zhangwc

@implementation UIView (Badge)
- (void)addBadgeValue:(NSString *)badgeValue {
    [self removeBadgeValue];
    
    UITabBar *tabBar = [[UITabBar alloc] initWithFrame:CGRectMake(0, 0, 320, 50)];
    UITabBarItem *item = [[UITabBarItem alloc] initWithTitle:@"" image:nil tag:0];
    item.badgeValue = badgeValue;
    NSArray *array = [[NSArray alloc] initWithObjects:item, nil];
    tabBar.items = array;
    [item release];

zhangwc

//判断当前网络类型
//Reachability.m 中 networkStatusForFlags 方法重构
- (NetworkStatus) networkStatusForFlags: (SCNetworkReachabilityFlags) flags
{
    if ((flags & kSCNetworkReachabilityFlagsReachable) == 0)
    {
        return NotReachable;
    }
     
    BOOL retVal = NotReachable;

zhangwc

//把view截图为UIImage
- (UIImage *)renderInImage:(UIView *)view
{
    UIGraphicsBeginImageContext(view.bounds.size);
    [view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
     
    return (img);
}

zhangwc

#import <UIKit/UIKit.h>

@interface UIColor(ColorComponents)
- (CGColorSpaceModel) colorSpaceModel;
- (CGFloat) red;
- (CGFloat) green;
- (CGFloat) blue;
- (CGFloat) alpha;
@end

zhangwc

    //数字加千位分隔符
    NSNumber *testNumber = [NSNumber numberWithFloat:0.01f];
    NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
    [numberFormatter setPositiveFormat:@"###,##0.00;"];
    NSString *formattedNumberString = [numberFormatter stringFromNumber:testNumber];
    NSLog(@"formattedNumberString:%@", formattedNumberString);
    //formattedNumberString log为1,234,567.89

zhangwc

@interface NSDate(Conversion)
+ (NSDate *)dateFromString:(NSString *)dateString dateFormat:(NSString *)format;
+ (NSString *)stringFromDate:(NSDate *)date dateFormat:(NSString *)format;
+ (NSInteger)timeBetweenFrom:(NSDate*)fromDateTime
                          to:(NSDate*)toDateTime
                    withUnit:(NSCalendarUnit)unit;
@end

@implementation NSDate(Conversion)

zhangwc

//函数描述: string 字数限制
//输入参数:string：要判断的string ；minSize：最小字数限制；maxSize：最大字数限制
//返回值: BOOL:是否超出限制
//备注:一个汉字占两个字符，其他字母占一个字符
+ (BOOL)checkStringSize:(NSString*)string minSize:(int)minSize maxSize:(int)maxSize
{
    NSString *regex = @"^[\u4e00-\u9fa5]";
    int length=[string length];
    int currentStringSize=0;
    for (int i=0;i<length;i++) {//逐步判断string中的每个字符是否为汉字，是，占两个字符，不是，占一个字符

zhangwc

   G: 公元时代，例如AD公元
    yy: 年的后2位
    yyyy: 完整年
    MM: 月，显示为1-12
    MMM: 月，显示为英文月份简写,如 Jan
    MMMM: 月，显示为英文月份全称，如 Janualy
    dd: 日，2位数表示，如02
    d: 日，1-2位显示，如 2
    EEE: 简写星期几，如Sun
    EEEE: 全写星期几，如Sunday

zhangwc

- (void)savePicturefromurl:(NSString *)url path:(NSString *)path imgName:(NSString *)imgName
{
    UIImage *img=[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:url]]];
     if(path==nil)
    {
        path = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:imgName];
    }
    [UIImagePNGRepresentation(image) writeToFile:path atomically:YES];
}

zhangwc

NSMutableArray *someObject = [NSMutableArray array];
NSLog(@"%s:%d someObject=%@", __func__, __LINE__, someObject);
[someObject addObject:@"foo"];
NSLog(@"%s:%d someObject=%@", __func__, __LINE__, someObject);