我想知道视图何时出现的设备方向。以前可以使用该shouldAutorotateToInterfaceOrientation
方法,但在 IOS 6 中已弃用。
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
if (interfaceOrientation==UIInterfaceOrientationPortrait ||interfaceOrientation==UIInterfaceOrientationPortraitUpsideDown ) {
DashBtn.hidden=NO;
}
else
{
DashBtn.hidden=YES;
if (self.popoverControllerMain) {
[self.popoverControllerMain dismissPopoverAnimated:YES];
}
}
return YES;
}
我检查了所有的帖子,即制作 rootviewcontroller 和
- (BOOL)shouldAutorotate {
return NO;
}// this method is not called
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskPortrait;
}