iOS 常见代码片段 二

// iOS 定时发本地push 实现

//取消之前所有的本地通知

    [[UIApplication sharedApplication] cancelAllLocalNotifications];

    

    //清空 icon数量

    [UIApplication sharedApplication].applicationIconBadgeNumber = 0;

    

    

    //启动本地通知

    UILocalNotification *notification=[[UILocalNotification alloc] init];

    if (notification!=nil)

    {

        //现在的时间

        NSDate *now=[NSDate date];

        

        

        //获得系统日期

        NSCalendar  * cal=[NSCalendar  currentCalendar];

        NSUInteger  unitFlags=NSDayCalendarUnit|NSMonthCalendarUnit|NSYearCalendarUnit;

        NSDateComponents * conponent= [cal components:unitFlags fromDate:now];

        NSInteger year=[conponent year];

        NSInteger month=[conponent month];

        NSInteger day=[conponent day];

        //NSString *  nsDateString= [NSString  stringWithFormat:@"%4d年%2d月%2d日",year,month,day];

        

 

        

        //获得当天的12:00  时间

        NSString  * nsStringDate12 =  [NSString  stringWithFormat:@"%d-%d-%d-%d-%d-%d",

                            year, month,day, 12, 0, 0  ];

        

        //根据时间字符串获得NSDate

        NSDateFormatter  *dateformatter=[[NSDateFormatter alloc] init];

        [dateformatter setDateFormat:@"YYYY-MM-dd-HH-mm-ss"];

        NSDate  * todayTwelve=[dateformatter dateFromString:nsStringDate12];

        

        //然后比较  now跟  todayTwelve那个大，如果已经过了12点，那就设置明天12点

        NSComparisonResult   dateResult =  [now  compare:todayTwelve ];

        if (dateResult ==  NSOrderedDescending  )

        {

            NSDate  *  tomorrowTwelve =  [todayTwelve  dateByAddingTimeInterval: 24 * 60 * 60];

            

            notification.fireDate =  tomorrowTwelve;

        }

        else

        {

            notification.fireDate= todayTwelve;

        }

        notification.repeatInterval = kCFCalendarUnitDay;

        notification.timeZone=[NSTimeZone defaultTimeZone];

        notification.applicationIconBadgeNumber = 1;

 

        notification.alertBody=@"今天还没上线，好多奖励没领呢";

 

        notification.alertAction = @"打开";

        [[UIApplication sharedApplication]   scheduleLocalNotification:notification];

        [notification release];

    }

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification

{

    NSLog(@"获得本地通知");

    

    

    //点击提示框的打开

    application.applicationIconBadgeNumber = 0;

    

    

}

#pragma mark  顶部当行条的创建

-(void)createHeadView

{

    UIView *navBar=[[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 44+[UIApplication sharedApplication].statusBarFrame.size.height)];

    navBar.backgroundColor=kheader;

    [self.view addSubview:navBar];

    

    

    UILabel *lab=[[UILabel alloc]initWithFrame:CGRectMake(0,[UIApplication sharedApplication].statusBarFrame.size.height, self.view.frame.size.width, 44)];

    lab.text=@"发布心情";

    lab.font=f20Font;

    lab.textColor = kWhite;

    lab.textAlignment=NSTextAlignmentCenter;

    [self.view addSubview:lab];

    

    UIButton *leftBtn = [UIButton buttonWithType:UIButtonTypeCustom];

    leftBtn.frame = CGRectMake(0, [UIApplication sharedApplication].statusBarFrame.size.height, 80, 40);

    [leftBtn setBackgroundImage:[UIImage imageNamed:@"返回键透明.png"] forState:UIControlStateNormal];

    [leftBtn setBackgroundImage:[UIImage imageNamed:@"返回键-按下.png"] forState:UIControlStateHighlighted];

    [leftBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];

    [leftBtn addTarget:self action:@selector(leftBtnClick) forControlEvents:UIControlEventTouchUpInside];

    [navBar addSubview:leftBtn];

    

    UIButton *rightBtn = [UIButton buttonWithType:UIButtonTypeCustom];

    rightBtn.frame = CGRectMake(self.view.frame.size.width-60-10, [UIApplication sharedApplication].statusBarFrame.size.height+10, 60, 24);

    [rightBtn setBackgroundImage:[UIImage imageNamed:@"发布.png"] forState:UIControlStateNormal];

    [rightBtn setBackgroundImage:[UIImage imageNamed:@"发布-选.png"] forState:UIControlStateHighlighted];

    [rightBtn addTarget:self action:@selector(rightBtnClick) forControlEvents:UIControlEventTouchUpInside];

    [navBar addSubview:rightBtn];

      self.view.backgroundColor = k21;

    

}

-(void)sendReqAsync:(int) currentPage

{

    

    loading = [[LoadingView alloc]initWithFrame:CGRectMake(100, 64, 100, 100)];

    [loading loadingWithTrips:@"发布中···"];

    [self.view addSubview:loading];

    NSString *urlStr=[NSString stringWithFormat:myDogMoodAddUrl ,[AppDelegate instance].memberID_USER,self.feeling.text];

    urlStr = [urlStr stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding];

    NSURL *url = [NSURL URLWithString:urlStr];

    __weak ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];

    //[request setDelegate:self];

    [request setRequestMethod:@"GET"];

    [request startAsynchronous];

    [request setCompletionBlock:^{

        NSData *responseData = [request responseData];

        NSMutableDictionary * mdic =[NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableContainers error:Nil];

        // NSMutableArray  *  marr=[mdic objectForKey:BODYREASON];

        if ([[mdic objectForKey:CODEREASON]isEqualToString:success100]||[[mdic objectForKey:CODEREASON]isEqualToString:maxLimit]) {

            [loading loadingSuccess];

            

            //     CircleOfFirends1ViewController * page=(CircleOfFirends1ViewController *) [self.navigationController.viewControllers objectAtIndex: ([self.navigationController.viewControllers count] -1)];

            

            

            // [self.navigationController popViewControllerAnimated:YES];

            [[NSNotificationCenter defaultCenter]postNotificationName:INTEGRAL_NUM_NOTIFY object:self];

            [[NSNotificationCenter defaultCenter]postNotificationName:BACK_HOME_PAGE_SUBVIEW1_NOTIFY object:self];//返回到主页中的子页面1

            //        [self.navigationController popToViewController: [self.navigationController.viewControllers objectAtIndex: ([self.navigationController.viewControllers count] -2)] animated:YES];

            //        [[NSNotificationCenter defaultCenter]postNotificationName:PHOTO_DIARY_FEELING_BACK_NOTIFY object:self];

            //  [self dismissViewControllerAnimated:YES completion:nil];

            [self.navigationController popViewControllerAnimated:YES];

            

        }

        

    }];

    

    [request setFailedBlock:^{

        NSError *error = [request error];

        NSLog(@"%s,%@",__FUNCTION__, error);

        [loading loadingFailed];

    }];

    

}

//消息提示

[SGInfoAlert showInfo:@"        \n最大字数不能超过150\n         "

         

                      bgColor: [UIColor orangeColor].CGColor

         

                       inView:self.view

         

                     vertical:0.3];

-(BOOL) isEmpty:(NSString *) str {

    

    if (!str) {

        return YES;

    } else {

        //A character set containing only the whitespace characters space (U+0020) and tab (U+0009) and the newline and nextline characters (U+000A–U+000D, U+0085).

        NSCharacterSet *set = [NSCharacterSet whitespaceAndNewlineCharacterSet];

        

        //Returns a new string made by removing from both ends of the receiver characters contained in a given character set.

        NSString *trimedString = [str stringByTrimmingCharactersInSet:set];

        

        if ([trimedString length] == 0) {

            return YES;

        } else {

            return NO;

        }

    }

}

-(BOOL) isEmpty:(NSString *) str {

    

    if (!str) {

        return YES;

    } else {

        //A character set containing only the whitespace characters space (U+0020) and tab (U+0009) and the newline and nextline characters (U+000A–U+000D, U+0085).

        NSCharacterSet *set = [NSCharacterSet whitespaceAndNewlineCharacterSet];

        

        //Returns a new string made by removing from both ends of the receiver characters contained in a given character set.

        NSString *trimedString = [str stringByTrimmingCharactersInSet:set];

        

        if ([trimedString length] == 0) {

            return YES;

        } else {

            return NO;

        }

    }

}