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[英]MFMailComposeViewController didFinishWithResult not being called
[英]MFMailComposeViewController didFinishWithResult issue when the keyboard appears
我已经有了MFMailComposeViewController的标准实现。
我已经设置了正确的委托协议,并且在didFinishWithResult方法上发生了日志。
看到:
mailComposer = [[MFMailComposeViewController alloc] init];
[mailComposer setSubject:emailTitle];
[mailComposer setMessageBody:messageBody isHTML:YES];
mailComposer.mailComposeDelegate = self;
[[self getController] presentViewController:mailComposer animated:YES completion:NULL];
- (void) mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
NSLog(@"mail dismiss");
[[self getController] dismissViewControllerAnimated:YES completion:NULL];
}
这说明邮件编辑器正常运行,并且一切正常。 意思是,如果我按下“取消”按钮,则didFinishWithResult方法将被调用,而mailComposer将会被关闭。
但是,如果我尝试键入任何内容,例如TO:电子邮件地址或邮件编辑器本身中的任何其他内容, 则感觉键盘出现正在删除我的视图控制器的委托操作,因为“取消”和“发送”按钮不会触发任何操作 。
有什么想法吗? 这让我疯狂 :/
干杯
编辑
这是getController的代码:
- (UIViewController *) getController
{
Class vcc = [UIViewController class];
UIResponder *responder = self;
while ((responder = [responder nextResponder]))
if ([responder isKindOfClass: vcc])
return (UIViewController *)responder;
return nil;
}
当UITextField成为FirstResponder时,控制器将收到resignFirstResponder。
为什么使用方法“ getController”? 在提供MFMailComposeViewController的ViewController上创建属性。
设置一个开关来捕获来自邮件编写器的结果,如下所示:
-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
switch (result) {
case MFMailComposeResultCancelled:
// User tapped cancel button
break;
case MFMailComposeResultSaved:
// User saved email
break;
case MFMailComposeResultSent:
// User sent email
break;
case MFMailComposeResultFailed:
break;
default:
break;
}
[self dismissViewControllerAnimated:YES completion:NULL];
}
我建议此实现:
- (void) presentMailViewController
if([MFMailComposeViewController canSendMail])
{
MFMailComposeViewController *mail = [MFMailComposeViewController new];
mail.mailComposeDelegate = self;
mail.navigationBar.tintColor = self.navigationController.navigationBar.tintColor;;
[self.navigationController presentViewController:mail animated:YES completion:nil];
}
}
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
if(error)
{
//...
}
[self dismissViewControllerAnimated:YES completion:nil];
}
我建议您阅读此页面: 代码命名基础
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