UIActivityViewController没有在gmail中显示正文

我正在使用uiactivityviewcontroller来显示共享选项。 除非用户选择Gmail共享选项，否则一切正常。 如果用户选择电子邮件，则会正确显示内容。 但如果我选择gmail，那么正文中就不会显示任何内容。

这是代码：

NSString *str = [NSString stringWithFormat:@"%@",@"Check the application"]; NSArray* dataToShare = @[str]; // ...or whatever pieces of data you want to share. UIActivityViewController* activityViewController = [[UIActivityViewController alloc] initWithActivityItems:dataToShare applicationActivities:nil]; [activityViewController setValue:@"Check it out" forKey:@"subject"]; if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"8.0")) { activityViewController.popoverPresentationController.sourceView = self.view; activityViewController.popoverPresentationController.sourceRect = CGRectMake(0,self.view.frame.size.height, self.view.frame.size.width, 400); } [self presentViewController:activityViewController animated:YES completion:nil]; [activityViewController setCompletionHandler:^(NSString *activityType, BOOL completed) { if(completed){ } }]; } - (NSString *)activityViewController:(UIActivityViewController *)activityViewController subjectForActivityType:(NSString *)activityType{ return @"Check it out"; } 

Answer 1

您可以使用URL方案Gmail创建UIActivity的子类：

下面的代码提取了这个答案： https ： //stackoverflow.com/a/12766330/3726577

 //ActivityViewCustomActivity.h @interface ActivityViewCustomActivity : UIActivity @end //ActivityViewCustomActivity.m @implementation ActivityViewCustomActivity - (NSString *)activityType { return @"googlegmail"; } - (NSString *)activityTitle { return @"Gmail"; } - (UIImage *)activityImage { // Note: These images need to have a transparent background and I recommend these sizes: // iPadShare@2x should be 126 px, iPadShare should be 53 px, iPhoneShare@2x should be 100 // px, and iPhoneShare should be 50 px. I found these sizes to work for what I was making. if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) { return [UIImage imageNamed:@"iPadShare.png"]; } else { return [UIImage imageNamed:@"iPhoneShare.png"]; } } - (BOOL)canPerformWithActivityItems:(NSArray *)activityItems { NSLog(@"%s", __FUNCTION__); return YES; } - (void)prepareWithActivityItems:(NSArray *)activityItems { NSLog(@"%s",__FUNCTION__); } - (UIViewController *)activityViewController { NSLog(@"%s",__FUNCTION__); return nil; } - (void)performActivity { NSString *email = @"googlegmail:///co?subject=Check it out&body=Check the application"; email = [email stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:email]]; [self activityDidFinish:YES]; } 

---

 @implementation ViewController2 - (void)viewDidLoad{ [super viewDidLoad]; NSString *textItem = @"Check the application"; ActivityViewCustomActivity * ca = [ActivityViewCustomActivity new]; UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:@[textItem] applicationActivities:[NSArray arrayWithObject:ca]]; activityVC.excludedActivityTypes = @[UIActivityTypePostToWeibo, UIActivityTypeAssignToContact, UIActivityTypePrint, UIActivityTypeCopyToPasteboard, UIActivityTypeSaveToCameraRoll]; [activityVC setValue:@"Check it out" forKey:@"subject"]; activityVC.completionHandler = ^(NSString *activityType, BOOL completed) { NSLog(@" activityType: %@", activityType); NSLog(@" completed: %i", completed); }; [self presentViewController:activityVC animated:YES completion:nil]; } 

查看更多： http ： //www.macstories.net/links/gmail-for-ios-url-scheme/

Answer 2

好像Gmail共享扩展程序中存在错误。 请检查您的url是否有＆，传递和字符使邮件主题和正文空白。 您可以使用＆而不是。

PS：我没有检查其他特殊字符。

Answer 3

在Swift 3和iOS 9+中有点棘手。

首先，您需要将googlegmail添加到Info.plist中的LSApplicationQueriesSchemes

其次，这是我的UIActivity子类的样子：

在Swift 3和iOS 9+中有点棘手。

首先，您需要将googlegmail添加到Info.plist中的LSApplicationQueriesSchemes

其次，这是我的UIActivity子类的样子：

 final class GmailNewEmailShareActivity: UIActivity { private let urlScheme = "googlegmail:" private var activityItems: [Any]? = nil override class var activityCategory: UIActivityCategory { return .share } override var activityType: UIActivityType? { return UIActivityType(rawValue: "googlemail") } override var activityTitle: String? { return "Gmail" } override var activityViewController: UIViewController? { return nil } override func canPerform(withActivityItems activityItems: [Any]) -> Bool { guard let url = URL(string: urlScheme) else { return false } return UIApplication.shared.canOpenURL(url) } override func prepare(withActivityItems activityItems: [Any]) { // At this point I store incoming activity items to use them later in `perform()` self.activityItems = activityItems } override var activityImage: UIImage? { // 60x60, 120x120 and 180x180 return nil } override func perform() { guard let body = activityItems?.first as? String, let encodedBody = body.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) else { activityDidFinish(false) return } let urlString = "\(urlScheme)///co?body=\(encodedBody)" guard let url = URL(string: urlString) else { activityDidFinish(false) return } UIApplication.shared.openURL(url) activityDidFinish(true) } }