iOS程序-使用xib的owner

1.添加绿色的view，MJViewController对象作为owner

    NSArray *array = [[NSBundle mainBundle] loadNibNamed:@"MyView" owner:self options:nil];    

    UIView *greenView = array[0];

    [self.view addSubview:greenView];

2.添加蓝色的view，Dog对象作为owner

    UIView *blueView = [[NSBundle mainBundle] loadNibNamed:@"HisView" owner:_d2 options:nil][0];

    blueView.center = CGPointMake(160, 200);

    [self.view addSubview:blueView];

3.owner的机制为代理模式

方法/步骤

• • 1
    MJViewController.h
    
    
    #import <UIKit/UIKit.h>
    
    @interface MJViewController : UIViewController
    
    - (IBAction)leftClick;
    - (IBAction)rightClick;
    
    @end
    
  • 2
    MJViewController.m
    
    
    #import "MJViewController.h"
    #import "Dog.h"
    
    @interface MJViewController ()
    {
        Dog *_d1;
        Dog *_d2;
    }
    @end
    
    @implementation MJViewController
    
    - (void)viewDidLoad
    {
        [super viewDidLoad];
        
        // 1.加载xib文件
        NSArray *array = [[NSBundle mainBundle] loadNibNamed:@"MyView" owner:self options:nil];
        
        UIView *greenView = array[0];
        
        // 2.添加到控制器的view里面去
        [self.view addSubview:greenView];
        
        // 3.
    //    UIButton *left = (UIButton *)[greenView viewWithTag:10];
    //    [left addTarget:self action:@selector(leftClick) forControlEvents:UIControlEventTouchUpInside];
    //    
    //    UIButton *right = (UIButton *)[greenView viewWithTag:20];
    //    [right addTarget:self action:@selector(rightClick) forControlEvents:UIControlEventTouchUpInside];
        
        _d1 = [[Dog alloc] init];
        _d1.age = 10;
        
        _d2 = [[Dog alloc] init];
        _d2.age = 20;
        
        // 添加蓝色的view
        UIView *blueView = [[NSBundle mainBundle] loadNibNamed:@"HisView" owner:_d2 options:nil][0];
        blueView.center = CGPointMake(160, 200);
        [self.view addSubview:blueView];
    }
    
    - (void)leftClick
    {
        NSLog(@"left------");
    }
    
    - (void)rightClick
    {
        NSLog(@"right------");
    }
    @end
    
  • 3
    Dog.h
    
    
    #import <Foundation/Foundation.h>
    
    @interface Dog : NSObject
    
    @property (nonatomic, assign) int age;
    
    - (IBAction)btnClick;
    @end
    
  • 4
    Dog.m
    
    
    #import "Dog.h"
    
    @implementation Dog
    - (void)btnClick
    {
        NSLog(@"%d岁的狗在汪汪.....", _age);
    }
    
    /*
    - (NSArray *)loadNibNamed:(NSString *)name owner:(id)owner options:(NSDictionary *)options
    {
    
        // 解析HisView.xib文件 
    
        //   创建Objects下面的所有对象
        // 创建view
        UIView *blue = [[UIView alloc] init];
        blue.backgroundColor = [UIColor blueColor];
        //....设置其他属性
    
        // 创建按钮
        UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        [btn setTitle:@"我是按钮" forState:UIControlStateNormal];
        [btn addTarget:owner action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside];
    //    ....设置其他属性
        
        [blue addSubview:btn];
        
        // 创建文本输入框
        UITextField *field = [[UITextField alloc] init];
        // ... 设置其他属性
        
        return @[ blue, field];
    }
     
     */
    
    @end
    
  • 5
    MyView.xib
    
  • 6
    HisView.xib

转载于:https://www.cnblogs.com/ChouDanDan/p/5054960.html