[ObjC][Sample]UIViewアニメーションでフェードイン/フェードアウト

UIView+FadeAnimation.h

#import <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>

@interface UIView (FadeAnimation)

- (void)fadeIn;
- (void)fadeOut;
@end

UIView+FadeAnimation.m

#import "UIView+FadeAnimation.h"

@implementation UIView (FadeAnimation)

- (void)fadeIn
{
    self.alpha = 0;
    CGRect tempFrame = self.frame;
    self.frame = CGRectOffset(self.frame, 0, 10);
    [UIView beginAnimations:@"fadeIn" context:nil];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView setAnimationDuration:1.0];
    self.alpha = 1;
    self.frame = tempFrame;
    [UIView commitAnimations];
}

- (void)fadeOut
{
    [UIView beginAnimations:@"fadeOut" context:nil];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
    [UIView setAnimationDuration:0.8];
    self.frame = CGRectOffset(self.frame, 0, 5);
    self.alpha = 0;
    [UIView commitAnimations];
}


@end