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POImage Changer in iOS
 

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  1. POImage Changer in iOS
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    <p>I'm trying to get my app to do a basic background change from 3 screens. Here is my .h file.</p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @class BIDYellowViewController; @class BIDBlueViewController; @class BIDGreenViewController; @interface BIDSwitchViewController : UIViewController @property (strong, nonatomic) BIDYellowViewController *yellowViewController; @property (strong, nonatomic) BIDBlueViewController *blueViewController; @property (strong, nonatomic) BIDGreenViewController *greenViewController; - (IBAction)switchViews:(id)sender; @end </code></pre> <p>and here is my method in the .m file that when the IBAction button is pressed, the superview will go from one screen to the next and continue in the loop of rotating them.</p> <pre><code>- (IBAction)switchViews:(id)sender { //animations [UIView beginAnimations:@"View Flip" context:nil]; [UIView setAnimationDuration:1.25]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; //loads yellow if (self.yellowViewController.view.superview == nil) { if (self.yellowViewController == nil) { self.yellowViewController = [[BIDYellowViewController alloc]initWithNibName:@"YellowView" bundle:nil]; } [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES]; //removes blue [self.blueViewController.view removeFromSuperview]; [self.view insertSubview:self.yellowViewController.view atIndex:0]; //loads green } else if(self.greenViewController.view.superview == nil){ if (self.greenViewController == nil) { self.greenViewController = [[BIDGreenViewController alloc] initWithNibName:@"GreenView" bundle:nil]; } [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES]; //removes yellow [self.yellowViewController.view removeFromSuperview]; [self.view insertSubview:self.greenViewController.view atIndex:0]; //loads blue } else if(self.blueViewController.view.superview == nil){ if (self.blueViewController == nil) { self.blueViewController = [[BIDBlueViewController alloc] initWithNibName:@"BlueView" bundle:nil]; } [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES]; //removes green [self.greenViewController.view removeFromSuperview]; [self.view insertSubview:self.blueViewController.view atIndex:0]; } [UIView commitAnimations]; } </code></pre> <p>the problem I'm having is that on the first loop, it repeats green screen twice and then continues on and works properly. Am I missing something or should I be using a switch: case statement( and if so how would I do that)?</p>
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    1. USuser1118321
    1. USjsollo2
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    1. COIf you have viewControllers then why you are using addSubView?.Or simple use UIView no need to use three viewControllers
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      1. POImage Changer in iOS
      1. USWarewolf
    2. COyou means you want to repeat it?Or stop repeating it
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      1. POImage Changer in iOS
      1. USWarewolf
    3. COI need it to repeat. When the button is pressed it rotates to 'yellow'; press it again and it rotates to green; press it again and it rotates to blue; press again it rotates to yellow,....and so on and so on....I'm quite new to iOS/Xcode and am not sure where to plug in your suggestions? I need to have it set to that each color has a .h and .m file which I've already created. Does some of your suggestions go in those files? Any more detailed help would be appreciated.
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      1. POImage Changer in iOS
      1. USjsollo2
 

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