勤之时 - 表示层（三）

这一节讲分享的部分。功能描述如下：

【今日故事】View Controller

• 背景图为每日故事的图片
• 左下角为一个二维码，扫描或者识别二维码跳转到APPLE Store的改应用的下载页面。
• 右下角为今日日期以及今日故事的标题。
• 二维码上部为今日故事的介绍。
• 左上角为【关闭】按钮
• 右上角为【分享】按钮，点击弹出分享菜单，如右图。
• 分享使用了第三方库：ShareSDK

MVC设计考虑：

• Controller：
  • ILDStoryViewController: 就是整个今日故事的VC。
• Model：
  • ILDStoryModel:可以通过[[ILDStoryDataCenter sharedInstance] prepareStoryModel]获得。
• View：
  • ILDSharedView：即背景图+二维码+日期+今日故事标题+今日故事介绍，用来分享的图片。

详细编码：
ILDSharedView的编码：

• 没什么复杂的，主要还是布局的问题。背景图，二维码，日期，标题，介绍为5个需要添加的控件。

@interface ILDSharedView()

@property (nonatomic, strong) UIImageView *storyImageView;
@property (nonatomic, strong) UIImageView *codeImage;
@property (nonatomic, strong) UILabel *dateLabel;
@property (nonatomic, strong) UILabel *storyTitleLabel;
@property (nonatomic, strong) UILabel *storyDetailLabel;

@end

• 初始化函数

- (instancetype)initWithStoryImage:(UIImage *)image storyTitle:(NSString *)storyTitle storyDetail:(NSString *)storyDetail {
    if (self = [super init]) {
        self.storyImageView.image = image;
        self.storyTitleLabel.text = storyTitle;
        self.storyDetailLabel.text = storyDetail;
        
        [self addSubview:self.storyImageView];
        [self addSubview:self.codeImage];
        [self addSubview:self.dateLabel];
        [self addSubview:self.storyTitleLabel];
        [self addSubview:self.storyDetailLabel];
        
    }
    
    return self;
}

• 其他就是控件的初始化以及布局了。不详细描述了。

ILDStoryViewController 编码：

• 控件及Model:除了基本的关闭，分享按钮，以及Title，主要就是把SharedView添加进来。 Model方面，获取storyModel即可。

@interface ILDStoryViewController ()

@property(nonatomic, strong) UIButton *closeButton;
@property(nonatomic, strong) UIButton *sharingButton;
@property(nonatomic, strong) UILabel *titleLabel;
@property(nonatomic, strong) ILDSharedView *sharedView;

@property(nonatomic, strong) ILDStoryModel *storyModel;

分享按钮的事件：

- (void)clickCloseButton:(id)sender {
    [self dismissViewControllerAnimated:YES completion:nil];
}

- (void)clickSharingButton:(id)sender {
    UIImage *sharedImage = [self.sharedView il_viewToImage];
    [ILDShareSDKHelper shareMessage:self.storyModel.todaysTitle image:sharedImage onView:self.sharingButton];
}

这里定义了一个ILDShareSDKHelper类：
主要定义了：

+ (void)initShareSDK;
+ (void)shareMessage:(NSString *)message image:(UIImage *)image onView:(UIView *)view;

实现如下：

+ (void)initShareSDK {
    [ShareSDK registerApp:kShareSDKApplicationId
          activePlatforms:@[
                            @(SSDKPlatformTypeMail),
                            @(SSDKPlatformTypeSMS),
                            @(SSDKPlatformTypeWechat),
                            @(SSDKPlatformTypeQQ),
                            ]
                 onImport:^(SSDKPlatformType platformType) {
                     switch (platformType)
                     {
                         case SSDKPlatformTypeWechat:
                             [ShareSDKConnector connectWeChat:[WXApi class] delegate:self];
                             break;
                         case SSDKPlatformTypeQQ:
                             [ShareSDKConnector connectQQ:[QQApiInterface class] tencentOAuthClass:[TencentOAuth class]];
                             break;
                         default:
                             break;
                     }
                 }
          onConfiguration:^(SSDKPlatformType platformType, NSMutableDictionary *appInfo) {
              switch (platformType)
              {
                  case SSDKPlatformTypeWechat:
                      [appInfo SSDKSetupWeChatByAppId:kWXApplicationId
                                            appSecret:kWXApplicationSecret];
                      break;
                  case SSDKPlatformTypeQQ:
                      [appInfo SSDKSetupQQByAppId:kQQApplicationId
                                           appKey:kQQApplicationSecret
                                         authType:SSDKAuthTypeBoth];
                  default:
                      break;
              }
          }];
}

+ (void)shareMessage:(NSString *)message image:(UIImage *)image onView:(UIView *)view {
    
    UIViewController *currentController = [view getCurrentViewController];
    
    //1、创建分享参数（必要）
    NSMutableDictionary *shareParams = [NSMutableDictionary dictionary];
    NSArray* imageArray = @[image];
    [shareParams SSDKSetupShareParamsByText:message
                                     images:imageArray
                                        url:[NSURL URLWithString:kAppURL]
                                      title:@"勤之时"
                                       type:SSDKContentTypeAuto];
    
    [shareParams SSDKSetupWeChatParamsByText:message title:@"勤之时" url:[NSURL URLWithString:kAppURL] thumbImage:[UIImage imageNamed:@"Icon-share.png"] image:image musicFileURL:nil extInfo:nil fileData:nil emoticonData:nil type:SSDKContentTypeImage forPlatformSubType:SSDKPlatformSubTypeWechatTimeline];
    
    [shareParams SSDKSetupWeChatParamsByText:message title:@"勤之时" url:[NSURL URLWithString:kAppURL] thumbImage:[UIImage imageNamed:@"Icon-share.png"] image:image musicFileURL:nil extInfo:nil fileData:nil emoticonData:nil type:SSDKContentTypeImage forPlatformSubType:SSDKPlatformSubTypeWechatSession];
    
    [shareParams SSDKSetupQQParamsByText:message title:@"勤之时" url:[NSURL URLWithString:kAppURL] thumbImage:[UIImage imageNamed:@"Icon-share.png"] image:image type:SSDKContentTypeImage forPlatformSubType:SSDKPlatformSubTypeQZone];
    
    [shareParams SSDKSetupQQParamsByText:message title:@"勤之时" url:[NSURL URLWithString:kAppURL] thumbImage:[UIImage imageNamed:@"Icon-share.png"] image:image type:SSDKContentTypeImage forPlatformSubType:SSDKPlatformSubTypeQQFriend];
    
    //2、分享
    [ShareSDK showShareActionSheet:view
                             items:nil
                       shareParams:shareParams
               onShareStateChanged:^(SSDKResponseState state, SSDKPlatformType platformType, NSDictionary *userData, SSDKContentEntity *contentEntity, NSError *error, BOOL end) {
                   
                   switch (state) {
                       case SSDKResponseStateBegin:
                       {
                           [MBProgressHUD showHUDAddedTo:currentController.view animated:YES];
                           break;
                       }
                       case SSDKResponseStateSuccess:
                       {
                           //
                       }
                       case SSDKResponseStateFail:
                       {
                           if (!error) {
                               break;
                           }
                           
                           if (platformType == SSDKPlatformTypeSMS && [error code] == 201) {
                               [currentController presentAlertTitle:@"分享失败" message:@"失败原因可能是：1、短信应用没有设置帐号；2、设备不支持短信应用；3、短信应用在iOS 7以上才能发送带附件的短信。"];
                               break;
                           } else if(platformType == SSDKPlatformTypeMail && [error code] == 201) {
                               [currentController presentAlertTitle:@"分享失败" message:@"失败原因可能是：1、邮件应用没有设置帐号；2、设备不支持邮件应用；"];
                               break;
                           } else {
                               [currentController presentAlertTitle:@"分享失败" message:[NSString stringWithFormat:@"%@",error]];
                               break;
                           }
                       }
                       case SSDKResponseStateCancel:
                       {
                           break;
                       }
                       default:
                           break;
                   }
                   
                   if (state != SSDKResponseStateBegin) {
                       [MBProgressHUD hideHUDForView:currentController.view animated:YES];
                   }
               }];
}