I wanted to put a timer in the title label of a tableViewController. To my surprise, storyboard let me drop a button the title and I got everything working, however, I need to button to differentiate between single and double taps. Single tap starts and stops the timer, and double tap would reset it back to zero. In order to make a button recognize both type of taps, I had to create a subclass of UIButton, which means that I am now adding the button programmatically rather than through storyboard. In viewDidLoad, I tried to add the button to the titleView of the navigationItem but nothing's showing when I run it in the simulator. I set the x,y coordinates like this
self.navigationItem.titleView.bounds.size.width/2
thinking it would place the button in the middle.
I'm not sure if I've messed up the coordinates or done something else wrong, but nothing's showing. Can you suggest how it might be done?
MMTimerButton *button = [MMTimerButton buttonWithType:UIButtonTypeRoundedRect];
[button setTitle:#"Button" forState:UIControlStateNormal];
button.frame = CGRectMake(self.navigationItem.titleView.bounds.size.width/2, self.navigationItem.titleView.bounds.size.height/2, 160.00, 40.0);
[self.navigationItem.titleView addSubview:button];
Related
I have a UITextField for search in my Application.
When user taps on the Clear Button in the right of the Search Text Field I need to hide this textfield.
So, can I show the Clear Button then TextField is empty? I need to do it always to provide the ability hiding TextField.
Just create a Custom button and set it as rightView for your TextField
UIButton *cleanBtn = [UIButton buttonWithType:UIButtonTypeCustom];
// Set clear image for your button
[cleanBtn setImage:img forState:UIControlStateNormal];
[cleanBtn addTarget:self action:#selector(cleanTextField:) forControlEvents:UIControlEventTouchUpInside];
yourTextField.rightViewMode = UITextFieldViewModeAlways;
yourTextField.rightView = cleanBtn;
I tried to fix this issue with creating a custom button and setting the rightView of my text field. It did not solve my problem. There is no button on the right view.
I have added UIButton in Interface Builder using Auto Layout and placed it on my text field. It works. It's strange solution but it works.
I've set up views and buttons programatically, and i'm adding/removing views a lot. What i'm doing is also adding buttons on certain views, and i'm having trouble with a very specific one.
The structure :
I have a main view, on top of which i added another view (same size, which is the whole size of the tablet). This view contains buttons, images, etc. This is all working fine there.
One of these buttons is a "menu" which makes a simple menu appear so you can navigate to other views. This menu is another view (a third one) that adds itself on top of everything. Works fine here too.
Important note : that menu is very small compared to the whole frame, but the menu view still takes the whole space, its just 70% transparent.
The problem :
What is not working, is my way to remove that menu when, for example, i decide to click in the transparent space that is around my visible menu, it just closes it.
To do that, i decided to add a transparent background button (that takes the whole frame and is just behind my visible menu, but still in my menu view frame).
So basically : i click on a button and it closes views and just does stuff. Here is the code i'm using :
(...)
UIButton *backgroundCloser = [[UIButton alloc]initWithFrame:_menuViewController.view.frame];
[backgroundCloser addTarget:self action:#selector(closeMenuView) forControlEvents:UIControlEventTouchUpInside];
backgroundCloser.backgroundColor = [UIColor orangeColor];
backgroundCloser.alpha = 0.2;
[self.view addSubview:backgroundCloser];
[self.view bringSubviewToFront:backgroundCloser];
[self.view addSubview:_menuViewController.view];
[self.view bringSubviewToFront:_menuViewController.view];
- (void)closeMenuView{
stuff }
Right now my button is slightly orange and transparent so i'm sure its there. And i can see it. But my " closemenuview " NEVER gets called on tap. or at all.
I've tried putting it as IBAction, but in vain.
Any clue of what's happening to my baby?
If you are adding buttons on various view try writing
YOUR_View.userInteractionEnabled = YES;
and setUp Button as below
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:#selector(aMethod:)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:#"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
Fixed it.
It's always the same, i look for everything for about an hour, and as soon as i post on stack, i just find the answer by myself.
I was simply adding it to the wrong view (self.view) instead of _menuviewcontroller.view.
I want to select multiple images from gallery and want to upload but before uploading I want to add a cancel button which help's user in deleting the image/image's after selection if user wants to. So how can I add a cancel button on image view ? I've tried the below code for adding button but when I select the multiple image's or single image then this button is not visible.
UIImage *imgview1=(UIImage*)[UIImage imageNamed:#"overlay.png"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
//[button addTarget:self action:#selector(aMethod:) forControlEvents:UIControlEventTouchDown];
[button setImage:imgview1 forState:UIControlStateNormal];
button.frame = CGRectMake(25, 25, 60, 60);
[_scrollView addSubview:button];
I want to make the User Interface of the page like this image!
Unfortunately I can't comment yet, but could you provide a bit more clarification?
My understanding from the question is that you would like to have a scroll view with many buttons in it (the buttons will be selectable images), and on those buttons you would like to add an (x) button like in the image that will respond to taps.
If that is your question then I think the simplest answer is to add another button as a subview of the image when it is selected. When that subview button is tapped you can respond in a method like below:
(void)xTapped:(UIButton *)xButton
{
UIButton *myImage = xButton.superview;
// then unselect the superview here
}
I have one button and one search field in navigation bar and i added a new button by code from one class for all view.
The problem is: with the button view the other button and the search field added with storyboard are not more touchable and not working.
UIImage * buttonImage = [UIImage imageNamed:#"chat-notify.png"];
button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self
action:#selector(goChat)
forControlEvents:UIControlEventTouchDown];
//[button setTitle:#"1" forState:UIControlStateNormal];
button.frame = CGRectMake(280.0, 25.0, 30.0, 30.0);
[button setBackgroundImage:buttonImage forState:UIControlStateNormal];
[self.view addSubview:button];
and then in the controller:
notificationViewController* notification = [[notificationViewController alloc]init];
//[notification methodA];
[notification makeButtonNotification];
[self.view addSubview:notification.view];
Does anyone know where is my mistake?
Thanks
Why are you adding the button surely having it there and changing it's hidden state would be easier then you can keep it all in the storyboard
UIControlEventTouchUpInside
is what you should use not "UIControlEventTouchDown"
TouchUpInside is usually the event where you trigger the action from a button. It's when the user is lifting up from the button after pressing it. You don't want to trigger the action on Touch Down as the use may move his finger off the button to cancel the press, which is standard and expected behaviour on iOS
UPDATE: Base on your comment to this answer perhaps you need to add the button to a specific point in your view heir achy. As in your storyboard views will be added as they are listed in that stroyboard starting from the top down, with the one on the bottom being the top view.
Try obviously making sure that views that you want to receive touches are not directly on top of each and that they do not overlap. Also try adding the programatically generated button above or below a specific view, rather than just making it the top subview in your main view which by the sounds of it isn't what you want.
As you're adding a button like this
[self.view addSubview:button];
it may be better to do it more like this
[self.view insertSubview:button aboveSubview:someOtherView]
To do this you'll probably need to hook up your "someOtherView" to an IBOutlet so you can reference it in your code. As it looks like you're most likely sticking your button over everything else, when you need to be more precise.
I added a right bar button to the tableView in the storyboard, created an IB action which opens another window. Everything works fine. But now I want to use a custom Image for that button. I found this:
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:infoIconImage forState:UIControlStateNormal];
Which I guess with a few extra lines of code will do the job,
but I can't seem to understand what name that button has in the code. How I relate that button from the storyboard to the code.
Beginner question, sorry.
Create an IBOutlet just like you linked your action from your storyboard to your .h file. Name it button, and you're good to go !
BTW, you can set "standard" images in your storyboard : select the button, go to the Attribute Inspector in the Utilities bar of Xcode (right bar), and change the Identifier !
Edit :
Have a look over there to use your own image :
Customize UIBarButtonItem
The part about the UIBarButtonItem is near the end of the article.
OK, I found there is a property customView. SO here it is:
// Set the custom back button
UIImage *infoIconImage = [UIImage imageNamed:#"info-button.png"];
//create the button and assign the image
UIButton *iButton = [UIButton buttonWithType:UIButtonTypeCustom];
[iButton setImage:infoIconImage forState:UIControlStateNormal];
//set the frame of the button to the size of the image
iButton.frame = CGRectMake(0, 0, infoIconImage.size.width, infoIconImage.size.height);
//assigning customized button
infoButton.customView = iButton;