在iOS中显示与Android中Toast功能相同的消息

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，该消息在几秒钟后自动消失。这类似于Android环境中Toast类的功能。

您可以使用project

对于类似吐司的行为，使用HUD模式

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];

使用iOS 9或更高版本的UIAlertViewController

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];
});

Swift 3.2

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，a是一条短消息，短时间显示在屏幕上，然后自动消失，不会中断用户与应用程序的交互

因此，许多来自安卓系统背景的人都想知道Toast的iOS版本是什么。除了当前的问题，还可以找到其他类似的问题，以及。答案是，在iOS中没有完全等同于祝酒的东西。不过，已经介绍了各种变通方法，包括

• 使用

  UIView

  制作您自己的祝酒词（请参阅、和）
• 导入模仿Toast的第三方项目（请参见、和）
• 使用带计时器的无按钮警报（请参阅）

然而，我的建议是坚持使用iOS已经提供的标准UI选项。不要试图让你的应用程序的外观和行为与Android版本完全相同。考虑如何重新打包，使其看起来和感觉像iOS应用程序。有关一些选择，请参见以下链接

---

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，那么答案可能是an。

对于使用Xamarin.IOS的用户，您可以这样做：

new UIAlertView(null, message, null, "OK", null).Show();

self.alert(nil,message:nil,bdy:"Simple Toast!") // toast
self.alert(nil,message:nil,bdy:"Alert") // alert with "Alert" button

---

使用UIKit；是必需的。

同样，如果在Xamarin上使用IOS，则组件库中有一个名为BTProgressHUD的新组件

如果您想要一个具有IOS风格的组件，请从Github下载此框架

导入框架后，这些示例适用于UIViewController

例1：

//Manual 
let tav = ToastAlertView()
tav.message = "Hey!"
tav.image = UIImage(named: "img1")!
tav.show()
//tav.dismiss() to Hide

例2：

//Toast Alert View with Time Dissmis Only
self.showToastAlert("5 Seconds",
                image: UIImage(named: "img1")!,
                hideWithTap: false,
                hideWithTime: true,
                hideTime: 5.0)

最终：

Swift 4.0：

制作一个新的swift文件。（文件新文件空Swift文件）。将其命名为UIViewToast。添加以下代码

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
}
}

1） 从

2） 转到目标->构建阶段，并将-fno objc arc添加到相关文件的“编译器源代码”中

3） 制作一个函数并导入“iToast.h”

4） 在需要显示toast消息的位置呼叫

[self showToast:@"This is example text."];

---

使用警报快速实现Android Toast，警报在3秒后消失

    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：

self.showAlertView("Message sent...", message: nil)

---

对于Swift 2.0和

---

我想出了一个简单的祝酒方法！使用不带按钮的UIAlertController！我们使用按钮文本作为我们的信息！了解了？ 见以下代码：

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：

new UIAlertView(null, message, null, "OK", null).Show();

self.alert(nil,message:nil,bdy:"Simple Toast!") // toast
self.alert(nil,message:nil,bdy:"Alert") // alert with "Alert" button

以下是您的解决方案：
将下面的代码放入您的Xcode项目中并享受

- (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

[self showMessage:@"Toast in iOS" atPoint:CGPointMake(160, 695)];

---

对我来说，这个解决方案很好：

如何使用它的示例：

    NSDictionary *options = @{
                          kCRToastTextKey : @"Hello World!",
                          kCRToastTextAlignmentKey : @(NSTextAlignmentCenter),
                          kCRToastBackgroundColorKey : [UIColor redColor],
                          kCRToastAnimationInTypeKey : @(CRToastAnimationTypeGravity),
                          kCRToastAnimationOutTypeKey : @(CRToastAnimationTypeGravity),
                          kCRToastAnimationInDirectionKey : @(CRToastAnimationDirectionLeft),
                          kCRToastAnimationOutDirectionKey : @(CRToastAnimationDirectionRight)
                          };
[CRToastManager showNotificationWithOptions:options
                            completionBlock:^{
                                NSLog(@"Completed");
                            }];

---

3秒延迟的Swift 4语法：

present(alertController, animated: true, completion: nil)

DispatchQueue.main.asyncAfter(deadline: .now() + 3) {                 
    self.dismiss(animated: true, completion: nil)     
} 

---

对于Swift 3和4：

使用图书馆

对于Swift 2：

---

使用

这是我在Swift 3.0中所做的。我创建了UIView扩展并调用了self.view.showToast（消息：“message Here”，持续时间：3.0）和self.view.hideToast（）

---

如果你想要纯swift，我们发布了我们的内部文件。这很简单

---

Swift 4

这个小把戏怎么样

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)
    }
}

呼叫示例：

showToast(controller: self, message : "This is a test", seconds: 2.0)

输出：

showToast(controller: self, message : "This is a test", seconds: 2.0)

---

Swift 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=（查看下面的代码）

此解决方案的优点是：

类似Android的Toast消息

仍然是iOS的外观和感觉

---

你可能想检查这个链接，谢谢Emmanuel的链接。我正在尝试实现它。你可以检查这个家伙提供了一个很好的解决方案库：这与toast不完全相同-当对话框显示时，用户与其他视图的交互被禁用。也许有一种方法可以通过添加与屏幕上其他视图交互的功能（例如，在我的例子中，警报背后的按钮或绘画画布）来删除“灰显”背景？iAlertView在iOS9中已被弃用。是否有其他方法可以执行此操作？谢谢，但我是否可以使用UIAlertController来显示toast？此代码中的错误太多。。更改如下：中心到中心、白色到白色、动画宽度到动画持续时间（持续时间，错误太多..请修复..对于100%类似Android的行为，我建议设置

hud.isUserInteractionEnabled=false

，以便在消息显示时可以与应用程序的其余部分进行交互。@MattiaC.我无法设置

hud.isUserInteractionEnabled=false

的值，看起来只有getter提供了。它阻塞了用户界面。它的行为与Android的oneUse

hud.offset=CGPoint（x:0，y:MBProgressMaxOffset）不同

将HUD定位在底部边缘。看起来很棒。谢谢！嗨，萨扎德，问题很明显，它需要一个导航控制器。我只是想提出它。也许我的评论是错误的，过时了。很高兴听到你修复了很多非常精确的解决方案，特别是重新设计UI的想法。这是很困难的对于开发者或设计师来说，这并不是最简单的答案，但Toasts很容易成为另一个移动用户体验“垃圾抽屉”，经常被用作内容的垃圾场，1）聊天和分散注意力，2）是真正有用的信息，因此，最好在直接上下文中以徽章、图标或内联状态消息的形式显示应用程序的主要内容元素

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()
    }
  }
}

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)
    }
}

showToast(controller: self, message : "This is a test", seconds: 2.0)

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)
}