Jak Mogę zmienić kolor tintColor obrazu w Ios i WatchKit
Mam interfejs o nazwie "theImageView" , z interfejsem W Jednym Kolorze (przezroczyste tło), tak jak lewe czarne serce poniżej. Jak mogę programowo zmienić kolor tint tego obrazu w systemie iOS 7 lub nowszym, zgodnie z metodą tint używaną w ikonach paska nawigacyjnego iOS 7+?
Czy ta metoda działa również w WatchKit dla aplikacji Apple Obserwować?
18 answers
IOS
W przypadku aplikacji na iOS, w Swift 3 lub 4:
theImageView.image = theImageView.image!.withRenderingMode(.alwaysTemplate)
theImageView.tintColor = UIColor.red
Swift 2:
theImageView.image = theImageView.image!.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
theImageView.tintColor = UIColor.redColor()
Tymczasem nowoczesne rozwiązanie Objective-C to:
theImageView.image = [theImageView.image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
[theImageView setTintColor:[UIColor redColor]];
Watchkit
W WatchKit dla aplikacji Apple Watch można ustawić Odcień dla obrazu szablonu.
- musisz dodać obraz do katalogu zasobów w aplikacji WatchKit i ustawić obraz, który ma być renderowany Jako obraz szablonu w Inspektorze atrybutów. W przeciwieństwie do aplikacji na iPhone ' a, obecnie nie można ustawić renderowania szablonu w kodzie w rozszerzeniu WatchKit.
- Ustaw ten obraz, aby był używany w Twoim WKInterfaceImage w kreatorze interfejsów dla Twojej aplikacji
- Utwórz IBOutlet w kontrolerze Wkinterface dla interfejsu WKInterfaceImage o nazwie 'theImage'...
Aby następnie ustawić kolor tinty w Swift 3 lub 4:
theImage.setTintColor(UIColor.red)
Swift 2:
theImage.setTintColor(UIColor.redColor())
Aby następnie ustawić kolor tinty w Objective-C:
[self.theImage setTintColor:[UIColor redColor]];
Jeśli używasz obrazka szablonu i nie zastosuj kolor tint, Globalny odcień dla aplikacji WatchKit zostanie zastosowany. Jeśli nie ustawiono odcienia globalnego, theImage
będzie domyślnie przyciemniane jasnoniebiesko, gdy będzie używane jako obraz szablonu.
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2018-04-13 22:48:04
Oto kategoria, która powinna zadziałać
@interface UIImage(Overlay)
@end
@implementation UIImage(Overlay)
- (UIImage *)imageWithColor:(UIColor *)color1
{
UIGraphicsBeginImageContextWithOptions(self.size, NO, self.scale);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextTranslateCTM(context, 0, self.size.height);
CGContextScaleCTM(context, 1.0, -1.0);
CGContextSetBlendMode(context, kCGBlendModeNormal);
CGRect rect = CGRectMake(0, 0, self.size.width, self.size.height);
CGContextClipToMask(context, rect, self.CGImage);
[color1 setFill];
CGContextFillRect(context, rect);
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
@end
Więc zrobiłbyś:
theImageView.image = [theImageView.image imageWithColor:[UIColor redColor]];
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2013-10-09 14:37:21
Musiałem to zrobić w Swift używając extension
.
Pomyślałem, że podzielę się tym, jak to zrobiłem:
extension UIImage {
func imageWithColor(color1: UIColor) -> UIImage {
UIGraphicsBeginImageContextWithOptions(self.size, false, self.scale)
color1.setFill()
let context = UIGraphicsGetCurrentContext() as CGContextRef
CGContextTranslateCTM(context, 0, self.size.height)
CGContextScaleCTM(context, 1.0, -1.0);
CGContextSetBlendMode(context, CGBlendMode.Normal)
let rect = CGRectMake(0, 0, self.size.width, self.size.height) as CGRect
CGContextClipToMask(context, rect, self.CGImage)
CGContextFillRect(context, rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext() as UIImage
UIGraphicsEndImageContext()
return newImage
}
}
Użycie:
theImageView.image = theImageView.image.imageWithColor(UIColor.redColor())
Swift 4
extension UIImage {
func imageWithColor(color1: UIColor) -> UIImage {
UIGraphicsBeginImageContextWithOptions(self.size, false, self.scale)
color1.setFill()
let context = UIGraphicsGetCurrentContext()
context?.translateBy(x: 0, y: self.size.height)
context?.scaleBy(x: 1.0, y: -1.0)
context?.setBlendMode(CGBlendMode.normal)
let rect = CGRect(origin: .zero, size: CGSize(width: self.size.width, height: self.size.height))
context?.clip(to: rect, mask: self.cgImage!)
context?.fill(rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage!
}
}
Użycie:
theImageView.image = theImageView.image?.imageWithColor(color1: UIColor.red)
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2018-04-27 01:27:26
W zasobach storyboard i image. możesz również zmienić te dwa:
Zaktualizuj tryb renderowania do obrazu szablonu
Zaktualizuj kolor tinty w widokach.
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2015-09-09 03:46:32
Zmień odcień obrazu ( obraz, klasyczny obraz, zdjęcie ) Użyj tego:
Funkcja Tintimage Swift 3 :
import UIKit
// MARK: - Extensions UIImage
public extension UIImage {
/// Tint, Colorize image with given tint color
/// This is similar to Photoshop's "Color" layer blend mode
/// This is perfect for non-greyscale source images, and images that
/// have both highlights and shadows that should be preserved<br><br>
/// white will stay white and black will stay black as the lightness of
/// the image is preserved
///
/// - Parameter TintColor: Tint color
/// - Returns: Tinted image
public func tintImage(with fillColor: UIColor) -> UIImage {
return modifiedImage { context, rect in
// draw black background - workaround to preserve color of partially transparent pixels
context.setBlendMode(.normal)
UIColor.black.setFill()
context.fill(rect)
// draw original image
context.setBlendMode(.normal)
context.draw(cgImage!, in: rect)
// tint image (loosing alpha) - the luminosity of the original image is preserved
context.setBlendMode(.color)
fillColor.setFill()
context.fill(rect)
// mask by alpha values of original image
context.setBlendMode(.destinationIn)
context.draw(context.makeImage()!, in: rect)
}
}
/// Tint pictogram with color
/// Method work on single colors without fading, mainly for svg images
///
/// - Parameter fillColor: TintColor: Tint color
/// - Returns: Tinted image
public func tintPictogram(with fillColor: UIColor) -> UIImage {
return modifiedImage { context, rect in
// draw tint color
context.setBlendMode(.normal)
fillColor.setFill()
context.fill(rect)
// mask by alpha values of original image
context.setBlendMode(.destinationIn)
context.draw(cgImage!, in: rect)
}
}
/// Modified Image Context, apply modification on image
///
/// - Parameter draw: (CGContext, CGRect) -> ())
/// - Returns: UIImage
fileprivate func modifiedImage(_ draw: (CGContext, CGRect) -> ()) -> UIImage {
// using scale correctly preserves retina images
UIGraphicsBeginImageContextWithOptions(size, false, scale)
let context: CGContext! = UIGraphicsGetCurrentContext()
assert(context != nil)
// correctly rotate image
context.translateBy(x: 0, y: size.height)
context.scaleBy(x: 1.0, y: -1.0)
let rect = CGRect(x: 0.0, y: 0.0, width: size.width, height: size.height)
draw(context, rect)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image!
}
}
}
Zmień odcień obrazu ( SVG, unikalny kolor) Użyj go z obrazem szablonu w zasobie :
Funkcja tintPictogram Swift 3:
import UIKit
// MARK: - Extensions UIImage
public extension UIImage {
/// Tint pictogram with color
/// Method work on single colors without fading, mainly for svg images
///
/// - Parameter fillColor: TintColor: Tint color
/// - Returns: Tinted image
public func tintPictogram(with fillColor: UIColor) -> UIImage {
return modifiedImage { context, rect in
// draw tint color
context.setBlendMode(.normal)
fillColor.setFill()
context.fill(rect)
// mask by alpha values of original image
context.setBlendMode(.destinationIn)
context.draw(cgImage!, in: rect)
}
}
/// Modified Image Context, apply modification on image
///
/// - Parameter draw: (CGContext, CGRect) -> ())
/// - Returns: UIImage
fileprivate func modifiedImage(_ draw: (CGContext, CGRect) -> ()) -> UIImage {
// using scale correctly preserves retina images
UIGraphicsBeginImageContextWithOptions(size, false, scale)
let context: CGContext! = UIGraphicsGetCurrentContext()
assert(context != nil)
// correctly rotate image
context.translateBy(x: 0, y: size.height)
context.scaleBy(x: 1.0, y: -1.0)
let rect = CGRect(x: 0.0, y: 0.0, width: size.width, height: size.height)
draw(context, rect)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image!
}
}
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2017-09-08 11:40:12
Jeśli komuś zależy na rozwiązaniu bez UIImageView
:
// (Swift 3)
extension UIImage {
func tint(with color: UIColor) -> UIImage {
var image = withRenderingMode(.alwaysTemplate)
UIGraphicsBeginImageContextWithOptions(size, false, scale)
color.set()
image.draw(in: CGRect(origin: .zero, size: size))
image = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext()
return image
}
}
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2017-01-17 02:19:09
With Swift
let commentImageView = UIImageView(frame: CGRectMake(100, 100, 100, 100))
commentImageView.image = UIImage(named: "myimage.png")!.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
commentImageView.tintColor = UIColor.blackColor()
addSubview(commentImageView)
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2014-11-23 16:35:00
Spróbuj tego
Http://robots.thoughtbot.com/designing-for-ios-blending-modes
Lub
- (void)viewDidLoad
{
[super viewDidLoad];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 30, 300, 50)];
label.numberOfLines = 0;
label.font = [UIFont systemFontOfSize:13];
label.text = @"These checkmarks use the same gray checkmark image with a tintColor applied to the image view";
[self.view addSubview:label];
[self _createImageViewAtY:100 color:[UIColor purpleColor]];
}
- (void)_createImageViewAtY:(int)y color:(UIColor *)color {
UIImage *image = [[UIImage imageNamed:@"gray checkmark.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
CGRect frame = imageView.frame;
frame.origin.x = 100;
frame.origin.y = y;
imageView.frame = frame;
if (color)
imageView.tintColor = color;
[self.view addSubview:imageView];
}
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2015-12-21 06:37:59
Do celów swift 3
theImageView.image = theImageView.image!.withRenderingMode(.alwaysTemplate)
theImageView.tintColor = UIColor.red
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2016-09-01 19:15:09
Skorzystaj z rozszerzenia w Swift :-
extension UIImageView {
func changeImageColor( color:UIColor) -> UIImage
{
image = image!.withRenderingMode(.alwaysTemplate)
tintColor = color
return image!
}
}
//Change color of logo
logoImage.image = logoImage.changeImageColor(color: .red)
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2016-12-14 17:53:15
IOS
Rozwiązanie do robienia tego z InterfaceBuilder, Ustaw templateImage param w klawiaturze i wybierz kolor tint z IB
extension UIImageView {
// make template image with tint color
var templateImage: Bool {
set {
if newValue, let image = self.image {
let newImage = image.withRenderingMode(.alwaysTemplate)
self.image = newImage
}
} get {
return false
}
}
}
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2017-03-31 12:47:02
Teraz używam tej metody opartej na odpowiedzi Duncana Babbage ' a:
+ (UIImageView *) tintImageView: (UIImageView *)imageView withColor: (UIColor*) color{
imageView.image = [imageView.image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
[imageView setTintColor:color];
return imageView;
}
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2016-06-06 13:27:25
Możesz użyć tego w Swift 3, Jeśli masz obraz, który zastąpi przycisk Wyczyść
func addTextfieldRightView(){
let rightViewWidth:CGFloat = 30
let viewMax = self.searchTxt.frame.height
let buttonMax = self.searchTxt.frame.height - 16
let buttonView = UIView(frame: CGRect(
x: self.searchTxt.frame.width - rightViewWidth,
y: 0,
width: viewMax,
height: viewMax))
let myButton = UIButton(frame: CGRect(
x: (viewMax - buttonMax) / 2,
y: (viewMax - buttonMax) / 2,
width: buttonMax,
height: buttonMax))
myButton.setImage(UIImage(named: "BlueClear")!, for: .normal)
buttonView.addSubview(myButton)
let clearPressed = UITapGestureRecognizer(target: self, action: #selector(SearchVC.clearPressed(sender:)))
buttonView.isUserInteractionEnabled = true
buttonView.addGestureRecognizer(clearPressed)
myButton.addTarget(self, action: #selector(SearchVC.clearPressed(sender:)), for: .touchUpInside)
self.searchTxt.rightView = buttonView
self.searchTxt.rightViewMode = .whileEditing
}
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2016-11-30 15:45:59
Podklasa, która może być używana również z Kreatora kodu i interfejsu:
@implementation TintedImageView
- (instancetype)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
[self setup];
}
return self;
}
- (instancetype)initWithCoder:(NSCoder *)aDecoder {
self = [super initWithCoder:aDecoder];
if (self) {
[self setup];
}
return self;
}
-(void)setup {
self.image = [self.image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
}
@end
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2017-01-25 16:16:19
To jest moje rozszerzenie UIImage i możesz bezpośrednio użyć funkcji changeTintColor dla obrazu.
extension UIImage {
func changeTintColor(color: UIColor) -> UIImage {
var newImage = self.withRenderingMode(.alwaysTemplate)
UIGraphicsBeginImageContextWithOptions(self.size, false, newImage.scale)
color.set()
newImage.draw(in: CGRect(x: 0.0, y: 0.0, width: self.size.width, height: self.size.height))
newImage = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext()
return newImage
}
func changeColor(color: UIColor) -> UIImage {
let backgroundSize = self.size
UIGraphicsBeginImageContext(backgroundSize)
guard let context = UIGraphicsGetCurrentContext() else {
return self
}
var backgroundRect = CGRect()
backgroundRect.size = backgroundSize
backgroundRect.origin.x = 0
backgroundRect.origin.y = 0
var red: CGFloat = 0
var green: CGFloat = 0
var blue: CGFloat = 0
var alpha: CGFloat = 0
color.getRed(&red, green: &green, blue: &blue, alpha: &alpha)
context.setFillColor(red: red, green: green, blue: blue, alpha: alpha)
context.translateBy(x: 0, y: backgroundSize.height)
context.scaleBy(x: 1.0, y: -1.0)
context.clip(to: CGRect(x: 0.0, y: 0.0, width: self.size.width, height: self.size.height),
mask: self.cgImage!)
context.fill(backgroundRect)
var imageRect = CGRect()
imageRect.size = self.size
imageRect.origin.x = (backgroundSize.width - self.size.width) / 2
imageRect.origin.y = (backgroundSize.height - self.size.height) / 2
context.setBlendMode(.multiply)
context.draw(self.cgImage!, in: imageRect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage!
}
}
Przykładowe użycie w ten sposób
let image = UIImage(named: "sample_image")
imageView.image = image.changeTintColor(color: UIColor.red)
I możesz użyć funkcji change changeColor
, aby zmienić kolor obrazu
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2017-03-31 15:58:52
Swift 3
wersja rozszerzenia odpowiedzi z fuzz
func imageWithColor(color: UIColor) -> UIImage {
UIGraphicsBeginImageContextWithOptions(self.size, false, self.scale)
color.setFill()
let context = UIGraphicsGetCurrentContext()! as CGContext
context.translateBy(x: 0, y: self.size.height)
context.scaleBy(x: 1.0, y: -1.0);
context.setBlendMode(.normal)
let rect = CGRect(x: 0, y: 0, width: self.size.width, height: self.size.height) as CGRect
context.clip(to: rect, mask: self.cgImage!)
context.fill(rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()! as UIImage
UIGraphicsEndImageContext()
return newImage
}
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2017-06-15 04:14:59
Do przyciemniania obrazu UIButton
let image1 = "ic_shopping_cart_empty"
btn_Basket.setImage(UIImage(named: image1)?.withRenderingMode(.alwaysTemplate), for: .normal)
btn_Basket.setImage(UIImage(named: image1)?.withRenderingMode(.alwaysTemplate), for: .selected)
btn_Basket.imageView?.tintColor = UIColor(UIColor.Red)
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2018-04-15 13:26:27
ProfileImageView.image = theImageView.obraz!.withRenderingMode(.alwaysTemplate)
profileImageView./ - bgcolor = "UIColor"zielony
Lub
Najpierw wybierz konkretny obraz w zasobie obrazu, a następnie wybierz reddened jako szablon zamiast domyślnego i po tej linii zapisu. profileImageView./ - bgcolor = "UIColor"zielony
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2017-12-10 09:08:45