如何比较iOS 8中的两个UIImage [英] How to compare two UIImage in iOS 8

问题描述

我使用下面给出的方法

IBOutlet UIImageView * imgViewCheck;

IBOutlet UIImageView *imgViewCheck;

- (IBAction)clkCheckUncheck:(id)sender {
    if (imgViewCheck.image == [UIImage imageNamed:@"uncheck.png"]) {
        imgViewCheck.image = [UIImage imageNamed:@"check.png"];
    } else {
        imgViewCheck.image = [UIImage imageNamed:@"uncheck.png"];
    }
}

它适用于iOS7但不工作iOS8

It is working in up to iOS7 but not working in iOS8

推荐答案

请比较NSData对象而不是比较UIImage对象。

Please compare NSData object instead of comparing UIImage Object.

-(BOOL)firstimage:(UIImage *)image1 isEqualTo:(UIImage *)image2 {
    NSData *data1 = UIImagePNGRepresentation(image1);
    NSData *data2 = UIImagePNGRepresentation(image2);

    return [data1 isEqualToData:data2];
}

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