When developing an iPhone app in Xcode, if you have any requirement that only portrait orientation allowed then you can do the following.

Step 1: Open the implementation file for editing.

Step 2. Navigate to shouldAutorotateToInterfaceOrientation method. This methods is auto generated by Xcode while creating the project.

Step 3: replace the return statement with return (interfaceOrientation == UIInterfaceOrientationPortrait);. The update method should be displayed as shown below.

– (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

    return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

This method will return true only when the orientation in Portrait mode.

Step 4: Now navigate to Project Folder on the navigattion bar. In the summary tab under Supported Device Orientations, make sure to un mark the other orientation except portrait.

Portrait Device Orientation

 

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