IOS一些小方法

//强制横屏
AppDelegate *appdelegate=(AppDelegate *)[UIApplication sharedApplication].delegate;
appdelegate.allowRotation=YES;

//2.修改textfield的placeholder字体大小
    if (IS_IPHONE_5) {
        NSString *holderText = @"请输入验证码(必填)";
        NSMutableAttributedString *placeholder = [[NSMutableAttributedString alloc]initWithString:holderText];
        [placeholder addAttribute:NSForegroundColorAttributeName
                           value:[UIColor redColor]
                           range:NSMakeRange(0, holderText.length)];
        [placeholder addAttribute:NSFontAttributeName
                           value:[UIFont systemFontOfSize:12]
                           range:NSMakeRange(0, holderText.length)];
        self.authCodeField.attributedPlaceholder = placeholder;
    }
//3，label显示两种颜色，格式
NSString *title = [NSString stringWithFormat:@"您邀请的号码(%@)已成功注册。",model.custCode];
    titleLabel.frame = CGRectMake(15, 5, KWidth-30,30);
    titleLabel.font = [UIFont systemFontOfSize:15];
    NSMutableAttributedString *hintString=[[NSMutableAttributedString alloc]initWithString:title];
    //获取要调整颜色的文字位置,调整颜色,range表示从第七位开始后面11位的范围
    [hintString addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(7, 11)];
    titleLabel.attributedText = hintString;
//4,IOS10之后真机测试打印（打包的时候要注释掉，否则无法打包）
#ifdef DEBUG
#define YQLString [NSString stringWithFormat:@"%s", __FILE__].lastPathComponent
#define YQLLog(...) printf(" %s\n\n", [[NSString stringWithFormat:__VA_ARGS__] UTF8String]);

#else
#define LRLog(...)
#endif
//获取日期时间
-(void)setTimeLabelText{
    NSDate* now = [NSDate date];
    NSCalendar *cal = [NSCalendar currentCalendar];
    
    unsigned int unitFlags = NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute |NSCalendarUnitSecond | NSCalendarUnitWeekday;
    NSDateComponents *dd = [cal components:unitFlags fromDate:now];
    NSInteger year = [dd year];
    NSInteger mon = [dd month];
    NSInteger day = [dd day];
    
    NSInteger hour = [dd hour];
    NSInteger min = [dd minute];
    NSArray *weekdays = [NSArray arrayWithObjects: [NSNull null], @"日", @"一", @"二", @"三", @"四", @"五", @"六", nil];
    NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
    NSTimeZone *timeZone = [[NSTimeZone alloc] initWithName:@"Asia/Shanghai"];
    [calendar setTimeZone: timeZone];
    NSCalendarUnit calendarUnit = NSCalendarUnitWeekday;
    NSDateComponents *theComponents = [calendar components:calendarUnit fromDate:now];
    NSString *week = [weekdays objectAtIndex:theComponents.weekday];
    _timeLabel.text =[NSString stringWithFormat:@"%.2ld:%.2ld",hour,min];
    _dateLabel.text = [NSString stringWithFormat:@"%.2ld/%.2ld/%.2ld 星期%@",year,mon,day,week];

}
//坐标从navigationbar开始算0
   if (IS_IOS_(7)) {
        if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
        {
            self.edgesForExtendedLayout = UIRectEdgeBottom;
        }
    }
//点击事件穿透
- (UIView*)hitTest:(CGPoint)point withEvent:(UIEvent *)event{
    UIView *hitView = [super hitTest:point withEvent:event];
//穿透哪个就设置哪个，下面这个是穿过本身view和view里面的一个子view
    if(hitView == self || hitView == _clearView){
        return nil;
    }
    return hitView;
}
//遍历NSString
 NSString *number = _recordArray[indexPath.row];
        [number enumerateSubstringsInRange:NSMakeRange(0, number.length) options:NSStringEnumerationByComposedCharacterSequences usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
            NSString *order = [NSString stringWithFormat:@"button %@",substring];
            NSLog(@"=======%@",order);
//            kTCSendControlBoxCmd(order);
        }];
//代码退出App
UIWindow *window = self.window;
            [UIView animateWithDuration:.5f animations:^{
                window.alpha = 0;
                window.frame = CGRectMake(0, -SCREENWIDTH, SCREENWIDTH, 0);
            } completion:^(BOOL finished) {
                exit(0);
            }];