ios开发-UI基础-应用管理(单纯界面)改进4-xib封装

 1 自定义View。创建属性、传递Model进去。 2 *自定义一个appview用来描述xib,然后我们需要把xib的真实类型改变为appview(必须有这一步) 3 *用拖线的方式拿到里面的三个小的控件 4 *给这些控件进行赋数据,数据在模型中,我们拥有一个模型属性,为了从控制器中拿到模型,我们重写模型的set方法, 5 这样我们就可以通过set方法把控制器中的模型数据赋值给我们内部的模型,拿到模型后我们进行控件的赋值, 6 //重写模型的set方法 7 - (void)setAppViewModel:(AppViewModel *)appViewModel{ 8     _appViewModel = appViewModel; 9     10     11     self.head.image = [UIImage imageNamed:appViewModel.icon];12     self.nameLabel.text = appViewModel.name;13     14     15 }16 *这样我们就可以在控制器中直接赋值模型,然后显示数据17 //        2.4赋值18 AppViewModel *appViewModel = self.apps[i];19 20 21 appOldView.appViewModel = appViewModel;22 23 24 25 26 27 9. 封装创建View的代码, 让用户不知道是通过xib创建的还是通过代码创建的,安全,扩展性比较好。28 * 封装一个类方法29 + (instancetype )loadNib{30     return  [[NSBundle mainBundle]loadNibNamed:@"appView" owner:nil options:nil][0];31     32     33     34 }

 1 // 2 //  KZAppModel.h 3 //  UI基础-03-05-14 4 // 5 //  Created by hukezhu on 15/5/15. 6 // 7 // 8  9 #import <Foundation/Foundation.h>10 /*吃唐僧肉的小悟空-转载请注明出处http://www.VEVb.com/hukezhu/*/11 @interface KZAppModel : NSObject12 /**13  *  应用图标14  */15 @PRoperty (nonatomic ,copy) NSString *icon;16 /**17  *  应用名称18  */19 @property (nonatomic ,copy) NSString *name;20 21 /**22  *  通过字典来初始化对象23  *24  *  @param dict 字典对象25  *26  *  @return 已经初始化完毕的模型对象27  */28 - (instancetype)initWithDict:(NSDictionary *)dict;29 30 //类方法31 + (instancetype)appWithModelDict:(NSDictionary *)dict;32 33 @end

 1 // 2 //  KZAppModel.m 3 //  UI基础-03-05-14 4 // 5 //  Created by hukezhu on 15/5/15. 6 // 7 // 8  9 #import "KZAppModel.h"10 11 @implementation KZAppModel12 /*吃唐僧肉的小悟空-转载请注明出处http://www.VEVb.com/hukezhu/*/13 //对象方法14 -(instancetype)initWithDict:(NSDictionary *)dict{15 16     //重写构造方法的默认写法17     if(self = [super init]){18     19         //将字典的所有属性赋值给模型20         self.icon = dict[@"icon"];21         self.name = dict[@"name"];22     }23     return self;24 }25 //类方法26 +(instancetype)appWithModelDict:(NSDictionary *)dict{27 28     //注意此处是self29     return [[self alloc]initWithDict:dict];30 }31 @end

 1 // 2 //  AppView.h 3 //  UI基础-03-05-14 4 // 5 //  Created by hukezhu on 15/5/15. 6 // 7 //转载请注明出处:吃唐僧肉的小悟空http://www.VEVb.com/hukezhu/　 8  9 #import <UIKit/UIKit.h>10 @class KZAppModel;11 @interface AppView : UIView12 13 //声明一个模型属性,用来接收传过来的模型数据14 @property (nonatomic,strong)KZAppModel *appViewModel;15 16 //用来加载xib17 +(instancetype)loadNib;18 @end

 1 // 2 //  AppView.m 3 //  UI基础-03-05-14 4 // 5 //  Created by hukezhu on 15/5/15. 6 // 7 //转载请注明出处:吃唐僧肉的小悟空http://www.VEVb.com/hukezhu/　 8  9 #import "AppView.h"10 #import "KZAppModel.h"11 @interface AppView ()12 @property (nonatomic,weak)IBOutlet UIImageView *imageView;13 @property (weak, nonatomic) IBOutlet UILabel *label;14 15 -(IBAction)btnOnClick:(UIButton *)btn;16 @end17 18 19 @implementation AppView20 //重写模型的set方法21 -(void)setAppViewModel:(KZAppModel *)appViewModel{22 23     _appViewModel = appViewModel;24     self.imageView.image = [UIImage imageNamed:appViewModel.icon];25     self.label.text = appViewModel.name;26 }27 28 29 +(instancetype)loadNib{30 31     return [[NSBundle mainBundle]loadNibNamed:@"AppView" owner:nil options:nil][0];32 }33 34 35 /*吃唐僧肉的小悟空-转载请注明出处http://www.VEVb.com/hukezhu/*/36 /**37  *  按钮的点击方法38  *39  *  @param btn 将按钮本身传入方法中,哪个按钮被点击就调用这个方法40  */41 - (void)btnOnClick:(UIButton *)btn{42     43     //NSLog(@"------%@",btn);44     btn.enabled = NO;45     [btn setTitle:@"已下载" forState:UIControlStateNormal];46     47     CGFloat labelW = 120;48     CGFloat labelH = 30;49     CGFloat labelX = (self.superview.frame.size.width - labelW)* 0.5;50     CGFloat labelY = (self.superview.frame.size.height - labelH)*0.5;51     UILabel *label = [[UILabel alloc]init];52     label.frame = CGRectMake(labelX, labelY, labelW, labelH);53     label.text = @"正在下载";54     //设置字体颜色55     label.textColor = [UIColor redColor];56     //设置字体居中57     label.textAlignment = NSTextAlignmentCenter;58     //设置 背景色59     label.backgroundColor = [UIColor blackColor];60     61     //设置圆角的半径62     label.layer.cornerRadius = 8;63     //将多余的部分减掉64     label.layer.masksToBounds = YES;65     //设置透明度66     label.alpha = 0.0;67     //将label添加到view中68     [self.superview addSubview:label];69     //使用block动画,动画持续时间2秒70     [UIView animateWithDuration:2.0 animations:^{71         label.alpha = 0.5;72     } completion:^(BOOL finished) {73         if (finished) {74             [UIView animateWithDuration:2.0 delay:0.1 options:UIViewAnimationOptionCurveLinear animations:^{75                 label.alpha = 0.0;76             } completion:^(BOOL finished) {77                 //上面将透明度设置为0,界面上已经不显示这个label,但是它仍然在内存中,所以为了节约内存,仍要将其从内存中删除78                 [label removeFromSuperview];79                 80             }];81         }82     }];83     84 }85 86 @end

  1 //  2 //  ViewController.m  3 //  03-应用管理  4 //  5 //  Created by hukezhu on 15/5/14.  6 //  7 //  8   9 #import "ViewController.h" 10 #import "KZAppModel.h" 11 #import "AppView.h" 12  13 @interface ViewController () 14 @property (nonatomic,strong)NSArray *apps; 15 @end 16  17 @implementation ViewController 18  19 - (void)viewDidLoad { 20     [super viewDidLoad]; 21      22     //每一行的应用的个数 23     int totalCol = 3; 24     /*吃唐僧肉的小悟空-转载请注明出处http://www.VEVb.com/hukezhu/*/ 25      26     //添加一个小的view 27     CGFloat appW = 80; 28     CGFloat appH = 100; 29     CGFloat marginX = 20; 30     CGFloat marginY = 20; 31     CGFloat hightMargin = 30; 32     CGFloat leftMargin = (self.view.frame.size.width - totalCol * appW - (totalCol - 1) *marginX)* 0.5; 33      34      35      36     for (int i = 0; i < self.apps.count; i++) { 37          38          39         //计算行号和列号 40         int row = i / totalCol; 41         int col = i % totalCol; 42          43         CGFloat appX = leftMargin + (marginX + appW)* col; 44         CGFloat appY = hightMargin + (marginY + appH)* row; 45          46         //1.添加view 47      48         49         //首先拿到一个格子视图 50 //        UIView *appView = [[NSBundle mainBundle]loadNibNamed:@"AppView" owner:nil options:nil][0]; 51  52         AppView *appView = [AppView loadNib]; 53          54          55         //1.2设置frame 56         appView.frame = CGRectMake(appX, appY, appW, appH); 57         //1.3设置背景色(便于代码阶段验证,之后会删除) 58         //appView.backgroundColor = [UIColor redColor]; 59         //1.4将这个appView添加到view中 60         [self.view addSubview:appView]; 61          62         //加载数据 63         //NSDictionary *dict = self.apps[i]; 64         //将数据赋值给模型对象 65         KZAppModel *appModel = self.apps[i]; 66          67          68         //通过数组的特性拿到里面的小控件,进行赋值 69 //        UIImageView *imageView = (UIImageView *)appView.subviews[0]; 70 //        imageView.image = [UIImage imageNamed:appModel.icon]; 71 //         72 //        UILabel *label = appView.subviews[1]; 73 //        label.text = appModel.name; 74          75          76         appView.appViewModel = appModel; 77          78          79          80          81 //        UIButton *downBtn = (UIButton *)appView.subviews[2]; 82 //        [downBtn addTarget:self action:@selector(btnOnClick:) forControlEvents:UIControlEventTouchUpInside]; 83          84          85 //        //2.添加图片UIImageView 86 //        CGFloat imageW = 60; 87 //        CGFloat imageH = 50; 88 //        CGFloat imageX = (appW - imageW)*0.5; 89 //        CGFloat imageY = 0; 90 //        UIImageView *imageView = [[UIImageView alloc]init]; 91 //        imageView.frame = CGRectMake(imageX, imageY, imageW, imageH); 92 //        //imageView.backgroundColor = [UIColor blueColor]; 93 //        //imageView.image = [UIImage imageNamed:dict[@"icon"]]; 94 //        //从模型对象中取出数据 95 //        imageView.image = [UIImage imageNamed:appModel.icon]; 96 //        [appView addSubview:imageView]; 97 //     98 //         99 //        //3.添加应用名称100 //    101 //        CGFloat labelW = 80;102 //        CGFloat labelH = 25;103 //        CGFloat labelX = 0;104 //        CGFloat labelY = imageH;105 //        UILabel *label = [[UILabel alloc]init];106 //        label.frame = CGRectMake(labelX, labelY, labelW, labelH);107 //        //label.backgroundColor = [UIColor grayColor];108 //        //label.text = dict[@"name"];109 //        //从模型对象中取出数据name110 //        label.text = appModel.name;111 //        112 //        //设置字体大小113 //        label.font = [UIFont systemFontOfSize:13];114 //        //设置字体居中115 //        label.textAlignment = NSTextAlignmentCenter;116 //        [appView addSubview:label];117 //        118 //        //4.添加下载按钮119 //        120 //        CGFloat downloadW = 60;121 //        CGFloat downloadH = 25;122 //        CGFloat downloadX = 10;123 //        CGFloat downloadY = labelH + labelY;124 //        UIButton *downloadBtn = [[UIButton alloc]init];125 //        downloadBtn.frame = CGRectMake(downloadX, downloadY, downloadW, downloadH);126 //        //downloadBtn.backgroundColor = [UIColor yellowColor];127 //        //设置背景图片128 //        [downloadBtn setBackgroundImage:[UIImage imageNamed:@"buttongreen"] forState:UIControlStateNormal];129 //        [downloadBtn setBackgroundImage:[UIImage imageNamed:@"buttongreen_highlighted"] forState:UIControlStateHighlighted];130 //        //设置字体第一种方法131 //        [downloadBtn setTitle:@"下载" forState:UIControlStateNormal];132 //        133 //        //设置字体第二种方法(不推荐使用)134 //        downloadBtn.titleLabel.text = @"下载";135 //        136 //        //设置字体大小137 //        downloadBtn.titleLabel.font = [UIFont systemFontOfSize:15];138 //        [appView addSubview:downloadBtn];139 //        140 //        141 //        [downloadBtn addTarget:self action:@selector(btnOnClick:) forControlEvents:UIControlEventTouchUpInside];142     }143     144  145     146     147     148 }149 /**150  *  "懒加载",加载应用数据151  *152  */153 - (NSArray *)apps{154 155     //如果_apps为空,才加载数据156     if (_apps == nil) {157         //获取plist的全路径158         NSString *path = [[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];159 160         //加载数组161         NSArray *dictArray = [NSArray arrayWithContentsOfFile:path];162         163         //创建一个可变数组,来动态接收模型对象164         NSMutableArray *array = [NSMutableArray array];165         166         //通过循环,将字典数组的字典取出,转成模型对象167         for (NSDictionary *dict in dictArray) {168             KZAppModel *appModel = [KZAppModel appWithModelDict:dict];169             [array addObject:appModel];170         }171         _apps = array;172     }173     return _apps;174     /*吃唐僧肉的小悟空-转载请注明出处http://www.VEVb.com/hukezhu/*/175 }176 177 - (void)didReceiveMemoryWarning {178     [super didReceiveMemoryWarning];179     // Dispose of any resources that can be recreated.180 }181 182 @end