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iPhone SDK：检测被点击的视图

发布于 2024-10-18 14:39:28 字数 112 浏览 5 评论 0原文

在我的应用程序中，我有很多小的 UIImageView 和侧面的视图。我需要的是侧面的视图，以便能够检测到哪个图像视图被点击，并为我提供有关它的所有信息（很像 (id)sender）及其坐标。最好的方法是什么？

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仅此而已 2024-10-25 14:39:29

这是我的项目的内部类。我想你明白了。
作为一个选项，您可以为所有者（或委托人）创建协议。
获取坐标：

-[UITouch locationInView: someView]

您可以使用以下代码

@interface _FaceSelectView : UIImageView {
@protected
    VIFaceSelectVC* _owner;
}
-(id) initWithOwner:(FaceSelectVC*) owner;
@end

@implementation _FaceSelectView

-(id) initWithOwner:(FaceSelectVC*) owner {
    if( self = [super init] ) {
        _owner = owner;
        self.userInteractionEnabled = YES;
    }

    return self;
}

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [_owner _touchesBeganIn: self withTouch: (UITouch*)[touches anyObject]];
}

-(void) touchesEnded:(NSSet*) touches withEvent:(UIEvent*) event {
    [_owner _touchesEndedIn: self withTouch: (UITouch*)[touches anyObject]];
}

-(void) touchesMoved:(NSSet*) touches withEvent:(UIEvent*) event {
    [_owner _touchesMovedIn: self withTouch: (UITouch*)[touches anyObject]];
}

@end

This is the internal class from my project. I think you get the idea.
As an option you can create protocol for the owner (or delegate).
You can obtain coords using

-[UITouch locationInView: someView]

Here is the code:

@interface _FaceSelectView : UIImageView {
@protected
    VIFaceSelectVC* _owner;
}
-(id) initWithOwner:(FaceSelectVC*) owner;
@end

@implementation _FaceSelectView

-(id) initWithOwner:(FaceSelectVC*) owner {
    if( self = [super init] ) {
        _owner = owner;
        self.userInteractionEnabled = YES;
    }

    return self;
}

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [_owner _touchesBeganIn: self withTouch: (UITouch*)[touches anyObject]];
}

-(void) touchesEnded:(NSSet*) touches withEvent:(UIEvent*) event {
    [_owner _touchesEndedIn: self withTouch: (UITouch*)[touches anyObject]];
}

-(void) touchesMoved:(NSSet*) touches withEvent:(UIEvent*) event {
    [_owner _touchesMovedIn: self withTouch: (UITouch*)[touches anyObject]];
}

@end

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