IOS-色彩转换 数组排序 事件转换

IOS--颜色转换 数组排序 事件转换
/**
 数组排序  array=要排序的数组   attribute=要排序的字段   asc=是否是升序
 排序完  传进来的引用array 就是排序后的结果
 */
void arraySort(NSMutableArray * array, NSString *attribute, BOOL asc){
    NSMutableArray *sortDescriptors = [NSMutableArray arrayWithObject:[NSSortDescriptor sortDescriptorWithKey:attribute ascending:asc]];
    [array sortUsingDescriptors:sortDescriptors ];
}


/**
 时间 转换  time  秒数
 */
NSString* formatTimeByInt(int time, NSString *format){
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    NSDate *date1 = [NSDate dateWithTimeIntervalSince1970:time];
    [dateFormatter setDateFormat:format];
    NSString *resultTime = [dateFormatter stringFromDate:date1];
    [dateFormatter release];
    return resultTime;
}

/**
 将16进制的颜色值变成UIColor   @"FFFF00"
 */
UIColor * colorFromHexRGB(NSString *inColorString){
    UIColor *result = nil;
    unsigned int colorCode = 0;
    unsigned char redByte, greenByte, blueByte;
    
    if (nil != inColorString)
    {
        NSScanner *scanner = [NSScanner scannerWithString:inColorString];
        (void) [scanner scanHexInt:&colorCode]; // ignore error
    }
    redByte = (unsigned char) (colorCode >> 16);
    greenByte = (unsigned char) (colorCode >> 8);
    blueByte = (unsigned char) (colorCode); // masks off high bits
    result = [UIColor
              colorWithRed: (float)redByte / 0xff
              green: (float)greenByte/ 0xff
              blue: (float)blueByte / 0xff
              alpha:1.0];
    return result;
}