Balu Balu - 6 months ago 48
Objective-C Question

Disable copy, paste in UITextfield is not working in iOS 9.x

I created a text field in one class BBCustomUtility.h,.m class files and then

+(UITextField*)createTextField: (CGRect)rect image:(NSString*)imageName tag:(int)tag secureText:(BOOL)entry placeh:(NSString*)placeholder
{
UITextField *transactionField = [ [ UITextField alloc ] initWithFrame: rect ];
transactionField.background = [UIImage imageNamed:imageName];
transactionField.adjustsFontSizeToFitWidth = YES;
transactionField.textColor = [UIColor blackColor];
transactionField.font = [UIFont systemFontOfSize:17.0];
transactionField.placeholder = placeholder;
transactionField.backgroundColor = [UIColor clearColor];
transactionField.borderStyle = UITextBorderStyleNone;
transactionField.autocorrectionType = UITextAutocorrectionTypeNo;
transactionField.autocapitalizationType = UITextAutocapitalizationTypeNone;
transactionField.textAlignment = UITextAlignmentCenter;
transactionField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
transactionField.keyboardType = UIKeyboardTypeDefault;
transactionField.returnKeyType = UIReturnKeyDone;
transactionField.tag = tag;
transactionField.delegate = self;
transactionField.clearButtonMode = UITextFieldViewModeWhileEditing;
transactionField.text = @"";
[ transactionField setEnabled: YES ];
transactionField.secureTextEntry = entry;
return transactionField ;
}


importing from common class and used in class1.m

mPasswordField1 = [BBCustomUtility createTextField:CGRectMake(IS_WIDTH_DEVICE/2-120, 140, 50, 50) image:@"txtField_bg_50.png" tag:1 secureText:YES placeh:[shareObj.mLabelDictionary valueForKey:@""]];
mPasswordField1.keyboardType = UIKeyboardTypeNumberPad;
mPasswordField1.clearButtonMode = UITextFieldViewModeNever;
mPasswordField1.delegate = self;
[self.view addSubview:mPasswordField1];


tried to disable copy paste option on textfield in the below methods these are not working for me

1)
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
// Returning 'NO' here disables all actions on textfield
return NO;
} // not working still showing the paste option on textfield


2)

-(BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == @selector(copy:) || action == @selector(paste:)) {
return NO;
}
return [super canPerformAction:action withSender:sender];
} // this is also not working still showing the paste option


3)

-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{

if ([mPasswordField1 respondsToSelector:@selector(inputAssistantItem)])
{
UITextInputAssistantItem *inputAssistantItem = [mPasswordField1 inputAssistantItem];
inputAssistantItem.leadingBarButtonGroups = @[];
inputAssistantItem.trailingBarButtonGroups = @[];
}
} // this also not working


can any one please tell me what's the mistake i did in my code.

Answer

Add below method in your code and thats it,

 - (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
    [[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO];
}];
return [super canPerformAction:action withSender:sender];
}

It will unable all types of edit.

Hope this will help :)