Objectice C common function which used in daily programming.

Utility.m

//Get UIColor from Hex color code
+(UIColor *)colorFromHexString:(NSString *)hexString {
    unsigned rgbValue = 0;
    NSScanner *scanner = [NSScanner scannerWithString:hexString];
    [scanner setScanLocation:1]; // bypass '#' character
    [scanner scanHexInt:&rgbValue];
    return [UIColor colorWithRed:((rgbValue & 0xFF0000) >> 16)/255.0 green:((rgbValue & 0xFF00) >> 8)/255.0 blue:(rgbValue & 0xFF)/255.0 alpha:1.0];
}

//Set Bottom Border to UITextField
+(void)TextFieldBottomBorder_Action:(BOOL)status TextField:(UITextField*)textField{
    CALayer *border = [CALayer layer];
    CGFloat borderWidth = 1;
    if(status){
        border.borderColor = [UIColor redColor].CGColor;
    }else{
        border.borderColor = [UIColor grayColor].CGColor;
    }
    border.frame = CGRectMake(0, textField.frame.size.height - borderWidth, textField.frame.size.width, textField.frame.size.height);
    border.borderWidth = borderWidth;
    [textField.layer addSublayer:border];
    textField.layer.masksToBounds = YES;
}

//Show Alert Message
+(void)showAlertTitle:(NSString *)title Message:(NSString *)msg{
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:title
                                                        message:msg
                                                       delegate:self
                                              cancelButtonTitle:@"Ok"
                                              otherButtonTitles:nil, nil];
    [alertView show];
}


//Show Confirm Alert Message and handel its button click event
+(void)ShowAlertDialogWithDeleteMessage{
     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil
                                                    message:@"Are you sure you want to delete this photo?"
                                                   delegate:self cancelButtonTitle:@"NO"
                                          otherButtonTitles:@"YES",nil];
    [alert show];
}

//Handel Alert View delegets
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
    //Button Index 0 is for cancel button
    if (buttonIndex == 0)
    {
        [alertView dismissWithClickedButtonIndex:1 animated:TRUE];
    }
    //button index 1 is for YES button
    if (buttonIndex == 1)
    {
        //Perform your code on Yes button click
        //Here i am deleting user photo
        [self deleteUserPhoto];
    }
}