禁用复制,粘贴到UITextfield中的操作在iOS 9.x中不起作用 [英] Disable copy, paste in UITextfield is not working in iOS 9.x
本文介绍了禁用复制,粘贴到UITextfield中的操作在iOS 9.x中不起作用的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在一个类BBCustomUtility.h,.m类文件中创建了一个文本字段,然后
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 ;
}
从普通类导入并在class1.m中使用
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];
尝试通过以下方法在文本字段上禁用复制粘贴选项,这些方法不适用于我
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
任何人都可以告诉我我在代码中犯了什么错误.
can any one please tell me what's the mistake i did in my code.
推荐答案
在代码中添加下面的方法,就是这样,
Add below method in your code and that`s it,
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO];
}];
return [super canPerformAction:action withSender:sender];
}
它将禁用所有类型的编辑.
It will disable all types of edit.
希望这会有所帮助:)
这篇关于禁用复制,粘贴到UITextfield中的操作在iOS 9.x中不起作用的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文