上一博文提到查找上一响应者的方法，现在就通过代码测试验证一下。

一、首先看一下测试代码结构

myViews基础myView,myView继承UIView。黄色是myviews的对象,蓝色是myView对象,红色是添加的View。

二、代码

1.在AppDelagate.m中添加

2.在ViewController中

#import "ViewController.h"#import "myView.h"#import "myViews.h"@interface ViewController ()@property(nonatomic,strong)UIView *view1;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    self.view.tag=10003;    self.view1=[[UIView alloc]init];    self.view1.frame=CGRectMake(50, 100, 40, 40);    self.view1.backgroundColor=[UIColor redColor];    self.view1.tag=10001;    [self.view addSubview:self.view1];        myView *myview1=[[myView alloc]init];    myview1.frame=CGRectMake(50, 100, 30, 30);    myview1.backgroundColor=[UIColor blueColor];    myview1.tag=10002;//    userInteractionEnabled是否可以用户交互 YES可以响应点击事件    myview1.userInteractionEnabled=YES;    [self.view addSubview:myview1];        myViews *myviews1=[[myViews alloc]init];    myviews1.frame=CGRectMake(50, 100, 25, 25);    myviews1.backgroundColor=[UIColor yellowColor];    [self.view addSubview:myviews1];   }-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    UITouch *touch=[touches anyObject];    //判断点击的是哪一个View 可以通过tag值 或通过＝＝判断   // NSLog(@"Yes or No:%d",self.view1==touch.view);  //  NSLog(@"%ld",touch.view.tag);        NSLog(@"控制器触屏开始滑动");    //tapCount点击次数    NSLog(@"%ld",touch.tapCount);    }-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{    UITouch *touch=[touches anyObject];    //locationInView 相对于参数View的当前位置    CGPoint loactionPoint=[touch locationInView:self.view1];    NSLog(@"%@",NSStringFromCGPoint(loactionPoint));    //locationInView 相对于参数View的前一位置    CGPoint prePoint=[touch previousLocationInView:self.view1];    NSLog(@"%@",NSStringFromCGPoint(prePoint));    CGFloat moveX=loactionPoint.x-prePoint.x;    CGFloat moveY=loactionPoint.y-prePoint.y;    NSLog(@"%f %f",moveX,moveY);    CGPoint temp=self.view1.center;    temp.x+=moveX;    temp.y+=moveY;    self.view1.center=temp;}-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"控制器触屏滑动结束");}-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{    //一般应用在来电话等    NSLog(@"控制器触屏取消");}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end

 在myView.m中

#import "myView.h"@implementation myView-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"子View触屏开始");}-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"子view触屏中");}-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"子view触屏结束");}@end

 在myViews.m中

#import "myViews.h"@implementation myViews-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"子子View触屏开始");}-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"子子view触屏中");}-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{    NSLog(@"子子view触屏结束");}@end

 三、运行效果图

四、验证

1.依次点击黄、蓝、红、白

由上面运行结果可以看出：黄色、蓝色的响应者都是本身，红色未实现Touch方法，它的响应者为ViewController中的View,由于该View也未实现，但它属于是ViewController的View，所以它的响应者是ViewController.

2.注释myViews、ViewController中的Touch实现，依次点击黄、蓝、红、白

由于myViews、ViewController类中的Touch实现注释，黄色点击时找其父视图，则找到myView中的，而将控制器的Touch实现注释则红色、白色的响应者变成了Application，所以调用了Appdalegate中的Touch实现，类似父节点的查找。