IOS 應(yīng)用程序管理的實(shí)現(xiàn)

#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;

/** 使用字典實(shí)例化模型 */
- (instancetype)initWithDict:(NSDictionary *)dict;

/** 快速實(shí)例化一個(gè)對(duì)象 */
+ (instancetype)appInfoWithDict:(NSDictionary *)dict;

/** 返回所有plist中的數(shù)據(jù)模型數(shù)組 */
+ (NSArray *)appList;


@end

#import "AppInfo.h"

@implementation AppInfo

// 合成指令，主動(dòng)指定屬性使用的成員變量名稱(chēng)
@synthesize image = _image;

//圖片模型
- (UIImage *)image
{
  if (_image == nil) {
    _image = [UIImage imageNamed:self.icon];
  }
  return _image;
}

- (instancetype)initWithDict:(NSDictionary *)dict
{

  self = [super init];
  if (self) {
    // 用字典給屬性賦值
    //    self.name = dict[@"name"]; //將字典的內(nèi)容賦值給屬性
    //    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]];

  // 創(chuàng)建一個(gè)臨時(shí)可變數(shù)組
  NSMutableArray *arrayM = [NSMutableArray array];

  // 遍歷數(shù)組，依次轉(zhuǎn)換模型
  for (NSDictionary *dict in array) {
    [arrayM addObject:[AppInfo appInfoWithDict:dict]];
  }

  return arrayM;
}

@end

#import <UIKit/UIKit.h>

@class AppInfo;

@interface AppView : UIView

/** 類(lèi)方法，方便調(diào)用視圖 */
+ (instancetype)appView;

/** 實(shí)例化視圖，并使用appInfo設(shè)置視圖的顯示 */
+ (instancetype)appViewWithAppInfo:(AppInfo *)appInfo;

// 自定義視圖中顯示的數(shù)據(jù)來(lái)源是數(shù)據(jù)模型
// 使用模型設(shè)置自定義視圖的顯示
@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

//實(shí)例化xib
+ (instancetype)appView
{
  return [[[NSBundle mainBundle] loadNibNamed:@"AppView" owner:nil options:nil] lastObject];
}

//根據(jù)模型實(shí)例化xib
+ (instancetype)appViewWithAppInfo:(AppInfo *)appInfo
{
  // 1. 實(shí)例化一個(gè)視圖
  AppView *view = [self appView];

  // 2. 設(shè)置視圖的顯示
  view.appInfo = appInfo;//包含，AppView有appInfo的屬性

  // 3. 返回視圖
  return view;
}

/**
 利用setter方法設(shè)置視圖的界面顯示
 */
- (void)setAppInfo:(AppInfo *)appInfo
{
  _appInfo = appInfo;

  self.label.text = appInfo.name;
  self.iconView.image = appInfo.image;
}

/** 按鈕監(jiān)聽(tīng)方法 */
- (IBAction)click:(UIButton *)button
{
  // 添加一個(gè)UILabel到界面上
  UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(80, 400, 160, 40)];
  // 數(shù)值是0表示黑色，1表示純白；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就是視圖控制器中的self.view
  [self.superview addSubview:label];

  // 動(dòng)畫(huà)效果
  label.alpha = 0.0;

  // 禁用按鈕，如果點(diǎn)擊了按鈕以后就禁用按鈕
  button.enabled = NO;

  // 動(dòng)畫(huà)結(jié)束之后刪除
  [UIView animateWithDuration:1.0f animations:^{
    // 要修改的動(dòng)畫(huà)屬性
    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 ()

/** 應(yīng)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];

  // 搭建九宮格
  // 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);

    //加載第i個(gè)xib視圖
    AppView *appView = [AppView appViewWithAppInfo:self.appList[i]];

    // 設(shè)置視圖位置
    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]];

  // 創(chuàng)建一個(gè)臨時(shí)可變數(shù)組
  NSMutableArray *arrayM = [NSMutableArray array];

  // 遍歷數(shù)組，依次轉(zhuǎn)換模型
  for (NSDictionary *dict in array) {

    [arrayM addObject:[AppInfo appInfoWithDict:dict]];
  }

  return arrayM;
}

 [self setValuesForKeysWithDictionary:dict];