UIActivityViewController

- (void)shareWithFilePath:(NSString *)filePath{
    NSURL * url = [NSURL fileURLWithPath:filePath];
    NSArray * arr = @[url,@"introduce"];
    UIActivityViewController *activityVc = [[UIActivityViewController alloc] initWithActivityItems:arr applicationActivities:nil];
    [self presentViewController:activityVc animated:YES completion:nil];
    activityVc.completionWithItemsHandler = ^(UIActivityType _Nullable activityType, BOOL completed, NSArray * _Nullable returnedItems, NSError * _Nullable activityError) {
    };
}