通过UIWindow创建状态栏的通知

////  HQStatusBarHUD.m//  StatusBarHUD////  Created by hq on 16/5/3.//  Copyright © 2016年 hanqing. All rights reserved.//#import "HQStatusBarHUD.h"#define  HQScreenWidth [UIScreen mainScreen].bounds.size.width//提示框的高度#define HQTipsHeight 40//字体大小#define HQFontSize [UIFont systemFontOfSize:14]@interface HQStatusBarHUD()@end@implementation HQStatusBarHUDstatic UIWindow *window;static NSTimer *timer;+(void) setUpWindow{        window=[[UIWindow alloc] init];        window.windowLevel=UIWindowLevelStatusBar;        window.frame=CGRectMake(0, -HQTipsHeight, HQScreenWidth,HQTipsHeight);        window.hidden=NO;        [UIView animateWithDuration:0.5 animations:^{                window.frame=CGRectMake(0,0, HQScreenWidth,HQTipsHeight);            }];}+(void) showMessage:(NSString *) message image:(UIImage *) image messageBgColor:(UIColor *)bgColor {        [timer invalidate];        [self setUpWindow];        window.backgroundColor=bgColor;        UIButton *but=[[UIButton alloc]initWithFrame:window.bounds];        but.titleEdgeInsets=UIEdgeInsetsMake(0, 10, 0, 0);        [but setTitle:message forState:UIControlStateNormal];        [but setImage:image forState:UIControlStateNormal];        but.titleLabel.textColor=[UIColor whiteColor];        but.titleLabel.font=HQFontSize;        [window addSubview:but];        //添加自动消失动画    timer=[NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(hide) userInfo:nil repeats:NO];}//显示成功信息+(void) showSuccessWithString:(NSString *) message{    [self showMessage:message image:[UIImage imageNamed:@"StatusBarHUD.bundle/success_ico"] messageBgColor:[UIColor colorWithRed:0.600 green:0.800 blue:0.400 alpha:1.000]];}+(void) showErrorWithString:(NSString *) message{        [self showMessage:message image:[UIImage imageNamed:@"StatusBarHUD.bundle/error_icon"] messageBgColor:[UIColor colorWithRed:1.000 green:0.216 blue:0.246 alpha:1.000]];}+(void) showMessageWithString:(NSString *) message{        [self showMessage:message image:[UIImage imageNamed:@"StatusBarHUD.bundle/info_icon"] messageBgColor:[UIColor colorWithRed:1.000 green:0.600 blue:0.000 alpha:1.000]];}+(void)showLoading:(NSString *)message messageBgColor:(UIColor *)bgColor{        [self setUpWindow];        window.backgroundColor=bgColor;        UIActivityIndicatorView *indicator=[[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];        indicator.frame=CGRectMake(0, (HQTipsHeight-indicator.bounds.size.height)*0.5, indicator.bounds.size.width, indicator.bounds.size.height);        [indicator startAnimating];        CGFloat labW=[message sizeWithAttributes:@{NSFontAttributeName:HQFontSize}].width;        UILabel *lab=[[UILabel alloc]init];        lab.frame=CGRectMake(indicator.bounds.size.width, 0, labW, HQTipsHeight);        lab.text=message;        lab.textAlignment=NSTextAlignmentCenter;        lab.textColor=[UIColor whiteColor];        lab.font=HQFontSize;        UIView *view=[[UIView alloc] init];        view.bounds=CGRectMake(0, 0, indicator.bounds.size.width+labW, HQTipsHeight);        view.center=window.center;            [view addSubview:indicator];        [view addSubview:lab];        [window addSubview:view];}+(void) showLoadingWithString:(NSString *) message{        [self showLoading:message messageBgColor:[UIColor colorWithRed:1.000 green:0.600 blue:0.000 alpha:1.000]];}+(void) hide{        [UIView animateWithDuration:0.5 delay:0.5 options:UIViewAnimationOptionCurveLinear animations:^{        window.frame=CGRectMake(0,-HQTipsHeight, HQScreenWidth,HQTipsHeight);    } completion:^(BOOL finished) {        window=nil;    }];}@end