UI基础第八弹:xib的简单使用

一、简单介绍

xib和storyboard的比较，一个轻量级一个重量级。

共同点：

都用来描述软件界面

都用Interface Builder工具来编辑

不同点:

Xib是轻量级的，用来描述局部的UI界面

Storyboard是重量级的，用来描述整个软件的多个界面，并且能展示多个界面之间的跳转关系

二、xib的简单使用

1.建立xib文件

建立的xib文件命名为appxib.xib

2.对xib进行设置

　　根据程序的需要，这里把view调整为自由布局

建立view模型（设置长宽等参数）

调整布局和内部的控件

 

完成后的单个view

3.使用xib文件的代码示例

YYViewController.m文件代码如下：

 1 // 2 //  YYViewController.m 3 //  10-xib文件的使用 4 // 5 //  Created by apple on 14-5-24. 6 //  Copyright (c) 2014年 itcase. All rights reserved. 7 // 8  9 #import "YYViewController.h"10 #import "YYapp.h"11 12 @interface YYViewController ()13 @property(nonatomic,strong)NSArray *app;14 @end15 16 @implementation YYViewController17 18 //1.加载数据信息19 -(NSArray *)app20 {21     if (!_app) {22         NSString *path=[[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];23         NSArray *temparray=[NSArray arrayWithContentsOfFile:path];24         25         //字典转模型26         NSMutableArray *arrayM=[NSMutableArray array ];27         for (NSDictionary *dict in temparray) {28             [arrayM addObject:[YYapp appWithDict:dict]];29         }30         _app=arrayM;31     }32     return _app;33 }34 35 //创建界面原型36 - (void)viewDidLoad37 {38     [super viewDidLoad];39     NSLog(@"%d",self.app.count);40     41     //九宫格布局42     int totalloc=3;43     CGFloat appviewW=80;44     CGFloat appviewH=90;45     CGFloat margin=(self.view.frame.size.width-totalloc*appviewW)/(totalloc+1);46     47     int count=self.app.count;48     for (int i=0; i<count; i++) {49         50         int row=i/totalloc;51         int loc=i%totalloc;52         CGFloat appviewX=margin + (margin +appviewW)*loc;53         CGFloat appviewY=margin + (margin +appviewH)*row;54         YYapp *app=self.app[i];55         56         //拿出xib视图57        NSArray  *apparray= [[NSBundle mainBundle]loadNibNamed:@"appxib" owner:nil options:nil];58         UIView *appview=[apparray firstObject];59         //加载视图60         appview.frame=CGRectMake(appviewX, appviewY, appviewW, appviewH);61         62         UIImageView *appviewImg=(UIImageView *)[appview viewWithTag:1];63         appviewImg.image=app.image;64         65         UILabel *appviewlab=(UILabel *)[appview viewWithTag:2];66         appviewlab.text=app.name;67         68         UIButton *appviewbtn=(UIButton *)[appview viewWithTag:3];69         [appviewbtn addTarget:self action:@selector(appviewbtnClick:) forControlEvents:UIControlEventTouchUpInside];70         appviewbtn.tag=i;71         72         [self.view addSubview:appview];73     }74 }75 76 /**按钮的点击事件*/77 -(void)appviewbtnClick:(UIButton *)btn78 {79     YYapp *apps=self.app[btn.tag];80     UILabel *showlab=[[UILabel alloc]initWithFrame:CGRectMake(60, 450, 200, 20)];81     [showlab setText:[NSString stringWithFormat: @"%@下载成功",apps.name]];82     [showlab setBackgroundColor:[UIColor lightGrayColor]];83     [self.view addSubview:showlab];84     showlab.alpha=1.0;85     86     //简单的动画效果87     [UIView animateWithDuration:2.0 animations:^{88         showlab.alpha=0;89     } completion:^(BOOL finished) {90         [showlab removeFromSuperview];91     }];92 }93 94 @end

运行效果：

三、对xib进行连线示例

1.连线示例

新建一个xib对应的视图类，继承自Uiview

 

在xib界面右上角与新建的视图类进行关联

把xib和视图类进行连线

注意：在使用中把weak改成为强引用。否则...

2.连线后的代码示例

YYViewController.m文件代码如下：

 1 // 2 //  YYViewController.m 3 //  10-xib文件的使用 4 // 5 //  Created by apple on 14-5-24. 6 //  Copyright (c) 2014年 itcase. All rights reserved. 7 // 8  9 #import "YYViewController.h"10 #import "YYapp.h"11 #import "YYappview.h"12 13 @interface YYViewController ()14 @property(nonatomic,strong)NSArray *app;15 @end16 17 @implementation YYViewController18 19 //1.加载数据信息20 -(NSArray *)app21 {22     if (!_app) {23         NSString *path=[[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];24         NSArray *temparray=[NSArray arrayWithContentsOfFile:path];25         26         //字典转模型27         NSMutableArray *arrayM=[NSMutableArray array ];28         for (NSDictionary *dict in temparray) {29             [arrayM addObject:[YYapp appWithDict:dict]];30         }31         _app=arrayM;32     }33     return _app;34 }35 36 //创建界面原型37 - (void)viewDidLoad38 {39     [super viewDidLoad];40     NSLog(@"%d",self.app.count);41     42     //九宫格布局43     int totalloc=3;44     CGFloat appviewW=80;45     CGFloat appviewH=90;46     CGFloat margin=(self.view.frame.size.width-totalloc*appviewW)/(totalloc+1);47     48     int count=self.app.count;49     for (int i=0; i<count; i++) {50         51         int row=i/totalloc;52         int loc=i%totalloc;53         CGFloat appviewX=margin + (margin +appviewW)*loc;54         CGFloat appviewY=margin + (margin +appviewH)*row;55         YYapp *app=self.app[i];56         57         //拿出xib视图58        NSArray  *apparray= [[NSBundle mainBundle]loadNibNamed:@"appxib" owner:nil options:nil];59         60         //注意这里的类型名!61         //UIView *appview=[apparray firstObject];62         YYappview  *appview=[apparray firstObject];63        64         //加载视图65         appview.frame=CGRectMake(appviewX, appviewY, appviewW, appviewH);66           [self.view addSubview:appview];67         68         appview.appimg.image=app.image;69         appview.applab.text=app.name;70         appview.appbtn.tag=i;71         72         [ appview.appbtn addTarget:self action:@selector(appviewbtnClick:) forControlEvents:UIControlEventTouchUpInside];73        74     }75 }76 77 /**按钮的点击事件*/78 -(void)appviewbtnClick:(UIButton *)btn79 {80     YYapp *apps=self.app[btn.tag];81     UILabel *showlab=[[UILabel alloc]initWithFrame:CGRectMake(60, 450, 200, 20)];82     [showlab setText:[NSString stringWithFormat: @"%@下载成功",apps.name]];83     [showlab setBackgroundColor:[UIColor lightGrayColor]];84     [self.view addSubview:showlab];85     showlab.alpha=1.0;86     87     //简单的动画效果88     [UIView animateWithDuration:2.0 animations:^{89         showlab.alpha=0;90     } completion:^(BOOL finished) {91         [showlab removeFromSuperview];92     }];93 }94 95 @end

YYappview.h文件代码（已经连线）

#import <UIKit/UIKit.h>@interface YYappview : UIView@property (strong, nonatomic) IBOutlet UIImageView *appimg;@property (strong, nonatomic) IBOutlet UILabel *applab;@property (strong, nonatomic) IBOutlet UIButton *appbtn;
@end
    （转自播客园：文顶顶，如有冒犯请谅解，可以联系本人删除）