//

//  ViewController.m

//  03-通过xib自定义商品的View

#import "ViewController.h"

#import "XMGShopView.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // 加载xib

//    XMGShopView *shopView = [[[NSBundle mainBundle] loadNibNamed:@"XMGShopView" owner:nil options:nil] firstObject];

//    XMGShopView *shopView = [[XMGShopView alloc] initWithFrame: CGRectMake(100, 100, 80, 100)];

    XMGShopView *shopView = [XMGShopView shopView];

    shopView.frame = CGRectMake(, , , );

    // 给子控件设置属性

    /*

    UIImageView *imageView = [shopView viewWithTag:100];

    UILabel *titleLabel = [shopView viewWithTag:200];

    imageView.image = [UIImage imageNamed:@"danjianbao"];

    titleLabel.text = @"单肩包";

    */

    [shopView setName:@"单肩包"];

    [shopView setIcon:@"danjianbao"];

    [self.view addSubview:shopView];

}

@end

//

//  XMGShopView.h

#import <UIKit/UIKit.h>

@interface XMGShopView : UIView

// 提供set方法

- (void)setIcon: (NSString *)icon;

- (void)setName: (NSString *)name;

// 提供快速创建方法

+ (instancetype)shopView;

@end

//  XMGShopView.m

/**

   xib使用注意事项:

   1> 如果一个view从xib中加载,就不能用[xxx alloc] init] 和 [xxx alloc] initWithFrame:]创建

   2> 如果一个xib经常被使用,应该提供快速构造类方法

   3> 如果一个view从xib中加载:

      用代码添加一些子控件,得在 initWithCoder: 和 awakeFromNib 创建

   4> 如果一个view从xib中加载,会调用initWithCoder: 和 awakeFromNib,不会调用init和initWithFrame:方法

 */

#import "XMGShopView.h"

@interface XMGShopView ()

    @property (weak, nonatomic) IBOutlet UIImageView *iconView;

    @property (weak, nonatomic) IBOutlet UILabel *titleLabel;

    /** 测试label */

    @property (nonatomic, weak) UILabel *label;

    /** 毛玻璃 */

    @property (nonatomic, weak) UIToolbar *toolBar;

@end

@implementation XMGShopView

/**

 *  如果View从xib中加载,就不会调用init和initWithFrame:方法

 *

 */

/*

- (instancetype)init{

    if (self = [super init]) {

        NSLog(@"%s", __func__);

    }

    return self;

}

- (instancetype)initWithFrame:(CGRect)frame{

    if (self = [super initWithFrame:frame]) {

       NSLog(@"%s", __func__);

    }

    return self;

}

 */

/**

*  如果View从xib中加载,就会调用initWithCoder:方法

*  创建子控件,...

   注意: 如果子控件（UIImageView，UILabel）是从xib中创建,是处于未唤醒状态

*/

- (instancetype)initWithCoder:(NSCoder *)aDecoder{

    if (self = [super initWithCoder:aDecoder]) {

        /*

         UILabel *label = [[UILabel alloc] init];

         label.backgroundColor = [UIColor grayColor];

         label.text = @"哈哈哈哈哈哈";

         [self addSubview:label];

         self.label = label;

        */

        NSLog(@"");

    }

    return self;

}

#pragma mark - xib的加载原理

- (UIView *)loadFormNib{//加载应该返回View。

    XMGShopView *shopView = [[XMGShopView alloc] initWithCoder:nil];

    shopView.frame = CGRectMake(, , , );

    UIImageView *iconView = [[UIImageView alloc] initWithCoder:nil];

    iconView.backgroundColor = [UIColor greenColor];

    iconView.frame = CGRectMake(, , , );

    iconView.tag = ;

    [shopView addSubview:iconView];

    self.iconView = iconView;

    UILabel *label = [[UILabel alloc] initWithCoder:nil];

    label.backgroundColor = [UIColor orangeColor];

    label.tag = ;

    [shopView addSubview:label];

    self.titleLabel = label;

    return shopView;

}

/**

 *  从xib中唤醒

    添加 xib中创建的子控件 的子控件

 */

- (void)awakeFromNib{

    // 往imageView上加毛玻璃

    UIToolbar *toolBar = [[UIToolbar alloc] init];

    [self.iconView addSubview:toolBar];

    self.toolBar = toolBar;

    NSLog(@"");

}

#pragma mark - 快速构造方法

+ (instancetype)shopView{

    return [[[NSBundle mainBundle] loadNibNamed:@"XMGShopView" owner:nil options:nil] firstObject];

}

#pragma mark - 布局子控件

- (void)layoutSubviews{

    [super layoutSubviews];

    /*

    self.label.frame = self.bounds;

     */

    self.toolBar.frame = self.iconView.bounds;

}

#pragma mark - 设置数据

- (void)setIcon:(NSString *)icon{

    self.iconView.image = [UIImage imageNamed:icon];

}

- (void)setName:(NSString *)name{

    self.titleLabel.text = name;

}

@end