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      UIImage *supermanImage = [UIImage imageNamed:@"superman.png"];
        UIImage *moneyImage = [UIImage imageNamed:@"money.png"];
        
        CGSize supermanSize = [supermanImage size];
        CGSize moneySize = [moneyImage size];
        
    //    NSLog(@"s : %f,%f 
     m : %f,%f", supermanSize.width, supermanSize.height, moneySize.width, moneySize.height);
        
        UIGraphicsBeginImageContext(supermanSize);
        
        [supermanImage drawInRect:CGRectMake(0, 0, supermanSize.width, supermanSize.height)];
        [moneyImage drawInRect:CGRectMake(0, 0, moneySize.width, moneySize.height)];
        
        UIImage *mergeImage = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext();
        
        mergeImageView = [[UIImageView alloc] init];
        mergeImageView.image = mergeImage;
        mergeImageView.frame = self.view.bounds;
        [self.view addSubview:mergeImageView];
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  • 原文地址:https://www.cnblogs.com/yuwei0911/p/5690979.html
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