I want to close the keyboard, when a user do a single tap on uitextview and when he is in edit mode. Does anyone know how to do that?
touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event is not fired.
I can't use the textViewDidBeginEditing though.
Have included UITextViewDelegate in my header file. In .m file, I have set the delegate as self.textView.delegate = self and below is the code to capture touch event
- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[super touchesBegan:touches withEvent:event];
if([self.textView isFirstResponder])
{
[self.textView resignFirstResponder];
}
}
But it is not getting called by the textView I am using.
When using Pinch and touch events you have to initialize the touch event. I can't remember of the top of my head but it is something like
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:nil];
tap.numberOfTapsRequired = 1;
put this in your viewDidLoad and then touchesBegan should get called when you tap the screen, Oh don't forget to add the (tapGesture) to the view like so
[self.view addGestureRecognizer:tapGesture];
Hope this helps.
Related
New to xcode,i'm creating a simple login form in xcode 4.2 and i would like to hide the keyboard,i have the correct code i think,from the tutorial it says i need to change the class of the view to UIControl but there is no option for this, is there another way when working with storyboards?
- (IBAction)backGroundTouched:(id)sender
{
[emailTextField resignFirstResponder];
[passTextField resignFirstResponder];
}
Assuming you are doing them inside the viewCotroller, invoke
[self.view endEditing:YES];
If your two text fields are subviews of some higher-level view you can also use [higherLevelView endEditing]; and not care which subview is currently active.
Make sure your both text fields is connect with it's IBOutlets.
No need to change UIView to UIControl.
// Connect every textfield's "Did end on exit" event with this method.
-(IBAction)textFieldReturn:(id)sender
{
[sender resignFirstResponder];
}
// Use this method also if you want to hide keyboard when user touch in background
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[emailTextField resignFirstResponder];
[passTextField resignFirstResponder];
}
I followed this tutorial: http://www.techotopia.com/index.php/Writing_iOS_7_Code_to_Hide_the_Keyboard and it's working for me:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
if ([_textField isFirstResponder] && [touch view] != _textField) {
[_textField resignFirstResponder];
}
[super touchesBegan:touches withEvent:event];
}
I'm trying to implement a uitableview that its rows can be dragged to right and left (and show something behind them).
The code works fine, I've implemented it using the following methods:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;
My problem is that the rows also contain UIButtons that when clicking them- should be clicked but when dragging - should drag the entire cell.
I've found this solution. Basically to bubble up the events when clicking on the UIButtons:
[super touchesBegan:touches withEvent:event];
[self.nextResponder touchesBegan:touches withEvent:event];
But, it seems taht the event touchesMoved only bubbles once.
I've seen all sort of questions in this area. Example. But I don't see any solution or responses.
Any help, suggestion or creative workaround would be appreciated!
Instead of implementing touchesBegan, etc. why not use a UIPanGestureRecognizer? I tested this with just a simple rectangular view which was mostly covered by a UIButton. The view was dragged, no matter where I touched, and the button method fired if I clicked over the button.
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(handlePanGesture:)];
[self.theView addGestureRecognizer:panGesture]; //theView is IBOutlet for small view containing a button
}
-(void)viewDidAppear:(BOOL)animated {
self.currentViewFrame = self.theView.frame;
}
- (IBAction)handlePanGesture:(UIPanGestureRecognizer *)sender {
CGPoint translate = [sender translationInView:self.view];
CGRect newFrame = self.currentViewFrame;
newFrame.origin.x += translate.x;
newFrame.origin.y += translate.y;
sender.view.frame = newFrame;
if (sender.state == UIGestureRecognizerStateEnded)
self.currentViewFrame = newFrame;
}
-(IBAction)doClick:(id)sender {
NSLog(#"click");
}
Just check to see which one was touched using the tag system.
In my app delegate, I made sure I have the line:
[glView setMultipleTouchEnabled: YES];
And I have a simple layer meant only to figure out how multi touch works. The .mm file looks like:
#import "TestLayer.h"
#implementation TestLayer
-(id) init
{
if( (self=[super init])) {
[[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:0 swallowsTouches:YES];
}
return self;
}
-(void) draw{
[super draw];
glColor4f(1.0, 0.0, 0.0, 0.35);
glLineWidth(6.0f);
ccDrawCircle(ccp(500,500), 250,CC_DEGREES_TO_RADIANS(360), 60,YES);
}
-(void) ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
NSLog(#"got some touches");
}
-(void) ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
NSLog(#"some touches moved.");
}
-(BOOL) ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event
{
NSLog(#"a touch began");
return FALSE;
}
#end
When I touch the screen, I always see "a touch began", but no matter how I touch it (simulator or actual device), I never see "some touches moved" or "got some touches".
Is there something further I need to do to make multi touch work?
Specifically, I'm just trying to do basic pinch-to-zoom functionality... I heard there is some sort of gesture recognizer for iPhone...does it work for Coco2ds? Would it work even if I can't get simple multi touch events to fire?
UIGestureRecognizers absolutely work for Cocos2D, I personally used them, you just need to add them to the correct view by using:
[[[CCDirector sharedDirector] openGLView] addGestureRecognizer:myGestureRecognizer];
Regarding your touches, I guess you enabled them for the scene you are working in?
scene.isTouchEnabled = YES;
In any case you shouldn't use the addTargetDelegate method, take a look here
add self.isTouchEnabled = YES; to your init
and for the gesture recognizers look at the other answer
I have add a view with button as a subview to MKAnnotationView
CCBigBubleViewController* buble = [[CCBigBubleViewController alloc] init];
[annotationView addSubView:buble.view];
It is shown perfectly, but the button does't respond to tapping.
In your implementation of MKAnnotationView, override the hitTest method:
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
if (CGRectContainsPoint(_button.frame, point)) {
return _button;
}
return [super hitTest:point withEvent:event];
}
Your button will then receive touch events.
your annotationView has probably not the right size. Out of it's frame subviews dont respond to touches. For testing this you can clip to bounds.
So make sure your button is inside the frame of your AnnotationView, perhaps sizeToFit will help here.
you will have to create button action in coding like this
[buttonInstance addTarget:self action:#selector(youraction:) forControlEvents:UIControlEventTouchUpInside];
I'm making an UISearchBar option in the navigationbar of my app.
My app consists of multiple views and subviews.
I have this mainview which has 3 other views on himself. one of it is empty (for now) the other 2 have tableviews on them.
I want my keyboard to show when I'm searching and hide when i'm doing the actual search or when i touch/click outside the uisearchbar.
Im using the searchbardelegate as is required.
Im able to hide the keyboard using [searchBar resignFirstResponder] in the following ways.
When im pressing the return key.
When i cancel search manually
When i press any of the keyboard buttons to search or cancel.
When i touch an empty part of the screen using
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
if ([mySearchBar isFirstResponder] && [touch view] != mySearchBar) {
[mySearchBar resignFirstResponder];
}
[super touchesBegan:touches withEvent:event];
}
What i not seem to be able to do is make it respond to touching one of my 2 tableviews. Or when im refilling the mainview to contain something different entirely.
Ive tried changing the touchesbegan method to resign the searchbar when touching the tableviews but it hasnt worked so far.
I've tried several other things found by my dear friend mr. google, but it all seems to be something other then I need.
Anyone have any ideas of what I might do to fix this problem?
EDIT:
It appears so that, when using breakpoints, touchesbegan-method does respond to the backgroundview but it doesnt respond when i touch either of the tableviews or the navigationbar (containing the uisearchbar).
Solved it!
- (BOOL) searchBarShouldBeginEditing:(UISearchBar *)searchBar
{
[self.myViewController1.customView1 setUserInteractionEnabled:NO];
[self.myViewController2.customView2 setUserInteractionEnabled:NO];
[searchBar setShowsCancelButton:YES animated:[mySettings animation]];
return YES;
}
I started by shutting down the userInteraction on my 2 subviews, at the moment I start using the searchBar.
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
if ([self.mySearchBar isFirstResponder] && [touch view] != self.mySearchBar)
{
[self.mySearchBar resignFirstResponder];
[self.myViewController1.customView1 setUserInteractionEnabled:YES];
[self.myViewController2.customView2 setUserInteractionEnabled:YES];
}
[super touchesBegan:touches withEvent:event];
}
Then when I click/tap/touch outside the searchBar I first resign the keyboard which is first responder still AND AFTER that I set userInteraction back on for the 2 subviews.
The order of doing this is vital!
This piece of code allows u to resign the keyboard in a single mainViewController even when it is crowded with a massload of subviews.
Have you tried this,
UISearchBar *searchBar;
Next set the Getter and Setter Property of UISearchBar.
and call the any method
[searchBar resignFirstResponder];