CODEWITHSUNDEEP
iosobjective-ciphoneuivieworientation
Jessica
Jessica

Reputation: 9830

Change UIViews position when iPhone orientation changes

I'm trying to change the position of UIViews when the iPhone's orientation is changed. It's similar to this question; but instead of 3 views, I'll be having 2 views. When the iPhone is in portrait mode, I want the views to be one on top of the other. When in landscape mode, they should be side by side.

So I tried the following method:

willAnimateRotationToInterfaceOrientation:duration:

But that method is deprecated. What can I do to check when the iPhone's orientation changed?

Update

I tried the following: Thanks to @Sean for the guidance!!

- (void)viewDidLayoutSubviews
{
    [super viewDidLayoutSubviews];
    self.tableView.frame = CGRectMake(0, 0, 100, 200); // This Works
}

- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
    [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];

    CGFloat viewWidth = self.view.frame.size.width;
    CGFloat viewHeight = self.view.frame.size.height;


    if (size.width >= size.height)
    {
        self.containerView.frame = CGRectMake(0, 0, viewWidth, 272);
        self.tableView.frame = CGRectMake(self.containerView.frame.size.height, 0, viewWidth, viewHeight - self.containerView.frame.size.height);
        NSLog(@"Portrait Mode");  // Get the NSLog, but frames don't change
    }
    else
    {
        self.containerView.frame = CGRectMake(0, 0, viewWidth / 2, viewHeight);
        self.tableView.frame = CGRectMake(viewWidth / 2, 0, viewHeight / 2, viewHeight);
        NSLog(@"Landscape Mode");  // Get the NSLog, but frames don't change
    }
}

So when I change the frames in viewDidLayoutSubviews, it works. But when I try changing them in viewWillTransition... it doesn't change, but I get the NSLogs.

Upvotes: 2

Views: 1919

Answers (2)

Sean
Sean

Reputation: 2116

Apple recommends using the following method:

- (void)viewWillTransitionToSize:(CGSize)size
   withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator

Example: 

- (void)viewWillTransitionToSize:(CGSize)size
   withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
    [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];

    if (size.width >= size.height) {
        // Landscape frames
        self.subviewA.frame = CGRectMake(x, y, width, height);
        self.subviewB.frame = CGRectMake(x, y, width, height);
    } else {
        // Portrait frames
        self.subviewA.frame = CGRectMake(x, y, width, height);
        self.subviewB.frame = CGRectMake(x, y, width, height);
    }
}

Make sure you call the super class method as shown above when implementing this solution.

Upvotes: 2

Teja Nandamuri
Teja Nandamuri

Reputation: 11201

You can check the device orientation by using the following code:

UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;

 if(orientation == 0) //Default orientation 
//UI is in Default (Portrait) -- this is really a just a failsafe. 

 else if(orientation == UIInterfaceOrientationPortrait)
//Do something if the orientation is in Portrait

 else if(orientation == UIInterfaceOrientationLandscapeLeft)
// Do something if Left

 else if(orientation == UIInterfaceOrientationLandscapeRight)
//Do something if right

You can create two separate views according to your need and present them based on the device orientation.

Upvotes: 0

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