#import <Foundation/Foundation.h>

#import <Social/Social.h>

typedef NS_ENUM(NSInteger, LFSystemShareType) {

    LFSystemShareWeChat,//微信

    LFSystemShareQQ,//腾讯QQ

    LFSystemShareSina,//新浪微博

};

typedef NS_ENUM(NSInteger, LFSystemShareState) {

    LFSystemShareStateCancel,//取消

    LFSystemShareStateDone,//完成

    LFSystemShareStateNone,//未安装

};

@interface LFSystemShareUtil : NSObject

/**

 直接分享到某平台

 @param type 平台

 @param controller 弹出分享界面的控制器

 @param items 可以仅分享图@[UIImage]，可以放多张；或者仅分享纯视频、音乐@[NSURL]；或者一个带文字和缩略图的网页@[NSURL,NSString,UIImage]，等等，总之把要分享的东西放到数组即可

 @param shareResult LFSystemShareState

 */

+ (void)shareWithType:(LFSystemShareType)type controller:(UIViewController *)controller andItems:(NSArray *)items completionHandler:(void(^)(LFSystemShareState state))shareResult;

/**

 通过选择平台的控制面板分享

 @param controller 弹出分享界面的控制器

 @param items 可以仅分享图@[UIImage]，可以放多张；或者仅分享纯视频、音乐@[NSURL]；或者一个带文字和缩略图的网页@[NSURL,NSString,UIImage]，等等，总之把要分享的东西放到数组即可

 @param shareResult 结果回调

 */

+ (void)shareWithController:(UIViewController *)controller andItems:(NSArray *)items completionHandler:(void(^)(NSString *activityType,BOOL completed,NSArray *returnedItems,NSError *activityError))shareResult;

@end

#import "LFSystemShareUtil.h"

@implementation LFSystemShareUtil

+ (void)shareWithType:(LFSystemShareType)type controller:(UIViewController *)controller andItems:(NSArray *)items completionHandler:(void(^)(LFSystemShareState state))shareResult {

    NSString *serviceType = @"";

    switch (type){

        case LFSystemShareWeChat:

            serviceType = @"com.tencent.xin.sharetimeline";

            break;

        case LFSystemShareQQ:

            serviceType = @"com.tencent.mqq.ShareExtension";

            break;

        case LFSystemShareSina:

            serviceType = @"com.apple.share.SinaWeibo.post";

            break;

        default:

            break;

    }

    /*

     <NSExtension: 0x1741735c0> {id = com.apple.share.Flickr.post}",

     "<NSExtension: 0x174173740> {id = com.taobao.taobao4iphone.ShareExtension}",

     "<NSExtension: 0x174173a40> {id = com.apple.reminders.RemindersEditorExtension}",

     "<NSExtension: 0x174173bc0> {id = com.apple.share.Vimeo.post}",

     "<NSExtension: 0x174173ec0> {id = com.apple.share.Twitter.post}",

     "<NSExtension: 0x174174040> {id = com.apple.mobileslideshow.StreamShareService}",

     "<NSExtension: 0x1741741c0> {id = com.apple.Health.HealthShareExtension}",

     "<NSExtension: 0x1741744c0> {id = com.apple.mobilenotes.SharingExtension}",

     "<NSExtension: 0x174174640> {id = com.alipay.iphoneclient.ExtensionSchemeShare}",

     "<NSExtension: 0x174174880> {id = com.apple.share.Facebook.post}",

     "<NSExtension: 0x174174a00> {id = com.apple.share.TencentWeibo.post}

     */

    /*

     "<NSExtension: 0x174174340> {id = com.tencent.xin.sharetimeline}", //微信

     "<NSExtension: 0x174173d40> {id = com.tencent.mqq.ShareExtension}", //QQ

     "<NSExtension: 0x1741738c0> {id = com.apple.share.SinaWeibo.post}", //微博

     */

    if ([SLComposeViewController isAvailableForServiceType:serviceType]) {

        SLComposeViewController *composeVC = [SLComposeViewController composeViewControllerForServiceType:serviceType];

        for ( id obj in items){

            if ([obj isKindOfClass:[UIImage class]]){

                [composeVC addImage:(UIImage *)obj];

            }else if ([obj isKindOfClass:[NSURL class]]){

                [composeVC addURL:(NSURL *)obj];

            } else if ([obj isKindOfClass:[NSString class]]) {

                [composeVC setInitialText:(NSString *)obj];

            }

        }

        // 弹出分享控制器

        composeVC.completionHandler = ^(SLComposeViewControllerResult result) {

            if (shareResult) {

                shareResult((LFSystemShareState)result);

            }

        };

        [controller presentViewController:composeVC animated:YES completion:nil];

    } else {

        if (shareResult) {

            shareResult(LFSystemShareStateNone);

        }

    }

}

+ (void)shareWithController:(UIViewController *)controller andItems:(NSArray *)items completionHandler:(void(^)(NSString *activityType,BOOL completed,NSArray *returnedItems,NSError *activityError))shareResult {

    UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:items applicationActivities:nil];

    //不出现在活动项目

    activityVC.excludedActivityTypes = @[UIActivityTypePrint, UIActivityTypeCopyToPasteboard,UIActivityTypeAssignToContact,UIActivityTypeSaveToCameraRoll,UIActivityTypeAddToReadingList];

    activityVC.completionWithItemsHandler = shareResult;

    [controller presentViewController:activityVC animated:YES completion:nil];

}

@end