I have seen lots of code to hide the whole tabbar. I am using tab bar controller in storyboard.
If I had third and fourth buttons how could I hide just the second but still have 1, 3 and 4 buttons shown?
Well just hide the button itself.
button2.hidden = true
You will need to create an outlet.
#IBOutlet var button2 : UIButton!
And link it to the button in Interface Builder
Ok to hide the button the following can be done. I used this code in a table view to add the editing function and change the title of the button based on the the click. But I modified it for this post just to show that when I clicked on the button again it would make it disappear.
var condition: Bool = true
#IBAction func buttonEdit(sender: UIBarButtonItem) {
if(condition == true) {
tableView.editing = true
sender.title = "Done"
condition = false
} else {
tableView.editing = false
sender.title = "" // This clears the title
sender.enabled = false // This disables the button
sender.image = UIImage() // This would clear the image
condition = true
}
}
I know how to show an image when a button is pressed. But how do you "hide" the image again once the button is pressed a second time? Here is all I have so far...
-(IBAction)Light
{
LightLCD.hidden = NO;
}
Try
-(IBAction)Light
{
LightLCD.hidden = !LightLCD.hidden;
}
Like this:
- (IBAction)Light
{
LightLCD.hidden = !LightLCD.hidden;
}
This way you can toggle the visibility of the imageView.
In Cocoa-Touch we find a control UISearchBar. I need to customize it so that the search icon (which we click performs the respective action) present in the textfield is right aligned. Normally we find it left aligned. Is it possible to do so? I have done R & D but couldn't find it ...
How can I do it? Are there any good tutorials where we can find it?
Unfortunately the UISearchBar wasn't designed to directly support this. In accomplishing what we want it's likely that we're going to have to use workarounds that compromise visually or functionality wise or write a lot of customising code.
I've outlined a couple of approaches that get close to what we want and may be of use.
Accessing Subviews Approach
The text within a UISearchBar is a UITextField that is a subview of that UISearchBar and is accessible through the usually means i.e. view.subviews.
The magnifying glass search icon is a UIImageView in the leftView property of the UITextField. We can switch it over to the right using the following code:
// The text within a UISearchView is a UITextField that is a subview of that UISearchView.
UITextField *searchField;
for (UIView *subview in self.searchBar.subviews)
{
if ([subview isKindOfClass:[UITextField class]]) {
searchField = (UITextField *)subview;
break;
}
}
// The icon is accessible through the 'leftView' property of the UITextField.
// We set it to the 'rightView' instead.
if (searchField)
{
UIView *searchIcon = searchField.leftView;
if ([searchIcon isKindOfClass:[UIImageView class]]) {
NSLog(#"aye");
}
searchField.rightView = searchIcon;
searchField.leftViewMode = UITextFieldViewModeNever;
searchField.rightViewMode = UITextFieldViewModeAlways;
}
Which gives us the following result:
As you can see the icon overruns the edge of the rounded rectangle and the clear icon has disappeared. In addition, the rightView property was intended for other content such as the search results button and bookmarks button. Putting the search icon here may conflict with this functionality in some way even if you were able to use padding of offsets to position it appropriately.
In the very least you can use this approach to extract the icon as a UIImageView and position it explicitly where you see fit as you would any other view and write custom code to handle tap events etc.
Customizing Appearance Approach
In iOS v5.0 and later, you can customize the appearance of search bars using the methods listed here. The following code makes use of offsets to position the icon and text within the UISearchBar:
[self.searchBar setPositionAdjustment:UIOffsetMake(255, 0) forSearchBarIcon:UISearchBarIconSearch];
[self.searchBar setSearchTextPositionAdjustment:UIOffsetMake(-270, 0)];
On a standard UISearchBar of 320 width it looks like the following:
This would keep all event functionality associated with the icon working as expected but unfortunately the UITextField is confused and despite its width, it only displays a very small portion of its text. If you could find a way to allow the text to display beyond what it believes to be the end of the UITextField, this will probably be your best bet.
My requirement was that the search icon should be on the right, and that it should hide whenever the X icon showed up.
I came up with a similar solution as above, but a bit different and also using Swift 2 and AutoLayout. The basic idea is to hide the left view, create a new view with the magnifying glass image, and use autolayout to pin it to the right. Then use UISearchBarDelegate methods to hide the search icon whenever the searchbar text is not empty.
class CustomSearchView: UIView {
//the magnifying glass we will put on the right
lazy var magnifyingGlass = UIImageView()
#IBOutlet weak var searchBar: UISearchBar!
func commonInit() {
searchBar.delegate = self
searchBar.becomeFirstResponder()
//find the search bar object inside the subview stack
if let searchField = self.searchBar.subviews.firstObject?.subviews.filter(
{($0 as? UITextField) != nil }).firstObject as? UITextField {
//hides the left magnifying glass icon
searchField.leftViewMode = .Never
//add a magnifying glass image to the right image view. this can be anything, but we are just using the system default
//from the old left view
magnifyingGlass.image = (searchField.leftView! as? UIImageView)?.image
//add the new view to the stack
searchField.addSubview(magnifyingGlass)
//use autolayout constraints to pin the view to the right
let views = ["view": magnifyingGlass]
magnifyingGlass.translatesAutoresizingMaskIntoConstraints = false
searchField.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat(
"H:[view(12)]-|", options: [], metrics: nil, views: views))
searchField.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat(
"V:[view]-|", options: [], metrics: nil, views: views))
}
}
//hides whenever text is not empty
func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
magnifyingGlass.hidden = searchText != ""
}
}
I need to add done button on tool bar with UIkeyboard(type) Number Pad, to resign the keyboard while click on done button. I used Input Accessory View but it adds to normal keyboard also ,i need to add this where i have number pad.For example i have a text field it takes only numbers there i need this.Other than places i don't want to show input Accessory view.Or else i need to show tool bar with Done button for Iphone using Mono Touch.
Thank you.
public override UIView InputAccessoryView
{
get
{
if (dismiss == null)
{
UIToolbar toolbar = new UIToolbar(new RectangleF(0, 0, 320, 30));
toolbar.BarStyle = UIBarStyle.BlackTranslucent;
dismiss = new UIView(new RectangleF(-20, -120, 320, 30));
dismissBtn = new UIButton(new RectangleF(268, 1, 50, 29));
dismissBtn.SetBackgroundImage(new UIImage("Images/done_active.png"), UIControlState.Normal);
dismissBtn.AllEvents += delegate
{
HideKeyBoard();
};
toolbar.AddSubview(dismissBtn);
dismiss.AddSubview(toolbar);
dismiss.BringSubviewToFront(dismissBtn);
dismiss.BringSubviewToFront(toolbar);
}
return dismiss;
}
}
I put a numeric keypad in my app for inputing numbers into a text view, but in order to input numbers I have to click on the text view. Once I do so, the regular keyboard comes up, which I don't want.
How can I disable the keyboard altogether? Any help is greatly appreciated.
The UITextField's inputView property is nil by default, which means the standard keyboard gets displayed.
If you assign it a custom input view, or just a dummy view then the keyboard will not appear, but the blinking cursor will still appear:
UIView* dummyView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
myTextField.inputView = dummyView; // Hide keyboard, but show blinking cursor
If you want to hide both the keyboard and the blinking cursor then use this approach:
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
return NO; // Hide both keyboard and blinking cursor.
}
For Swift 2.x, 3.x, 4.x, 5.x
textField.inputView = UIView()
does the trick
If it's a UITextField, you can set it's enabled property to NO.
If it's a UITextView, you can implement -textViewShouldBeginEditing: in its delegate to return NO, so that it'll never start editing. Or you can subclass it and override -canBecomeFirstResponder to return NO. Or you could take advantage of its editing behavior and put your numeric buttons into a view which you use as the text view's inputView. This is supposed to cause the buttons to be displayed when the text view is edited. That may or may not be what you want.
Depending on how you have your existing buttons working this could break them, but you could prevent the keyboard from showing up setting the textView's editable property to NO
myTextView.editable = NO
I have the same problem when had 2 textfields on the same view. My purpose was to show a default keyboard for one textfield and hide for second and show instead a dropdown list.
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
method simply did not work as I expected for 2 textfields , the only workaround I found was
UIView* dummyView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
myTextField.inputView = dummyView;
myTextField.inputAccessoryView = dummyView;
myTextField.tintColor = myTextField.backgroundColor; //to hide a blinking cursor
This will totally hide the keyboard for a target textField (DropDownList in my case) and show a default one when user switches to the 2nd textfield (Account number on my screenshot)
There is a simple hack to it. Place a empty button
(No Text) above the keyboard and have a action Event assign to it. This will stop keyboard coming up and you can perform any action you want in the handle for the button click
To disable UITextField keyboard:
Go to Main.Storyboard
Click on the UITextField to select it
Show the Attributes inspector
Uncheck the User Interaction Enabled
To disable UITextView keyboard:
Go to Main.Storyboard
Click on the UITextView to select it
Show the Attributes inspector
Uncheck the Editable Behavior
I used the keyboardWillShow Notification and textField.endEditing(true):
lazy var myTextField: UITextField = {
let textField = UITextField()
// ....
return textField
}()
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(_:)), name: UIResponder.keyboardWillShowNotification, object: nil)
}
#objc func keyboardWillShow(_ notification: Notification) {
myTextField.endEditing(true)
// if using a textView >>> myTextView.endEditing(true) <<<
}
private void TxtExpiry_EditingDidBegin(object sender, EventArgs e)
{
((UITextField)sender).ResignFirstResponder();
}
In C# this worked for me, I don't use the storyboard.
In Xcode 8.2 you can do it easily by unchecking state "enabled" option.
Click on the textField you want to be uneditable
Go to attirube inspector on right side
Uncheck "enabled" for State
Or if you want to do it via code. You can simply create an #IBOutlet of this text field, give it a name and then use this variable name in the viewDidLoad func (or any custom one if you intent to) like this (in swift 3.0.1):
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
myTextField.isEditable = false
}