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　　為了方便使用，我封裝了一個分享的工具類LFSystemShareUtil。工程要引Social.framework。

 

LFSystemShareUtil.h

#import <Foundation/Foundation.h>
#import <Social/Social.h>

typedef NS_ENUM(NSInteger, LFSystemShareType) {
    LFSystemShareWeChat,//微信
    LFSystemShareQQ,//騰訊QQ
    LFSystemShareSina,//新浪微博
};

typedef NS_ENUM(NSInteger, LFSystemShareState) {
    LFSystemShareStateCancel,//取消
    LFSystemShareStateDone,//完成
    LFSystemShareStateNone,//未安裝
};


@interface LFSystemShareUtil : NSObject

/**
 直接分享到某平台
 
 @param type 平台
 @param controller 彈出分享界面的控制器
 @param items 可以僅分享圖@[UIImage]，可以放多張；或者僅分享純視頻、音樂@[NSURL]；或者一個帶文字和縮略圖的網頁@[NSURL,NSString,UIImage]，等等，總之把要分享的東西放到數組即可
 @param shareResult LFSystemShareState
 */
+ (void)shareWithType:(LFSystemShareType)type controller:(UIViewController *)controller andItems:(NSArray *)items completionHandler:(void(^)(LFSystemShareState state))shareResult;



/**
 通過選擇平台的控制面板分享

 @param controller 彈出分享界面的控制器
 @param items 可以僅分享圖@[UIImage]，可以放多張；或者僅分享純視頻、音樂@[NSURL]；或者一個帶文字和縮略圖的網頁@[NSURL,NSString,UIImage]，等等，總之把要分享的東西放到數組即可
 @param shareResult 結果回調
 */
+ (void)shareWithController:(UIViewController *)controller andItems:(NSArray *)items completionHandler:(void(^)(NSString *activityType,BOOL completed,NSArray *returnedItems,NSError *activityError))shareResult;

@end

 

LFSystemShareUtil.m

#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];
            }
        }
        
        // 彈出分享控制器
        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];
    //不出現在活動項目
    activityVC.excludedActivityTypes = @[UIActivityTypePrint, UIActivityTypeCopyToPasteboard,UIActivityTypeAssignToContact,UIActivityTypeSaveToCameraRoll,UIActivityTypeAddToReadingList];
    activityVC.completionWithItemsHandler = shareResult;
    [controller presentViewController:activityVC animated:YES completion:nil];
}

@end