Question

在接触Began方法中,我添加了邮票刷图像到绘图中, 两者均为 UIImaageView

- (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];

}

Now i am trying to remove one by one on removeStampBrush clicked! which stampBrush need to remove from drawImage!

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



}

Answer 1

既然你想取消邮票的反序,我将延长UIIMGEView如下:

您的图像查看。 h。

@interface YourImageView : UIImageView {
    NSMutableArray *stamps;
}

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

@end

您的图像查看 : m

#import "您的图像查看。 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 [拖动图像添加Stamp:stampBrush] 并删除最后一个 [拖动图像删除LastStamp]

Answer 2

if([stampBrush superView])
{
    [stampBrush removeFromSuperView];
}

友情链接