iOS 原生分享

UIActivityViewController是iOS原生弹窗式分享

UIActivityViewController的使用

// 1、设置分享的内容，并将内容添加到数组中
    UIImage *shareImage = [UIImage imageNamed:@"shareImage.png"];
    NSURL *shareUrl = [NSURL URLWithString:@"https://www.jianshu.com/u/e12f189a320d"];
    NSArray *activityItemsArray = @[shareImage,shareUrl];

    // 自定义的CustomActivity，继承自UIActivity
    CustomActivity *customActivity = [[CustomActivity alloc]initWithTitle:@"" ActivityImage:[UIImage imageNamed:@"custom.png"] URL:shareUrl ActivityType:@"Custom"];
    NSArray *activityArray = @[customActivity];

    // 2、初始化控制器，添加分享内容至控制器
    UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:activityItemsArray applicationActivities:activityArray];
    activityVC.modalInPopover = YES;
     NSMutableArray *excludeArray = [@[UIActivityTypeAirDrop,UIActivityTypeMessage,UIActivityTypePrint,UIActivityTypePostToTwitter,UIActivityTypePostToFacebook,UIActivityTypeOpenInIBooks,UIActivityTypePostToVimeo,UIActivityTypePostToFlickr,UIActivityTypeAddToReadingList,UIActivityTypeSaveToCameraRoll,UIActivityTypeAssignToContact,UIActivityTypeCopyToPasteboard,UIActivityTypeMail] mutableCopy];
    activityVC.excludedActivityTypes = excludeArray;
    // 3、设置回调
    if ([UIDevice currentDevice].systemVersion.floatValue >= 8.0) {
        // ios8.0 之后用此方法回调
        UIActivityViewControllerCompletionWithItemsHandler itemsBlock = ^(UIActivityType __nullable activityType, BOOL completed, NSArray * __nullable returnedItems, NSError * __nullable activityError){
            NSLog(@"activityType == %@",activityType);
            if (completed == YES) {
                NSLog(@"completed");
                
            }else{
                NSLog(@"cancel");
            }
        };
        activityVC.completionWithItemsHandler = itemsBlock;
    }else{
        // ios8.0 之前用此方法回调
        UIActivityViewControllerCompletionHandler handlerBlock = ^(UIActivityType __nullable activityType, BOOL completed){
            NSLog(@"activityType == %@",activityType);
            if (completed == YES) {
                NSLog(@"completed");
            }else{
                NSLog(@"cancel");
            }
        };
        activityVC.completionHandler = handlerBlock;
    }
    // 4、调用控制器
    [self presentViewController:activityVC animated:YES completion:nil];

CustomActivity.h

- (instancetype)initWithTitle:(NSString *)title ActivityImage:(UIImage *)activityImage URL:(NSURL *)url ActivityType:(NSString *)activityType;

CustomActivity.m

@interface CustomActivity ()
@property (nonatomic, copy) NSString *title;
@property (nonatomic, copy) NSURL *url;
@property (nonatomic, copy) UIImage *image;
@property (nonatomic, copy) NSString *type;
@end

- (instancetype)initWithTitle:(NSString *)title ActivityImage:(UIImage *)activityImage URL:(NSURL *)url ActivityType:(NSString *)activityType{
    self = [super init];
    if (self) {
        self.title = title;
        self.url = url;
        self.image = activityImage;
        self.type = activityType;
    }
    return self;
}
/**
 决定自定义CustomActivity在UIActivityViewController中显示的位置。
 最上层：AirDrop
 中层：Share，即UIActivityCategoryShare
 中层：Action，即UIActivityCategoryAction
 */
+ (UIActivityCategory)activityCategory{
    return UIActivityCategoryAction;
}

- (NSString *)activityType{
    return _type;
}

- (NSString *)activityTitle {
    return _title;
}
/**
 这个得注意，当self.activityCategory = UIActivityCategoryAction时，系统默认会渲染图片，所以不能重写为 - (UIImage *)activityImage {return _image;}
 */
- (UIImage *)_activityImage {
    return _image;
}

- (NSURL *)activityUrl{
    return _url;
}

- (BOOL)canPerformWithActivityItems:(NSArray *)activityItems {
    return YES;
}
/**
 准备分享所进行的方法，通常在这个方法里面，把item中的东西保存下来,items就是要传输的数据。
 */
- (void)prepareWithActivityItems:(NSArray *)activityItems {

}
/**
  1、这里就可以关联外面的app进行分享操作了
  2、也可以进行一些数据的保存等操作
  3、操作的最后必须使用下面方法告诉系统分享结束了
 */
- (void)performActivity {
    [self activityDidFinish:YES];
}