MFMailComposeViewController 在横向

Question

我的应用程序处于横向模式。当我通过当前模型 View 调用 MFMailComposeViewController 时，它进入横向模式。我旋转设备并且 MFMailComposeViewController View 进入纵向模式我想限制这种旋转它应该始终只在横向模式中。有什么办法吗..

Answer 1

子类化 MFMailComposeViewController 类，这样您就可以覆盖它的 shouldAutorotateToInterfaceOrientation 以按照您喜欢的方式显示它:

@interface MailCompose : MFMailComposeViewController {
}
@end

@implementation MailCompose

// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}

@end

指定新类代替 MFMailComposeViewController:

MailCompose *controller = [[MailCompose alloc] init];
controller.mailComposeDelegate = self;
[controller setSubject:@"In app email..."];
[controller setMessageBody:@"...email body." isHTML:NO];
[self presentModalViewController:controller animated:YES];
[controller release];