离线时MFMessageComposer灰色

Question

我的应用程序允许用户通过iMe​​ssenger发送短信。问题是，对于第一个消息，它工作正常，但是控制器为空且呈灰色，并且当他们发送第二条消息时，没有取消按钮。仅当他们没有互联网时，才会发生这种情况。当他们有互联网时，它发送的很好。如果没有互联网，是否可以“存储” iMessage并允许将多个消息添加到同一号码？

-(void)textbuttoniphone:(UIButton *)sender
{
     NSLog(@"TEXT 6");

 dispatch_async(dispatch_get_main_queue(), ^{
MFMessageComposeViewController *composeVC = [[MFMessageComposeViewController alloc] init];
composeVC.messageComposeDelegate = self;
NSString * textmessage = self.record.textmessage;
NSString * savedValue = self.shareModeOverlayView.textingfield.text;
NSLog (@"SAVED VALUE: %@", savedValue);

if (![MFMessageComposeViewController canSendText])

{
    NSLog(@"NO CAN'T SEND");
    [nonpressTimer invalidate];
    nonpressTimer = [NSTimer scheduledTimerWithTimeInterval:25.0 target:self 
    selector:@selector(timeout) userInfo:nil repeats:NO];

}

else
{

    NSArray * usersTo = [NSArray arrayWithObject:[NSString stringWithFormat:@"%@", savedValue]];
    [composeVC setRecipients:usersTo];
    [composeVC setBody: textmessage];
    [self presentViewController:composeVC animated:YES completion:nil];

}


}

然后在发送时我有这个。

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller

             didFinishWithResult:(MessageComposeResult)result

{

if (result == MessageComposeResultSent) {
    NSLog(@"Sent");
[controller dismissViewControllerAnimated:YES completion:nil];
myview.hidden = YES;

}

 else if (result == MessageComposeResultCancelled) {
[controller dismissViewControllerAnimated:YES completion:nil];
myview.hidden = NO;


}   


}