iOS开发UI基础—xib的简单使用
一、简单介绍
xib和stotyboard的比较，一个轻量级一个重量级。
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@end1516@implementation YYViewController
1718//1.加载数据信息19 -(NSArray *)app
20{
21if (!_app) {
22 NSString *path=[[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];
23 NSArray *temparray=[NSArray arrayWithContentsOfFile:path];
2425//字典转模型26 NSMutableArray *arrayM=[NSMutableArray array ];
27for (NSDictionary *dict in temparray) {
28 [arrayM addObject:[YYapp appWithDict:dict]];
29 }
30 _app=arrayM;
31 }
32return _app;
33}
3435//创建界面原型36 - (void)viewDidLoad
37{
38 [super viewDidLoad];
39 NSLog(@"%d",self.app.count);
4041//九宫格布局42int totalloc=3;
43 CGFloat appviewW=80;
44 CGFloat appviewH=90;
45 CGFloat margin=(self.view.frame.size.width-totalloc*appviewW)/(totalloc+1);
4647int count=self.app.count;
48for (int i=0; i<count; i++) {
4950int row=i/totalloc;
51int loc=i%totalloc;
52 CGFloat appviewX=margin + (margin +appviewW)*loc;
53 CGFloat appviewY=margin + (margin +appviewH)*row;
54 YYapp *app=self.app[i];
5556//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);
6162 UIImageView *appviewImg=(UIImageView *)[appview viewWithTag:1];
63 appviewImg.image=app.image;
6465 UILabel *appviewlab=(UILabel *)[appview viewWithTag:2];
66 appviewlab.text=app.name;
6768 UIButton *appviewbtn=(UIButton *)[appview viewWithTag:3];
69 [appviewbtn addTarget:self action:@selector(appviewbtnClick:) forControlEvents:UIControlEventTouchUpInside];
70 appviewbtn.tag=i;
7172 [self.view addSubview:appview];
73 }
74}
7576/**按钮的点击事件*/77 -(void)appviewbtnClick:(UIButton *)btn
78{
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;
8586//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}
9394@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@end1617@implementation YYViewController
1819//1.加载数据信息20 -(NSArray *)app
21{
22if (!_app) {
23 NSString *path=[[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];
24 NSArray *temparray=[NSArray arrayWithContentsOfFile:path];
2526//字典转模型27 NSMutableArray *arrayM=[NSMutableArray array ];
28for (NSDictionary *dict in temparray) {
29 [arrayM addObject:[YYapp appWithDict:dict]];
30 }
31 _app=arrayM;
32 }
33return _app;
34}
3536//创建界面原型37 - (void)viewDidLoad
38{
39 [super viewDidLoad];
40 NSLog(@"%d",self.app.count);
4142//九宫格布局43int totalloc=3;
44 CGFloat appviewW=80;
45 CGFloat appviewH=90;
46 CGFloat margin=(self.view.frame.size.width-totalloc*appviewW)/(totalloc+1);
4748int count=self.app.count;
49for (int i=0; i<count; i++) {
5051int row=i/totalloc;
52int loc=i%totalloc;
53 CGFloat appviewX=margin + (margin +appviewW)*loc;
54 CGFloat appviewY=margin + (margin +appviewH)*row;
55 YYapp *app=self.app[i];
5657//拿出xib视图58 NSArray *apparray= [[NSBundle mainBundle]loadNibNamed:@"appxib" owner:nil options:nil];
5960//注意这里的类型名!
61//UIView *appview=[apparray firstObject];62 YYappview *appview=[apparray firstObject];
6364//加载视图65 appview.frame=CGRectMake(appviewX, appviewY, appviewW, appviewH);
66 [self.view addSubview:appview];
6768 appview.appimg.image=app.image;
69 appview.applab.text=app.name;
70 appview.appbtn.tag=i;
7172 [ appview.appbtn addTarget:self action:@selector(appviewbtnClick:) forControlEvents:UIControlEventTouchUpInside];
7374 }
75}
7677/**按钮的点击事件*/78 -(void)appviewbtnClick:(UIButton *)btn
79{
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;
8687//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}
9495@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
原文：http://www.cnblogs.com/wendingding/p/3750378.html
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