Changing UITabBarItem image's color - icons

I'm having an hard time trying to change the color of my UITabBarItem's icon. I used the code below to initialize all the parameters:
// Settings Tab
tabBarController?.tabBar.translucent = false
tabBarController?.tabBar.barTintColor = dark_color
let titoli:[String] = ["Feed","Categorie","Info"]
for (var i:Int=0; i<titoli.count; i++){
let tab:UITabBarItem? = tabBarController?.tabBar.items![i] as UITabBarItem?
tab?.image = UIImage(named: titoli[i])
tab?.title = titoli[i]
tab?.setTitleTextAttributes(NSDictionary(object: UIColor.whiteColor(), forKey: NSForegroundColorAttributeName) as? [String:AnyObject], forState: UIControlState.Selected)
tab?.setTitleTextAttributes(NSDictionary(object: UIColor(red: 0, green: 0, blue: 0, alpha: 0.6), forKey: NSForegroundColorAttributeName) as? [String:AnyObject], forState: UIControlState.Normal)
}
Am I missing something here?
FYI: just playing with XCode Beta and Swift 2.0

Already answered here but in short, click on the tab bar item you wish to change and you can add a new runtime attribute in the Storyboard which will change the entire item (image & text) when selected.

Related

How to set image in google marker with a border in Android?

I have profile photo of users stored in Firebase and I want to know how I can create a marker with the user's profile photo with an orange border.
I tried some code from the internet and it works but the measurements seem to be wrong and I don't know what I'm doing wrong.
The code I used:
fun setMarkerPhoto(user:User, location: Location){
var bitmapFinal : Bitmap?
if(hasProfilePhoto){
/*val options = RequestOptions()
options.centerCrop()*/
Glide.with(this)
.asBitmap()
/*.apply(options)*/
.centerCrop()
.load(user.image)
.into(object : CustomTarget<Bitmap>(){
override fun onResourceReady(resource: Bitmap, transition: com.bumptech.glide.request.transition.Transition<in Bitmap>?) {
bitmapFinal = createUserBitmapFinal(resource)
markerOptions
.position(LatLng(location!!.latitude, location!!.longitude))
.title("Current Location")
.snippet(address)
.icon(BitmapDescriptorFactory.fromBitmap(bitmapFinal))
mCurrentMarker = googleMap.addMarker(markerOptions)
}
override fun onLoadCleared(placeholder: Drawable?) {
TODO("Not yet implemented")
}
})
}else{
markerOptions
.position(LatLng(mLastLocation!!.latitude, mLastLocation!!.longitude))
.title("Current Location")
.snippet(address)
.icon(BitmapDescriptorFactory.fromBitmap(smallMarker))
mCurrentMarker = googleMap.addMarker(markerOptions)
}
}
private fun createUserBitmapFinal(bitmapInicial: Bitmap?): Bitmap? {
var result: Bitmap? = null
try {
result = Bitmap.createBitmap(150,150, Bitmap.Config.ARGB_8888) //change the size of the placeholder
result.eraseColor(Color.TRANSPARENT)
val canvas = Canvas(result)
val drawable: Drawable = resources.getDrawable(R.drawable.ic_pickup)
drawable.setBounds(0, 0, 150,150) //change the size of the placeholder, but you need to maintain the same proportion of the first line
drawable.draw(canvas)
val roundPaint = Paint(Paint.ANTI_ALIAS_FLAG)
val bitmapRect = RectF()
canvas.save()
if (bitmapInicial != null) {
val shader =
BitmapShader(bitmapInicial, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP)
val matrix = Matrix()
val scale: Float = 200 / bitmapInicial.width.toFloat() //reduce or augment here change the size of the original bitmap inside the placehoder.
// But you need to adjust the line bitmapRect with the same proportion
matrix.postTranslate(5f, 5f)
matrix.postScale(scale, scale)
roundPaint.shader = shader
shader.setLocalMatrix(matrix)
bitmapRect[10f, 10f, 104f+10f]=104f+10f //change here too to change the size
canvas.drawRoundRect(bitmapRect, 56f, 56f, roundPaint)
}
I didn't really understand how to perfectly fit the bitmap image inside the placeholder. My marker looked like this:
also the image wasn't being center cropped even though I mentioned that it should be in the code, where it says Glide.centerCrop()
Also, I'm using GeoFire to display markers of users in a specified radius of the user and for now I can display a simple marker but I want the marker to have that user's profile photo too! How can I do it?
GeoFire Code:
val geoQuery: GeoQuery = geoFire.queryAtLocation(GeoLocation(location.latitude, location.longitude), 0.5)
geoQuery.addGeoQueryEventListener(object : GeoQueryEventListener {
override fun onKeyEntered(key: String, location: GeoLocation) {
println(String.format("Key %s entered the search area at [%f,%f]", key, location.latitude, location.longitude))
Log.i("key entered","User found around you")
val aroundYou = LatLng(location.latitude, location.longitude)
if (markerList != null) {
for (marker in markerList) {
marker.remove()
}
}
otherMarkerOptions
.position(aroundYou)
.title("Current Location")
//.snippet(address)
.icon(BitmapDescriptorFactory.fromBitmap(smallMarker)) //This is a simple marker but i want it to have the user's profile photo
markerList.add(googleMap.addMarker(otherMarkerOptions))
//}
}
Thank you in advance
Edit:
In the line: val drawable: Drawable = resources.getDrawable(R.drawable.ic_pickup)
It's this png:
I want to insert the profile photo of the user on that drawable file and if the user doesn't have a profile photo then only the drawable photo will be visible.
You get the code to transform the bitmap from my code in another question in StrackOverflow. As I mentioned there, I can´t teste the code because i´m only working with flutter right now.
But looking ate your code I might try this:
Add this function:
fun dp(value: Float): Int {
return if (value == 0f) {
0
} else Math.ceil(resources.displayMetrics.density * value.toDouble()).toInt()
}
in your lines:
result = Bitmap.createBitmap(150,150, Bitmap.Config.ARGB_8888);
drawable.setBounds(0, 0, 150,150);
change to:
result = Bitmap.createBitmap(dp(62f), dp(76f), Bitmap.Config.ARGB_8888);
drawable.setBounds(0, 0, dp(150f), dp(150f)) ;
let me know the results.

How to select a single Curve in a Path in Paper.js?

I need to distinctly select a single Curve of a clicked Path, how can I do that?
For example, in this sketch we can select a whole path when clicked on it:
Currently I can detect the curve (not sure if it is the appropriate approach, anyway):
..onMouseDown = (event) ~>
hit = scope.project.hitTest event.point
if hit?item
# select only that specific segment
curves = hit.item.getCurves!
nearest = null
dist = null
for i, curve of curves
_dist = curve.getNearestPoint(event.point).getDistance(event.point)
if _dist < dist or not nearest?
nearest = i
dist = _dist
selected-curve = curves[nearest]
..selected = yes
But whole path is selected anyway:
What I want to achieve is something like this:
There is an easier way to achieve what you want.
You can know if hit was on a curve by checking its location property.
If it is set, you can easily get the curve points and manually draw your selection.
Here is a sketch demonstrating it.
var myline = new Path(new Point(100, 100));
myline.strokeColor = 'red';
myline.strokeWidth = 6;
myline.add(new Point(200, 100));
myline.add(new Point(260, 170));
myline.add(new Point(360, 170));
myline.add(new Point(420, 250));
function onMouseDown(event) {
hit = paper.project.hitTest(event.point);
// check if hit is on curve
if (hit && hit.location) {
// get curve
var curve = hit.location.curve;
// draw selection
var selection = new Group(
new Path.Line({
from: curve.point1,
to: curve.point2,
strokeColor: 'blue',
strokeWidth: 3
}),
new Path.Rectangle({
from: curve.point1 - 5,
to: curve.point1 + 5,
fillColor: 'blue'
}),
new Path.Rectangle({
from: curve.point2 - 5,
to: curve.point2 + 5,
fillColor: 'blue'
})
);
// make it automatically be removed on next down event
selection.removeOnDown();
}
}
Update
As an alternative, to avoid messing up with the exported drawing, you can simply select the line instead of applying it a stroke style.
See this sketch.
var selection = new Path.Line({
from: curve.point1,
to: curve.point2,
selected: true
});
There is no built-in way to do what you'd like AFAIK.
You basically need to walk through the segments, construct a line, and see if the hit is on that particular line. The line cannot be transparent or it's not considered a hit which is why I give it color and width to match the visible line; it's also why it's deleted after the test.
Here's the sketch solution that implements a bit more around this:
function onMouseDown(event){
if (!myline.hitTest(event.point)) {
return
}
c1.remove()
c2.remove()
// there's a hit so this should find it
let p = event.point
let segs = myline.segments
for (let i = 1; i < segs.length; i++) {
let line = new Path.Line(segs[i - 1].point, segs[i].point)
line.strokeWidth = 6
line.strokeColor = 'black'
if (line.hitTest(p)) {
c1 = new Path.Circle(segs[i-1].point, 6)
c2 = new Path.Circle(segs[i].point, 6)
c1.fillColor = 'black'
c2.fillColor = 'black'
line.remove()
return
}
line.remove()
}
throw new Error("could not find hit")
}
Here's what I draw:

CCScrollView doesn't show ContentNode

I succeeded to show a contentNode on a scrollView published from SpriteBuilder. But couldn't show it on a scrollView made programatically.
I just put these codes on didLordFromCCB MainScene.m. I did nothing with the SpriteBuilder project.
CCNodeColor* base = [CCNodeColor nodeWithColor:[CCColor blueColor] width:760 height:200];
base.position = ccp(30, 200);
CCNodeColor* color0 = [CCNodeColor nodeWithColor:[CCColor magentaColor] width:100 height:100];
color0.position= ccp(0, 0);
[base addChild:color0];
CCNodeColor* color1 = [CCNodeColor nodeWithColor:[CCColor magentaColor] width:100 height:100];
color1.position= ccp(660, 0);
[base addChild:color1];
CCNodeColor* color2 = [CCNodeColor nodeWithColor:[CCColor magentaColor] width:100 height:100];
color2.position= ccp(330, 100);
[base addChild:color2];
CCScrollView* sv = [[CCScrollView alloc]initWithContentNode:base];
[self addChild:sv];
sv.horizontalScrollEnabled = YES;
sv.contentSize = CGSizeMake(260, 200);
[sv setPositionInPoints:ccp(30, 200)];
I know that I'm late but maybe I still can help someone:
Inside of CCScrollView initialisation I found this line:
self.contentSizeType = CCSizeTypeNormalized;
So you just need to set contentSizeType back to "CCSizeTypePoints":
sv.contentSize = CCSizeTypePoints;
sv.contentSize = CGSizeMake(260, 200);
Hope this helps!
I signed up a few mins ago just to leave this comment :)

MDI Child Windows overdraw frame toolbar?

I have write a MDI application with toolbar, but the child window overdraw the frame window's toolbar. Here is the effect, I have to click the left corner to see the toolbar icons.
I create the toolbar with following code:
CToolBar::CToolBar(HINSTANCE hInst, HWND hParent, LPCTSTR lpszWindowName) :
CWindow(hInst, hParent, lpszWindowName)
{
INITCOMMONCONTROLSEX icex;
// Ensure that the common control DLL is loaded.
icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
icex.dwICC = ICC_BAR_CLASSES;
InitCommonControlsEx(&icex);
lstrcpy(m_szClassName, TOOLBARCLASSNAME);
}
BOOL CToolBar::Create()
{
//create the toolbar
m_hWnd = CreateWindowEx(0, TOOLBARCLASSNAME, (LPCTSTR) NULL,
WS_CHILD, 0, 0, 0, 0, m_hParent,
(HMENU) ID_TOOLBAR, m_hInst, NULL);
//for backword compatibility
SendMessage(m_hWnd, TB_BUTTONSTRUCTSIZE, (WPARAM) sizeof(TBBUTTON), 0);
if (m_hWnd == NULL)
return FALSE;
return TRUE;
}
BOOL CToolBar::Init()
{
TBBUTTON tbb[3];
TBADDBITMAP tbab;
if (! Create() )
return FALSE;
//Add standard toolbar bitmaps
tbab.hInst = HINST_COMMCTRL;
tbab.nID = IDB_STD_SMALL_COLOR;
SendMessage(m_hWnd, TB_ADDBITMAP, 0, (LPARAM)&tbab);
//Add buttons
ZeroMemory(tbb, sizeof(tbb));
tbb[0].iBitmap = STD_CUT;
tbb[0].idCommand = IDS_CUT;
tbb[0].fsState = TBSTATE_ENABLED;
tbb[0].fsStyle = TBSTYLE_BUTTON;
tbb[1].iBitmap = STD_COPY;
tbb[1].idCommand = IDS_COPY;
tbb[1].fsState = TBSTATE_ENABLED;
tbb[1].fsStyle = TBSTYLE_BUTTON;
tbb[2].iBitmap = STD_PASTE;
tbb[2].idCommand = IDS_PASTE;
tbb[2].fsState = TBSTATE_ENABLED;
tbb[2].fsStyle = TBSTYLE_BUTTON;
SendMessage(m_hWnd, TB_ADDBUTTONS, (WPARAM) 3, (LPARAM) (LPTBBUTTON) &tbb);
ShowWindow(m_hWnd, SW_NORMAL);
return TRUE;
}
I test it with SDI windows, it works well, but after I create the MDICLIENT(client) window, it sucks.
Please help me to work around this peculiar problem.
You COULD get all the source code at https://code.google.com/p/jcyangs-code/source/browse/trunk/com/lib/
Thanks.
Handle WM_SIZE message of Frame Window.

Core Text - NSAttributedString line height done right?

I'm completely in the dark with Core Text's line spacing. I'm using NSAttributedString and I specify the following attributes on it:
- kCTFontAttributeName
- kCTParagraphStyleAttributeName
From this the CTFrameSetter gets created and drawn to context.
In the paragraph style attribute I'd like to specify the height of the lines.
When I use kCTParagraphStyleSpecifierLineHeightMultiple each line receives padding at the top of the text, instead of the text being displayed in the middle of this height.
When I use kCTParagraphStyleSpecifierLineSpacing a padding is added to the bottom of the text.
Please help me achieve a specified line height with the text(glyphs) in the middle of that height, instead of the text sitting either at the bottom or the top of the line.
Is this not possible without going down the route of explicitly creating CTLine 's and so forth?
Objective-C
NSInteger strLength = [myString length];
NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
[style setLineSpacing:24];
[attString addAttribute:NSParagraphStyleAttributeName
value:style
range:NSMakeRange(0, strLength)];
Swift 5
let strLength = myString.length()
var style = NSMutableParagraphStyle()
style.lineSpacing = 24
attString.addAttribute(.paragraphStyle, value: style, range: NSRange(location: 0, length: strLength))
I'm still not 100% confident in my following statements, but it seems to make sense. Please correct me where I am wrong.
The line height (leading) refers to the distance between the baselines of successive lines of type. The baseline here can be interpreted as the imaginary line which the text sits on.
Spacing is the space between lines. The space appears after the line of text.
I ended up using the following solution to my problem:
// NOT SURE WHAT THE THEORY BEHIND THIS FACTOR IS. WAS FOUND VIA TRIAL AND ERROR.
CGFloat factor = 14.5/30.5;
CGFloat floatValues[4];
floatValues[0] = self.lineHeight * factor/(factor + 1);
floatValues[1] = self.lineHeight/(factor + 1);
floatValues[2] = self.lineHeight;
This matrix is used with the paragraph style parameter for NSAttributedString:
CTParagraphStyleSetting paragraphStyle[3];
paragraphStyle[0].spec = kCTParagraphStyleSpecifierLineSpacing;
paragraphStyle[0].valueSize = sizeof(CGFloat);
paragraphStyle[0].value = &floatValues[0];
paragraphStyle[1].spec = kCTParagraphStyleSpecifierMinimumLineHeight;
paragraphStyle[1].valueSize = sizeof(CGFloat);
paragraphStyle[1].value = &floatValues[1];
paragraphStyle[2].spec = kCTParagraphStyleSpecifierMaximumLineHeight;
paragraphStyle[2].valueSize = sizeof(CGFloat);
paragraphStyle[2].value = &floatValues[2];
CTParagraphStyleRef style = CTParagraphStyleCreate((const CTParagraphStyleSetting*) &paragraphStyle, 3);
[attributedString addAttribute:(NSString*)kCTParagraphStyleAttributeName value:(id)style range:NSMakeRange(0, [string length])];
CFRelease(style);
Hope this helps someone. I'll update this answer as I discover more relevant information.
In Swift 3:
let textFont = UIFont(name: "Helvetica Bold", size: 20)!
let textColor = UIColor(white: 1, alpha: 1) // White
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.paragraphSpacing = 20 // Paragraph Spacing
paragraphStyle.lineSpacing = 40 // Line Spacing
let textFontAttributes = [
NSFontAttributeName: textFont,
NSForegroundColorAttributeName: textColor,
NSParagraphStyleAttributeName: paragraphStyle
] as [String : Any]
You can set/update line spacing and line height multiple from storyboard as well as programatically.
From Interface Builder:
Programmatically:
SWift 4
extension UILabel {
// Pass value for any one of both parameters and see result
func setLineSpacing(lineSpacing: CGFloat = 0.0, lineHeightMultiple: CGFloat = 0.0) {
guard let labelText = self.text else { return }
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineSpacing = lineSpacing
paragraphStyle.lineHeightMultiple = lineHeightMultiple
let attributedString:NSMutableAttributedString
if let labelattributedText = self.attributedText {
attributedString = NSMutableAttributedString(attributedString: labelattributedText)
} else {
attributedString = NSMutableAttributedString(string: labelText)
}
// Line spacing attribute
// Swift 4.2++
attributedString.addAttribute(NSAttributedString.Key.paragraphStyle, value:paragraphStyle, range:NSMakeRange(0, attributedString.length))
// Swift 4.1--
attributedString.addAttribute(NSAttributedStringKey.paragraphStyle, value:paragraphStyle, range:NSMakeRange(0, attributedString.length))
self.attributedText = attributedString
}
}
Now call extension function
let label = UILabel()
let stringValue = "How to\ncontrol\nthe\nline spacing\nin UILabel"
// Pass value for any one argument - lineSpacing or lineHeightMultiple
label.setLineSpacing(lineSpacing: 2.0) . // try values 1.0 to 5.0
// or try lineHeightMultiple
//label.setLineSpacing(lineHeightMultiple = 2.0) // try values 0.5 to 2.0
Or using label instance (Just copy & execute this code to see result)
let label = UILabel()
let stringValue = "How to\ncontrol\nthe\nline spacing\nin UILabel"
let attrString = NSMutableAttributedString(string: stringValue)
var style = NSMutableParagraphStyle()
style.lineSpacing = 24 // change line spacing between paragraph like 36 or 48
style.minimumLineHeight = 20 // change line spacing between each line like 30 or 40
// Swift 4.2++
// Line spacing attribute
attrString.addAttribute(NSAttributedString.Key.paragraphStyle, value: style, range: NSRange(location: 0, length: stringValue.characters.count))
// Character spacing attribute
attrString.addAttribute(NSAttributedString.Key.kern, value: 2, range: NSMakeRange(0, attrString.length))
// Swift 4.1--
// Line spacing attribute
attrString.addAttribute(NSAttributedStringKey.paragraphStyle, value: style, range: NSRange(location: 0, length: stringValue.characters.count))
// Character spacing attribute
attrString.addAttribute(NSAttributedStringKey.kern, value: 2, range: NSMakeRange(0, attrString.length))
label.attributedText = attrString
Swift 3
let label = UILabel()
let stringValue = "How to\ncontrol\nthe\nline spacing\nin UILabel"
let attrString = NSMutableAttributedString(string: stringValue)
var style = NSMutableParagraphStyle()
style.lineSpacing = 24 // change line spacing between paragraph like 36 or 48
style.minimumLineHeight = 20 // change line spacing between each line like 30 or 40
attrString.addAttribute(NSParagraphStyleAttributeName, value: style, range: NSRange(location: 0, length: stringValue.characters.count))
label.attributedText = attrString
I tried all these answers, but to really get the EXACT line height that usually comes in design files from Sketch or Zeplin then you need to:
let ps = NSMutableParagraphStyle()
ps.minimumLineHeight = 34
ps.maximumLineHeight = 34
let attrText = NSAttributedString(
string: "Your long multiline text that will have exact line height spacing",
attributes: [
.paragraphStyle: ps
]
)
someLabel.attributedText = attrText
someLabel.numberOfLines = 2
...
I made an extension for this, see below. With the extension you can just set the line height like so:
let label = UILabel()
label.lineHeight = 19
This is the extension:
// Put this in a file called UILabel+Lineheight.swift, or whatever else you want to call it
import UIKit
extension UILabel {
var lineHeight: CGFloat {
set {
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.minimumLineHeight = newValue
paragraphStyle.maximumLineHeight = newValue
_setAttribute(key: NSAttributedString.Key.paragraphStyle, value: paragraphStyle)
}
get {
let paragraphStyle = _getAttribute(key: NSAttributedString.Key.paragraphStyle) as? NSParagraphStyle
return paragraphStyle?.minimumLineHeight ?? 0
}
}
func _getAttribute(key: NSAttributedString.Key) -> Any? {
return attributedText?.attribute(key, at: 0, effectiveRange: .none)
}
func _setAttribute(key: NSAttributedString.Key, value: Any) {
let attributedString: NSMutableAttributedString!
if let currentAttrString = attributedText {
attributedString = NSMutableAttributedString(attributedString: currentAttrString)
} else {
attributedString = NSMutableAttributedString(string: text ?? "")
text = nil
}
attributedString.addAttribute(key,
value: value,
range: NSRange(location: 0, length: attributedString.length))
attributedText = attributedString
}
}
Notes:
I don't like line height multiples. My design document contains a height, like 20, not a multiple.
lineSpacing as in some other answers is something totally different. Not what you want.
The reason there's an extra _set/_getAttribute method in there is that I use the same method for setting letter spacing. Could also be used for any other NSAttributedString values but seems like I'm good with just letter spacing (kerning in Swift/UIKit) and line height.
There are two properties of NSParagraphStyle that modify the height between successive text baselines in the same paragraph: lineSpacing and lineHeightMultiple. #Schoob is right that a lineHeightMultiple above 1.0 adds additional space above the text, while a lineSpacing above 0.0 adds space below the text. This diagram shows how the various dimensions are related.
To get the text to stay centred the aim is therefore to specify one in terms of the other, in such a way that any 'padding' we add by one attribute (top/bottom) is balanced by determining the other attribute's padding (bottom/top) to match. In other words, any extra space added is distributed evenly while otherwise preserving the text's existing positioning.
The nice thing is that this way you can choose which attribute you want to specify and then just determine the other:
extension UIFont
{
func lineSpacingToMatch(lineHeightMultiple: CGFloat) -> CGFloat {
return self.lineHeight * (lineHeightMultiple - 1)
}
func lineHeightMultipleToMatch(lineSpacing: CGFloat) -> CGFloat {
return 1 + lineSpacing / self.lineHeight
}
}
From here, other answers show how these two attributes can be set in an NSAttributedString, but this should answer how the two can be related to 'centre' the text.
Swift 4 & 5
extension NSAttributedString {
/// Returns a new instance of NSAttributedString with same contents and attributes with line spacing added.
/// - Parameter spacing: value for spacing you want to assign to the text.
/// - Returns: a new instance of NSAttributedString with given line spacing.
func withLineSpacing(_ spacing: CGFloat) -> NSAttributedString {
let attributedString = NSMutableAttributedString(attributedString: self)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineBreakMode = .byTruncatingTail
paragraphStyle.lineSpacing = spacing
attributedString.addAttribute(.paragraphStyle,
value: paragraphStyle,
range: NSRange(location: 0, length: string.count))
return NSAttributedString(attributedString: attributedString)
}
}
This worked for me in Xcode 7.2. iOS 9.2.1. (Swift 2.1.):
dispatch_async(dispatch_get_main_queue()) { () -> Void in
let paragraphStyleWithSpacing = NSMutableParagraphStyle()
paragraphStyleWithSpacing.lineSpacing = 2.0 //CGFloat
let textWithLineSpacing = NSAttributedString(string: str, attributes: [NSParagraphStyleAttributeName : paragraphStyleWithSpacing])
self.MY_TEXT_VIEW_NAME.attributedText = textWithLineSpacing
}
Another way of twerking with a NSAttributedString line position is playing with
baselineOffset attribute:
let contentText = NSMutableAttributedString(
string: "I see\nI'd think it`d be both a notification and a\nplace to see past announcements\nLike a one way chat.")
contentText.addAttribute(.baselineOffset, value: 10, range: NSRange(location: 0, length: 5))
contentText.addAttribute(.baselineOffset, value: -10, range: NSRange(location: 85, length: 20))
Result:
"I see
I'd think it`d be both a notification and a
place to see past announcements
Like a one way chat."
https://stackoverflow.com/a/55876401/4683601

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