服务器之家:专注于服务器技术及软件下载分享
分类导航

PHP教程|ASP.NET教程|Java教程|ASP教程|编程技术|正则表达式|C/C++|IOS|C#|Swift|Android|VB|R语言|JavaScript|易语言|vb.net|

服务器之家 - 编程语言 - IOS - IOS实现点击滑动抽屉效果

IOS实现点击滑动抽屉效果

2021-01-08 14:24iOS开发网 IOS

这篇文章主要为大家详细介绍了IOS实现点击滑动抽屉效果的相关资料,文中示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

最近,看到好多Android上的抽屉效果,也忍不住想要自己写一个。在Android里面可以用SlidingDrawer,很方便的实现。IOS上面就只有自己写了。其实原理很简单就是 UIView 的移动,和一些手势的操作。

效果图:

IOS实现点击滑动抽屉效果

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
//
// DrawerView.h
// DrawerDemo
//
// Created by Zhouhaifeng on 12-3-27.
// Copyright (c) 2012年 CJLU. All rights reserved.
//
 
#import <UIKit/UIKit.h>
 
typedef enum
{
 DrawerViewStateUp = 0,
 DrawerViewStateDown
}DrawerViewState;
 
@interface DrawerView : UIView<UIGestureRecognizerDelegate>
{
 UIImageView *arrow;   //向上拖拽时显示的图片 
 
 CGPoint upPoint;   //抽屉拉出时的中心点
 CGPoint downPoint;   //抽屉收缩时的中心点
  
 UIView *parentView;   //抽屉所在的view
 UIView *contentView;  //抽屉里面显示的内容
  
 DrawerViewState drawState; //当前抽屉状态
}
 
- (id)initWithView:(UIView *) contentview parentView :(UIView *) parentview;
- (void)handlePan:(UIPanGestureRecognizer *)recognizer;
- (void)handleTap:(UITapGestureRecognizer *)recognizer;
- (void)transformArrow:(DrawerViewState) state;
 
@property (nonatomic,retain) UIView *parentView;
@property (nonatomic,retain) UIView *contentView;
@property (nonatomic,retain) UIImageView *arrow;
@property (nonatomic) DrawerViewState drawState;
 
@end
?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
//
// DrawerView.m
// DrawerDemo
//
// Created by Zhouhaifeng on 12-3-27.
// Copyright (c) 2012年 CJLU. All rights reserved.
//
 
#import "DrawerView.h"
 
@implementation DrawerView
@synthesize contentView,parentView,drawState;
@synthesize arrow;
 
- (id)initWithView:(UIView *) contentview parentView :(UIView *) parentview;
{
 self = [super initWithFrame:CGRectMake(0,0,contentview.frame.size.width, contentview.frame.size.height+40)];
 if (self) {
  // Initialization code  
  contentView = contentview;
  parentView = parentview;
   
  //一定要开启
  [parentView setUserInteractionEnabled:YES];
   
  //嵌入内容区域的背景
  UIImage *drawer_bg = [UIImage imageNamed:@"drawer_content.png"];
  UIImageView *view_bg = [[UIImageView alloc]initWithImage:drawer_bg];
  [view_bg setFrame:CGRectMake(0,40,contentview.frame.size.width, contentview.bounds.size.height+40)];
  [self addSubview:view_bg];
  
  //头部拉拽的区域背景
  UIImage *drawer_handle = [UIImage imageNamed:@"drawer_handlepng.png"];
  UIImageView *view_handle = [[UIImageView alloc]initWithImage:drawer_handle];
  [view_handle setFrame:CGRectMake(0,0,contentview.frame.size.width,40)];
  [self addSubview:view_handle];
   
  //箭头的图片
  UIImage *drawer_arrow = [UIImage imageNamed:@"drawer_arrow.png"];
  arrow = [[UIImageView alloc]initWithImage:drawer_arrow];
  [arrow setFrame:CGRectMake(0,0,28,28)];
  arrow.center = CGPointMake(contentview.frame.size.width/2, 20);
  [self addSubview:arrow];
   
  //嵌入内容的UIView
  [contentView setFrame:CGRectMake(0,40,contentview.frame.size.width, contentview.bounds.size.height+40)];
  [self addSubview:contentview];
   
  //移动的手势
  UIPanGestureRecognizer *panRcognize=[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];
  panRcognize.delegate=self;
  [panRcognize setEnabled:YES];
  [panRcognize delaysTouchesEnded];
  [panRcognize cancelsTouchesInView];
   
  [self addGestureRecognizer:panRcognize];
   
  //单击的手势
  UITapGestureRecognizer *tapRecognize = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleTap:)];
  tapRecognize.numberOfTapsRequired = 1;
  tapRecognize.delegate = self;
  [tapRecognize setEnabled :YES];
  [tapRecognize delaysTouchesBegan];
  [tapRecognize cancelsTouchesInView];
   
  [self addGestureRecognizer:tapRecognize];
   
  //设置两个位置的坐标
  downPoint = CGPointMake(parentview.frame.size.width/2, parentview.frame.size.height+contentview.frame.size.height/2-40);
  upPoint = CGPointMake(parentview.frame.size.width/2, parentview.frame.size.height-contentview.frame.size.height/2-40);
  self.center = downPoint;
   
  //设置起始状态
  drawState = DrawerViewStateDown;
 }
 return self;
}
 
 
#pragma UIGestureRecognizer Handles
/* 
 * 移动图片处理的函数
 * @recognizer 移动手势
 */
- (void)handlePan:(UIPanGestureRecognizer *)recognizer {
  
  
 CGPoint translation = [recognizer translationInView:parentView];
 if (self.center.y + translation.y < upPoint.y) {
  self.center = upPoint;
 }else if(self.center.y + translation.y > downPoint.y)
 {
  self.center = downPoint;
 }else{
  self.center = CGPointMake(self.center.x,self.center.y + translation.y);
 }
 [recognizer setTranslation:CGPointMake(0, 0) inView:parentView];
  
 if (recognizer.state == UIGestureRecognizerStateEnded) {
  [UIView animateWithDuration:0.75 delay:0.15 options:UIViewAnimationOptionCurveEaseOut animations:^{
    if (self.center.y < downPoint.y*4/5) {
     self.center = upPoint;
     [self transformArrow:DrawerViewStateUp];
    }else
    {
     self.center = downPoint;
     [self transformArrow:DrawerViewStateDown];
    }
 
  } completion:nil];
 
 
}
 
/*
 * handleTap 触摸函数
 * @recognizer UITapGestureRecognizer 触摸识别器
 */
-(void) handleTap:(UITapGestureRecognizer *)recognizer
{
  [UIView animateWithDuration:0.75 delay:0.15 options:UIViewAnimationOptionTransitionCurlUp animations:^{
   if (drawState == DrawerViewStateDown) {
    self.center = upPoint;
    [self transformArrow:DrawerViewStateUp];
   }else
   {
    self.center = downPoint;
    [self transformArrow:DrawerViewStateDown];
   }
  } completion:nil];
 
}
 
/*
 * transformArrow 改变箭头方向
 * state DrawerViewState 抽屉当前状态
 */
-(void)transformArrow:(DrawerViewState) state
{
  //NSLog(@"DRAWERSTATE :%d STATE:%d",drawState,state);
  [UIView animateWithDuration:0.3 delay:0.35 options:UIViewAnimationOptionCurveEaseOut animations:^{
   if (state == DrawerViewStateUp){ 
     arrow.transform = CGAffineTransformMakeRotation(M_PI);
    }else
    {
      arrow.transform = CGAffineTransformMakeRotation(0);
    }
  } completion:^(BOOL finish){
    drawState = state;
  }];
   
  
}
 
@end

以上就是本文的全部内容,希望对大家的学习有所帮助。

延伸 · 阅读

精彩推荐
  • IOS解析iOS开发中的FirstResponder第一响应对象

    解析iOS开发中的FirstResponder第一响应对象

    这篇文章主要介绍了解析iOS开发中的FirstResponder第一响应对象,包括View的FirstResponder的释放问题,需要的朋友可以参考下...

    一片枫叶4662020-12-25
  • IOSIOS 屏幕适配方案实现缩放window的示例代码

    IOS 屏幕适配方案实现缩放window的示例代码

    这篇文章主要介绍了IOS 屏幕适配方案实现缩放window的示例代码,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要...

    xiari5772021-06-01
  • IOSiOS通过逆向理解Block的内存模型

    iOS通过逆向理解Block的内存模型

    自从对 iOS 的逆向初窥门径后,我也经常通过它来分析一些比较大的应用,参考一下这些应用中某些功能的实现。这个探索的过程乐趣多多,不仅能满足自...

    Swiftyper12832021-03-03
  • IOSiOS中tableview 两级cell的展开与收回的示例代码

    iOS中tableview 两级cell的展开与收回的示例代码

    本篇文章主要介绍了iOS中tableview 两级cell的展开与收回的示例代码,小编觉得挺不错的,现在分享给大家,也给大家做个参考。一起跟随小编过来看看吧...

    J_Kang3862021-04-22
  • IOSiOS 雷达效果实例详解

    iOS 雷达效果实例详解

    这篇文章主要介绍了iOS 雷达效果实例详解的相关资料,需要的朋友可以参考下...

    SimpleWorld11022021-01-28
  • IOS关于iOS自适应cell行高的那些事儿

    关于iOS自适应cell行高的那些事儿

    这篇文章主要给大家介绍了关于iOS自适应cell行高的那些事儿,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的...

    daisy6092021-05-17
  • IOSiOS布局渲染之UIView方法的调用时机详解

    iOS布局渲染之UIView方法的调用时机详解

    在你刚开始开发 iOS 应用时,最难避免或者是调试的就是和布局相关的问题,下面这篇文章主要给大家介绍了关于iOS布局渲染之UIView方法调用时机的相关资料...

    windtersharp7642021-05-04
  • IOSIOS开发之字典转字符串的实例详解

    IOS开发之字典转字符串的实例详解

    这篇文章主要介绍了IOS开发之字典转字符串的实例详解的相关资料,希望通过本文能帮助到大家,让大家掌握这样的方法,需要的朋友可以参考下...

    苦练内功5832021-04-01