ios中xib文件的用法

ZQRView文件:

//
//  ZQRView.h
//
//
//  Created by zzqqrr on 17/8/20.
//
//

#import <UIKit/UIKit.h>
@class appModel;
@interface ZQRView : UIView
@property (nonatomic,assign) appModel *apps;
/** 通过模型数据创建一个view */
+ (instancetype)appViewWithApp:(appModel *)app;
+ (instancetype)appView;
@end

//
//  ZQRView.m
//
//
//  Created by zzqqrr on 17/8/20.
//
//

#import "ZQRView.h"
#import "appModel.h"

@interface ZQRView()
@property (weak, nonatomic) IBOutlet UIImageView *titleImage;
@property (weak, nonatomic) IBOutlet UILabel *title;
@property (weak, nonatomic) IBOutlet UILabel *nowTimes;

@end

@implementation ZQRView

- (void)setApps:(appModel *)apps
{
    _apps=apps;
    self.title.text=apps.title;
    self.titleImage.image=[UIImage imageNamed:apps.icon];
}
+ (instancetype)appViewWithApp:(appModel *)app
{
    NSBundle *bundle=[NSBundle mainBundle];
    NSArray *objs=[bundle loadNibNamed:@"appZqr" owner:nil options:nil];
    ZQRView *appView=[objs lastObject];
    appView.apps=app;
    return appView;
}
+ (instancetype)appView
{
    return [self appViewWithApp:nil];
}
@end

　　　　//没有封装
        NSBundle *bundle1=[NSBundle mainBundle];
        NSArray *obj=[bundle1 loadNibNamed:@"appZqr" owner:nil options:nil];
        ZQRView *MyView=[obj lastObject];//数据模型
        appModel *mymodel=self.apps[index];
        MyView.apps=mymodel;//把模型赋值给xib的view

        //内部封装的
        ZQRView *appView2=[ZQRView appViewWithApp:self.apps[index]];

        NSBundle *bundle=[NSBundle mainBundle];
        //读取xib文件(会去创建xib中的描述的所有对象，并且按顺序放到数组中返回)
        NSArray *objs=[bundle loadNibNamed:@"zqrappView" owner:nil options:nil];
        UIView *appView1=[objs lastObject];
        //获取xib空间方法一
        UIImageView *iconView=appView1.subviews[];
        iconView.image=nil;
        UILabel *nameLable=appView1.subviews[];
        nameLable.text=@"";
        //获取xib空间方法二
        UIImageView *iconView1=(UIImageView *)[appView1 viewWithTag:];
        UILabel *nameLabel1=(UILabel *)[appView1 viewWithTag:];