如何使一个superview截取按钮触摸事件？ [英] How to make a superview intercept button touch events?

问题描述

说我有这个代码：

#import <UIKit/UIKit.h>

@interface MyView : UIView
@end
@implementation MyView

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    // How can I get this to show up even when the button is touched?
    NSLog(@"%@", [touches anyObject]);
}

@end

@interface TestViewAppDelegate : NSObject <UIApplicationDelegate>
{
    UIWindow *window;
}

@end

@implementation TestViewAppDelegate

- (void)applicationDidFinishLaunching:(UIApplication *)application
{
    window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    MyView *view = [[MyView alloc] initWithFrame:[window frame]];
    [view setBackgroundColor:[UIColor whiteColor]];

    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [button setTitle:@"Hiya!" forState:UIControlStateNormal];
    [button setFrame:CGRectMake(100.0, 100.0, 200.0, 200.0)];
    [view addSubview:button];

    [window addSubview:view];
    [window makeKeyAndVisible];
}


- (void)dealloc
{
    [window release];
    [super dealloc];
}

@end

触摸事件发送到按钮？我最后想做的是做一个UIView子类，它会告诉它的视图控制器（或代理，无论哪一个），当它检测到一个滑动，所以它可以推下一个视图控制器到堆栈（类似于iPhone主屏幕）。

Is there any way to intercept the touch events getting sent to the button? What I'd like to eventually do is make a UIView subclass that will tell its view controller (or delegate, whichever) when it detects a swipe so it can "push" the next view controller onto the stack (similar to the iPhone home screen). I figured this was the first step, but I'm open to suggestions if I'm approaching this incorrectly.

推荐答案

感谢您的支持。建议和资料性答复。我最后只是使用此页面上显示的说明:(在Trick 1：模拟照片应用程序使用单个UIScrollView刷卡/缩放/滚动）。

Thanks for the suggestions and informative replies. I ended up just using the explanation shown on this page: (under "Trick 1: Emulating Photos app swiping/zooming/scrolling with a single UIScrollView").

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