Iphone 如何从另一个UIImageView中删除UIImageView

在TouchesBegind方法中，我将stampBrush图像添加到drawImage，其中两者都是UIImageView

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

     stampBrush = [[UIImageView alloc] initWithImage:[[PaintColor stampImages] objectAtIndex:[stamp_Default integerForKey:STAMP_TYPE]]];

            [stampBrush setFrame:CGRectMake(lastPoint.x, lastPoint.y, stampBrush.image.size.width,stampBrush.image.size.height)];
            [drawImage addSubview:stampBrush];

}

现在我正试图删除一个一个的removeStampBrush点击！ 需要从drawImage中删除哪个stampBrush

-(void)removeStampBrush:(UIButton *)sender{



}

---

由于您希望按相反的顺序删除戳记，因此我将扩展UIImageView，如下所示：

YourImageView.h

@interface YourImageView : UIImageView {
    NSMutableArray *stamps;
}

- (void)addStamp:(UIImageView *)stamp;
- (void)removeLastStamp;

@end

YourImageView.m

#import "YourImageView.h"

@implementation YourImageView

-(void)dealloc {
    [stamps release];

    [super dealloc];
}


- (void)addStamp:(UIImageView *)stamp {
    if (stamps == nil) {
        stamps = [[NSMutableArray array] retain];
    }

    [stamps addObject:stamp];
    [self addSubview:stamp];
}

- (void)removeLastStamp {
    if (stamps.count > 0) {
        UIImageView *stamp = [stamps lastObject];
        [stamp removeFromSuperview];

        [stamps removeLastObject];
    }
}

@end

---

现在，从您的触摸事件调用

[drawImage addStamp:stampBrush]

中删除最后一个

[drawImage removeLastStamp]

是否真的需要检查“if”？如果[stampBrush superView]为零怎么办？我想我们可以调用[stampBrush removeFromSuperView]，它不应该给出任何错误@萨阿德！我在使用[stampBrush removeFromSuperView]时添加了三个图像；添加到drawImage的最后一个图像在我再次单击时被删除，无法删除！即使我检查条件，如果没有它带来同样的结果！您如何知道要删除哪一个stampBrush？或者你总是想按你添加它们的相反顺序删除它们吗？@iTuker是的，我想按相反顺序删除它们！

#import "YourImageView.h"

@implementation YourImageView

-(void)dealloc {
    [stamps release];

    [super dealloc];
}


- (void)addStamp:(UIImageView *)stamp {
    if (stamps == nil) {
        stamps = [[NSMutableArray array] retain];
    }

    [stamps addObject:stamp];
    [self addSubview:stamp];
}

- (void)removeLastStamp {
    if (stamps.count > 0) {
        UIImageView *stamp = [stamps lastObject];
        [stamp removeFromSuperview];

        [stamps removeLastObject];
    }
}

@end