Create animation of a UIImageView between two contentMode ( UIViewContentModeScaleAspectFill / UIViewContentModeScaleAspectFit )
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Use Pod (or download and add "UIImageViewModeScaleAspect.h" and "UIImageViewModeScaleAspect.m" in your xcodeprojet.) :
pod 'UIImageViewModeScaleAspect'Import the .h file :
``` objective-c #import "UIImageViewModeScaleAspect.h" ```Init the UIImageViewModeScaleAspect. Important ! Do not forget to init the contentMode :
``` objective-c UIImageViewModeScaleAspect *myImage = [[UIImageViewModeScaleAspect alloc]initWithFrame:CGRectMake(0, 100, 200, 100)]; myImage.contentMode = UIViewContentModeScaleAspectFill; // Add the first contentMode myImage.image = [UIImage imageNamed:@"becomeapanda_tumblr_com"]; [self.view addSubview:myImage]; ```For convert UIViewContentModeScaleAspectFill to UIViewContentModeScaleAspectFit :
``` objective-c [myImage animateToScaleAspectFitToFrame:CGRectMake(0, 0, 200, 200) WithDuration:0.4f afterDelay:0.0f]; ```For convert UIViewContentModeScaleAspectFit to UIViewContentModeScaleAspectFill :
``` objective-c [myImage animateToScaleAspectFillToFrame:CGRectMake(0, 0, 200, 200) WithDuration:0.4f afterDelay:0.0f]; ```For convert UIViewContentModeScaleAspectFill to UIViewContentModeScaleAspectFit :
``` objective-c [myImage initToScaleAspectFillToFrame:CGRectMake(0, 100, 200, 100)];[UIView animateWithDuration:0.4f delay:0.0f options:UIViewAnimationOptionAllowUserInteraction animations:^{// // Others Animation // [myImage animaticToScaleAspectFill]; // // Others Animation // } completion:^(BOOL finished){[myImage animateFinishToScaleAspectFill]}];
<p>For convert UIViewContentModeScaleAspectFit to UIViewContentModeScaleAspectFill :</p> ``` objective-c [myImage initToScaleAspectFitToFrame:CGRectMake(0, 0, 200, 200)]; [UIView animateWithDuration:0.4f delay:0.0f options:UIViewAnimationOptionAllowUserInteraction animations:^{// // Others Animation // [myImage animaticToScaleAspectFit]; // // Others Animation // } completion:^(BOOL finished){[myImage animateFinishToScaleAspectFit]}];