iOS学习 - 应用程序管理

//
//  YJAppInfo.h
//  05-应用程序管理的练习
//
//  Created by JACKY-MAC on 15-6-8.
//  Copyright (c) 2015年 www.train.com. All rights reserved.
//  字典转模型

#import <UIKit/UIKit.h>

@interface YJAppInfo : UIView
@property(nonatomic,copy)NSString *name;
@property(nonatomic,copy)NSString *icon;

@property(nonatomic,strong,readonly)UIImage *image;
- (instancetype)initWithDict:(NSDictionary *)dict;
/** 类方法可以快速实例化一个对象 */
+ (instancetype)appInfoWithDict:(NSDictionary *)dict;

+(NSArray *)appList;
@end

//
//  YJAppInfo.m
//  05-应用程序管理的练习
//
//  Created by JACKY-MAC on 15-6-8.
//  Copyright (c) 2015年 www.train.com. All rights reserved.
//

#import "YJAppInfo.h"

@implementation YJAppInfo
@synthesize image = _image;

- (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，所有与plist键值有关的方法，均在此处！
       // self.name = dict[@"name"];
        //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]];

    // 创建一个临时数组
    NSMutableArray *arrayM = [NSMutableArray array];

    // 遍历数组，依次转换模型
    for (NSDictionary *dict  in array) {

        YJAppInfo *appInfo = [YJAppInfo appInfoWithDict:dict];

        [arrayM addObject:appInfo];

    }
    return arrayM;
}
@end

//
//  YJAppView.h
//  05-应用程序管理的练习
//
//  Created by JACKY-MAC on 15-6-9.
//  Copyright (c) 2015年 www.train.com. All rights reserved.
// 封装子控件view

#import <UIKit/UIKit.h>
@class YJAppInfo;

@interface YJAppView : 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:(YJAppInfo *)appInfo;

//@property (weak, nonatomic) IBOutlet UIButton *button;

// 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)YJAppInfo *appInfo;
@end

//
//  YJAppView.m
//  05-应用程序管理的练习
//
//  Created by JACKY-MAC on 15-6-9.
//  Copyright (c) 2015年 www.train.com. All rights reserved.
//

#import "YJAppView.h"
#import "YJAppInfo.h"

@interface YJAppView ()
@property (weak, nonatomic) IBOutlet UIImageView *iconView;
@property (weak, nonatomic) IBOutlet UILabel *label;

@end

@implementation YJAppView

// 从XIB来加载自定义视图
+ (instancetype)appView
{
    return [[[NSBundle mainBundle] loadNibNamed:@"YJAppView" owner:nil options:nil] lastObject];
}

+ (instancetype)appViewWithAppInfo:(YJAppInfo *)appInfo
{
    // 1. 实例化一个视图
    YJAppView *view = [self appView];
        // 2. 设置视图的显示
    view.appInfo =appInfo;

    // 3. 返回视图
    return view;
}

- (void)setAppInfo:(YJAppInfo *)appInfo
{
    _appInfo = appInfo;

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

- (IBAction)click:(UIButton *)button
{
    // 取出appInfo

   // YJAppInfo *appInfo = self.appList[button.tag];

    // 添加一个UILabel到界面上
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(80, 400, 160, 40)];

    label.backgroundColor = [UIColor colorWithWhite:0.0 alpha:0.2];
    label.text = [NSString stringWithFormat:@"成功安装%@",self.appInfo.name];

    label.textAlignment = NSTextAlignmentCenter;
    label.font = [UIFont systemFontOfSize:12.0];

    [self.superview addSubview:label];

    // 动画效果
    // 收尾式动画，修改对象的属性，frame,bounds,alpha
    // 初始透明度，完全透明

    label.alpha = 0.0;

    button.enabled = NO;

    [button setTitle:@"下载完成" forState:UIControlStateNormal];

    // 动画结束之后删除
    // ^ 表示是block，块代码，是一个预先准备好的代码块，可以当做参数传递，在需要的时候执行！
    // 块代码在OC中，使用的非常普遍！

    [UIView animateWithDuration:1.0f animations:^{
        // 要修改的动画属性
        label.alpha = 1.0;
    } completion:^(BOOL finished) {
        [UIView animateWithDuration:3.0 animations:^{
            label.alpha = 0.0;
        } completion:^(BOOL finished) {

            [label removeFromSuperview];
        }];
    }];
}

@end


//
//  YJViewController.m
//  05-应用程序管理的练习
//
//  Created by JACKY-MAC on 15-6-5.
//  Copyright (c) 2015年 www.train.com. All rights reserved.
//主控制器

#import "YJViewController.h"
#import "YJAppInfo.h"
#import "YJAppView.h"

#define kAppViewW 80
#define kAppViewH 90
#define kColCount 3
#define kStartY 20
@interface YJViewController ()
@property(nonatomic,strong)NSArray *appList;
@end

@implementation YJViewController

- (NSArray *)appList
{
    if (_appList == nil) {
        //_appList = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"app.plist" ofType:nil]];
                 // 将临时数组为属性赋值
        _appList = [YJAppInfo appList];
    }
    return _appList;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    CGFloat marginX = (self.view.bounds.size.width - kColCount * kAppViewW) / (kColCount + 1);
    CGFloat marginY = 10;

    for (int i = 0; i < self.appList.count; i++) {
        // 行  横为行
        // 0, 1, 2 => 0
        // 3, 4, 5 => 1
        int row = i /kColCount;

        // 列  竖为列
        // 0, 3, 6 => 0
        // 1, 4, 7 => 1
        // 2, 5, 8 => 2
        int col = i % kColCount;

        CGFloat x = marginX + col * (marginX + kAppViewW);
        CGFloat y =kStartY + marginY +row * (marginY + kAppViewH);

        // 实现视图内部细节
        YJAppView *appView = [YJAppView appViewWithAppInfo:self.appList[i]];

        appView.frame = CGRectMake(x, y, kAppViewW, kAppViewH);

        [self.view addSubview:appView];
@end