ios20--xib2

標籤：nslog   return   com   Owner   tool   uicolor   for   first   資料   

故事板控制器：

////  ViewController.m//  03-通過xib自訂商品的View#import "ViewController.h"#import "XMGShopView.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];        // 載入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(100, 100, 80, 100);        // 給子控制項設定屬性    /*    UIImageView *imageView = [shopView viewWithTag:100];    UILabel *titleLabel = [shopView viewWithTag:200];        imageView.image = [UIImage imageNamed:@"danjianbao"];    titleLabel.text = @"單肩包";    */    [shopView setName:@"單肩包"];    [shopView setIcon:@"danjianbao"];        [self.view addSubview:shopView];}@end

xib對應的類：

////  XMGShopView.h#import <UIKit/UIKit.h>@interface XMGShopView : UIView// 提供set方法- (void)setIcon: (NSString *)icon;- (void)setName: (NSString *)name;// 提供快速建立方法+ (instancetype)shopView;@end

//  XMGShopView.m/**   xib使用注意事項:   1> 如果一個view從xib中載入,就不能用[xxx alloc] init] 和 [xxx alloc] initWithFrame:]建立   2> 如果一個xib經常被使用,應該提供快速構造類方法   3> 如果一個view從xib中載入:      用代碼添加一些子控制項,得在 initWithCoder: 和 awakeFromNib 建立   4> 如果一個view從xib中載入,會調用initWithCoder: 和 awakeFromNib,不會調用init和initWithFrame:方法 */#import "XMGShopView.h"@interface XMGShopView ()    @property (weak, nonatomic) IBOutlet UIImageView *iconView;    @property (weak, nonatomic) IBOutlet UILabel *titleLabel;    /** 測試label */    @property (nonatomic, weak) UILabel *label;    /** 毛玻璃 */    @property (nonatomic, weak) UIToolbar *toolBar;@end@implementation XMGShopView/** *  如果View從xib中載入,就不會調用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從xib中載入,就會調用initWithCoder:方法*  建立子控制項,...   注意: 如果子控制項（UIImageView，UILabel）是從xib中建立,是處於未喚醒狀態*/- (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(@"1");            }    return self;}#pragma mark - xib的載入原理- (UIView *)loadFormNib{//載入應該返回View。    XMGShopView *shopView = [[XMGShopView alloc] initWithCoder:nil];    shopView.frame = CGRectMake(0, 0, 80, 100);        UIImageView *iconView = [[UIImageView alloc] initWithCoder:nil];    iconView.backgroundColor = [UIColor greenColor];    iconView.frame = CGRectMake(0, 0, 80, 80);    iconView.tag = 100;    [shopView addSubview:iconView];    self.iconView = iconView;        UILabel *label = [[UILabel alloc] initWithCoder:nil];    label.backgroundColor = [UIColor orangeColor];    label.tag = 200;    [shopView addSubview:label];    self.titleLabel = label;        return shopView;}/** *  從xib中喚醒    添加 xib中建立的子控制項 的子控制項 */- (void)awakeFromNib{    // 往imageView上加毛玻璃    UIToolbar *toolBar = [[UIToolbar alloc] init];    [self.iconView addSubview:toolBar];    self.toolBar = toolBar;    NSLog(@"2");}#pragma mark - 快速構造方法+ (instancetype)shopView{    return [[[NSBundle mainBundle] loadNibNamed:@"XMGShopView" owner:nil options:nil] firstObject];}#pragma mark - 布局子控制項- (void)layoutSubviews{    [super layoutSubviews];    /*    self.label.frame = self.bounds;     */    self.toolBar.frame = self.iconView.bounds;}#pragma mark - 設定資料- (void)setIcon:(NSString *)icon{    self.iconView.image = [UIImage imageNamed:icon];}- (void)setName:(NSString *)name{    self.titleLabel.text = name;}@end

 

ios20--xib2