ios开发-UI基础-应用管理(单纯界面)改进5-使用代理实现监听下载按钮的点击(delegate)

 1 // 2 //  AppView.h 3 //  UI基础-03-05-14 4 // 5 //  Created by hukezhu on 15/5/15. 6 // 7 // 8  9 #import <UIKit/UIKit.h>10 @class KZAppModel;11 @class AppView;12 13 14 15 @PRotocol AppViewProtocol <NSObject>16 17 - (void)appViewDownload:(AppView *)appView;18 19 @end20 21 22 23 24 25 @interface AppView : UIView26 27 //声明一个模型属性,用来接收传过来的模型数据28 @property (nonatomic,strong)KZAppModel *appViewModel;29 30 31 //声明一个代理的属性32 @property(nonatomic,assign) id<AppViewProtocol> delegate;33 34 //用来加载xib35 +(instancetype)loadNib;36 @end

 1 // 2 //  AppView.m 3 //  UI基础-03-05-14 4 // 5 //  Created by hukezhu on 15/5/15. 6 // 7 //[注意]转载时请注明出处博客园-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     if ([self.delegate respondsToSelector:@selector(appViewDownload:)]) {48         [self.delegate appViewDownload:self];49     }50     51     52 }53 54 @end

 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 //  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  14 @interface ViewController () <AppViewProtocol> 15 @property (nonatomic,strong)NSArray *apps; 16 @end 17  18 @implementation ViewController 19  20 - (void)viewDidLoad { 21     [super viewDidLoad]; 22      23     //每一行的应用的个数 24     int totalCol = 3; 25     /*吃唐僧肉的小悟空-转载请注明出处http://www.VEVb.com/hukezhu/*/ 26      27     //添加一个小的view 28     CGFloat appW = 80; 29     CGFloat appH = 100; 30     CGFloat marginX = 20; 31     CGFloat marginY = 20; 32     CGFloat hightMargin = 30; 33     CGFloat leftMargin = (self.view.frame.size.width - totalCol * appW - (totalCol - 1) *marginX)* 0.5; 34      35      36      37     for (int i = 0; i < self.apps.count; i++) { 38          39          40         //计算行号和列号 41         int row = i / totalCol; 42         int col = i % totalCol; 43          44         CGFloat appX = leftMargin + (marginX + appW)* col; 45         CGFloat appY = hightMargin + (marginY + appH)* row; 46          47         //1.添加view 48      49         50         //首先拿到一个格子视图 51 //        UIView *appView = [[NSBundle mainBundle]loadNibNamed:@"AppView" owner:nil options:nil][0]; 52  53         AppView *appView = [AppView loadNib]; 54          55          56         //1.2设置frame 57         appView.frame = CGRectMake(appX, appY, appW, appH); 58         //1.3设置背景色(便于代码阶段验证,之后会删除) 59         //appView.backgroundColor = [UIColor redColor]; 60         //1.4将这个appView添加到view中 61         [self.view addSubview:appView]; 62          63         //加载数据 64         //NSDictionary *dict = self.apps[i]; 65         //将数据赋值给模型对象 66         KZAppModel *appModel = self.apps[i]; 67          68          69         //通过数组的特性拿到里面的小控件,进行赋值 70 //        UIImageView *imageView = (UIImageView *)appView.subviews[0]; 71 //        imageView.image = [UIImage imageNamed:appModel.icon]; 72 //         73 //        UILabel *label = appView.subviews[1]; 74 //        label.text = appModel.name; 75          76          77         appView.appViewModel = appModel; 78          79          80          81 #warning 设置视图的代理为控制器: 82          83         appView.delegate = self; 84          85          86 //        UIButton *downBtn = (UIButton *)appView.subviews[2]; 87 //        [downBtn addTarget:self action:@selector(btnOnClick:) forControlEvents:UIControlEventTouchUpInside]; 88          89          90 //        //2.添加图片UIImageView 91 //        CGFloat imageW = 60; 92 //        CGFloat imageH = 50; 93 //        CGFloat imageX = (appW - imageW)*0.5; 94 //        CGFloat imageY = 0; 95 //        UIImageView *imageView = [[UIImageView alloc]init]; 96 //        imageView.frame = CGRectMake(imageX, imageY, imageW, imageH); 97 //        //imageView.backgroundColor = [UIColor blueColor]; 98 //        //imageView.image = [UIImage imageNamed:dict[@"icon"]]; 99 //        //从模型对象中取出数据100 //        imageView.image = [UIImage imageNamed:appModel.icon];101 //        [appView addSubview:imageView];102 //    103 //        104 //        //3.添加应用名称105 //    106 //        CGFloat labelW = 80;107 //        CGFloat labelH = 25;108 //        CGFloat labelX = 0;109 //        CGFloat labelY = imageH;110 //        UILabel *label = [[UILabel alloc]init];111 //        label.frame = CGRectMake(labelX, labelY, labelW, labelH);112 //        //label.backgroundColor = [UIColor grayColor];113 //        //label.text = dict[@"name"];114 //        //从模型对象中取出数据name115 //        label.text = appModel.name;116 //        117 //        //设置字体大小118 //        label.font = [UIFont systemFontOfSize:13];119 //        //设置字体居中120 //        label.textAlignment = NSTextAlignmentCenter;121 //        [appView addSubview:label];122 //        123 //        //4.添加下载按钮124 //        125 //        CGFloat downloadW = 60;126 //        CGFloat downloadH = 25;127 //        CGFloat downloadX = 10;128 //        CGFloat downloadY = labelH + labelY;129 //        UIButton *downloadBtn = [[UIButton alloc]init];130 //        downloadBtn.frame = CGRectMake(downloadX, downloadY, downloadW, downloadH);131 //        //downloadBtn.backgroundColor = [UIColor yellowColor];132 //        //设置背景图片133 //        [downloadBtn setBackgroundImage:[UIImage imageNamed:@"buttongreen"] forState:UIControlStateNormal];134 //        [downloadBtn setBackgroundImage:[UIImage imageNamed:@"buttongreen_highlighted"] forState:UIControlStateHighlighted];135 //        //设置字体第一种方法136 //        [downloadBtn setTitle:@"下载" forState:UIControlStateNormal];137 //        138 //        //设置字体第二种方法(不推荐使用)139 //        downloadBtn.titleLabel.text = @"下载";140 //        141 //        //设置字体大小142 //        downloadBtn.titleLabel.font = [UIFont systemFontOfSize:15];143 //        [appView addSubview:downloadBtn];144 //        145 //        146 //        [downloadBtn addTarget:self action:@selector(btnOnClick:) forControlEvents:UIControlEventTouchUpInside];147     }148     149  150     151     152     153 }154 155 156 157 -(void)appViewDownload:(AppView *)appView{158 159     160     161     CGFloat labelW = 120;162     CGFloat labelH = 30;163     CGFloat labelX = (self.view.frame.size.width - labelW)* 0.5;164     CGFloat labelY = (self.view.frame.size.height - labelH)*0.5;165     UILabel *label = [[UILabel alloc]init];166     label.frame = CGRectMake(labelX, labelY, labelW, labelH);167     label.text = @"正在下载";168     //设置字体颜色169     label.textColor = [UIColor redColor];170     //设置字体居中171     label.textAlignment = NSTextAlignmentCenter;172     //设置 背景色173     label.backgroundColor = [UIColor blackColor];174     175     //设置圆角的半径176     label.layer.cornerRadius = 8;177     //将多余的部分减掉178     label.layer.masksToBounds = YES;179     //设置透明度180     label.alpha = 0.0;181     //将label添加到view中182     [self.view addSubview:label];183     //使用block动画,动画持续时间2秒184     [UIView animateWithDuration:2.0 animations:^{185         label.alpha = 0.5;186     } completion:^(BOOL finished) {187         if (finished) {188             [UIView animateWithDuration:2.0 delay:0.1 options:UIViewAnimationOptionCurveLinear animations:^{189                 label.alpha = 0.0;190             } completion:^(BOOL finished) {191                 //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192                 [label removeFromSuperview];193                 194             }];195         }196     }];197 }198 /**199  *  "懒加载",加载应用数据200  *201  */202 - (NSArray *)apps{203 204     //如果_apps为空,才加载数据205     if (_apps == nil) {206         //获取plist的全路径207         NSString *path = [[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];208 209         //加载数组210         NSArray *dictArray = [NSArray arrayWithContentsOfFile:path];211         212         //创建一个可变数组,来动态接收模型对象213         NSMutableArray *array = [NSMutableArray array];214         215         //通过循环,将字典数组的字典取出,转成模型对象216         for (NSDictionary *dict in dictArray) {217             KZAppModel *appModel = [KZAppModel appWithModelDict:dict];218             [array addObject:appModel];219         }220         _apps = array;221     }222     return _apps;223     /*吃唐僧肉的小悟空-转载请注明出处http://www.VEVb.com/hukezhu/*/224 }225 226 - (void)didReceiveMemoryWarning {227     [super didReceiveMemoryWarning];228     // Dispose of any resources that can be recreated.229 }230 231 @end