屏蔽响应事件继续向父视图传递的category

屏蔽响应事件继续向父视图传递的category

这篇教程是上一篇教程的升级版，将复杂的代码封装成了category，更便于使用:)

效果：

源码：

UIGestureRecognizer+EnvetInCurrentView.h 与 UIGestureRecognizer+EnvetInCurrentView.m

//

//  UIGestureRecognizer+EnvetInCurrentView.h

//  BackgroundView

//

//  Created by YouXianMing on 14-10-3.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import <UIKit/UIKit.h>

typedef void (^CurrentViewBlock)(UIGestureRecognizer *gesture);

typedef void (^OtherViewBlock)(UIGestureRecognizer *gesture);

@interface UIGestureRecognizer (EnvetInCurrentView)

- (void)eventInCurrentView:(CurrentViewBlock)currentViewBlock

               inOtherView:(OtherViewBlock)otherViewBlock;

@end

//

//  UIGestureRecognizer+EnvetInCurrentView.m

//  BackgroundView

//

//  Created by YouXianMing on 14-10-3.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import "UIGestureRecognizer+EnvetInCurrentView.h"

@implementation UIGestureRecognizer (EnvetInCurrentView)

- (void)eventInCurrentView:(CurrentViewBlock)currentViewBlock

               inOtherView:(OtherViewBlock)otherViewBlock

{

    UIEvent *event = [[UIEvent alloc] init];

    CGPoint location = [self locationInView:self.view];

    //check actually view you hit via hitTest

    UIView *view = [self.view hitTest:location withEvent:event];

    if ([view.gestureRecognizers containsObject:self]) {

        currentViewBlock(self);

    } else {

        otherViewBlock(self);

    }

}

@end

使用时候的源码：

//

//  ViewController.m

//  BackgroundView

//

//  Created by YouXianMing on 14-10-3.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import "ViewController.h"

#import "UIView+BackgroundView.h"

#import "UIGestureRecognizer+EnvetInCurrentView.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // 添加手势

    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self

                                                                          action:@selector(handleSingleTap:)];

    [self.view addGestureRecognizer:tap];

    UILabel *label      = [[UILabel alloc] initWithFrame:self.view.bounds];

    label.text          = @"Y.X. Touch Test";

    label.textAlignment = NSTextAlignmentCenter;

    label.font          = [UIFont fontWithName:@"HelveticaNeue-Thin" size:.f];

    label.textColor     = [UIColor redColor];

    [self.view addSubview:label];

}

- (void)handleSingleTap:(UIGestureRecognizer *)gestureRecognizer

{

    [gestureRecognizer eventInCurrentView:^(UIGestureRecognizer *gesture) {

        NSLog(@"当前视图事件");

        // 显示

        [self.view showBackgroundViewAndConfig:^(BackgroundView *configView) {

            configView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.6];

            configView.startDuration = 0.4f;

            configView.endDuration   = 0.4f;

        }];

        // 延迟3s执行

        [self performSelector:@selector(affterDelay)

                   withObject:nil

                   afterDelay:.f];

    } inOtherView:^(UIGestureRecognizer *gesture) {

        NSLog(@"其他视图的事件");

    }];

}

- (void)affterDelay

{

    // 隐藏

    [self.view removeBackgroundView];

}

@end

以下是需要注意的地方：