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 
    
     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

////  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:40.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:3.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：