这个博客申请了有一段时间了,觉得好像是该写点什么了。这篇文章主要是关于一些xib的简单的用法,希望可以帮助到刚刚使用xib的新手们。
什么是xib? xib能做什么?用来描述软件界面的文件。
如果没有xib,所有的界面都需要通过代码来手动创建。
有了xib以后,可以在xib中进行可视化开发,然后加载xib文件的时候,系统自动生成对应的代码来创建界面。
与xib类似的还有storyboard文件。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:
//// YYViewController.m// 10-xib文件的使用//// Created by apple on 14-5-24.// Copyright (c) 2014年 itcase. All rights reserved.//#import "YYViewController.h"#import "YYapp.h"@interface YYViewController ()@property(nonatomic,strong)NSArray *app;@end@implementation YYViewController//1.加载数据信息-(NSArray *)app{if (!_app) {NSString *path=[[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];NSArray *temparray=[NSArray arrayWithContentsOfFile:path];//字典转模型NSMutableArray *arrayM=[NSMutableArray array ];for (NSDictionary *dict in temparray) {[arrayM addObject:[YYapp appWithDict:dict]];}_app=arrayM;}return _app;}//创建界面原型- (void)viewDidLoad{[super viewDidLoad];NSLog(@"%d",self.app.count);//九宫格布局int totalloc=3;CGFloat appviewW=80;CGFloat appviewH=90;CGFloat margin=(self.view.frame.size.width-totalloc*appviewW)/(totalloc+1);int count=self.app.count;for (int i=0; i<count; i++) {int row=i/totalloc;int loc=i%totalloc;CGFloat appviewX=margin + (margin +appviewW)*loc;CGFloat appviewY=margin + (margin +appviewH)*row;YYapp *app=self.app[i];//拿出xib视图NSArray *apparray= [[NSBundle mainBundle]loadNibNamed:@"appxib" owner:nil options:nil];UIView *appview=[apparray firstObject];//加载视图appview.frame=CGRectMake(appviewX, appviewY, appviewW, appviewH);UIImageView *appviewImg=(UIImageView *)[appview viewWithTag:1];appviewImg.image=app.image;UILabel *appviewlab=(UILabel *)[appview viewWithTag:2];appviewlab.text=app.name;UIButton *appviewbtn=(UIButton *)[appview viewWithTag:3];[appviewbtn addTarget:self action:@selector(appviewbtnClick:) forControlEvents:UIControlEventTouchUpInside];appviewbtn.tag=i;[self.view addSubview:appview];}}/**按钮的点击事件*/-(void)appviewbtnClick:(UIButton *)btn{YYapp *apps=self.app[btn.tag];UILabel *showlab=[[UILabel alloc]initWithFrame:CGRectMake(60, 450, 200, 20)];[showlab setText:[NSString stringWithFormat: @"%@下载成功",apps.name]];[showlab setBackgroundColor:[UIColor lightGrayColor]];[self.view addSubview:showlab];showlab.alpha=1.0;//简单的动画效果[UIView animateWithDuration:2.0 animations:^{showlab.alpha=0;} completion:^(BOOL finished) {[showlab removeFromSuperview];}];}@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:
//// YYViewController.m// 10-xib文件的使用//// Created by apple on 14-5-24.// Copyright (c) 2014年 itcase. All rights reserved.//#import "YYViewController.h"#import "YYapp.h"#import "YYappview.h"@interface YYViewController ()@property(nonatomic,strong)NSArray *app;@end@implementation YYViewController//1.加载数据信息-(NSArray *)app{if (!_app) {NSString *path=[[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];NSArray *temparray=[NSArray arrayWithContentsOfFile:path];//字典转模型NSMutableArray *arrayM=[NSMutableArray array ];for (NSDictionary *dict in temparray) {[arrayM addObject:[YYapp appWithDict:dict]];}_app=arrayM;}return _app;}//创建界面原型- (void)viewDidLoad{[super viewDidLoad];NSLog(@"%d",self.app.count);//九宫格布局int totalloc=3;CGFloat appviewW=80;CGFloat appviewH=90;CGFloat margin=(self.view.frame.size.width-totalloc*appviewW)/(totalloc+1);int count=self.app.count;for (int i=0; i<count; i++) {int row=i/totalloc;int loc=i%totalloc;CGFloat appviewX=margin + (margin +appviewW)*loc;CGFloat appviewY=margin + (margin +appviewH)*row;YYapp *app=self.app[i];//拿出xib视图NSArray *apparray= [[NSBundle mainBundle]loadNibNamed:@"appxib" owner:nil options:nil];//注意这里的类型名!//UIView *appview=[apparray firstObject];YYappview *appview=[apparray firstObject];//加载视图appview.frame=CGRectMake(appviewX, appviewY, appviewW, appviewH); [self.view addSubview:appview];appview.appimg.image=app.image;appview.applab.text=app.name;appview.appbtn.tag=i;[ appview.appbtn addTarget:self action:@selector(appviewbtnClick:) forControlEvents:UIControlEventTouchUpInside];}}/**按钮的点击事件*/-(void)appviewbtnClick:(UIButton *)btn{YYapp *apps=self.app[btn.tag];UILabel *showlab=[[UILabel alloc]initWithFrame:CGRectMake(60, 450, 200, 20)];[showlab setText:[NSString stringWithFormat: @"%@下载成功",apps.name]];[showlab setBackgroundColor:[UIColor lightGrayColor]];[self.view addSubview:showlab];showlab.alpha=1.0;//简单的动画效果[UIView animateWithDuration:2.0 animations:^{showlab.alpha=0;} completion:^(BOOL finished) {[showlab removeFromSuperview];}];}@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
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。