IOS 应用程序管理的实现

#import <Foundation/Foundation.h>#import <UIKit/UIKit.h>@interface AppInfo : NSObject@property (nonatomic, copy) NSString *name;@property (nonatomic, copy) NSString *icon;@property (nonatomic, strong, readonly) UIImage *image;/** 使用字典实例化模型 */- (instancetype)initWithDict:(NSDictionary *)dict;/** 快速实例化一个对象 */+ (instancetype)appInfoWithDict:(NSDictionary *)dict;/** 返回所有plist中的数据模型数组 */+ (NSArray *)appList;@end

#import "AppInfo.h"@implementation AppInfo// 合成指令，主动指定属性使用的成员变量名称@synthesize image = _image;//图片模型- (UIImage *)image{  if (_image == nil) {    _image = [UIImage imageNamed:self.icon];  }  return _image;}- (instancetype)initWithDict:(NSDictionary *)dict{  self = [super init];  if (self) {    // 用字典给属性赋值    //    self.name = dict[@"name"]; //将字典的内容赋值给属性    //    self.icon = dict[@"icon"];    [self setValuesForKeysWithDictionary:dict];  }  return self;}+ (instancetype)appInfoWithDict:(NSDictionary *)dict{  return [[self alloc] initWithDict:dict];}+ (NSArray *)appList{  NSArray *array = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"app.plist" ofType:nil]];  // 创建一个临时可变数组  NSMutableArray *arrayM = [NSMutableArray array];  // 遍历数组，依次转换模型  for (NSDictionary *dict in array) {    [arrayM addObject:[AppInfo appInfoWithDict:dict]];  }  return arrayM;}@end

#import <UIKit/UIKit.h>@class AppInfo;@interface AppView : UIView/** 类方法，方便调用视图 */+ (instancetype)appView;/** 实例化视图，并使用appInfo设置视图的显示 */+ (instancetype)appViewWithAppInfo:(AppInfo *)appInfo;// 自定义视图中显示的数据来源是数据模型// 使用模型设置自定义视图的显示@property (nonatomic, strong) AppInfo *appInfo;@end

#import "AppView.h"#import "AppInfo.h"@interface AppView()@property (weak, nonatomic) IBOutlet UIImageView *iconView;@property (weak, nonatomic) IBOutlet UILabel *label;@end@implementation AppView//实例化xib+ (instancetype)appView{  return [[[NSBundle mainBundle] loadNibNamed:@"AppView" owner:nil options:nil] lastObject];}//根据模型实例化xib+ (instancetype)appViewWithAppInfo:(AppInfo *)appInfo{  // 1. 实例化一个视图  AppView *view = [self appView];  // 2. 设置视图的显示  view.appInfo = appInfo;//包含，AppView有appInfo的属性  // 3. 返回视图  return view;}/** 利用setter方法设置视图的界面显示 */- (void)setAppInfo:(AppInfo *)appInfo{  _appInfo = appInfo;  self.label.text = appInfo.name;  self.iconView.image = appInfo.image;}/** 按钮监听方法 */- (IBAction)click:(UIButton *)button{  // 添加一个UILabel到界面上  UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(80, 400, 160, 40)];  // 数值是0表示黑色，1表示纯白；alpha表示透明度  label.backgroundColor = [UIColor colorWithWhite:0.0 alpha:0.2];  label.text = self.appInfo.name;  label.textAlignment = NSTextAlignmentCenter;  // self.superview就是视图控制器中的self.view  [self.superview addSubview:label];  // 动画效果  label.alpha = 0.0;  // 禁用按钮，如果点击了按钮以后就禁用按钮  button.enabled = NO;  // 动画结束之后删除  [UIView animateWithDuration:1.0f animations:^{    // 要修改的动画属性    label.alpha = 1.0;  } completion:^(BOOL finished) {    [UIView animateWithDuration:1.0 animations:^{      label.alpha = 0.0;    } completion:^(BOOL finished)       [label removeFromSuperview];    }];  }];}@end

#import "ViewController.h"#import "AppInfo.h"#import "AppView.h"#define kAppViewW 80#define kAppViewH 90#define kColCount 3#define kStartY  20@interface ViewController ()/** 应用程序列表 */@property (nonatomic, strong) NSArray *appList;@end@implementation ViewController- (NSArray *)appList{  if (_appList == nil) {    _appList = [AppInfo appList];  }  return _appList;}- (void)viewDidLoad{  [super viewDidLoad];  // 搭建九宫格  // 320 - 3 * 80 = 80 / 4 = 20  CGFloat marginX = (self.view.bounds.size.width - kColCount * kAppViewW) / (kColCount + 1);  CGFloat marginY = 10;  for (int i = 0; i < self.appList.count; i++) {    // 行    int row = i / kColCount;    // 列    int col = i % kColCount;    CGFloat x = marginX + col * (marginX + kAppViewW);    CGFloat y = kStartY + marginY + row * (marginY + kAppViewH);    //加载第i个xib视图    AppView *appView = [AppView appViewWithAppInfo:self.appList[i]];    // 设置视图位置    appView.frame = CGRectMake(x, y, kAppViewW, kAppViewH);    [self.view addSubview:appView];    }}

- (instancetype)initWithDict:(NSDictionary *)dict{  self = [super init];  if (self) {    [self setValuesForKeysWithDictionary:dict];  }  return self;}+ (instancetype)appInfoWithDict:(NSDictionary *)dict{  return [[self alloc] initWithDict:dict];}+ (NSArray *)appList{  NSArray *array = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"app.plist" ofType:nil]];  // 创建一个临时可变数组  NSMutableArray *arrayM = [NSMutableArray array];  // 遍历数组，依次转换模型  for (NSDictionary *dict in array) {    [arrayM addObject:[AppInfo appInfoWithDict:dict]];  }  return arrayM;}

 [self setValuesForKeysWithDictionary:dict];