新建object-c類，從UIView繼承，如新建FlagView

#import <UIKit/UIKit.h>

@class FlagBean;

@interface FlagView : UIView

@property(nonatomic,weak)FlagBean  *flag;

+(instancetype)flagView;

@end

#import "FlagView.h"
#import "FlagBean.h"

@interface FlagView ()
    @property (weak, nonatomic) IBOutlet UILabel *nameLabel;
    @property (weak, nonatomic) IBOutlet UIImageView *imageHead;
@end

@implementation FlagView

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/


+(instancetype)flagView{
    return [[[NSBundle mainBundle] loadNibNamed:@"FlagView"
                                          owner:nil options:nil]lastObject];
}


- (void)setFlag:(FlagBean *)flagbean{
    _flag = flagbean;
    self.nameLabel.text = flagbean.name;
    self.imageHead.image = [UIImage imageNamed:flagbean.icon];

}


@end
 

@interface FlagView ()
    @property (weak, nonatomic) IBOutlet UILabel *nameLabel;
    @property (weak, nonatomic) IBOutlet UIImageView *imageHead;
@end

新建一個同名xib檔案，修改File's Owner的Custom Class為新建的自定義view類名

將xib檔案中的view連結到自定義view中

在xib檔案裡可以加入其它系統控制元件，並連線到自定義view類中

注意：如要在xib檔案的右上角的屬性欄中指明class 是“FlagView”，

要不然只能寫如下程式碼：

- (void)awakeFromNib
{
    [[NSBundle mainBundle] loadNibNamed:@"FaceView" owner:self options:nil];
    [self addSubview:self.contentView];
}

在storyboard中加入一個通用view控制元件，並指定Custom Class為自定義view類，按control連線到viewcontroller類中

在外部引用的時候：

 FlagView *flagView = [FlagView flagView];
    flagView.bounds = CGRectMake(0, 0, 200, 80);