I need to support pasting of images into a UITextView. With an image copied to the clipboard, the "Paste" option doesn't seem to pop up. It does when there's text on the clipboard.
This is how to override the paste option in a custom UITextView. But I need help on how to get the option to show up to begin with...
// This gets called when user presses menu "Paste" option
- (void)paste:(id)sender{
UIImage *image = [UIPasteboard generalPasteboard].image;
if (image) {
NSTextAttachment *textAttachment = [[NSTextAttachment alloc] init];
textAttachment.image = image;
NSAttributedString *imageString = [NSAttributedString attributedStringWithAttachment:textAttachment];
self.attributedText = imageString;
} else {
// Call the normal paste action
[super paste:sender];
}
}
I came across a few related questions, but they weren't helpful for an inexperienced developer like myself:
How to get UIMenuController work for a custom view?, How to paste image from pasteboard on UITextView?
I answered my own question. All you have to do is have the UITextView say "I can receive pasted images" by overriding this UITextView method:
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == #selector(paste:) && [UIPasteboard generalPasteboard].image)
return YES;
else
return [super canPerformAction:action withSender:sender];
}
You're welcome.
Thanks #Matt your answer helped me. Just extending your answer which may help some one,
Subclassing UITextview, which shows paste option on long press when you have image in pasteboard.
class MyTextView:UITextView {
var onPasteImage:(()->Void)?
override func awakeFromNib() {
super.awakeFromNib()
}
override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
if action == #selector(paste(_:)) && UIPasteboard.general.image != nil {
return true
}else{
return super.canPerformAction(action, withSender: sender)
}
}
override func paste(_ sender: Any?) {
super.paste(sender)
if UIPasteboard.general.image != nil {
onPasteImage?()
}
}
}
And wait for onPasteImage closure to be called on tap paste in textview,
inputFieldForReply.textView.onPasteImage = { [weak self] in
if let image = UIPasteboard.general.image {
// Process pasted image
}
}
Related
I know how to add tappability to the UIImageView, however, there are 2 image views and I want to distinguish them to call the correct function. However, I can't seem to get the correct sender.
func addTappability (view imageView:UIImageView){
//add tapping function for image
let tapGestureRecognizer = UITapGestureRecognizer(target:self, action:#selector(IdCardViewController.imageTapped(_:)))
imageView.isUserInteractionEnabled = true
imageView.addGestureRecognizer(tapGestureRecognizer)
}
func imageTapped(_ sender: UIImageView) {
//Problem here, can't get correct sender
if ( sender == photoImageViewLeft) {
//do one thing
}else {
//do the other
}
}
Replace your function with this:
func imageTapped(_ sender: UITapGestureRecognizer) {
if let imageView = sender.view as? UIImageView {
if ( imageView == photoImageViewLeft ) {
print("Image1 Tapped")
}else {
print("Image2 Tapped")
}
}
}
You need to add tag where you're adding imageViews either in storyboard or in code.
then in your imageTapped() method compare them -
func imageTapped(_ sender: UIImageView) {
//Problem here, can't get correct sender
if ( sender.tag == 1) {
//do one thing
}else if(sender.tag ==2){
//do the other
}
}
I have an app built with Swift and iOS8. In my ViewController I had two textfields.
I use this code:
func textFieldShouldReturn(textField: UITextField) -> Bool {
if textField == self.textfield_A {
self.textfield_B.becomeFirstResponder()
}
if textField == self.textfield_B {
self.textfield_B.resignFirstResponder()
}
return true
}
The effect:
I select textfield_A and Press the Next Button -> the cursor jump to textfield_B
On textfield_B I press the Done Button -> the keyboard will be hidden.
All works fine.
But now I have made a change and the code doesn't work like this anymore.
I changed the textfield_A to a textView.
Any idea how I have to modify my code?
You have to add an extension, this is the extension for swift 3.0
extension UITextField {
class func connectFields(fields:[UITextField]) -> Void {
guard let last = fields.last else {
return
}
for i in 0 ..< fields.count - 1 {
fields[i].returnKeyType = .next
fields[i].addTarget(fields[i+1], action: #selector(UIResponder.becomeFirstResponder), for: .editingDidEndOnExit)
}
last.returnKeyType = .done
last.addTarget(last, action: #selector(UIResponder.resignFirstResponder), for: .editingDidEndOnExit)
}
}
and after you add this line of code:
UITextField.connectFields(fields: [field1, field2, field3])
textFieldShouldReturn won't be called anymore for textfield_A now because is is a textview now, not a textfield.
Try adding this function
func textView(textView: UITextView!, shouldChangeTextInRange: NSRange, replacementText: NSString!) -> Bool {
if(replacementText == "\n") {
textView.resignFirstResponder()
return false
}
return true
}
If you are using both textfield then below code might be helpful to you my friend
Make sure your text fields have their delegate set and implement the textFieldShouldReturn method. This is the method that is called when the user taps the return key (no matter what it looks like).
The method might look something like this:
func textFieldShouldReturn(textField: UITextField) -> Bool {
if textField == self.field1 {
self.field2.becomeFirstResponder()
}
return true
}
And do not forget to give Delegate
TextField.delegate = self
Using textField you can detect return key press by using textFieldShouldReturn: method. textView is a multi-line input so return key just adds a new line, so the easiest way to catch return key press is to implement UITextViewDelegate method:
func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
if text == "\n" {
textView.resignFirstResponder()
return false
}
return true
}
You can do it this way in your doneButton action:
#IBAction func donePressed(sender: AnyObject) {
if textV.resignFirstResponder() { //check if cursor is at textView.
textfield_B.becomeFirstResponder() //move it to your next textField.
} else {
textfield_B.resignFirstResponder() //else hide your keyboard.
}
}
And your result will be:
Hope it helps.
Swift 4.2
This is a More Generic Solution you can use this code with any amount of TextFields.
Just inherit UITextFieldDelegate and update the Textfield Tag according to the order
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
let txtTag:Int = textField.tag
if let textFieldNxt = self.view.viewWithTag(txtTag+1) as? UITextField {
textFieldNxt.becomeFirstResponder()
}else{
textField.resignFirstResponder()
}
return true
}
I use the "Next" value for the "Return Key" to get the Next button in place of the Done button, but (obviously) pressing it doesn't automatically move to the next UITextField in my view.
What's the right way to do this? I have seen many answers, but anyone have a swift solution?
Make sure your text fields have their delegate set and implement the textFieldShouldReturn method. This is the method that is called when the user taps the return key (no matter what it looks like).
The method might look something like this:
func textFieldShouldReturn(textField: UITextField) -> Bool {
if textField == self.field1 {
self.field2.becomeFirstResponder()
}
return true
}
The actual logic in here might vary. There are numerous approaches, and I'd definitely advise against a massive if/else chain if you have lots of text fields, but the gist here is to determine what view is currently active in order to determine what view should become active. Once you've determined which view should become active, call that view's becomeFirstResponder method.
For some code cleanliness, you might consider a UITextField extension that looks something like this:
private var kAssociationKeyNextField: UInt8 = 0
extension UITextField {
var nextField: UITextField? {
get {
return objc_getAssociatedObject(self, &kAssociationKeyNextField) as? UITextField
}
set(newField) {
objc_setAssociatedObject(self, &kAssociationKeyNextField, newField, .OBJC_ASSOCIATION_RETAIN)
}
}
}
And then change our textFieldShouldReturn method to look like this:
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.nextField?.becomeFirstResponder()
return true
}
Once you've done this, it should simply be a matter of setting each text field's new nextField property in viewDidLoad:
self.field1.nextField = self.field2
self.field2.nextField = self.field3
self.field3.nextField = self.field4
self.field4.nextField = self.field1
Although if we really wanted, we could prefix the property with #IBOutlet, and that would allow us to hook up our "nextField" property right in interface builder.
Change the extension to look like this:
private var kAssociationKeyNextField: UInt8 = 0
extension UITextField {
#IBOutlet var nextField: UITextField? {
get {
return objc_getAssociatedObject(self, &kAssociationKeyNextField) as? UITextField
}
set(newField) {
objc_setAssociatedObject(self, &kAssociationKeyNextField, newField, .OBJC_ASSOCIATION_RETAIN)
}
}
}
And now hook up the nextField property in interface builder:
(Set up your delegate while you're here too.)
And of course, if the nextField property returns nil, the keyboard just hides.
Here is an example in Swift:
I created a screen with 6 UITextFields. I assigned them the tags 1 through 6 in Interface Builder. I also changed the Return key to Next in IB. Then I implemented the following:
import UIKit
// Make your ViewController a UITextFieldDelegate
class ViewController: UIViewController, UITextFieldDelegate {
// Use a dictionary to define text field order 1 goes to 2, 2 goes to 3, etc.
let nextField = [1:2, 2:3, 3:4, 4:5, 5:6, 6:1]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// Make ourselves the delegate of the text fields so that textFieldShouldReturn
// will be called when the user hits the Next/Return key
for i in 1...6 {
if let textField = self.view.viewWithTag(i) as? UITextField {
textField.delegate = self
}
}
}
// This is called when the user hits the Next/Return key
func textFieldShouldReturn(textField: UITextField) -> Bool {
// Consult our dictionary to find the next field
if let nextTag = nextField[textField.tag] {
if let nextResponder = textField.superview?.viewWithTag(nextTag) {
// Have the next field become the first responder
nextResponder.becomeFirstResponder()
}
}
// Return false here to avoid Next/Return key doing anything
return false
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
There is nothing wrong with the other answers, this is just a different approach with the benefit of being more focused on OOP - imho (although this is a bit more work up front, it can be reused). In the storyboard, I start off adding tags with a distinct range (e.g 800-810) that define the specific order of the fields I want to move between. This has the benefit of working across all subviews in the main view so that one can navigate between UITextField's and UITextView's (and any other control) as needed.
Generally - I typically try to have view controllers message between views and custom event handler objects. So I use a message (aka, NSNotification) passed back to the view controller from a custom delegate class.
(TextField Delegate Handler)
Note: In AppDelegate.swift: let defaultCenter = NSNotificationCenter.defaultCenter()
//Globally scoped
struct MNGTextFieldEvents {
static let NextButtonTappedForTextField = "MNGTextFieldHandler.NextButtonTappedForTextField"
}
class MNGTextFieldHandler: NSObject, UITextFieldDelegate {
var fields:[UITextField]? = []
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
return true
}
func textFieldDidBeginEditing(textField: UITextField) {
textField.backgroundColor = UIColor.yellowColor()
}
func textFieldDidEndEditing(textField: UITextField) {
textField.backgroundColor = UIColor.whiteColor()
}
func textFieldShouldBeginEditing(textField: UITextField) -> Bool {
return true
}
func textFieldShouldClear(textField: UITextField) -> Bool {
return false
}
func textFieldShouldEndEditing(textField: UITextField) -> Bool {
return true
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
//passes the message and the textField (with tag) calling the method
defaultCenter.postNotification(NSNotification(name: MNGTextFieldEvents.NextButtonTappedForTextField, object: textField))
return false
}
}
This allows my view controller to remain focused on it's main job of handling the messaging between objects, model and view.
(View Controller receives a message from the delegate and passes instructions using the advanceToNextField function)
Note: In my storyboard my custom handler classes are defined using an NSObject and that object is linked into the storyboard as a delegate for the controls that I need monitored. Which causes the custom handler class to be initialized automatically.
class MyViewController: UIViewController {
#IBOutlet weak var tagsField: UITextField! { didSet {
(tagsField.delegate as? MNGTextFieldHandler)!.fields?.append(tagsField)
}
}
#IBOutlet weak var titleField: UITextField!{ didSet {
(titleField.delegate as? MNGTextFieldHandler)!.fields?.append(titleField)
}
}
#IBOutlet weak var textView: UITextView! { didSet {
(textView.delegate as? MNGTextViewHandler)!.fields?.append(textView)
}
}
private struct Constants {
static let SelectorAdvanceToNextField = Selector("advanceToNextField:")
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
registerEventObservers()
}
override func viewDidDisappear(animated: Bool) {
super.viewDidDisappear(animated)
deRegisterEventObservers()
}
func advanceToNextField(notification:NSNotification) {
let currentTag = (notification.object as! UIView).tag
for aView in self.view.subviews {
if aView.tag == currentTag + 1 {
aView.becomeFirstResponder()
}
}
}
func registerEventObservers () {
defaultCenter.addObserver(self, selector: Constants.SelectorAdvanceToNextField, name: MNGTextFieldEvents.NextButtonTappedForTextField, object: nil)
}
func deRegisterEventObservers() {
defaultCenter.removeObserver(self, name: MNGTextFieldEvents.NextButtonTappedForTextField, object: nil)
}
....
}
Just another way to achieve the result that I found helpful. My app had 11 text fields followed by a text view. I needed to be able to cycle through all fields using the next key and then resign the keyboard following the textview (i.e. other notes).
In the storyboard, I set the tag on all of the fields (both text and textview) starting with 1 through 12, 12 being the textview.
I'm sure there are other ways to do it and this method isn't perfect, but hopefully it helps someone.
In code, I wrote the following:
func textFieldShouldReturn(textField: UITextField) -> Bool {
let nextTag = textField.tag + 1
//Handle Textview transition, Textfield programmatically
if textField.tag == 11 {
//Current tag is 11, next field is a textview
self.OtherNotes.becomeFirstResponder()
} else if nextTag > 11 {
//12 is the end, close keyboard
textField.resignFirstResponder()
} else {
//Between 1 and 11 cycle through using next button
let nextResponder = self.view.viewWithTag(nextTag) as? UITextField
nextResponder?.becomeFirstResponder()
}
return false
}
func textFieldDidEndEditing(textField: UITextField) {
textField.resignFirstResponder()
}
func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
//Remove keyboard when clicking Done on keyboard
if(text == "\n") {
textView.resignFirstResponder()
return false
}
return true
}
Another approach, if you're using storyboards, you can change the textfield's attribute for Return Key.
Currently you have the following options: Default (Return), Go, Google, Join, Next, Route, Search, Send, Yahoo, Done, Emergency Call, Continue
This question already has answers here:
How to disable copy paste option from UITextField programmatically
(17 answers)
Closed 9 years ago.
UITextField how to disable the paste?
overrides the canPerformAction:withSender: method to return NO for actions that you don't want to allow:
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == #selector(paste:))
return NO;
if (action == #selector(select:))
return NO;
if (action == #selector(selectAll:))
return NO;
return [super canPerformAction:action withSender:sender];
}
In Above Code you need to write only for paste
Another way
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender {
UIMenuController *menuController = [UIMenuController sharedMenuController];
if (menuController) {
[UIMenuController sharedMenuController].menuVisible = NO;
}
return NO;
}
Also check This link
EDITED
In iOS 7, you can do such like,,
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO];
}];
return [super canPerformAction:action withSender:sender];
}
For Swift User
override public func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
if action == #selector(copy(_:)) || action == #selector(paste(_:)) {
return false
}
return true
}
If you want to Open Date Picker or Picker view on TEXTFIELD click then below code work.
Add below two methods in your class.
//Hide Menu View
override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
if YOURTEXTFIELD.isFirstResponder {
DispatchQueue.main.async(execute: {
(sender as? UIMenuController)?.setMenuVisible(false, animated: false)
})
return false
}
return super.canPerformAction(action, withSender: sender)
}
//MUST Implement
func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
return false
}
I am making a registration alertview that has a UITextField in it where the user can enter their registration number. everything is pretty much their, however I would like to remove the copy paste function from the textfield programmatically since their is no InterfaceBuilder version of the textfield I have no idea how to do this..
here Is my UIalertview thus far...
- (void)pleaseRegisterDevice {
UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:#"Please Register Device!" message:#"this gets covered" delegate:self cancelButtonTitle:nil otherButtonTitles:#"OK", nil];
regTextField = [[UITextField alloc] initWithFrame:CGRectMake(12.0, 45.0, 260.0, 25.0)];
[regTextField setBackgroundColor:[UIColor whiteColor]];
regTextField.textAlignment = UITextAlignmentCenter;
[myAlertView addSubview:regTextField];
[myAlertView show];
[myAlertView release];
}
This post has many nice solutions: How disable Copy, Cut, Select, Select All in UITextView
My favourite is to override canPerformAction:withSender::
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == #selector(paste:))
return NO;
return [super canPerformAction:action withSender:sender];
}
Storyboard users may want to look at this solution, as long as you are ok with subclassing.
I don't think that there is an easy way to achieve this through extensions or protocols.
Swift 3.1
import UIKit
#IBDesignable
class CustomTextField: UITextField {
#IBInspectable var isPasteEnabled: Bool = true
#IBInspectable var isSelectEnabled: Bool = true
#IBInspectable var isSelectAllEnabled: Bool = true
#IBInspectable var isCopyEnabled: Bool = true
#IBInspectable var isCutEnabled: Bool = true
#IBInspectable var isDeleteEnabled: Bool = true
override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
switch action {
case #selector(UIResponderStandardEditActions.paste(_:)) where !isPasteEnabled,
#selector(UIResponderStandardEditActions.select(_:)) where !isSelectEnabled,
#selector(UIResponderStandardEditActions.selectAll(_:)) where !isSelectAllEnabled,
#selector(UIResponderStandardEditActions.copy(_:)) where !isCopyEnabled,
#selector(UIResponderStandardEditActions.cut(_:)) where !isCutEnabled,
#selector(UIResponderStandardEditActions.delete(_:)) where !isDeleteEnabled:
return false
default:
//return true : this is not correct
return super.canPerformAction(action, withSender: sender)
}
}
}
Gist link
For iOS8.0+, Xcode 6.0.1, ARC enabled
Hoping to save a beginner, like myself, some time implementing this...
To implement disabling copy/paste/cut/etc. you must subclass UITextField and override...
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
To do this...
Create a new class that is a subclass of UITextField (i.e. a new .h and .m files to be included within your app folder). So File->New->"Cocoa Touch Class"->Next->"PasteOnlyUITextField" (for example), subclass of "UITextField"->Next->Create.
Once the .h and .m files are created for our new subclass of UITextField called "PasteOnlyUITextField"...
PasteOnlyUITextField.h
#import <UIKit/UIKit.h>
#interface PasteOnlyUITextField : UITextField
#end
PasteOnlyUITextField.m
#import "PasteOnlyUITextField.h"
#implementation PasteOnlyUITextField
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
// Drawing code
}
*/
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == #selector(paste:))
{
return true;
}
return false;
}
#end
Now make sure you import PasteOnlyUITextField.h where you are going to use it, e.g. YourUIViewController.h file...
#import "PasteOnlyUITextField.h"
Now you must use the subclass, either progrommatically or with identity inspector
PasteOnlyUITextField *pasteOnlyUITextField = [[PasteOnlyUITextField alloc] init...];
or...
Select the UITextField and go to the identity inspector, select its class.
You can change the logic associated with the menu options as you see fit...
Hope this helps! Thanks to all the original contributors.
I have found a way with swift using extension and associatedObject without subclassing.
I use a property readonly to disable paste/cut but this sample can be adapted.
Swift 3 updated as of 27/11/2016
var key: Void?
class UITextFieldAdditions: NSObject {
var readonly: Bool = false
}
extension UITextField {
var readonly: Bool {
get {
return self.getAdditions().readonly
} set {
self.getAdditions().readonly = newValue
}
}
private func getAdditions() -> UITextFieldAdditions {
var additions = objc_getAssociatedObject(self, &key) as? UITextFieldAdditions
if additions == nil {
additions = UITextFieldAdditions()
objc_setAssociatedObject(self, &key, additions!, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN)
}
return additions!
}
open override func target(forAction action: Selector, withSender sender: Any?) -> Any? {
if ((action == #selector(UIResponderStandardEditActions.paste(_:)) || (action == #selector(UIResponderStandardEditActions.cut(_:)))) && self.readonly) {
return nil
}
return super.target(forAction: action, withSender: sender)
}
}
Other Swift (2.2)
import UIKit
var key: Void?
class UITextFieldAdditions: NSObject {
var readonly: Bool = false
}
extension UITextField {
var readonly: Bool {
get {
return self.getAdditions().readonly
}
set {
self.getAdditions().readonly = newValue
}
}
private func getAdditions() -> UITextFieldAdditions {
var additions = objc_getAssociatedObject(self, &key) as? UITextFieldAdditions
if additions == nil {
additions = UITextFieldAdditions()
objc_setAssociatedObject(self, &key, additions!, objc_AssociationPolicy(OBJC_ASSOCIATION_RETAIN_NONATOMIC))
}
return additions!
}
public override func targetForAction(action: Selector, withSender sender: AnyObject?) -> AnyObject? {
if ((action == Selector("paste:") || (action == Selector("cut:"))) && self.readonly) {
return nil
}
return super.targetForAction(action, withSender: sender)
}
}
Implement this Method in ViewController.m This Method will help you to disable Options on UITextField.
It Includes paste, select, selectAll and copy option on your Corresponding UITextField.
This method is very useful in case of UITextField when you want to take this for Password or DateOfBirth or whatever you want.
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
if ((_TextField1 isFirstResponder] || [_TextFied2 isFirstResponder]) {
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO];
}];
}
return [super canPerformAction:action withSender:sender];
}
In Swift, If you want your text field to disable all UIResponderStandardEditActions (cut, copy, paste, look up, share, select), use this in UITextFieldDelegate.
func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
textField.isUserInteractionEnabled = false
return true
}
func textFieldDidEndEditing(_ textField: UITextField) {
textField.isUserInteractionEnabled = true
}
In iOS 9 we can hide the copy paste bar from keyboard
-(void) customMethod{
yourTextField.inputAssistantItem.leadingBarButtonGroups = #[];
yourTextField.inputAssistantItem.trailingBarButtonGroups = #[];
}
Swift 5 solution:
override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
if action == #selector(UIResponderStandardEditActions.copy(_:)) || action == #selector(UIResponderStandardEditActions.paste(_:)) {
return false
}
return true
}
Small update of this answer for iOS 10 and earlier (Swift 3):
open override func target(forAction action: Selector, withSender sender: Any?) -> Any? {
guard isReadonly else {
return super.target(forAction: action, withSender: sender)
}
if #available(iOS 10, *) {
if action == #selector(UIResponderStandardEditActions.paste(_:)) {
return nil
}
} else {
if action == #selector(paste(_:)) {
return nil
}
}
return super.target(forAction: action, withSender: sender)
}
Try this in your viewController
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO];
}];
return [super canPerformAction:action withSender:sender];
}
Disable all actions by UITextField subclass.
import UIKit
class CustomTextField: UITextField {
override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
return false
}
}
you can extension textview or textfield in swift, like this:
extension UITextView {
open override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
return false
}
}
If disabled text selection works for you, try this.
class NoMoreSelectionTextField: UITextField {
override func caretRect(for position: UITextPosition) -> CGRect {
return CGRect.zero
}
override var selectedTextRange: UITextRange? {
get { return nil }
set { return }
}
}
Overriding targetForAction:withSender is best IMHO:
- (id)targetForAction:(SEL)action withSender:(id)sender
{
if (action == #selector(paste:)) {
return nil;
}
return [super targetForAction:action withSender:sender];
}
Swift 3.0 version
class NoMenuTextField: UITextField {
override func canPerformAction(action: Selector, withSender sender: AnyObject?) -> Bool {
if (action == #selector(NSObject.paste(_:))) {
return false
}
return super.canPerformAction(action, withSender: sender)
}
}
use for iOS 7 or later
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO];
}];
return [super canPerformAction:action withSender:sender];
}
Just set userInteractionEnabled = NO;