Displaying a message in iOS which has the same functionality as Toast in Android
我需要知道iOS中是否有任何方法的行为类似于Android中的Toast消息。 也就是说,我需要显示一条消息,几秒钟后会自动将其关闭。 这类似于Android环境中Toast类的功能。
您可以使用
将HUD模式
1 2 3 4 5 6 7 8 9 10 | MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.navigationController.view animated:YES]; // Configure for text only and offset down hud.mode = MBProgressHUDModeText; hud.label.text = @"Some message..."; hud.margin = 10.f; hud.yOffset = 150.f; hud.removeFromSuperViewOnHide = YES; [hud hideAnimated:YES afterDelay:3]; |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | NSString *message = @"Some message..."; UIAlertView *toast = [[UIAlertView alloc] initWithTitle:nil message:message delegate:nil cancelButtonTitle:nil otherButtonTitles:nil, nil]; [toast show]; int duration = 1; // duration in seconds dispatch_after(dispatch_time(DISPATCH_TIME_NOW, duration * NSEC_PER_SEC), dispatch_get_main_queue(), ^{ [toast dismissWithClickedButtonIndex:0 animated:YES]; }); |
使用iOS 9或更高版本的UIAlertViewController
1 2 3 4 5 6 7 8 9 10 11 12 13 | NSString *message = @"Some message..."; UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:message preferredStyle:UIAlertControllerStyleAlert]; [self presentViewController:alert animated:YES completion:nil]; int duration = 1; // duration in seconds dispatch_after(dispatch_time(DISPATCH_TIME_NOW, duration * NSEC_PER_SEC), dispatch_get_main_queue(), ^{ [alert dismissViewControllerAnimated:YES completion:nil]; }); |
迅捷3.2
1 2 3 4 5 6 7 8 9 10 | let message ="Some message..." let alert = UIAlertController(title: nil, message: message, preferredStyle: .alert) self.present(alert, animated: true) // duration in seconds let duration: Double = 5 DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + duration) { alert.dismiss(animated: true) } |
在Android中,Toast是一条短消息,它会在屏幕上显示一小段时间,然后自动消失,而不会干扰用户与该应用的交互。
因此,许多来自Android背景的人都想知道Toast的iOS版本是什么。除了当前问题,还可以在此处,此处和此处找到其他类似的问题。答案是在iOS中没有与Toast完全相同的东西。但是,已经提出了各种解决方法,包括
-
用
UIView 制作自己的Toast(请参见此处,此处,此处和此处) - 导入模仿Toast的第三方项目(请参见此处,此处,此处和此处)
- 使用带有计时器的无按钮警报(请参阅此处)
但是,我的建议是坚持使用iOS随附的标准UI选项。不要试图使您的应用外观和行为与Android版本完全相同。考虑如何重新包装它,使其外观和感觉像一个iOS应用程序。有关某些选择,请参见以下链接。
- 用于临时向用户显示信息的标准iOS选项概述。
考虑以传达相同信息的方式重新设计UI。或者,如果信息非常重要,那么警报可能是答案。
斯威夫特4
这个小把戏怎么样?
1 2 3 4 5 6 7 8 9 10 11 12 | func showToast(controller: UIViewController, message : String, seconds: Double) { let alert = UIAlertController(title: nil, message: message, preferredStyle: .alert) alert.view.backgroundColor = UIColor.black alert.view.alpha = 0.6 alert.view.layer.cornerRadius = 15 controller.present(alert, animated: true) DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + seconds) { alert.dismiss(animated: true) } } |
调用示例:
1 | showToast(controller: self, message :"This is a test", seconds: 2.0) |
迅捷3
对于没有第三方代码的简单解决方案:
只需使用普通的UIAlertController,但使用style = actionSheet(请看下面的代码)
1 2 3 4 5 6 | let alertDisapperTimeInSeconds = 2.0 let alert = UIAlertController(title: nil, message:"Toast!", preferredStyle: .actionSheet) self.present(alert, animated: true) DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + alertDisapperTimeInSeconds) { alert.dismiss(animated: true) } |
该解决方案的优势:
对于Swift 3和4:
使用烤面包机库
1 | Toast(text:"Hello, world!", duration: Delay.long) |
对于Swift 2:
使用JLToast
Swift 4.0:
制作一个新的swift文件。 (文件新文件空的Swift文件)。将其命名为UIViewToast。添加以下代码。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 | import UIKit func /(lhs: CGFloat, rhs: Int) -> CGFloat { return lhs / CGFloat(rhs) } let HRToastDefaultDuration = 2.0 let HRToastFadeDuration = 0.2 let HRToastHorizontalMargin : CGFloat = 10.0 let HRToastVerticalMargin : CGFloat = 10.0 let HRToastPositionDefault = "bottom" let HRToastPositionTop = "top" let HRToastPositionCenter = "center" // activity let HRToastActivityWidth : CGFloat = 100.0 let HRToastActivityHeight : CGFloat = 100.0 let HRToastActivityPositionDefault ="center" // image size let HRToastImageViewWidth : CGFloat = 80.0 let HRToastImageViewHeight: CGFloat = 80.0 // label setting let HRToastMaxWidth : CGFloat = 0.8; // 80% of parent view width let HRToastMaxHeight : CGFloat = 0.8; let HRToastFontSize : CGFloat = 16.0 let HRToastMaxTitleLines = 0 let HRToastMaxMessageLines = 0 // shadow appearance let HRToastShadowOpacity : CGFloat = 0.8 let HRToastShadowRadius : CGFloat = 6.0 let HRToastShadowOffset : CGSize = CGSize(width: 4.0, height: 4.0) let HRToastOpacity : CGFloat = 0.5 let HRToastCornerRadius : CGFloat = 10.0 var HRToastActivityView: UnsafePointer<UIView>? var HRToastTimer: UnsafePointer<Timer>? var HRToastView: UnsafePointer<UIView>? // Color Scheme let HRAppColor:UIColor = UIColor.black//UIappViewController().appUIColor let HRAppColor_2:UIColor = UIColor.white let HRToastHidesOnTap = true let HRToastDisplayShadow = false //HRToast (UIView + Toast using Swift) extension UIView { //public methods func makeToast(message msg: String) { self.makeToast(message: msg, duration: HRToastDefaultDuration, position: HRToastPositionDefault as AnyObject) } func makeToast(message msg: String, duration: Double, position: AnyObject) { let toast = self.viewForMessage(msg: msg, title: nil, image: nil) self.showToast(toast: toast!, duration: duration, position: position) } func makeToast(message msg: String, duration: Double, position: AnyObject, title: String) { let toast = self.viewForMessage(msg: msg, title: title, image: nil) self.showToast(toast: toast!, duration: duration, position: position) } func makeToast(message msg: String, duration: Double, position: AnyObject, image: UIImage) { let toast = self.viewForMessage(msg: msg, title: nil, image: image) self.showToast(toast: toast!, duration: duration, position: position) } func makeToast(message msg: String, duration: Double, position: AnyObject, title: String, image: UIImage) { let toast = self.viewForMessage(msg: msg, title: title, image: image) self.showToast(toast: toast!, duration: duration, position: position) } func showToast(toast: UIView) { self.showToast(toast: toast, duration: HRToastDefaultDuration, position: HRToastPositionDefault as AnyObject) } func showToast(toast: UIView, duration: Double, position: AnyObject) { let existToast = objc_getAssociatedObject(self, &HRToastView) as! UIView? if existToast != nil { if let timer: Timer = objc_getAssociatedObject(existToast!, &HRToastTimer) as? Timer { timer.invalidate(); } self.hideToast(toast: existToast!, force: false); } toast.center = self.centerPointForPosition(position: position, toast: toast) toast.alpha = 0.0 if HRToastHidesOnTap { let tapRecognizer = UITapGestureRecognizer(target: toast, action: #selector(handleToastTapped(recognizer:))) toast.addGestureRecognizer(tapRecognizer) toast.isUserInteractionEnabled = true; toast.isExclusiveTouch = true; } self.addSubview(toast) objc_setAssociatedObject(self, &HRToastView, toast, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN) UIView.animate(withDuration: HRToastFadeDuration, delay: 0.0, options: ([.curveEaseOut, .allowUserInteraction]), animations: { toast.alpha = 1.0 }, completion: { (finished: Bool) in let timer = Timer.scheduledTimer(timeInterval: duration, target: self, selector: #selector(self.toastTimerDidFinish(timer:)), userInfo: toast, repeats: false) objc_setAssociatedObject(toast, &HRToastTimer, timer, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC) }) } func makeToastActivity() { self.makeToastActivity(position: HRToastActivityPositionDefault as AnyObject) } func showToastActivity() { self.isUserInteractionEnabled = false self.makeToastActivity() } func removeToastActivity() { self.isUserInteractionEnabled = true self.hideToastActivity() } func makeToastActivityWithMessage(message msg: String){ self.makeToastActivity(position: HRToastActivityPositionDefault as AnyObject, message: msg) } func makeToastActivityWithMessage(message msg: String,addOverlay: Bool){ self.makeToastActivity(position: HRToastActivityPositionDefault as AnyObject, message: msg,addOverlay: true) } func makeToastActivity(position pos: AnyObject, message msg: String ="",addOverlay overlay: Bool = false) { let existingActivityView: UIView? = objc_getAssociatedObject(self, &HRToastActivityView) as? UIView if existingActivityView != nil { return } let activityView = UIView(frame: CGRect(x:0, y:0, width: self.frame.width, height: self.frame.height)) activityView.center = self.centerPointForPosition(position: pos, toast: activityView) activityView.alpha = 0.0 activityView.autoresizingMask = ([.flexibleLeftMargin, .flexibleTopMargin, .flexibleRightMargin, .flexibleBottomMargin]) activityView.layer.cornerRadius = HRToastCornerRadius if HRToastDisplayShadow { activityView.layer.shadowColor = UIColor.black.cgColor activityView.layer.shadowOpacity = Float(HRToastShadowOpacity) activityView.layer.shadowRadius = HRToastShadowRadius activityView.layer.shadowOffset = HRToastShadowOffset } let activityIndicatorView = UIActivityIndicatorView(activityIndicatorStyle: .whiteLarge) activityIndicatorView.center = CGPoint(x:activityView.bounds.size.width / 2, y: activityView.bounds.size.height / 2) activityIndicatorView.color = HRAppColor activityView.addSubview(activityIndicatorView) activityIndicatorView.startAnimating() if (!msg.isEmpty){ activityIndicatorView.frame.origin.y -= 10 let activityMessageLabel = UILabel(frame: CGRect(x: activityView.bounds.origin.x, y: (activityIndicatorView.frame.origin.y + activityIndicatorView.frame.size.height + 10), width: activityView.bounds.size.width, height: 20)) activityMessageLabel.textColor = UIColor.white activityMessageLabel.font = (msg.count<=10) ? UIFont(name:activityMessageLabel.font.fontName, size: 16) : UIFont(name:activityMessageLabel.font.fontName, size: 16) activityMessageLabel.textAlignment = .center activityMessageLabel.text = msg +".." if overlay { activityMessageLabel.textColor = UIColor.white activityView.backgroundColor = HRAppColor.withAlphaComponent(HRToastOpacity) activityIndicatorView.color = UIColor.white } else { activityMessageLabel.textColor = HRAppColor activityView.backgroundColor = UIColor.clear activityIndicatorView.color = HRAppColor } activityView.addSubview(activityMessageLabel) } self.addSubview(activityView) // associate activity view with self objc_setAssociatedObject(self, &HRToastActivityView, activityView, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC) UIView.animate(withDuration: HRToastFadeDuration, delay: 0.0, options: UIViewAnimationOptions.curveEaseOut, animations: { activityView.alpha = 1.0 }, completion: nil) self.isUserInteractionEnabled = false } func hideToastActivity() { self.isUserInteractionEnabled = true let existingActivityView = objc_getAssociatedObject(self, &HRToastActivityView) as! UIView? if existingActivityView == nil { return } UIView.animate(withDuration: HRToastFadeDuration, delay: 0.0, options: UIViewAnimationOptions.curveEaseOut, animations: { existingActivityView!.alpha = 0.0 }, completion: { (finished: Bool) in existingActivityView!.removeFromSuperview() objc_setAssociatedObject(self, &HRToastActivityView, nil, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC) }) } /* * private methods (helper) */ func hideToast(toast: UIView) { self.isUserInteractionEnabled = true self.hideToast(toast: toast, force: false); } func hideToast(toast: UIView, force: Bool) { let completeClosure = { (finish: Bool) -> () in toast.removeFromSuperview() objc_setAssociatedObject(self, &HRToastTimer, nil, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC) } if force { completeClosure(true) } else { UIView.animate(withDuration: HRToastFadeDuration, delay: 0.0, options: ([.curveEaseIn, .beginFromCurrentState]), animations: { toast.alpha = 0.0 }, completion:completeClosure) } } @objc func toastTimerDidFinish(timer: Timer) { self.hideToast(toast: timer.userInfo as! UIView) } @objc func handleToastTapped(recognizer: UITapGestureRecognizer) { // var timer = objc_getAssociatedObject(self, &HRToastTimer) as! NSTimer // timer.invalidate() self.hideToast(toast: recognizer.view!) } func centerPointForPosition(position: AnyObject, toast: UIView) -> CGPoint { if position is String { let toastSize = toast.bounds.size let viewSize = self.bounds.size if position.lowercased == HRToastPositionTop { return CGPoint(x: viewSize.width/2, y: toastSize.height/2 + HRToastVerticalMargin) } else if position.lowercased == HRToastPositionDefault { return CGPoint(x:viewSize.width/2, y:viewSize.height - toastSize.height - 15 - HRToastVerticalMargin) } else if position.lowercased == HRToastPositionCenter { return CGPoint(x:viewSize.width/2, y:viewSize.height/2) } } else if position is NSValue { return position.cgPointValue } print("Warning: Invalid position for toast.") return self.centerPointForPosition(position: HRToastPositionDefault as AnyObject, toast: toast) } func viewForMessage(msg: String?, title: String?, image: UIImage?) -> UIView? { if msg == nil && title == nil && image == nil { return nil } var msgLabel: UILabel? var titleLabel: UILabel? var imageView: UIImageView? let wrapperView = UIView() wrapperView.autoresizingMask = ([.flexibleLeftMargin, .flexibleRightMargin, .flexibleTopMargin, .flexibleBottomMargin]) wrapperView.layer.cornerRadius = HRToastCornerRadius wrapperView.backgroundColor = UIColor.black.withAlphaComponent(HRToastOpacity) if HRToastDisplayShadow { wrapperView.layer.shadowColor = UIColor.black.cgColor wrapperView.layer.shadowOpacity = Float(HRToastShadowOpacity) wrapperView.layer.shadowRadius = HRToastShadowRadius wrapperView.layer.shadowOffset = HRToastShadowOffset } if image != nil { imageView = UIImageView(image: image) imageView!.contentMode = .scaleAspectFit imageView!.frame = CGRect(x:HRToastHorizontalMargin, y: HRToastVerticalMargin, width: CGFloat(HRToastImageViewWidth), height: CGFloat(HRToastImageViewHeight)) } var imageWidth: CGFloat, imageHeight: CGFloat, imageLeft: CGFloat if imageView != nil { imageWidth = imageView!.bounds.size.width imageHeight = imageView!.bounds.size.height imageLeft = HRToastHorizontalMargin } else { imageWidth = 0.0; imageHeight = 0.0; imageLeft = 0.0 } if title != nil { titleLabel = UILabel() titleLabel!.numberOfLines = HRToastMaxTitleLines titleLabel!.font = UIFont.boldSystemFont(ofSize: HRToastFontSize) titleLabel!.textAlignment = .center titleLabel!.lineBreakMode = .byWordWrapping titleLabel!.textColor = UIColor.white titleLabel!.backgroundColor = UIColor.clear titleLabel!.alpha = 1.0 titleLabel!.text = title // size the title label according to the length of the text let maxSizeTitle = CGSize(width: (self.bounds.size.width * HRToastMaxWidth) - imageWidth, height: self.bounds.size.height * HRToastMaxHeight) let expectedHeight = title!.stringHeightWithFontSize(fontSize: HRToastFontSize, width: maxSizeTitle.width) titleLabel!.frame = CGRect(x: 0.0, y: 0.0, width: maxSizeTitle.width, height: expectedHeight) } if msg != nil { msgLabel = UILabel(); msgLabel!.numberOfLines = HRToastMaxMessageLines msgLabel!.font = UIFont.systemFont(ofSize: HRToastFontSize) msgLabel!.lineBreakMode = .byWordWrapping msgLabel!.textAlignment = .center msgLabel!.textColor = UIColor.white msgLabel!.backgroundColor = UIColor.clear msgLabel!.alpha = 1.0 msgLabel!.text = msg let maxSizeMessage = CGSize(width: (self.bounds.size.width * HRToastMaxWidth) - imageWidth, height: self.bounds.size.height * HRToastMaxHeight) let expectedHeight = msg!.stringHeightWithFontSize(fontSize: HRToastFontSize, width: maxSizeMessage.width) msgLabel!.frame = CGRect(x: 0.0, y: 0.0, width: maxSizeMessage.width, height: expectedHeight) } var titleWidth: CGFloat, titleHeight: CGFloat, titleTop: CGFloat, titleLeft: CGFloat if titleLabel != nil { titleWidth = titleLabel!.bounds.size.width titleHeight = titleLabel!.bounds.size.height titleTop = HRToastVerticalMargin titleLeft = imageLeft + imageWidth + HRToastHorizontalMargin } else { titleWidth = 0.0; titleHeight = 0.0; titleTop = 0.0; titleLeft = 0.0 } var msgWidth: CGFloat, msgHeight: CGFloat, msgTop: CGFloat, msgLeft: CGFloat if msgLabel != nil { msgWidth = msgLabel!.bounds.size.width msgHeight = msgLabel!.bounds.size.height msgTop = titleTop + titleHeight + HRToastVerticalMargin msgLeft = imageLeft + imageWidth + HRToastHorizontalMargin } else { msgWidth = 0.0; msgHeight = 0.0; msgTop = 0.0; msgLeft = 0.0 } let largerWidth = max(titleWidth, msgWidth) let largerLeft = max(titleLeft, msgLeft) // set wrapper view's frame let wrapperWidth = max(imageWidth + HRToastHorizontalMargin * 2, largerLeft + largerWidth + HRToastHorizontalMargin) let wrapperHeight = max(msgTop + msgHeight + HRToastVerticalMargin, imageHeight + HRToastVerticalMargin * 2) wrapperView.frame = CGRect(x: 0.0, y: 0.0, width: wrapperWidth, height: wrapperHeight) // add subviews if titleLabel != nil { titleLabel!.frame = CGRect(x: titleLeft, y: titleTop, width: titleWidth, height: titleHeight) wrapperView.addSubview(titleLabel!) } if msgLabel != nil { msgLabel!.frame = CGRect(x: msgLeft, y: msgTop, width: msgWidth, height: msgHeight) wrapperView.addSubview(msgLabel!) } if imageView != nil { wrapperView.addSubview(imageView!) } return wrapperView } } extension String { func stringHeightWithFontSize(fontSize: CGFloat,width: CGFloat) -> CGFloat { let font = UIFont.systemFont(ofSize: fontSize) let size = CGSize(width: width, height: CGFloat.greatestFiniteMagnitude) let paragraphStyle = NSMutableParagraphStyle() paragraphStyle.lineBreakMode = .byWordWrapping; let attributes = [NSAttributedStringKey.font:font, NSAttributedStringKey.paragraphStyle:paragraphStyle.copy()] let text = self as NSString let rect = text.boundingRect(with: size, options:.usesLineFragmentOrigin, attributes: attributes, context:nil) return rect.size.height } } |
用法:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | self.view.makeToast(message:"Simple Toast") self.view.makeToast(message:"Simple Toast", duration: 2.0, position:HRToastPositionTop) self.view.makeToast(message:"Simple Toast", duration: 2.0, position: HRToastPositionCenter, image: UIImage(named:"ic_120x120")!) self.view.makeToast(message:"It is just awesome", duration: 2.0, position: HRToastPositionDefault, title:"Simple Toast") self.view.makeToast(message:"It is just awesome", duration: 2.0, position: HRToastPositionCenter, title:"Simple Toast", image: UIImage(named:"ic_120x120")!) self.view.makeToastActivity() self.view.makeToastActivity(position: HRToastPositionCenter) self.view.makeToastActivity(position: HRToastPositionDefault, message:"Loading") self.view.makeToastActivityWithMessage(message:"Loading") // Hide Toast self.view.hideToast(toast: self.view) self.view.hideToast(toast: self.view, force: true) self.view.hideToastActivity() |
如果您想使用iOS风格,请从Github下载此框架
iOS Toast警报查看框架
导入框架后,此示例将在您的UIViewController上运行。
范例1:
1 2 3 4 5 6 | //Manual let tav = ToastAlertView() tav.message ="Hey!" tav.image = UIImage(named:"img1")! tav.show() //tav.dismiss() to Hide |
范例2:
1 2 3 4 5 6 | //Toast Alert View with Time Dissmis Only self.showToastAlert("5 Seconds", image: UIImage(named:"img1")!, hideWithTap: false, hideWithTime: true, hideTime: 5.0) |
最后:
对于使用Xamarin.IOS的用户,您可以这样做:
1 | new UIAlertView(null, message, null,"OK", null).Show(); |
使用UIKit;是必须的。
使用Alert的Android Toast的Swift实现,该警告会在3秒钟后消失。
1 2 3 4 5 6 7 8 9 10 11 12 13 | func showAlertView(title: String?, message: String?) { let alertController = UIAlertController(title: title, message: message, preferredStyle: .Alert) let okAction = UIAlertAction(title:"OK", style: .Cancel, handler: nil) alertController.addAction(okAction) self.presentViewController(alertController, animated: true, completion: nil) let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(3 * Double(NSEC_PER_SEC))) dispatch_after(delayTime, dispatch_get_main_queue()) { print("Bye. Lovvy") alertController.dismissViewControllerAnimated(true, completion: nil) } } |
简单地说:
1 | self.showAlertView("Message sent...", message: nil) |
Swift 4语法延迟3秒:
1 2 3 4 5 | present(alertController, animated: true, completion: nil) DispatchQueue.main.asyncAfter(deadline: .now() + 3) { self.dismiss(animated: true, completion: nil) } |
对我来说,这个解决方案很好:
https://github.com/cruffenach/CRToast
示例如何使用它:
1 2 3 4 5 6 7 8 9 10 11 12 13 | NSDictionary *options = @{ kCRToastTextKey : @"Hello World!", kCRToastTextAlignmentKey : @(NSTextAlignmentCenter), kCRToastBackgroundColorKey : [UIColor redColor], kCRToastAnimationInTypeKey : @(CRToastAnimationTypeGravity), kCRToastAnimationOutTypeKey : @(CRToastAnimationTypeGravity), kCRToastAnimationInDirectionKey : @(CRToastAnimationDirectionLeft), kCRToastAnimationOutDirectionKey : @(CRToastAnimationDirectionRight) }; [CRToastManager showNotificationWithOptions:options completionBlock:^{ NSLog(@"Completed"); }]; |
这是您的解决方案:
将下面的代码放入您的Xcode项目中并享受,
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | - (void)showMessage:(NSString*)message atPoint:(CGPoint)point { const CGFloat fontSize = 16; UILabel* label = [[UILabel alloc] initWithFrame:CGRectZero]; label.backgroundColor = [UIColor clearColor]; label.font = [UIFont fontWithName:@"Helvetica-Bold" size:fontSize]; label.text = message; label.textColor = UIColorFromRGB(0x07575B); [label sizeToFit]; label.center = point; [self.view addSubview:label]; [UIView animateWithDuration:0.3 delay:1 options:0 animations:^{ label.alpha = 0; } completion:^(BOOL finished) { label.hidden = YES; [label removeFromSuperview]; }]; } |
如何使用 ?
1 | [self showMessage:@"Toast in iOS" atPoint:CGPointMake(160, 695)]; |
同样,如果在Xamarin上使用IOS,则在组件存储中有一个名为BTProgressHUD的新组件
1)从此链接下载toast-notifications-ios
2)转到目标->构建阶段,并将-fno-objc-arc添加到相关文件的"编译器源"中
3)制作函数并
1 2 3 4 5 6 7 | -(void)showToast :(NSString *)strMessage { iToast * objiTost = [iToast makeText:strMessage]; [objiTost setFontSize:11]; [objiTost setDuration:iToastDurationNormal]; [objiTost setGravity:iToastGravityBottom]; [objiTost show]; } |
4)在需要显示吐司消息的地方打电话
1 | [self showToast:@"This is example text."]; |
我想了一个简单的方法做烤面包!使用不带按钮的UIAlertController!我们使用按钮文字作为我们的信息!得到它?
参见下面的代码:
1 2 3 4 5 6 7 8 9 10 11 12 13 | func alert(title: String?, message: String?, bdy:String) { let alertController = UIAlertController(title: title, message: message, preferredStyle: .Alert) let okAction = UIAlertAction(title: bdy, style: .Cancel, handler: nil) alertController.addAction(okAction) self.presentViewController(alertController, animated: true, completion: nil) let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(2 * Double(NSEC_PER_SEC))) dispatch_after(delayTime, dispatch_get_main_queue()) { //print("Bye. Lovvy") alertController.dismissViewControllerAnimated(true, completion: nil) } } |
像这样使用它:
1 2 | self.alert(nil,message:nil,bdy:"Simple Toast!") // toast self.alert(nil,message:nil,bdy:"Alert") // alert with"Alert" button |
这就是我在Swift 3.0中所做的事情。我创建了UIView扩展,并调用了self.view.showToast(message:" Message Here",持续时间:3.0)和self.view.hideToast()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | extension UIView{ var showToastTag :Int {return 999} //Generic Show toast func showToast(message : String, duration:TimeInterval) { let toastLabel = UILabel(frame: CGRect(x:0, y:0, width: (self.frame.size.width)-60, height:64)) toastLabel.backgroundColor = UIColor.gray toastLabel.textColor = UIColor.black toastLabel.numberOfLines = 0 toastLabel.layer.borderColor = UIColor.lightGray.cgColor toastLabel.layer.borderWidth = 1.0 toastLabel.textAlignment = .center; toastLabel.font = UIFont(name:"HelveticaNeue", size: 17.0) toastLabel.text = message toastLabel.center = self.center toastLabel.isEnabled = true toastLabel.alpha = 0.99 toastLabel.tag = showToastTag toastLabel.layer.cornerRadius = 10; toastLabel.clipsToBounds = true self.addSubview(toastLabel) UIView.animate(withDuration: duration, delay: 0.1, options: .curveEaseOut, animations: { toastLabel.alpha = 0.95 }, completion: {(isCompleted) in toastLabel.removeFromSuperview() }) } //Generic Hide toast func hideToast(){ if let view = self.viewWithTag(self.showToastTag){ view.removeFromSuperview() } } } |
如果您想要纯粹的快捷方式,我们发布了内部文件。很简单
https://github.com/gglresearchanddevelopment/ios-toast
对于Swift 2.0并考虑https://stackoverflow.com/a/5079536/6144027
1 2 3 4 5 6 7 | //TOAST let alertController = UIAlertController(title:"", message:"This is a Toast.LENGTH_SHORT", preferredStyle: .Alert) self!.presentViewController(alertController, animated: true, completion: nil) let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(2.0 * Double(NSEC_PER_SEC))) dispatch_after(delayTime, dispatch_get_main_queue()) { alertController.dismissViewControllerAnimated(true, completion: nil) } |