mac 开发 使用NSImageView实现多张图片动画

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Paste_Image.png

//
//  ViewController.m
//  mac_animation_Test
//
//  Created by Eric luo's Macbook Pro on 2017/6/7.
//  Copyright © 2017年 Eric luo‘s Macbook Pro. All rights reserved.
//

#import "ViewController.h"
#import <QuartzCore/QuartzCore.h>

static NSString *kAnimationKey = @"contents";

@interface ViewController ()
@property (nonatomic, strong) NSImageView *imageView;
@end

@implementation ViewController

- (NSImageView *)imageView {
    if (!_imageView) {
        _imageView = [[NSImageView alloc] initWithFrame:CGRectMake(0, 0, 130, 130)];
    }
    return _imageView;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self.view addSubview:self.imageView];
    
    NSMutableArray *icons = [NSMutableArray arrayWithCapacity:5];
    for (int i = 0; i < 5; i++) {
        NSString *imageName = [NSString stringWithFormat:@"ship-anim%d", i];
        NSImage *image = [NSImage imageNamed:imageName];
        [icons addObject:image];
    }
    
    
    CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:kAnimationKey];
    [animation setCalculationMode:kCAAnimationDiscrete];
    [animation setDuration:1.0f];
    [animation setRepeatCount:HUGE_VALF];
    [animation setValues:icons];
    
    CALayer *layer = [CALayer layer];
    layer.frame = self.imageView.bounds;
    layer.bounds = self.imageView.bounds;
    [layer addAnimation:animation forKey:kAnimationKey];
    
    [self.imageView setLayer:layer];
    [self.imageView setWantsLayer:YES];
}

- (void)setRepresentedObject:(id)representedObject {
    [super setRepresentedObject:representedObject];

    // Update the view, if already loaded.
}


@end