iOS-------delegate与UITouch
//
// CustomView.h
// Delegate
//
// Created by feizhu on 14-9-19.
// Copyright (c) 2014年 www.feizhu.com. All rights reserved.
//
#import
@class CustomView;
@protocol CustomViewDelegate <NSObject>
@optional
//customView开始被触摸时
- (void)customViewBeganTouch:(CustomView *)customView;
//customView被触摸的过程中
- (void)customViewMovedTouch:(CustomView *)customView;
//customView结束被触摸时
- (void)customViewEndTouch:(CustomView *)customView;
@end
@interface CustomView : UIView
//声明属性
@property (nonatomic,assign) id<CustomViewDelegate>delegate;
@end
//
// CustomView.m
// Delegate
//
// Created by feizhu on 14-9-19.
// Copyright (c) 2014年 www.feizhu.com. All rights reserved.
//
#import "CustomView.h"
#import "RootViewController.h"
@implementation CustomView
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
}
return self;
}
//响应
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
//当customVie开始被触摸式,通知代理执行相应的代理方法,紧接着 实现某种操作.
if ([_delegate respondsToSelector:@selector(customViewBeganTouch:)])
{
[_delegate customViewBeganTouch:self];
}
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
if ([_delegate respondsToSelector:@selector(customViewMovedTouch:)])
{
[_delegate customViewMovedTouch:self];
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
//当时customView在触摸结束时,通知代理执行相应的代理.实现相应的某种操作.
if ([_delegate respondsToSelector:@selector(customViewEndTouch:)])
{
[_delegate customViewEndTouch:self];
}
}
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
// Drawing code
}
*/
@end
//
// RootViewController.h
// Delegate
//
// Created by feizhu on 14-9-19.
// Copyright (c) 2014年 www.feizhu.com. All rights reserved.
//
#import
//遵守协议
#import "CustomView.h"
@interface RootViewController : UIViewController<CustomViewDelegate>
@end
//
// RootViewController.m
// Delegate
//
// Created by feizhu on 14-9-19.
// Copyright (c) 2014年 feizhu. All rights reserved.
//
#import "RootViewController.h"
#import "CustomView.h"
@interface RootViewController ()
@end
@implementation RootViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
CustomView *view = [[CustomView alloc] initWithFrame:CGRectMake(50, 50, 100, 100)];
view.backgroundColor = [UIColor grayColor];
[self.view addSubview:view];
[view release];
//设置customView协议
view.delegate = self;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
//customView开始被触摸时
- (void)customViewBeganTouch:(CustomView *)customView
{
NSLog(@"%s",__FUNCTION__);
customView.backgroundColor = [UIColor redColor];
}
//customView被触摸的过程中
- (void)customViewMovedTouch:(CustomView *)customView
{
NSLog(@"%s",__FUNCTION__);
customView.backgroundColor = [UIColor yellowColor];
}
//customView结束被触摸时
- (void)customViewEndTouch:(CustomView *)customView
{
NSLog(@"%s",__FUNCTION__);
customView.backgroundColor = [UIColor blueColor];
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end