How to change text in UITextView and UITextField - ios

I need to edit my UITextView and when I make these changes I need them to reflect that in my UITextFields. Currently i can use the code below to move whatever text i write into the first UITextField is there a simple way to move each line to a separate UITextField?
Like the image, except the 1, 2 and 3 going to a different UITextField.
-(IBAction)print:(id)sender {
NSString *texto = [[NSString alloc] initWithFormat:#"%# %#",[myTextField text],[myTextView text]];
[myTextField setText:texto];
[myTextView setText:#""];
[myTextView resignFirstResponder];
}
Really, I need to figure this out. Any help will be appreciated.

Have your view controller conform to the UITextViewDelegate protocol.
Next, set the delegate property of your text view to your view controller.
Then, implement - (void)textViewDidChange:(UITextView *)textView, along these lines:
- (void)textViewDidChange:(UITextView *)textView
{
// Set the text for your text fields.
//
// (I'm assuming your code for determining the text to put in the
// text fields works as you intend, so I'm just copying it here.)
NSLayoutManager *layoutManager = [textView layoutManager];
unsigned numberOfLines, index, numberOfGlyphs = [layoutManager numberOfGlyphs];
NSRange lineRange;
for (numberOfLines = 0, index = 0; index < numberOfGlyphs; numberOfLines++)
{
(void) [layoutManager lineFragmentRectForGlyphAtIndex:index
effectiveRange:&lineRange];
index = NSMaxRange(lineRange);
NSString *lineText = [textView.text substringWithRange:lineRange];
[yourArray addObject:lineText];
}
textField1.text=yourArray[0];
textField2.text=yourArray[1];
textField3.text=yourArray[2];
textField4.text=yourArray[3];
textField5.text=yourArray[4];
textField6.text=yourArray[5];
textField7.text=yourArray[6];
}

Related

UITextView change selectRange always crash

When user click the passage in textView, I want to change the cursor to the linebreak, but when I change selectionRange is always failed.
I know the reason, but I must change the selectedRange in func: textViewDidChangeSelection:(UITextView*)textView
How can I change the selectedRange?
here is the code
-(void)textViewDidChangeSelection:(UITextView *)textView
// paragLocations: it contain all "\n" locations
NSArray* paragLocations = [self ParagraphLocationsWithText:textView Pattern:translatePragraphLinebreak];
// location :According to user selection,The nearest "\n" location
NSUInteger nearestLocation = [self ClickParagraphEndBreakLoctionWithSelectLocation:textView.selectedRange.location withParagLocations:paragLocations];
//Then
//1. here I change the textView.selectedRange
textView.selectedRange = NSMakeRange(nearestLocation, 0);
//2. here I change the cursorPosition
CGFloat cursorPosition = [self caretRectForPosition:textView.selectedTextRange.start].origin.y;
[textView setContentOffset:CGPointMake(0, cursorPosition) animated:YES];
// but In step 1 ,It changed textView.selectedRange,So this func will do it again,and then again,until the nearestLocation became the paragLocations.lastObject.
/*
so the question is how to break this Infinite loop ?
should I change selectedRange In this func?
I want to changed the selectedRange base on User select In textview
*/
sorry about my poor english.
You can try the following code, it works for me fine.
- (void)textViewDidChangeSelection:(UITextView *)textView {
UITextRange *selectRange = [textView selectedTextRange];
NSString *selectedText = [textView textInRange:selectRange];
}

Multiple fonts inside a single UITextField

I have a TextField and three buttons which are 40pts above the TextField. These buttons provide the changing of font size of TextField's text when I clicked on any of them for eg first button set font size to 17 second changes it to 20 and third change it to 24. So I add IbAction to all buttons like
- (IBAction)setRegularText:(id)sender {
self.additionalInfo.font = [UIFont systemFontOfSize:20];
}
And according to button. But it will change the previous entered text too. I want the text font to be change only when user selet the option. Previously entered text's font size must not be changed.
You will need to use the attributed string NSAttributedString. With text field it is best to have a delegate and implement the method on changing the characters in range. This will handle all the cases even when the user pasts the text from somewhere else.
So the NSMutableAttributedString has a method to replace the string in range with a mutable attributed string which is perfect for this method. The new string received by the delegate must simply be converted to the attributed one with a currently set font.
Try something like this:
#interface AttributedTextField : NSObject<UITextFieldDelegate>
#property (nonatomic, strong) NSMutableAttributedString *attributedString;
#property (nonatomic, strong) UIFont *currentFont;
#end
#implementation AttributedTextField
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
// ensure having a font
UIFont *font = self.currentFont;
if(font == nil) {
font = [UIFont systemFontOfSize:12.0f];
}
// ensure having a base string
if(self.attributedString == nil) {
self.attributedString = [[NSMutableAttributedString alloc] initWithString:#""];
}
// append the new string
[self.attributedString replaceCharactersInRange:range withAttributedString:[[NSMutableAttributedString alloc] initWithString:string attributes:#{NSFontAttributeName: font}]];
textField.attributedText = self.attributedString; // assign the new text which is attributed
return NO; // return false as we are overriding the text
}
#end
set the tag of every button as the font size that button should change.
i-e
self.button1.tag = 17;
self.button2.tag = 20;
self.button3.tag = 24;
and use the tag as font size.
i-e
- (IBAction)setRegularText:(UIButton *)sender {
self.additionalInfo.font = [UIFont systemFontOfSize:sender.tag];
}
You can set different text size in textfield like this way:
- (void)setFontString:(NSString *)setString setFontSize: (double) fontSize {
self.txtAnswer.text = #"";
self.txtAnswer.text = setString;
self.txtAnswer.font = [UIFont systemFontOfSize:fontSize];
}
- (IBAction)btn1Tap:(id)sender {
[self setFontString:#"Good Morning" setFontSize:20.0f];
}
- (IBAction)btn2Tap:(id)sender {
[self setFontString:#"Good Afternoon" setFontSize:15.0f];
}
- (IBAction)btn3Tap:(id)sender {
[self setFontString:#"Good Evening" setFontSize:10.0f];
}

Using KIF to click links in UITextView

Is it possible to use KIF to click links in UITextViews? Using Accessibility Inspector seems to treat the UITextView as a single view and does not seem to recognize links.
It seems that links in UITextView objects need a longer press to activate than a standard tap with KIF. I solved this by writing my own test step using a category on KIFUITestActor. The code tries to find the text you want to tap inside of the UITextView and then long presses it.
- (void)tapText:(NSString *)text inTextViewWithAccessibilityIdentifier:(NSString *)identifier
{
[self runBlock:^KIFTestStepResult(NSError *__autoreleasing *error) {
UITextView *textView = nil;
UIAccessibilityElement *element = nil;
[self waitForAccessibilityElement:&element view:&textView withIdentifier:identifier tappable:YES];
KIFTestCondition([textView isKindOfClass:[UITextView class]], error, #"The accessibility element is not a UITextView");
NSRange range = [[textView.textStorage string] rangeOfString:text];
KIFTestCondition(range.length > 0, error, #"The text '%#' was not found in UITextView with accessibility identifier: %#", text, identifier);
range.length = 1;
range = [textView.layoutManager glyphRangeForCharacterRange:range actualCharacterRange:nil];
CGRect rect = [textView.layoutManager boundingRectForGlyphRange:range inTextContainer:textView.textContainer];
rect = CGRectOffset(rect, textView.textContainerInset.left, textView.textContainerInset.top);
CGPoint point = CGPointMake(CGRectGetMidX(rect), CGRectGetMidY(rect));
[textView longPressAtPoint:point duration:0.1f];
return KIFTestStepResultSuccess;
}];
}

iOS - appending string before and after the word

I want to add a string in the highlighted area in the textview, I mean by the highlighted area, where the blue line is located.
So once the user click on the button it adds a string where the "blue line" is located
I used stringByAppendingString but it adds the string after the word exists only
NSRange range = myTextView.selectedRange;
NSString * firstHalfString = [myTextView.text substringToIndex:range.location];
NSString * secondHalfString = [myTextView.text substringFromIndex: range.location];
myTextView.scrollEnabled = NO; // turn off scrolling
NSString * insertingString = [NSString stringWithFormat:#"your string value here"];
myTextView.text = [NSString stringWithFormat: #"%#%#%#",
firstHalfString,
insertingString,
secondHalfString];
range.location += [insertingString length];
myTextView.selectedRange = range;
myTextView.scrollEnabled = YES;
You need to use the selectedRange to find out where the text cursor is. Then use replaceCharactersInRange:withString: or insertString:atIndex: to insert the new text into the original text. Then update the text into the view.
Even though its not clear what you are trying to achieve, it seems that you want the user to start editing the textfield from the position where text starts. In that case , you can refer following:
Hint 1
Set your view controller (or some other appropriate object) as the text field's delegate and implement the textFieldDidBeginEditing: method like this:
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
UITextPosition *beginning = [textField beginningOfDocument];
[textField setSelectedTextRange:[textField textRangeFromPosition:beginning
toPosition:beginning]];
}
Note that setSelectedTextRange: is a protocol method of UITextInput (which UITextField implements), so you won't find it directly in the UITextField documentation.
Hint 2
self.selectedTextRange = [self textRangeFromPosition:newPos toPosition:newPos];
Hint 3
finding-the-cursor-position-in-a-uitextfield/

UITextField secureTextEntry bullets with a custom font?

I’m using a custom font in a UITextField, which has secureTextEntry turned on. When I’m typing in the cell, I see the bullets in my chosen font, but when the field loses focus, those bullets revert to the system standard font. If I tap the field again, they change back to my font, and so on.
Is there a way I can ensure that they continue to display the custom font’s bullets, even when the field is out of focus?
A subclass that works this issue around. Create an arbitrary UITextField, then set the secure property to YES (via KVC in IB).
Actually it implements a comment suggested by lukech. When textfield ends editing, it switches to an arbitrary textfield, then set a bulk of dots into, and some hack in text accessor to always get the actual text the field holds.
#interface SecureTextFieldWithCustomFont : UITextField
#property (nonatomic) BOOL secure;
#property (nonatomic, strong) NSString *actualText;
#end
#implementation SecureTextFieldWithCustomFont
-(void)awakeFromNib
{
[super awakeFromNib];
if (self.secureTextEntry)
{
// Listen for changes.
[self addTarget:self action:#selector(editingDidBegin) forControlEvents:UIControlEventEditingDidBegin];
[self addTarget:self action:#selector(editingDidChange) forControlEvents:UIControlEventEditingChanged];
[self addTarget:self action:#selector(editingDidFinish) forControlEvents:UIControlEventEditingDidEnd];
}
}
-(NSString*)text
{
if (self.editing || self.secure == NO)
{ return [super text]; }
else
{ return self.actualText; }
}
-(void)editingDidBegin
{
self.secureTextEntry = YES;
self.text = self.actualText;
}
-(void)editingDidChange
{ self.actualText = self.text; }
-(void)editingDidFinish
{
self.secureTextEntry = NO;
self.actualText = self.text;
self.text = [self dotPlaceholder];
}
-(NSString*)dotPlaceholder
{
int index = 0;
NSMutableString *dots = #"".mutableCopy;
while (index < self.text.length)
{ [dots appendString:#"•"]; index++; }
return dots;
}
#end
May be augmented to work with non NIB instantiations, handling default values, etc, but you probably get the idea.
For those having trouble with losing custom fonts when toggling secureTextEntry, I found a work-around (I'm using the iOS 8.4 SDK). I was trying to make a toggle for showing/hiding a password in a UITextField. Every time I'd toggle secureTextEntry = NO my custom font got borked, and only the last character showed the correct font. Something funky is definitely going on with this, but here's my solution:
-(void)showPassword {
[self.textField resignFirstResponder];
self.textField.secureTextEntry = NO;
}
First responder needs to be resigned for some reason. You don't seem to need to resign the first responder when setting secureTextEntry to YES, only when setting to NO.
The actual problem appears to be that the editing view (UITextField does not draw its own text while editing) uses bullets (U+2022) to draw redacted characters, while UITextField uses black circles (U+25CF). I suppose that in the default fonts, these characters look the same.
Here's an alternate workaround for anyone interested, which uses a custom text field subclass, but doesn't require juggling the text property or other special configuration. IMO, this keeps things relatively clean.
#interface MyTextField : UITextField
#end
#implementation MyTextField
- (void)drawTextInRect:(CGRect)rect
{
if (self.isSecureTextEntry)
{
NSMutableParagraphStyle *paragraphStyle = [NSMutableParagraphStyle new];
paragraphStyle.alignment = self.textAlignment;
NSMutableDictionary *attributes = [NSMutableDictionary dictionary];
[attributes setValue:self.font forKey:NSFontAttributeName];
[attributes setValue:self.textColor forKey:NSForegroundColorAttributeName];
[attributes setValue:paragraphStyle forKey:NSParagraphStyleAttributeName];
CGSize textSize = [self.text sizeWithAttributes:attributes];
rect = CGRectInset(rect, 0, (CGRectGetHeight(rect) - textSize.height) * 0.5);
rect.origin.y = floorf(rect.origin.y);
NSMutableString *redactedText = [NSMutableString new];
while (redactedText.length < self.text.length)
{
[redactedText appendString:#"\u2022"];
}
[redactedText drawInRect:rect withAttributes:attributes];
}
else
{
[super drawTextInRect:rect];
}
}
#end
While this is an iOS bug (and new in iOS 7, I should add), I do have another way to work around it that one might find acceptable. The functionality is still slightly degraded but not by much.
Basically, the idea is to set the font to the default font family/style whenever the field has something entered in it; but when nothing is entered, set it to your custom font. (The font size can be left alone, as it's the family/style, not the size, that is buggy.) Trap every change of the field's value and set the font accordingly at that time. Then the faint "hint" text when nothing is entered has the font that you want (custom); but when anything is entered (whether you are editing or not) will use default (Helvetica). Since bullets are bullets, this should look fine.
The one downside is that the characters, as you type before being replaced by bullets, will use default font (Helvetica). That's only for a split second per character though. If that is acceptable, then this solution works.
I found a trick for this issue.
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
if ([textField tag]== TAG_PASS || [textField tag]== TAG_CPASS)
{
// To fix password dot size
if ([[textField text] isEqualToString:#"" ])
{
[textField setText:#" "];
[textField resignFirstResponder];
[textField becomeFirstResponder];
[textField setText:#""];
}
}
}
[passWordTextField resignFirstResponder];
passWordTextField.secureTextEntry = !passWordTextField.secureTextEntry;
[passWordTextField becomeFirstResponder];
This is the fastest way to solve this bug!
iOS is acting a bit strange when it comes to custom fonts. Try removing "Adjust to Fit" for that textfield. If that doesn't work, I'm guessing that what bothering you is the size increase of the font.
A simple solution for that would be:
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
if(textField.secureTextEntry)
{
[textField setFont:[UIFont fontWithName:#"Helvetica-Bold" size:10.0]];
}
}
-(void)textFieldDidEndEditing:(UITextField *)textField
{
if(textField.secureTextEntry)
{
[textField setFont:[UIFont fontWithName:#"Helvetica-Bold" size:10.0]];
}
}
You'll need to play with the size a bit in order for it to look like there is no size change when loosing focus on the UITextField.
If you have a major spacing problem between characters like in the edited question, the simplest (and a bit ugly) solution would be to create a Bullet image that matches the above size & spacing and matches the amount of characters entered by the user that will appear when the user leaves the UITextField.
A secureTextEntry text field can be avoided altogether:
NSString *pin = #"";
BOOL pasting = FALSE;
-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
if(!pasting) {
pin = [pin stringByReplacingCharactersInRange:range withString:string];
// Bail out when deleting a character
if([string length] == 0) {
return YES;
}
pasting = TRUE;
[textField paste:#"●"];
return NO;
} else {
pasting = FALSE;
return YES;
}
}
I recommend to resignFirstResponder before you change scureTextEntry and then becomeFirstResponder again as it is posted here: https://stackoverflow.com/a/34777286/1151916
Swift 5 and iOS 14 is around but isSecureTextEntry set to true for custom font still displays the wrong size bullets, although the actual leading letter is of the correct size.
None of the solutions from stack overflow has worked for me except a hacky workaround of setting the font to the system font when password is in secure mode.
if textField.isSecureTextEntry {
self.textField.font = UIFont.systemFont(ofSize: 17)
} else {
self.textField.font = UIFont(name: "Roboto-Regular", size: 17)
}

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