这里使用的是OC的代码封装的
.h里面声明好接口
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#define TOAST_LONG 2000
#define TOAST_SHORT 1000
#define kCBToastPadding 20
#define kCBToastMaxWidth 220
#define kCBToastCornerRadius 5.0
#define kCBToastFadeDuration 0.5
#define kCBToastTextColor [UIColor whiteColor]
#define kCBToastBottomPadding 30
@interface ToastView : NSObject
+ (void)showToast:(NSString *)message withDuration:(NSUInteger)duration;
/**
* 含有图片的信息提示
*®
* 1：表示ok
* 0：表示warn
*/
+ (void)showToast:(NSString *)message imgType:(NSInteger)type withDuration:(NSUInteger)duration;
+ (void)dismissToast;
@end
.m里面实现方法
#import "ToastView.h"
#define FLT_APP_WINDOW [[UIApplication sharedApplication] keyWindow]
@implementation ToastView
+ (void)showToast:(NSString *)message withDuration:(NSUInteger)duration {
[ToastView dismissToast];
dispatch_async(dispatch_get_main_queue(), ^{
// build the toast label
UILabel *toast = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 0, 0)];
toast.text = message;
toast.backgroundColor = [UIColor colorWithWhite:0.0f alpha:0.6f];
toast.textColor = kCBToastTextColor;
toast.numberOfLines = 1000;
toast.tag = 1024;
toast.textAlignment = NSTextAlignmentCenter;
toast.lineBreakMode = NSLineBreakByWordWrapping;
toast.font = [UIFont systemFontOfSize:14.0f];
toast.layer.cornerRadius = kCBToastCornerRadius;
toast.layer.masksToBounds = YES;
// resize based on message
CGSize maximumLabelSize = CGSizeMake(kCBToastMaxWidth, 9999);
CGSize expectedLabelSize = [toast.text boundingRectWithSize:maximumLabelSize
options:NSStringDrawingUsesLineFragmentOrigin
attributes:@{NSFontAttributeName:toast.font}
context:nil].size;
//adjust the label to the new height
CGRect newFrame = toast.frame;
newFrame.size = CGSizeMake(expectedLabelSize.width + kCBToastPadding,
expectedLabelSize.height + kCBToastPadding);
toast.frame = newFrame;
// add the toast to the root window (so it overlays everything)
if ([toast.text length] > 0) {
[FLT_APP_WINDOW addSubview:toast];
// get the window frame to determine placement
CGRect windowFrame = FLT_APP_WINDOW.frame;
// align the toast properly
toast.center = CGPointMake(windowFrame.size.width / 2, windowFrame.size.height / 2);
// round the x/y coords so they aren't 'split' between values (would appear blurry)
toast.frame = CGRectMake(round(toast.frame.origin.x),
round(toast.frame.origin.y),
toast.frame.size.width,
toast.frame.size.height);
// set up the fade-in
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:kCBToastFadeDuration];
// values being aninmated
toast.alpha = 1.0f;
// perform the animation
[UIView commitAnimations];
// calculate the delay based on fade-in time + display duration
NSTimeInterval delay = duration;
// set up the fade out (to be performed at a later time)
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDelay:delay];
[UIView setAnimationDuration:kCBToastFadeDuration];
[UIView setAnimationDelegate:toast];
[UIView setAnimationDidStopSelector:@selector(removeFromSuperview)];
// values being animated
toast.alpha = 0.0f;
// commit the animation for being performed when the timer fires
[UIView commitAnimations];
}
});
}
+ (void)showToast:(NSString *)message imgType:(NSInteger)type withDuration:(NSUInteger)duration {
[ToastView dismissToast];// 加上这句话避免重复点击时出现叠加
dispatch_async(dispatch_get_main_queue(), ^{
// build the toast label
UIView *toastView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 40,40)];
toastView.backgroundColor = [UIColor colorWithWhite:0.0f alpha:0.6f];;
toastView.layer.cornerRadius = kCBToastCornerRadius;
toastView.layer.masksToBounds = YES;
toastView.tag = 1024;
// 图片添加
UIImageView *imageview = [[UIImageView alloc] initWithFrame:CGRectMake(kCBToastPadding/2, kCBToastPadding/2, 15, 15)];
if (type == 0) {
imageview.image = [UIImage imageNamed:@"alert_warn"];
} else {
imageview.image = [UIImage imageNamed:@"alert_ok"];
}
[toastView addSubview:imageview];
// label添加
UILabel *toast = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 0, 0)];
toast.backgroundColor = [UIColor clearColor];
toast.text = message;
toast.textColor = kCBToastTextColor;
toast.numberOfLines = 1000;
toast.textAlignment = NSTextAlignmentCenter;
toast.lineBreakMode = NSLineBreakByWordWrapping;
toast.font = [UIFont systemFontOfSize:14.0f];
// resize based on message
CGSize maximumLabelSize = CGSizeMake(kCBToastMaxWidth, 9999);
CGSize expectedLabelSize = [toast.text boundingRectWithSize:maximumLabelSize
options:NSStringDrawingUsesLineFragmentOrigin
attributes:@{NSFontAttributeName:toast.font}
context:nil].size;
// //adjust the label to the new height
toast.frame = CGRectMake(kCBToastPadding+15, kCBToastPadding/2 - 1.5, expectedLabelSize.width, expectedLabelSize.height);
toastView.frame = CGRectMake(0, 0, expectedLabelSize.width+kCBToastPadding*1.5+15, expectedLabelSize.height+kCBToastPadding);
[toastView addSubview:toast];
// add the toast to the root window (so it overlays everything)
if ([message length] > 0) {
[FLT_APP_WINDOW addSubview:toastView];
// get the window frame to determine placement
CGRect windowFrame = FLT_APP_WINDOW.frame;
// align the toast properly
toastView.center = CGPointMake(windowFrame.size.width / 2, windowFrame.size.height / 2);
// round the x/y coords so they aren't 'split' between values (would appear blurry)
toastView.frame = CGRectMake(round(toastView.frame.origin.x),
round(toastView.frame.origin.y),
toastView.frame.size.width,
toastView.frame.size.height);
// set up the fade-in
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:kCBToastFadeDuration];
// values being aninmated
toastView.alpha = 1.0f;
// perform the animation
[UIView commitAnimations];
// calculate the delay based on fade-in time + display duration
NSTimeInterval delay = duration;
// set up the fade out (to be performed at a later time)
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDelay:delay];
[UIView setAnimationDuration:kCBToastFadeDuration];
[UIView setAnimationDelegate:toastView];
[UIView setAnimationDidStopSelector:@selector(removeFromSuperview)];
// values being animated
toastView.alpha = 0.0f;
// commit the animation for being performed when the timer fires
[UIView commitAnimations];
}
});
}
+ (void)dismissToast {
UIView *toast = (UIView *)FLT_APP_WINDOW.subviews.lastObject;
if (toast.tag == 1024) {
[toast removeFromSuperview];
}
}
@end
调用处代码
- (IBAction)normal:(id)sender {
[ToastView showToast:@"很普通的toastView" withDuration:10.0];
}
- (IBAction)ok:(id)sender {
[ToastView showToast:@"提示图片带有OK" imgType:0 withDuration:10.0];
}
- (IBAction)warn:(id)sender {
[ToastView showToast:@"提示图片带有警告" imgType:1 withDuration:10.0];
}
