I have a custom UIView and xib called DialPad and I'm trying to use this object in my storyboard, but the custom DialPad isn't being add as a subview with the buttons
my custom DialPad :UIView
#implementation DialPad
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
{
self.backgroundColor = [UIColor clearColor];
}
return self;
}
my custom xib called DialPad
and my view controllers look like this
#import <UIKit/UIKit.h>
#import "DialPad.h"
#interface ViewController : UIViewController
#property (weak, nonatomic) IBOutlet UIView *dial;
#end
#import "ViewController.h"
#interface ViewController ()
{
DialPad *d;
}
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
d = [[DialPad alloc] initWithFrame:self.dial.frame];
[self.dial addSubview:d];
}
#end
and my storyboard
but the border around the view looks strange
#import "DialPad.h"
#import <QuartzCore/QuartzCore.h>
#implementation DialPad
- (void)drawRect:(CGRect)rect
{
// Drawing code
self.layer.borderColor = [UIColor redColor].CGColor;
self.layer.borderWidth = 1;
}
#end
For loading a view from xib file, you should do this:
d = [[[NSBundle mainBundle] loadNibNamed:#"DialPad" owner:nil options:nil]
firstObject];
[self.dial addSubview:d];
Border: try to add border code in - (void)awakeFromNib
Related
I have two UIViewController class with names : (RootViewController & SecondViewController).
I have one UIButton Outlet in my SecondViewController.now I want give action method to my UIButton in RootViewController.but I don't know about it.
please guide me and tell me how to get my UIButton in another View and give action method on it in another View....
I'm not sure why you are doing this, it doesn't look good.
Anyway, here's the way.
SecondViewController.h
#interface SecondViewcontroller:UIViewController
#property (nonatomic, weak) IBOutlet UIButton *theButton;
#end
RootViewController.m
SecondViewContoller * sv = [[SecondViewController alloc] init];
[sv.theButton addTarget:self action:#selector(buttonHandler:) forControlEvents:UIControlEventTouchUpInside];
You have to removeTarget when you've done with the button.
Why don't you use delegate or block callback?
ADDED
delegate
SecondViewController.h
#protocol SecondViewControllerDelegate <NSObject>
- (void)theButtonPressed;
#end
#interface SecondViewController : UIViewController
#property (nonatomic, strong) id<SecondViewControllerDelegate>delegate;
#end
SecondViewController.m
#interface SecondViewController ()
{
UIButton *theButton;
}
#end
#implementation SecondViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[theButton addTarget:self.delegate action:#selector(theButtonPressed) forControlEvents:UIControlEventTouchUpInside];
}
#end
RootViewcontroller.h
#interface RootViewController : UIViewController <SecondViewControllerDelegate>
#end
RootViewController.m
SecondViewController *sv = [[SecondViewController alloc] init];
[sv setDelegate:self];
and
- (void)theButtonPressed
{
}
block
SecondViewController.h
typedef void(^TheButtonTouched)(void);
#interface SecondViewController : UIViewController
- (void)addButtonEvent:(TheButtonTouched)event;
#end
SecondViewController.m
#interface SecondViewController ()
{
UIButton *theButton;
TheButtonTouched buttonBlock;
}
#end
#implementation SecondViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// button alloc init here and..
[theButton addTarget:self action:#selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside];
}
- (void)buttonEvent:(UIButton *)sender
{
if(buttonBlock)
{
buttonBlock();
}
}
- (void)addButtonEvent:(TheButtonTouched)event
{
buttonBlock = event;
}
#end
RootViewController.m
SecondViewController *sv = [[SecondViewController alloc] init];
[sv addButtonEvent:^{
// ADD SOMTHING HERE
}];
You need to create the button's iboutlet property.
Than using object of secondclass.button name you can assign selector.
[classobjectname..btnname addTarget:objectname.class action:#selector(objectname.methodname:);
Just Create RootViewController 's Object and passed into target parameter.
e.g.
[btnShow addTarget:self.rootCtrlObj action:#selector(viewPhoto_click:)
forControlEvents:UIControlEventTouchUpInside];
where rootCtrlObj is #property inside SecondViewController.h file
and when you push this controller in RootViewController you have to pass reference of RootViewController .
For Example,
secVCObj.rootCtrlObj = self;
[self.navigationController pushViewController:secVCObj animated:YES];
as i said custom delegate methods will work perfect for these cases,
in SecondViewController.h file define a custom delegate method like below
#import <UIKit/UIKit.h>
#import "ViewController.h"
#protocol SecondControllerDelegate<NSObject>
- (void)someActionToPerformInRootController;
#end
#interface SecondViewController : UIViewController
#property (nonatomic, assign) id<SecondControllerDelegate>delegate; //declare a custom delegate
#end
in SecondViewController.m file lets take an action of some button
- (IBAction)myButtonActionMethod:(id)sender
{
if([self.delegate respondsToSelector:#selector(someActionToPerformInRootController)])
{
[self.delegate someActionToPerformInRootController]; //this will call the delegate method in first view conroller( root view controller) //do what ever u want t do in the action method of rootviewcontroller
}
}
in RootViewController.h file
#import "SecondViewController.h"
#interface RootViewController : UIViewController < SecondControllerDelegate> //confirmas to delegate
in RootViewController.m while presenting the SecondViewController set the delegate to self
- (IBAction)showAction:(id)sender
{
SecondViewController *secondController = [[SecondViewController alloc]initWithNibName:#"SecondViewController" bundle:nil];
secondController.delegate = self; //call back to this controller
[self presentViewController:secondController animated:YES completion:nil];
}
//this method called from the secondViewcontroller
- (void) someActionToPerformInRootController
{
NSLog(#"perform action in root view controller");
}
I have a quick question I was hoping you guys could help me answer. Right now I have a UIPageControl in a storyboard which changes an image depending on what dot you are on, however, as of now you have to press on the dot to change through the dots/images, how can I change through the images/dots by swiping?
Here is my code for my .h
#import <UIKit/UIKit.h>
#interface PageViewController : UIViewController
#property (strong, nonatomic) IBOutlet UIImageView *dssview;
- (IBAction)changephoto:(UIPageControl *)sender;
#end
Here is my code for my .m
#import "PageViewController.h"
#interface PageViewController ()
#end
#implementation PageViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)changephoto:(UIPageControl *)sender {
_dssview.image = [UIImage imageNamed:
[NSString stringWithFormat:#"%d.jpg",sender.currentPage+1]];
}
#end
Any help would be greatly appreciated.
Thanks
You can add UISwipeGestureRecognizer to your view and in the selector method of UISwipeGestureRecognizer based on the direction update the UIPageControl object, either increment the current page or decrement.
You can refer the below code.
Adding swipe gesture to the view controller
UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(swipe:)];
swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:swipeLeft];
UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(swipe:)];
swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swipeRight];
Swipe gesture selector
- (void)swipe:(UISwipeGestureRecognizer *)swipeRecogniser
{
if ([swipeRecogniser direction] == UISwipeGestureRecognizerDirectionLeft)
{
self.pageControl.currentPage -=1;
}
else if ([swipeRecogniser direction] == UISwipeGestureRecognizerDirectionRight)
{
self.pageControl.currentPage +=1;
}
_dssview.image = [UIImage imageNamed:
[NSString stringWithFormat:#"%d.jpg",self.pageControl.currentPage]];
}
Add an outlet to the UIPageControl in the .h file
#interface PageViewController : UIViewController
#property (strong, nonatomic) IBOutlet UIImageView *dssview;
#property (strong, nonatomic) IBOutlet UIPageControl *pageControl;
- (IBAction)changephoto:(UIPageControl *)sender;
#end
i´ve got a uiview in a scrollview which is in a viewcontroller and it seems that the delegates are not called because i added them to the uiview.
Is it possible to solve this problem? (I want to keep the delegates in the uiview because it seems to be cleaner code)
Maik
EDIT:
in .h file:
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#interface RHCHuntingReportViewPageTwo : UIView <MKMapViewDelegate>
#property (weak, nonatomic) IBOutlet MKMapView *mapView;
#end
in .m file:
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
MKAnnotationView *pin=[[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"current"];
pin.image = [UIImage imageNamed:#"map_pin.png"];
pin.draggable = NO;
pin.canShowCallout = YES;
return pin;
}
I added the delegate and outlet correctly in storyboard.
edit 2:
in .m file:
- (id)initWithCoder:(NSCoder *)aDecoder {
self = [super initWithCoder:aDecoder];
if (self) {
RHCAnnotation *annotation = [[RHCAnnotation alloc] init];
annotation.title = #"title";
annotation.subtitle = #"subtitle";
annotation.image = [UIImage imageNamed:#"map_tipp.png"];
annotation.coordinate = CLLocationCoordinate2DMake(57.242465, 2.533579);
mapView.region = MKCoordinateRegionMakeWithDistance(annotation.coordinate, 250, 250);
[mapView addAnnotation:annotation];
}
return self;
}
Working over storyboard.
I've created View Controller (storyboard) and then in middle of content added subview from xib file.
I want to add xib (UIView) like as subview into ViewController and send object with data and print that data into label but I don't know how.
Here is my code.
ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController {
UIView *subView;
}
#property (strong, nonatomic) IBOutlet UIView *subView; //connected over IB
#end
ViewController.m
#import "OfferViewController.h"
#import "OfferLocation.h"
#interface OfferViewController ()
#end
#implementation OfferViewController
#synthesize subView;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
OfferLocation *location = [[OfferLocation alloc] initWithFrame:CGRectZero];
[self.subView addSubview:location];
}
...
#end
and here is subview:
OfferLocation.h
#import <UIKit/UIKit.h>
#interface OfferLocation : UIView{
UIView *view;
UILabel *locationLabel;// here is that label taht I want to print into
}
#property (nonatomic, retain) IBOutlet UIView *view;// connected over IB
#property (nonatomic, retain) IBOutlet UILabel *locationLabel;
#end
OfferLocation.m
#import "OfferLocation.h"
#implementation OfferLocation
#synthesize view, locationLabel;
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
{
locationLabel.text = #"some text"; //this is not working
NSArray *subviewArray = [[NSBundle mainBundle] loadNibNamed:#"OfferLocation" owner:self options:nil];
UIView *tempView = [subviewArray objectAtIndex:0];
[self addSubview:tempView];
}
return self;
}
subView never seems to be initialized and loaded to the view or presented. Therefore you cannot see it.
Try calling:
self.view = self.subView // or subView; // or [self.view addSubview:self.subView // or subview];
or something similiar
Then declare a UILabel and initialize it with whatever text you want and add it to subview:
UILabel *label = [[UILabel alloc] initWithString:#"StackOverflow rocks!"];
[self.subView addSubview:label];
// or [self.view addSubview:label];
Differing on how you set subView.
What is this data you want to set on label's text? If it is a data type use the specifiers in the string.
%i // for int
%# // for string or object adress
%c // for char
%f // for float
etc...
I have programmatically created a second view controller (MySecondViewController) which was all done and hooked up without using the visual object editor.
My problem is that when I run the app, only the original view controller (HelloWorldViewController) comes up; the second view controller does not show up. When I click on the view for HelloWorldViewController, nothing comes up.
Can you tell me what's wrong?
windowBasedAppAppDelegate.h
#import <UIKit/UIKit.h>
//-- Add a forward reference to the HelloWorldViewController class --
#class HelloWorldViewController;
#interface windowBasedAppAppDelegate : NSObject <UIApplicationDelegate> {
//-- create an instance of the view controller--
HelloWorldViewController *viewController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
//--Expose the view controller as a property--
#property (nonatomic, retain) IBOutlet HelloWorldViewController *viewController;
#end
windowBasedAppAppDelegate.m
#import "windowBasedAppAppDelegate.h"
#import "HelloWorldViewController.h"
#import "MySecondViewController.h"
#implementation windowBasedAppAppDelegate
#synthesize window;
#synthesize viewController;
//-- a second view controller object--
MySecondViewController *mySecondViewController;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
//-- add the new view to the current window--
//-- instantiate the second view controller --
mySecondViewController = [[MySecondViewController alloc]
initWithNibName:nil
bundle:nil];
// -- add the view from the second controller --
//[window addSubview:mySecondViewController.view];
[window addSubview:viewController.view];
[self.window makeKeyAndVisible];
return YES;
}
- (void)dealloc
{
[MySecondViewController release];
[viewController release];
[window release];
[super dealloc];
}
#end
MySecondViewController.h
#import <UIKit/UIKit.h>
#interface MySecondViewController : UIViewController {
//-- create two outlets, label and button --
UILabel *label;
UIButton *button;
}
//-- expose the outlets as properties --
#property (nonatomic, retain) UILabel *label;
#property (nonatomic, retain) UIButton *button;
// -- declaring the IBAction ---
- (IBAction) buttonClicked: (id)sender;
#end
MySecondViewController.h
#import "MySecondViewController.h"
#implementation MySecondViewController
#synthesize label, button;
- (IBAction) buttonClicked: (id)sender {
UIAlertView *alert =
[[UIAlertView alloc] initWithTitle:#"Action Invoked!" message:#"Button clicked" delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[alert show];
[alert release];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)dealloc
{
[super dealloc];
}
HelloWorldViewController.h
#import <UIKit/UIKit.h>
#interface HelloWorldViewController : UIViewController {
}
#end
HelloWorldViewController.m
import "HelloWorldViewController.h"
#implementation HelloWorldViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)dealloc
{
[super dealloc];
}
Added code from MySecondViewController.m
//-- add the views to the view window --
[self.view addSubview:label];
[self.view addSubview:button];
[view exchangeSubviewAtIndex:1 withSubviewAtIndex:0];
self.view = view;
[super viewDidLoad];
Since the view is being initialized and that it has a proper frame, the problem could be this sequence of code,
[window addSubview:mySecondViewController.view];
[window addSubview:viewController.view];
As the viewController's view will have the same frame, it will be added over mySecondViewController's view. So you will have to remove the second line for the view to show up.
You never actually push the new view controller onto the screen.
mySecondViewController = [[MySecondViewController alloc]
initWithNibName:nil
bundle:nil];
// -- add the view from the second controller --
//[window addSubview:mySecondViewController.view];
[window addSubview:viewController.view];
You add viewController.view, (which should be undefined...), but not mySecondViewController.view.
Also, programHasFinishedLaunching may not be the best possible place to push it. If I were you, I'd put a button on the front page that pushes the new view in, it's easier that way.