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";
}
解决方法
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/
