I have a chat table (correspondence)
The user text is in UITextView
Problem in that on iPhone 4 if they settle down to enter 2 characters here so
And shall be so
The text is created as follows
-(NSAttributedString *)chatStringsMy:(NSString *)string
{
NSRange rangeBold = [string rangeOfString:string];
NSDictionary *dictBoldText = #{NSFontAttributeName : [UIFont fontWithName:#"Arial" size:14.0],
NSForegroundColorAttributeName : [UIColor whiteColor]
};
NSMutableAttributedString *mutAttrTextViewString = [[NSMutableAttributedString alloc] initWithString:string];
[mutAttrTextViewString setAttributes:dictBoldText range:rangeBold];
return mutAttrTextViewString;
}
On other iPHone models everything is normal.
How to solve this problem on iPhone 4?
Related
hi I need to change text to bold in message composer body pls help me , I've tried with attributed text but I couldn't add
NSMutableAttributedString *yourAttributedString = [[NSMutableAttributedString alloc] initWithString:message];
NSString *boldString = #"hey";
NSRange boldRange = [message rangeOfString:boldString];
[yourAttributedString addAttribute: NSFontAttributeName value:[UIFont boldSystemFontOfSize:18] range:boldRange];
UILabel *lbl = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 0, 0)];
lbl.attributedText = yourAttributedString;
MFMessageComposeViewController *messageComposeVC = [[MFMessageComposeViewController alloc] init];
messageComposeVC.messageComposeDelegate = self;
messageComposeVC.recipients = selectedContacts;
messageComposeVC.body = [lbl.attributedText string];
[self presentViewController:messageComposeVC animated:YES completion:nil];
I think it is better if you initiate a attribute to hold all your text attributes ( text size, font , colors ,weight ,styles) and add that when you are initializing the text , in your case "yourAttributedString" . Not sure if there is a specific reason to as why you do this so but try the following .
Use LocalizedStandardRangeofString instead or RangeOfString as you are
displaying this text.Check the "important" section in this documentation https://developer.apple.com/documentation/foundation/nsstring/1416849-rangeofstring?language=objc
//make an attributes dictionary here.
NSDictionary *stringAttributes = #{
NSFontAttributeName:[UIFont boldSystemFontOfSize:20]
};
NSString *message = #" message hey";
NSMutableAttributedString *yourAttributedString =[[NSMutableAttributedString alloc]initWithString:message];
NSString *boldString = #"hey";
NSRange range = [message localizedStandardRangeOfString:boldString];
[yourAttributedString addAttributes:stringAttributes range:range];
self.lbl.attributedText = yourAttributedString;
I'm trying to produce a set of custom page numbers. The current page number will be displayed. The others will simply be open circles.
Using the code below, I'm getting the desired results - except, with the new text attributes in iOS7, I cannot figure out how to center the number.
Any help will be appreciated.
Original iOS6 code:
[pageNumber drawInRect:CGRectMake(x,(self.frame.size.height-_currentPageDiameter)/2-1,_currentPageDiameter,_currentPageDiameter) withFont:[UIFont systemFontOfSize:_currentPageDiameter-2] lineBreakMode:UILineBreakModeCharacterWrap alignment:NSTextAlignmentCenter];
My iOS7 code:
NSString *pageNumber = [NSString stringWithFormat:#"%i", i+1];
CGContextSetFillColorWithColor(myContext, [[UIColor whiteColor] CGColor]);
UIFont* font = [UIFont systemFontOfSize:_currentPageDiameter-2];
NSDictionary *attrs = #{ NSForegroundColorAttributeName : [UIColor whiteColor],
NSFontAttributeName : font,
NSTextEffectAttributeName : NSTextEffectLetterpressStyle};
CGRect r = CGRectMake(x,(self.frame.size.height-_currentPageDiameter)/2-1,_currentPageDiameter,_currentPageDiameter);
[pageNumber drawInRect:r withAttributes:attrs];
The property you're missing for center alignment is defined the following way. I also added the line break mode you had defined on the iOS6 code:
NSMutableParagraphStyle *paragrapStyle = [[NSMutableParagraphStyle alloc] init];
paragrapStyle.alignment = NSTextAlignmentCenter;
paragrapStyle.lineBreakMode = NSLineBreakByCharWrapping;
You just place them in the attributes dictionary under the key:
NSArray *attrs = #{
NSParagraphStyleAttributeName : paragraphStyle,
...
};
I have a TextKit based editor with support to adding images. I want to show each image on separate lines.
My code looks like this (Thank you TextEdit), in my subclass of NSTextStorage
- (void)addImageAssets:(NSArray *)allAssets atRange:(NSRange)range;
{
NSMutableAttributedString *attachments = [NSMutableAttributedString new];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.alignment = NSTextAlignmentCenter;
paragraphStyle.lineSpacing = 20.0f;
for (ALAsset *newAsset in allAssets)
{
UIImage *theImage = [UIImage imageWithCGImage:newAsset.aspectRatioThumbnail];
NSTextAttachment *textAttachment = [NSTextAttachment new];
textAttachment.image = theImage;
NSMutableAttributedString *replacementString = [NSMutableAttributedString new];
[replacementString appendAttributedString:[NSAttributedString attributedStringWithAttachment:textAttachment]];
[replacementString addAttribute:NSParagraphStyleAttributeName
value:paragraphStyle
range:NSMakeRange(0, [replacementString length])];
[attachments appendAttributedString:replacementString];
}
_isEditing = YES;
[self beginEditing];
[_backingStore replaceCharactersInRange:range
withAttributedString:attachments];
[self edited:NSTextStorageEditedAttributes
range:range changeInLength:allAssets.count];
[super processEditing];
[self endEditing];
_isEditing = NO;
}
(the _isEditing is a boolean flag used for book-keeping)
The output looks like this Output http://take.ms/QCvRK
I have tried various parameters on the NSMutableParagraphStyle but I couldn't get a line break after each image.
Appending a line break ("\r") around the text attachment will result in a glyph error
!!! _NSLayoutTreeLineFragmentRectForGlyphAtIndex invalid glyph index 1
!!! _NSGlyphTreeInvalidateGlyphsForCharacterRange invalid char range 1
!!! _NSGlyphTreeInvalidateGlyphsForCharacterRange character count mismatch
!!! _NSLayoutTreeLineFragmentRectForGlyphAtIndex invalid glyph index 0
!!! _NSLayoutTreeLineFragmentRectForGlyphAtIndex invalid glyph index 0
!!! _NSLayoutTreeLineFragmentUsedRectForGlyphAtIndex invalid glyph index 2147483647
I tried to subclass the NSTextAttachment to over-ride the attachmentBoundsForTextContainer:proposedLineFragment:glyphPosition:characterIndex: so that the width is set to the device width, this resulted in the attached image looking blown up.
Any suggestion on how I can introduce a line break right after each image ? Also it would be great if I can get the text to flow around the image attachments.
Thanks in advance.
I have an app which uses NSTextAlignmentJustified for an NSAttributedString. In iOS 6 everything is working great. But the same App running in iOS 7 (simulator or device makes no difference) is showing no Justify at all. Also the linespacing seems to have changed dramatically from iOS 6 to 7.
Anyone else encountered this problem? Is there any way to make a justified Textblock in iOS 7 (which works in iOS 6 too?)
Regards,
Markus
Ok, i kind of found a way to make the label Justifiy in iOS 7:
i simply set NSBaselineOffsetAttributeName to 0.
No idea why it works, but it works.
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
paragraphStyle.alignment = NSTextAlignmentJustified;
NSAttributedString *string = [[NSAttributedString alloc] initWithString:rawString
attributes:[NSDictionary dictionaryWithObjectsAndKeys:
paragraphStyle, NSParagraphStyleAttributeName ,
[NSNumber numberWithFloat:0],NSBaselineOffsetAttributeName,
nil]];
Setting firstLineHeadIndent on NSMutableParagraphStyle will also work too.
NSMutableParagraphStyle *paragraphStyles = [[NSMutableParagraphStyle alloc] init];
paragraphStyles.alignment = NSTextAlignmentJustified; // To justified text
paragraphStyles.firstLineHeadIndent = 0.05; // IMP: must have a value to make it work
NSString *stringTojustify = #"No one wakes up excited to see more advertising, no one goes to sleep thinking about the ads they’ll see tomorrow.";
NSDictionary *attributes = #{NSParagraphStyleAttributeName: paragraphStyles};
NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:stringTojustify attributes:attributes];
self.lblQuote.attributedText = attributedString;
self.lblQuote.numberOfLines = 0;
[self.lblQuote sizeToFit];
Just for the record, you could also append a '\n' as first character for a plain UILabel.
self.text = [NSString stringWithFormat:#"\n%#",TextString];
{
CurFrame.origin.y -= FontSize;
self.frame = CurFrame;
}
self.textAlignment = NSTextAlignmentJustified;
I am trying to get the width of an NSString (ex. NSString *myString = #"hello"). Is there a way to do this?
Thanks.
Here's a relatively simple approach. Just create an NSAttributedString with the appropriate font and ask for its size:
- (CGFloat)widthOfString:(NSString *)string withFont:(NSFont *)font {
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:font, NSFontAttributeName, nil];
return [[[NSAttributedString alloc] initWithString:string attributes:attributes] size].width;
}
UIFont * font ＝ [UIFont systemFontOfSize:15];
CGSize stringSize = [aString sizeWithFont:font];
CGFloat width = stringSize.width;
Using the UILabel's attributed string:
- (CGSize)getStringSizeWithText:(NSString *)string font:(UIFont *)font{
UILabel *label = [[UILabel alloc] init];
label.text = string;
label.font = font;
return label.attributedText.size;
}
Send the string a sizeWithAttributes: message, passing a dictionary containing the attributes with which you want to measure the string.
i dont know if you are suppose to use this in cocoa touch. if it is, then:
- (CGFloat)widthOfString:(NSString *)string withFont:(NSFont *)font {
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:font, NSFontAttributeName, nil];
return [[[NSAttributedString alloc] initWithString:string attributes:attributes] size].width;
}
wont work.
in cocoa touch, you gotta add coretext framework and import the header
and write your code like this:
UIFont *font = [UIFont fontWithName:#"HelveticaNeue-BoldItalic" size:DEFAULT_FONT_SIZE];
// NSLog(#"%#", NSFontAttributeName);
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:font, (NSString *)kCTFontAttributeName, nil];
but, GEE!!!!!
NSMutableAttributedString *as = [[NSMutableAttributedString alloc] initWithString:self.caption attributes:attributes];
[as size].width;
there's no size this method in NSMutableAttributedString!
finally, this would work
[self.caption sizeWithFont:font].width
as for ios 7 and up this is the correct way:
NSString * buttonTitle = #"demo title";
CGSize stringSize = [buttonTitle sizeWithAttributes:#{NSFontAttributeName: [UIFont systemFontOfSize:17.0f]}];
This works with iOS 14.5
Objective-C
Define attributes:
NSDictionary *attributes = #{
NSFontAttributeName: [UIFont fontWithName:#"Helvetica" size:25],
NSStrokeWidthAttributeName: #(0),
NSStrokeColorAttributeName: [UIColor blackColor]
};
Get width and height:
- (CGFloat)widthOfString:(NSString *)string {
CGSize stringSize = [string sizeWithAttributes:attributes];
return stringSize.width;
}
- (CGFloat)heightOfString:(NSString *)string {
CGSize stringSize = [string sizeWithAttributes:attributes];
return stringSize.height;
}
Sorry my question was not detailed enough and is not exactly what I'm trying to do. I am using a text storage, layout manager and a text container. The solution is to use the layout manager to determine the rectangle that bounds the rect. Here is the code.
NSTextStorage *textStorage = [[NSTextStorage alloc] initWithString:#"hello"];
NSLayoutManager *layoutManager = [[NSLayoutManager alloc] init];
NSTextContainer *textContainer = [[NSTextContainer alloc] init];
[layoutManager addTextContainer:textContainer];
[textContainer release];
[textStorage addLayoutManager:layoutManager];
[layoutManager release];
//Figure out the bounding rectangle
NSRect stringRect = [layoutManager boundingRectForGlyphRange:NSMakeRange(0, [layoutManager numberOfGlyphs]) inTextContainer:textContainer];
UIKit has a nice addition to NSString, making sizeWithAttributes: a bit lighter:
CGSize titleSize = [title sizeWithFont:titleFont
constrainedToSize:contentCellSize
lineBreakMode:UILineBreakModeWordWrap];
Here's Stephen's solution in Clozure Common Lisp, when using the Objective C bridge. I came across this post when searching for a solution, and I just rewrote Stephen's version which worked fine for me. Others using Clozure might find this helpful:
(defun string-width (str font)
(let* ((dict (#/dictionaryWithObjectsAndKeys: ns:ns-mutable-dictionary
font #$NSFontAttributeName
ccl:+null-ptr+))
(attr (#/initWithString:attributes: (#/alloc ns:ns-attributed-string)
(ccl::%make-nsstring str)
dict))
(size (#/size attr)))
(ns:ns-size-width size)))
This will work. You can try it.
NSDictionary *attrDict = #{NSFontAttributeName : [GenericUtility getOpenSansRegularFontSize:12]};
CGSize stringBoundingBox = [selectedReservationModel.DateLabel sizeWithAttributes: attrDict];
lblDeliveryDateWidth = stringBoundingBox.width;
Just in case you are wondering how to check a label size, you should use the UIFont, instead of the NSFont (not even sure if exists)