引用：https://github.com/iDay/WeixinActivity.git

iOS UIActivityViewController 接入WeChatSDK

[1].[代码] ViewController代码 跳至 [1] [2] [3] [4]

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#import "ViewController.h"
#import "WeixinSessionActivity.h"
#import "WeixinTimelineActivity.h"
 
@interface ViewController ()
{
     NSArray *activities;
}
 
@end
 
@implementation ViewController
 
- ( id )initWithNibName:( NSString *)nibNameOrNil bundle:( NSBundle *)nibBundleOrNil
{
     self = [ super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
     if ( self ) {
         // Custom initialization
     }
     return self ;
}
 
- ( void )viewDidLoad
{
     [ super viewDidLoad];
     // Do any additional setup after loading the view from its nib.
     activities = @[[[WeixinSessionActivity alloc] init],[[WeixinTimelineActivity alloc] init]];
     [ self showActivityButton];
}
 
- ( void )didReceiveMemoryWarning
{
     [ super didReceiveMemoryWarning];
     // Dispose of any resources that can be recreated.
}
 
- ( void )showActivityButton
{
     UIButton * activityButton = [ UIButton buttonWithType: UIButtonTypeRoundedRect ];
     [activityButton setTitle:@ "Activity" forState: UIControlStateNormal ];
     [activityButton setFrame:CGRectMake(130, 200, 60, 30)];
     [activityButton addTarget: self action: @selector (showActivityView) forControlEvents: UIControlEventTouchUpInside ];
     [ self .view addSubview:activityButton];
}
 
- ( void )showActivityView
{
     NSString * shareText = @ "The text I am Sharing" ;
     UIImage * image = [ UIImage imageNamed:@ "icon" ];
     NSURL *url = [ NSURL URLWithString:@ "www.baidu.com" ];
     NSArray * itemsToShare = @[shareText,image,url];
     UIActivityViewController * activityViewController = [[ UIActivityViewController alloc] initWithActivityItems:itemsToShare applicationActivities:activities];
     //去除特定的分享功能
     activityViewController.excludedActivityTypes = @[];
     [ self presentViewController:activityViewController animated: YES completion: nil ];
}
 
@end

[2].[代码] WeixinActivity代码 跳至 [1] [2] [3] [4]

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#import "WeixinActivity.h"
 
@implementation WeixinActivity
 
+ ( UIActivityCategory )activityCategory
{
     return UIActivityCategoryShare ;
}
 
- ( NSString *)activityType
{
     return NSStringFromClass ([ self class ]);
}
 
- ( BOOL )canPerformWithActivityItems:( NSArray *)activityItems
{
     for ( id activityItem in activityItems) {
         if ([activityItem isKindOfClass:[ UIImage class ]]) {
             return YES ;
         }
         if ([activityItem isKindOfClass:[ NSURL class ]]) {
             return YES ;
         }
     }
     return NO ;
}
 
- ( void )prepareWithActivityItems:( NSArray *)activityItems
{
     for ( id activityItem in activityItems) {
         if ([activityItem isKindOfClass:[ UIImage class ]]) {
             image = activityItem;
         }
         if ([activityItem isKindOfClass:[ NSURL class ]]) {
             url = activityItem;
         }
         if ([activityItem isKindOfClass:[ NSString class ]]) {
             title = activityItem;
         }
     }
}
 
- ( void )scaledImage
{
     if (image) {
         CGFloat width = 100.0f;
         CGFloat height = image.size.height * 100.0f / image.size.width;
         UIGraphicsBeginImageContext (CGSizeMake(width, height));
         [image drawInRect:CGRectMake(0, 0, width, height)];
         UIImage *scaledImage = UIGraphicsGetImageFromCurrentImageContext ();
         UIGraphicsEndImageContext ();
         image = scaledImage;
     }
}
 
- ( void )setThumbImage:(SendMessageToWXReq *)req
{
     if (image) {
         CGFloat width = 100.0f;
         CGFloat height = image.size.height * 100.0f / image.size.width;
         UIGraphicsBeginImageContext (CGSizeMake(width, height));
         [image drawInRect:CGRectMake(0, 0, width, height)];
         UIImage *scaledImage = UIGraphicsGetImageFromCurrentImageContext ();
         UIGraphicsEndImageContext ();
         [req.message setThumbImage:scaledImage];
     }
}
 
- ( void )performActivity
{
     SendMessageToWXReq *req = [[SendMessageToWXReq alloc] init];
     req.scene = scene;
//    req.bText = NO;
     req.message = WXMediaMessage.message;
     req.message.title = title;
//    [self setThumbImage:req];
     [ self scaledImage];
     [req.message setThumbImage:image];
     if (url) {
         WXWebpageObject *webObject = WXWebpageObject.object;
         webObject.webpageUrl = [url absoluteString];
         req.message.mediaObject = webObject;
     } else if (image) {
         WXImageObject *imageObject = WXImageObject.object;
         imageObject.imageData = UIImageJPEGRepresentation (image, 1);
         req.message.mediaObject = imageObject;
     }
     [WXApi sendReq:req];
     [ self activityDidFinish: YES ];
}
 
@end

[3].[代码] WeixinSessionActivity代码 跳至 [1] [2] [3] [4]

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#import "WeixinSessionActivity.h"
 
@implementation WeixinSessionActivity
 
- ( UIImage *)activityImage
{
     return [ UIImage imageNamed:@ "icon_session.png" ];
}
 
- ( NSString *)activityTitle
{
     return @ "微信好友" ;
}
 
@end

[4].[代码] WeixinTimelineActivity代码 跳至 [1] [2] [3] [4]

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#import "WeixinTimelineActivity.h"
 
@implementation WeixinTimelineActivity
 
- ( id )init
{
     self = [ super init];
     if ( self ) {
         scene = WXSceneTimeline;
     }
     return self ;
}
 
- ( UIImage *)activityImage
{
     return [ UIImage imageNamed:@ "icon_timeline.png" ];
}
 
- ( NSString *)activityTitle
{
     return @ "微信朋友圈" ;
}
 
 
@end

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