UIImagePickerController record video with landscape orientation

Question

How can we force UIImagePickerController controller to record video only in landscape mode?

I know that this class should be used for portrait recording, but I need to have it in landscape.

Have found several similar questions but there is not any solution which works for me (iOS 6.1).

For example observation of device orientation doesn't work for me (this answer- https://stackoverflow.com/a/2147584/775779)

If I implement UIImagePickerController category like the following:

#import "UIImagePickerController+NonRotating.h"

@implementation UIImagePickerController (NonRotating)

- (BOOL)shouldAutorotate
{

    return YES;
}

-(NSUInteger)supportedInterfaceOrientations

{
    return UIInterfaceOrientationMaskLandscape;

}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationLandscapeRight;
}

@end

it almost works, but I see some strange behavior of some controls and wrong video orientation during recording (the result video is ok).

1) Start. Cancel and recording button in the right positions, but other controls in wrong. And video is rotated. enter image description here

2) Recording. Timer and video are wrong. enter image description here

3) Recording finished. all good! and the result video is right.

enter image description here

do you have any ideas?

UPDATE I need to lock the screen in Landscape orientation during the recording process.

please don't close this question. the question which you gave a link doesn't have the right answer and all solutions from that comments don't work. — Dmitry Khryukin, Mar 19 '13 at 04:25
@iPatel have you read my question? I already told about this link. — Dmitry Khryukin, Mar 19 '13 at 20:17
have you tried setting the video orientation? http://stackoverflow.com/questions/14811641/ios-camera-orientation#14812010 — Gotschi, Mar 20 '13 at 12:21
@Gotschi no, have not tried. I don't use AVCaptureConnection, I use UIImagePickerController — Dmitry Khryukin, Mar 26 '13 at 20:12

score 3 · Answer 1 · edited Jan 19 '15 at 07:23

You need to implement a custom UIImagePickerController. For that, you'll need to set imagepicker's property showsCameraControls to FALSE.

self.mImagePickerController.showsCameraControls = NO;
self.mImagePickerController.wantsFullScreenLayout = YES;

Once you do this, no default controls will be visible to you. You'll need to setup custom buttons for start/stop recording and flipping camera etc.

Now, you can use the start/stop methods to record a video:

When one clicks on start recording,

[self.mImagePickerController startVideoCapture];

To stop,

[self.mImagePickerController stopVideoCapture];

To keep track of the switching between the camera, you can use a flag

if (self.mImagePickerController.cameraDevice == UIImagePickerControllerCameraDeviceRear)
    {
        self.mImagePickerController.cameraDevice = UIImagePickerControllerCameraDeviceFront;
        isFrontCamera = YES;
    }
    else
    {
        self.mImagePickerController.cameraDevice = UIImagePickerControllerCameraDeviceRear;
        isFrontCamera = NO;
    }

You can set the controls as you wish on the orientation change. AppDelegate.m

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window

This is the delegate that gets called on orientation change. You can use the particular class's object to call its shouldAutorotate method and setup your camera control positions according to the orientation.

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    [self.objController shouldAutorotate];
    return UIInterfaceOrientationMaskAll;
}

Now inside cameraviewcontroller.m

-(BOOL)shouldAutorotate
{
    UIInterfaceOrientation interfaceOrientation = [[UIDevice currentDevice]orientation];

    if(interfaceOrientation == UIInterfaceOrientationPortrait)
    {
        // your controls setup
    }
    else
    {
        // view accordingly for landscape 
    }
}

I have tried to cover all the points. Let me know if you have any confusion. Hope it helps :)

1) You need to check the condition on click event of the flip camera button.

2) AppDelegate.h: Declare an object of your class where you record your video and create a property. Here I'm using CameraViewController as an example.

CameraViewController *objController;

Now in AppDelegate.m:

self.objController = [[CameraViewController alloc]initWithNibName:@"CameraViewController" bundle:nil];

Now use this instance to call the shouldAutorotate method as I have shown above. And return landscape orientation:

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    if(isOptionScreenActive == YES)
    {
        [self.shareController shouldAutorotate];
        return UIInterfaceOrientationMaskLandscape;
    }
    else
    {
        [self.anotherController shouldAutorotate];
        return UIInterfaceOrientationMaskPortrait;
    }
}

Here isOptionScreenActive is a flag that is set in the viewWillAppear of the recording class. Set it false in viewDidUnload. Or may be viewWillAppear of another class.

3) I have used cameraviewcontroller.m just as an example. It reflects your recording class. Also in your video recording class's shouldAutorotate method, if the detected orientation is portrait, just return NO. This way the UI wont change and you can keep the UI in landscape only.

thanks for the comment. several questions before I try to implement this: 1) "To keep track of the switching between the camera, you can use a flag" - can't figure out where this code should be. 2) "This is the delegate that gets called on orientation change. You can use the particular class's object to call its shouldAutorotate method and setup your camera control positions according to the orientation. " - "self.objController" - what is this? I have just one screen where I record video. It should be landscape. Others are in portrait orientation. 3) cameraviewcontroller.m - what is this? — Dmitry Khryukin, Mar 26 '13 at 00:45
and I see that with your solution it will support both orientations. just with custom controls. I need to make it work *only* in landscape orientation. to lock it. — Dmitry Khryukin, Mar 26 '13 at 00:47
I have updated the answer to accomodate your queries. See if it helps. — Maverick, Mar 26 '13 at 10:18
thanks for the help. I'll award you the bounty, because your answer is the best one. but I can't check it now, so I can't accept it. I'll check it later and maybe will ask some additional questions. — Dmitry Khryukin, Mar 27 '13 at 00:26
@Maverick hey, I was wondering does setting `picker.showsCameraControls = NO;` remove the auto focus function? — iqueqiorio, Apr 16 '15 at 01:43

score 0 · Answer 2 · answered Mar 21 '13 at 04:52

0

try this on may it w'll help you

- (BOOL)shouldAutorotate
{
return NO;
}

-(NSUInteger)supportedInterfaceOrientations
{
 return UIInterfaceOrientationLandscapeRight | UIInterfaceOrientationLandscapeLeft;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIInterfaceOrientationLandscapeRight;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:    (UIInterfaceOrientation)interfaceOrientation
{
  return (interfaceOrientation == UIInterfaceOrientationLandscapeRight ||       interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}

it w'lll work...:)

answered Mar 21 '13 at 04:52

Kalyani

392
2
17

thanks for the comment. have tried it out, but have got an exception: *** Terminating app due to uncaught exception 'UIApplicationInvalidInterfaceOrientation', reason: 'preferredInterfaceOrientationForPresentation must return a supported interface orientation!' – Dmitry Khryukin Mar 21 '13 at 20:16
It will work if we add - (NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskLandscape; } instead of -(NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationLandscapeRight | UIInterfaceOrientationLandscapeLeft; } – Naveen Shan Oct 10 '13 at 07:51

UIImagePickerController record video with landscape orientation

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