用UIControl封装Button
效果
说明
UIControl在处理超出触摸范围的触摸事件时有bug
源码
基础类
//
// BaseControl.h
// BaseControl
//
// Created by YouXianMing on 15/8/26.
// Copyright (c) 2015年 YouXianMing. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface BaseControl : UIControl
/**
* ==== 由子类重写 ====
*
* 开始触发事件
*/
- (void)beginTouch;
/**
* ==== 由子类重写 ====
*
* 结束触发事件
*
* @param outRange 是否超出操作范围
*/
- (void)endTouchOutOfRange:(BOOL)outRange;
@end//
// BaseControl.m
// BaseControl
//
// Created by YouXianMing on 15/8/26.
// Copyright (c) 2015年 YouXianMing. All rights reserved.
//
#import "BaseControl.h"
@interface BaseControl ()
@property (nonatomic) CGPoint endPoint;
@end
@implementation BaseControl
#pragma mark -
- (void)beginTouch {
}
- (void)endTouchOutOfRange:(BOOL)outRange {
}
#pragma mark - UIControl事件
- (BOOL)beginTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
[self beginTouch];
return YES;
}
- (BOOL)continueTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
return YES;
}
- (void)endTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
self.endPoint = [touch locationInView:self];
}
- (void)cancelTrackingWithEvent:(UIEvent *)event {
[super cancelTrackingWithEvent:event];
}
- (void)sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event {
CGPoint point = self.endPoint;
if (point.x >= 0 && point.x <= self.bounds.size.width && point.y >= 0 && point.y <= self.bounds.size.height) {
[self endTouchOutOfRange:NO];
[super sendAction:action to:target forEvent:event];
} else {
[self endTouchOutOfRange:YES];
[super sendAction:action to:target forEvent:event];
}
}
@end//
// ColorButton.h
// BaseControl
//
// Created by YouXianMing on 15/8/26.
// Copyright (c) 2015年 YouXianMing. All rights reserved.
//
#import "BaseControl.h"
@interface ColorButton : BaseControl
@end//
// ColorButton.m
// BaseControl
//
// Created by YouXianMing on 15/8/26.
// Copyright (c) 2015年 YouXianMing. All rights reserved.
//
#import "ColorButton.h"
@implementation ColorButton
- (void)beginTouch {
[UIView animateWithDuration:0.4f delay:0.f usingSpringWithDamping:1.f initialSpringVelocity:0.f options:0 animations:^{
self.backgroundColor = [UIColor redColor];
} completion:^(BOOL finished) {
}];
}
- (void)endTouchOutOfRange:(BOOL)outRange {
[UIView animateWithDuration:0.4f delay:0.f usingSpringWithDamping:1.f initialSpringVelocity:0.f options:0 animations:^{
self.backgroundColor = [UIColor whiteColor];
} completion:^(BOOL finished) {
}];
}
@end//
// ViewController.m
// BaseControl
//
// Created by YouXianMing on 15/8/26.
// Copyright (c) 2015年 YouXianMing. All rights reserved.
//
#import "ViewController.h"
#import "ColorButton.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
ColorButton *control = [[ColorButton alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
control.center = self.view.center;
control.layer.borderWidth = 1.f;
[self.view addSubview:control];
[control addTarget:self action:@selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside];
}
- (void)buttonEvent:(id)sender {
}
@end细节
