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    [MagicalRecord saveWithBlock:^(NSManagedObjectContext * localContext) {
        NSArray * array = [CoopBoxStorage findAllWithPredicate:predicate inContext:localContext];
        
        [array enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL * stop) {
            CoopBoxStorage * coopBoxStorage = obj;
            [coopBoxStorage MR_deleteEntityInContext:localContext];
        }];
    } completion:^(BOOL success, NSError * error) {
        if (success) {
            DDLogInfo(@"CoopBoxStorage stored on database without errors");

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- (UIImage *) imageWithUIView:(UIView *)view {
    UIGraphicsBeginImageContextWithOptions(view.bounds.size, NO, [UIScreen mainScreen].scale);
    [view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage * image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}

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UIDatePicker *datePicker = [[UIDatePicker alloc] init];
datePicker.datePickerMode = UIDatePickerModeDateAndTime;
datePicker.minimumDate = [NSDate date];
datePicker.maximumDate = [NSDate dateWithTimeInterval:(24*60*60*2) sinceDate:datePicker.minimumDate];
datePicker.minuteInterval = 10;
datePicker.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];//设置为中文显示

UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"\n\n\n\n\n\n\n\n\n\n\n" message:nil 　　preferredStyle:UIAlertControllerStyleActionSheet];
[alert.view addSubview:datePicker];

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- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([segue.identifier isEqualToString:@"0"]) {
        UINavigationController * nav = segue.destinationViewController;
        LaunchTongChengTableViewController * vc = (LaunchTongChengTableViewController *)nav.topViewController;
        if ([vc respondsToSelector:@selector(setScenarioType:)]) {
            vc.scenarioType = 0;
        }
    }
}

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- (BOOL)isModal {
    return self.presentingViewController.presentedViewController == self
    || self.navigationController.presentingViewController.presentedViewController == self.navigationController
    || [self.tabBarController.presentingViewController isKindOfClass:[UITabBarController class]];
}

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- (UIStoryboard *)mainStoryboard 
{
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main"
                                                         bundle:[NSBundle mainBundle]];
    return storyboard;
}

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- (void)addTaskButtonClicked:(id)sender
{
    UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"NewTaskTitle", @"")
                                                        message:@""
                                                       delegate:self
                                              cancelButtonTitle:NSLocalizedString(@"NewTaskCancel", @"")
                                              otherButtonTitles:NSLocalizedString(@"NewTaskConfirm", @""), nil];
    alertView.delegate = self;
    alertView.tag = 0;
    alertView.alertViewStyle = UIAlertViewStylePlainTextInput;

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//计算NSString中英文字符串的字符长度。ios 中一个汉字算2字符数
- (int)charNumber:(NSString*)strtemp
{
    int strlength = 0;
    char* p = (char*)[strtemp cStringUsingEncoding:NSUnicodeStringEncoding];
    for (int i = 0; i < [strtemp lengthOfBytesUsingEncoding:NSUnicodeStringEncoding]; i++) {
        if (*p) {
            p++;
            strlength++;
        } else {

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+ (NSDate*)_getDateBySecondFormat:(NSDate*)date
{
    return [self _getDateByFormat:date
                           Format:@"yyyy/MM/dd HH:mm"];
}

+ (NSDate*)_getDateByFormat:(NSDate*)date Format:(NSString*)format
{
    NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:format];