was around this for a day once. Really dont get the programatically answer, but the best way to views to behave correctly, is to do the interface in the interface builder. If you set items for a toolbar in your code like:
[self.navigationController setToolbarItems: control1, control2,..., nil] animated: NO];
with my little experience, I can say that you are saying to the entire application to have a toolbar present when you push new views unless you hide it (or you are using a tabBar), but hiding it you get those unwanted effects.
You can try this:
[self.navigationController setToolbarHidden:YES animated:YES];
in your first controller - (void)viewWillDisappear:(BOOL)animated method,
and setting hidden to NO in - (void)viewWillAppear:(BOOL)animated method in the first controller too.
Hope this helps.
PS: And if you get the programatically answer, let me know! =P
Override the second view controller's -viewWillAppear: method to hide the toolbar.
I have a core data application which uses a navigation controller to drill down to a detail view and then if you edit one of the rows of data in the detail view you get taken to an Edit View for the that single line, like in Apples CoreDataBooks example (except CoreDataBooks only uses a UITextField on its own, not one which is a subview of UITableViewCell like mine)!
The edit view is a UITableviewController which creates its table with a single section single row and a UITextfield in the cell, programatically.
What I want to happen is when you select a row to edit and the edit view is pushed onto the nav stack and the edit view is animated moving across the screen, I want the textfield to be selected as firstResponder so that the keyboard is already showing as the view moves across the screen to take position. Like in the Contacts app or in the CoreDataBooks App.
I currently have the following code in my app which causes the view to load and then you see the keyboard appear (which isn't what I want, I want the keyboard to already be there)
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
[theTextField becomeFirstResponder];
}
You can't put this in -viewWillAppear as the textfield hasn't been created yet so theTextField is nil. In the CoreDataBooks App where they achieve what i want they load their view from a nib so they use the same code but in -viewWillAppear as the textfield has already been created!
Is there anyway of getting around this without creating a nib, I want to keep the implementation programatic to enable greater flexibility.
Many Thanks
After speaking with the Apple Dev Support Team, I have an answer!
What you need to do is to create an offscreen UITextField in -(void)loadView; and then set it as first responder then on the viewDidLoad method you can set the UITextField in the UITableViewCell to be first responder. Heres some example code (remember I'm doing this in a UITableViewController so I am creating the tableview as well!
- (void)loadView
{
[super loadView];
//Set the view up.
UIView *theView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.view = theView;
[theView release];
//Create an negatively sized or offscreen textfield
UITextField *hiddenField = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, -10, -10)];
hiddenTextField = hiddenField;
[self.view addSubview:hiddenTextField];
[hiddenField release];
//Create the tableview
UITableView *theTableView = [[UITableView alloc] initWithFrame:[[UIScreen mainScreen] bounds] style:UITableViewStyleGrouped];
theTableView.delegate = self;
theTableView.dataSource = self;
[self.view addSubview:theTableView];
[theTableView release];
//Set the hiddenTextField to become first responder
[hiddenTextField becomeFirstResponder];
//Background for a grouped tableview
self.view.backgroundColor = [UIColor groupTableViewBackgroundColor];
}
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
//Now the the UITableViewCells UITextField has loaded you can set that as first responder
[theTextField becomeFirstResponder];
}
I hope this helps anyone stuck in the same position as me!
If anyone else can see a better way to do this please say.
Try do it in viewDidAppear method, works for me.
I think the obvious solution is to create the textfield in the init method of the view controller. That is usually where you configure the view because a view controller does require a populated view property.
Then you can set the textfield as first responder in viewWillAppear and the keyboard should be visible as the view slides in.
have you tried using the uinavigationcontroller delegate methods?:
navigationController:willShowViewController:animated: