Hi I'm using the following code to rotate the orientation of the screen programmatically, without rotating the real device.
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortraitUpsideDown animated:NO];
It rotates everything except the status bar. Can you please tell me, how can I rotate everything on the screen programmatically?
Implement this in your viewController
- (BOOL)shouldAutorotate {
return NO;
}
Your root view controller required to answer NO to shouldAutorotate for your app to respond setStatusBarOrientation:animated method.
Related
I want to show one view controller in both orientation in iPhone. And when the screen is opening the preferred orientation should be portrait only. Then according to the device orientation it'll rotate. I found some solution and the screen is rotating too. But when I'm entering the screen it is auto rotating to landscape and than I've to manually rotate it to portrait.
Is there a simple solution to this problem?
You should implement preferredInterfaceOrientationForPresentation and
supportedInterfaceOrientations like:
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIDeviceOrientationPortrait;
}
//You don't actually need to implement this as UIInterfaceOrientationMaskAllButUpsideDown is the default for iPhone
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskAllButUpsideDown;
}
I want to fix the orientation of the keyboard.
My ViewController supports only Portrait.
If I rotate iPhone, the views in the ViewController does not rotate, but the keyboard appears in landscape.
I want to fix the portrait orientation of keyboard even if I rotate ViewController.
- (BOOL)shouldAutorotate
{
return NO;
}
This code does not work. I hear that UIWindow could be related..
Please give me how to solve this problem.
Set in taget-> General Choose portrait only.
I ma trying to lock screen orientation to only landscape orientation when a certain image is still visible, then when the image is hidden, unlock all orientations (targeting iOS 6):
-(BOOL)shouldAutorotate{
if (self.splashImageView.hidden == NO) {
return UIInterfaceOrientationMaskPortrait;//gets called when image is visible
}else{
return UIInterfaceOrientationMaskAll;//gets called when image is hidden
}
}
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
[self shouldAutorotate];
}
As you may notice, shouldAutorotate is called properly but the screen is always supporting landscape orientation even when the image is still visible, is there something missing?
P.S: Please note I am trying to get that to work on a tabbar view controller (a UIViewController subclass).
In your appdelegate you have those two methods.but do you have setting like in your project settings -> go to summary tab and see if orientation is set to only landscape or all.Just try to set those.
My root view controller's implementation of supportedInterfaceOrientations almost always returns UIInterfaceOrientationMaskAll, however there is one edge case where it returns UIInterfaceOrientationMaskLandscape.
This is working, if the user rotates the device. However if the device is being held in portrait mode the supportedInterfaceOrientations method does not ever get called, unless the user manually rotates the device.
How can I programatically tell the system that the return value of this method has changed?
According to the documentation, it seems like I should be able to call [UIViewController attemptRotationToDeviceOrientation] however this does not have any effect (supportedInterfaceOrientations is never called and the screen does not rotate).
I found various workarounds others have posted to try and solve this problem, but none of them work in my tests. I suspect they may have worked in iOS 5.0, but not iOS 6.0.
I am returning YES in the root view controller's shouldAutorotate method.
First of all, it might be useful if you used this if you want to present your UIViewController in Landscape mode.
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIInterfaceOrientationLandscapeLeft | UIInterfaceOrientationLandscapeRight;
}
Also, A lot depends on with which controller is your UIViewController embedded in.
Eg, If its inside UINavigationController, then you might need to subclass that UINavigationController to override orientation methods like this.
subclassed UINavigationController (the top viewcontroller of the hierarchy will take control of the orientation.) needs to be set it as self.window.rootViewController.
- (BOOL)shouldAutorotate
{
return self.topViewController.shouldAutorotate;
}
- (NSUInteger)supportedInterfaceOrientations
{
return self.topViewController.supportedInterfaceOrientations;
}
From iOS 6, it is given that UINavigationController won't ask its UIVIewControllers for orientation support. Hence we would need to subclass it.
Note :
The shouldAutorotate and supportedInterfaceOrientations method always get called for UINavigationController whenever Push operations are done.
Quote from Apple's UIViewController Class Reference:
Note: At launch time, apps should always set up their interface in a portrait orientation. After the application:didFinishLaunchingWithOptions: method returns, the app uses the view controller rotation mechanism described above to rotate the views to the appropriate orientation prior to showing the window.
http://developer.apple.com/library/ios/#documentation/uikit/reference/UIViewController_Class/Reference/Reference.html
If the interface starts in portrait the autorotation should be able to handle the adjustment even if the user opens the app with the device on its side.
Update: I found this post that should help with rotations after launch. Apparently iOS 6 looks at the navigation controller to determine supported device orientations.
How to force a UIViewController to Portrait orientation in iOS 6
You need to manually rotate it. You'll want to call the following logic in your view controller's viewWillAppear: method:
UIDeviceOrientation curDevOrientation = [[UIDevice currentDevice] orientation];
if (![self supportsOrientation:curDevOrientation]) {
// We're going to rotate 90 degrees clockwise. First figure out what that
// means to the status bar.
UIInterfaceOrientation newStatusBarOrientation;
switch (curDevOrientation) {
case UIDeviceOrientationPortrait:
newStatusBarOrientation = UIInterfaceOrientationLandscapeRight;
break;
case UIDeviceOrientationPortraitUpsideDown:
newStatusBarOrientation = UIInterfaceOrientationLandscapeLeft;
break;
}
[[UIApplication sharedApplication] setStatusBarOrientation:newStatusBarOrientation animated:NO];
// Now rotate the view 90 degrees clockwise.
CGAffineTransform transform = CGAffineTransformMakeRotation(M_PI * 90.0 / 180.0);
self.view.transform = transform;
}
That should rotate the particular view controller's view, whenever it appears.
I'm wondering why iPad project based on UITabBarController won't autorotate when i specify some of the tab should autorotate in landscape mode and the other will autorotate in landscape and portrait mode.
i've used the
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
for all the UIViewController and specify if landscape return YES; other wise return NO;
In the other hand, if the UIViewController should rotate in landscape and portrait i've justreturn YES;` always.
Thx in advance.
for all the UIViewController you are loading in tabbarcontroller you must return True in
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
Note:
A tab bar controller will not auto rotate unless ALL the controllers it contains also auto rotate.
from Rotate one UIViewController in UITabBar application -->>
There is no easy way to have only one view in landscape mode, while the others are in landscape, nor an easy way to programmatically switch to landscape mode.
One possible approach would be using a CGAffineTransform to transform your view in your viewWillAppear (i.e., right before the view is shown):
- (void)viewWillAppear:(BOOL)animated; {
//-- Adjust the status bar
[UIApplication sharedApplication].statusBarOrientation = UIInterfaceOrientationLandscapeRight;
//-- Rotate the view
CGAffineTransform toLandscape = CGAffineTransformMakeRotation(degreesToRadian(90));
toLandscape = CGAffineTransformTranslate(toLandscape, +90.0, +90.0 );
[self.view setTransform:toLandscape];
}