iOS 两种方法实现左右滑动出现侧边菜单栏 slide view

现在很多的APP中都有slide view，左右滑动出现侧边菜单栏的功能，Weico这个应用就有。

网上有很多第三方的类库实现了这种效果，其实自己代码写的话也是很简单的，下面我将介绍两种方法实现slide view。---- 一种是用第三方类库IIViewDeckController这个类库实现的效果比起其他的都好，另一种是自己代码实现这种效果，效果还ok。


实现方法一（使用第三方库IIViewDeckController）：

https://github.com/Inferis/ViewDeck 这个是类库的下载地址，上面有介绍具体如何使用。不过大都不是用storyboard实现的，那么这里我介绍的是如何用storyboard实现。

 

（1 ）方法①

首先注意要导入相关的头文件，并且Link the QuartzCore.framework

然后在storyboard中添加三个navigation视图，分别表示中间，左边和右边的视图，并且创建相应的controller。

我的处理是初始化一个IIViewDeckController 实例然后作为子视图添加到最左边的视图中，而用右边的三个navigation视图 作为IIViewDeckController 实例对象的初始参数。

其中要注意的是，要分别在三个navigation视图添加identifier，注意是添加到的是navigation controller对应的视图（即第一个）。

下面看看代码：

[cpp] view plaincopyprint?

1. - (void)viewDidLoad 
2. { 
3. [super viewDidLoad]; 
4. // Do any additional setup after loading the view, typically from a nib. 
7. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; 
9. CenterViewController *centerController = (CenterViewController *)[storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"]; 
11. LeftViewController *leftController = (LeftViewController *)[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"]; 
13. RightViewController *rightController = (RightViewController *)[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"]; 
15. self.containerController = [[IIViewDeckController alloc] initWithCenterViewController:centerController leftViewController:leftController rightViewController:rightController]; 
17. self.containerController.leftSize = 100; 
18. self.containerController.rightSize = 200; 
20. self.containerController.view.frame = self.view.bounds; 
21. [self.view addSubview:self.containerController.view]; 
23. } 
24. - (void)viewDidLoad
25. {
26. [super viewDidLoad];
27. // Do any additional setup after loading the view, typically from a nib.
30. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
32. CenterViewController *centerController = (CenterViewController *)[storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"];
34. LeftViewController *leftController = (LeftViewController *)[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
36. RightViewController *rightController = (RightViewController *)[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];
38. self.containerController = [[IIViewDeckController alloc] initWithCenterViewController:centerController leftViewController:leftController rightViewController:rightController];
40. self.containerController.leftSize = 100;
41. self.containerController.rightSize = 200;
43. self.containerController.view.frame = self.view.bounds; 
44. [self.view addSubview:self.containerController.view];
46. }

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这里创建一个IIViewDeckController实例，然后把这个实例对象的视图作为子视图添加到这个view中，这样就实现了跳转到我们需要的IIViewDeckController那里了，让我们创建的IIViewDeckController实例处理左右滑动出现侧边栏的任务了。 

（2 ）方法②

这里再介绍一种实现方式：让最左边这个视图继承自IIViewDeckController然后在实现文件添加这个方法：

[cpp] view plaincopyprint?

1. - (id)initWithCoder:(NSCoder *)aDecoder 
2. { 
3. self = [super initWithCoder:aDecoder]; 
4. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; 
5. self = [super initWithCenterViewController:[storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"] 
6. leftViewController:[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"] 
7. rightViewController:[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"]]; 
8. if (self) { 
9. // Add any extra init code here 
10. } 
11. return self; 
12. } 
13. - (id)initWithCoder:(NSCoder *)aDecoder
14. {
15. self = [super initWithCoder:aDecoder];
16. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
17. self = [super initWithCenterViewController:[storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"]
18. leftViewController:[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"]
19. rightViewController:[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"]];
20. if (self) {
21. // Add any extra init code here
22. }
23. return self;
24. }

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实现的效果是：

实现方式二（不使用第三方库）：

下面简单说说这种滑动出现侧边栏是怎么回事，明显这就是一个视图层叠，那么简单点的话，就是往一个视图里面添加几个视图，然后添加swipe手势，左右滑动时，响应事件处理，在事件处理中让最上面的视图的位置发生变化，也就是视图移动，这样就可以显示出下面的视图，这样大致就可以解决了。

这里同样也是使用storyboard。而且storyboard里面的内容和上面的一样（其实解决方式借鉴了上面的方法①）。

首先分别创建对应的中间，左边，右边视图的controller（tableview controller）。

然后创建三个对应的属性

[cpp] view plaincopyprint?

1. @property(nonatomic, strong) MainViewController *centerController; 
2. @property(nonatomic, strong) RightViewController *rightController; 
3. @property(nonatomic, strong) LeftViewController *leftController; 
4. @property(nonatomic, strong) MainViewController *centerController;
5. @property(nonatomic, strong) RightViewController *rightController;
6. @property(nonatomic, strong) LeftViewController *leftController;

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接着作为subview添加到视图中并添加swipe手势。处理的代码如下： 

[cpp] view plaincopyprint?

1. - (void)viewDidLoad 
3. { 
4. [super viewDidLoad]; 
5. // Do any additional setup after loading the view. 
7. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; 
9. _centerController = (MainViewController *)[storyboard instantiateViewControllerWithIdentifier:@"MainViewController"]; 
11. _leftController = (LeftViewController *)[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"]; 
13. _rightController = (RightViewController *)[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"]; 
15. [self.view addSubview:_centerController.view]; 
16. [_centerController.view setTag:1]; 
17. [_centerController.view setFrame:self.view.bounds]; 
19. [self.view addSubview:_leftController.view]; 
20. [_leftController.view setTag:2]; 
21. [_leftController.view setFrame:self.view.bounds]; 
23. [self.view addSubview:_rightController.view]; 
24. [_rightController.view setTag:3]; 
25. [_rightController.view setFrame:self.view.bounds]; 
27. [self.view bringSubviewToFront:_centerController.view]; 
29. //add swipe gesture 
30. UISwipeGestureRecognizer *swipeGestureRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)]; 
31. [swipeGestureRight setDirection:UISwipeGestureRecognizerDirectionRight]; 
32. [_centerController.view addGestureRecognizer:swipeGestureRight]; 
34. UISwipeGestureRecognizer *swipeGestureLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)]; 
35. [swipeGestureLeft setDirection:UISwipeGestureRecognizerDirectionLeft]; 
36. [_centerController.view addGestureRecognizer:swipeGestureLeft]; 
37. } 
38. -(void) swipeGesture:(UISwipeGestureRecognizer *)swipeGestureRecognizer { 
40. CALayer *layer = [_centerController.view layer]; 
41. layer.shadowColor = [UIColor blackColor].CGColor; 
42. layer.shadowOffset = CGSizeMake(1, 1); 
43. layer.shadowOpacity = 1; 
44. layer.shadowRadius = 20.0; 
45. if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionRight) { 
46. [_leftController.view setHidden:NO]; 
47. [_rightController.view setHidden:YES]; 
49. [UIView beginAnimations:nil context:nil]; 
50. [UIView setAnimationCurve:UIViewAnimationCurveEaseIn]; 
51. if (_centerController.view.frame.origin.x == self.view.frame.origin.x || _centerController.view.frame.origin.x == -100) { 
52. [_centerController.view setFrame:CGRectMake(_centerController.view.frame.origin.x+100, _centerController.view.frame.origin.y, _centerController.view.frame.size.width, _centerController.view.frame.size.height)]; 
53. } 
55. [UIView commitAnimations]; 
56. } 
57. if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionLeft) { 
58. [_rightController.view setHidden:NO]; 
59. [_leftController.view setHidden:YES]; 
61. [UIView beginAnimations:nil context:nil]; 
62. [UIView setAnimationCurve:UIViewAnimationCurveEaseOut]; 
63. if (_centerController.view.frame.origin.x == self.view.frame.origin.x || _centerController.view.frame.origin.x == 100) { 
64. [_centerController.view setFrame:CGRectMake(_centerController.view.frame.origin.x-100, _centerController.view.frame.origin.y, _centerController.view.frame.size.width, _centerController.view.frame.size.height)]; 
65. } 
67. [UIView commitAnimations]; 
68. } 
69. } 
70. - (void)viewDidLoad
71. {
72. [super viewDidLoad];
73. // Do any additional setup after loading the view.
75. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
77. _centerController = (MainViewController *)[storyboard instantiateViewControllerWithIdentifier:@"MainViewController"];
79. _leftController = (LeftViewController *)[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
81. _rightController = (RightViewController *)[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"]; 
83. [self.view addSubview:_centerController.view];
84. [_centerController.view setTag:1];
85. [_centerController.view setFrame:self.view.bounds];
87. [self.view addSubview:_leftController.view];
88. [_leftController.view setTag:2];
89. [_leftController.view setFrame:self.view.bounds];
91. [self.view addSubview:_rightController.view];
92. [_rightController.view setTag:3];
93. [_rightController.view setFrame:self.view.bounds];
95. [self.view bringSubviewToFront:_centerController.view];
97. //add swipe gesture
98. UISwipeGestureRecognizer *swipeGestureRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
99. [swipeGestureRight setDirection:UISwipeGestureRecognizerDirectionRight];
100. [_centerController.view addGestureRecognizer:swipeGestureRight];
102. UISwipeGestureRecognizer *swipeGestureLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
103. [swipeGestureLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
104. [_centerController.view addGestureRecognizer:swipeGestureLeft];
105. }
106. -(void) swipeGesture:(UISwipeGestureRecognizer *)swipeGestureRecognizer {
108. CALayer *layer = [_centerController.view layer];
109. layer.shadowColor = [UIColor blackColor].CGColor;
110. layer.shadowOffset = CGSizeMake(1, 1);
111. layer.shadowOpacity = 1;
112. layer.shadowRadius = 20.0;
113. if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionRight) {
114. [_leftController.view setHidden:NO];
115. [_rightController.view setHidden:YES];
117. [UIView beginAnimations:nil context:nil];
118. [UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
119. if (_centerController.view.frame.origin.x == self.view.frame.origin.x || _centerController.view.frame.origin.x == -100) {
120. [_centerController.view setFrame:CGRectMake(_centerController.view.frame.origin.x+100, _centerController.view.frame.origin.y, _centerController.view.frame.size.width, _centerController.view.frame.size.height)];
121. }
123. [UIView commitAnimations];
124. }
125. if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionLeft) {
126. [_rightController.view setHidden:NO];
127. [_leftController.view setHidden:YES];
129. [UIView beginAnimations:nil context:nil];
130. [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
131. if (_centerController.view.frame.origin.x == self.view.frame.origin.x || _centerController.view.frame.origin.x == 100) {
132. [_centerController.view setFrame:CGRectMake(_centerController.view.frame.origin.x-100, _centerController.view.frame.origin.y, _centerController.view.frame.size.width, _centerController.view.frame.size.height)];
133. }
135. [UIView commitAnimations];
136. }
137. }

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下面稍稍解说一下在swipe手势的事件处理中的一些处理： ①为center视图添加阴影边框

②这里swipe手势响应的是左右滑动，右滑动时是要出现左视图，所以要隐藏右视图，同理就知道如何处理左滑动了。

③cente 视图移动时添加了动画

说明：我这样处理大致还是可以实现这种效果的。下面附上一张在我应用在sina weibo demo中的效果图：

还不错吧！

下面进行一点点补充：上面我们实现的都是通过swipe滑动最上层的view来实现左右侧移，那么这样就太局限了，那么如何实现例如点击下面view中的LEFT按键来移动上层的view呢？其实也很简单，我这里的处理是用notification通知，就是在button那里发送一个通知，在上层的view监听。当然呢，也可以用delegate和kvo实现，但是这个。。。暂时没有研究，就算了，有空再了解一下。

下面附加一下代码：

在下面那层view的controller添加这个方法：

[cpp] view plaincopyprint?

1. - (IBAction)BackButton:(id)sender { 
2. NSString *myString = @"back"; 
3. [[NSNotificationCenter defaultCenter] postNotificationName: @"back" object:myString userInfo: nil]; 
4. } 
5. - (IBAction)BackButton:(id)sender {
6. NSString *myString = @"back";
7. [[NSNotificationCenter defaultCenter] postNotificationName: @"back" object:myString userInfo: nil];
8. }

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在上面这个层的view的controller添加下面的代码： 

[cpp] view plaincopyprint?

1. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(BackFunc:) name: @"back" object:nil]; 
4. id) BackFunc:(NSNotification*) notification { 
5. NSString *get = [notification object]; 
6. if ([get isEqualToString:@"back"]) { 
8. [UIView beginAnimations:nil context:nil]; 
9. [UIView setAnimationCurve:UIViewAnimationCurveEaseOut]; 
10. [_centerController.view setFrame:CGRectMake(0, _centerController.view.frame.origin.y, _centerController.view.frame.size.width, _centerController.view.frame.size.height)]; 
11. [UIView commitAnimations]; 
12. } 
13. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(BackFunc:) name: @"back" object:nil];
16. -(void) BackFunc:(NSNotification*) notification {
17. NSString *get = [notification object];
18. if ([get isEqualToString:@"back"]) {
20. [UIView beginAnimations:nil context:nil];
21. [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
22. [_centerController.view setFrame:CGRectMake(0, _centerController.view.frame.origin.y, _centerController.view.frame.size.width, _centerController.view.frame.size.height)];
23. [UIView commitAnimations];
24. }
25. }

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这样就ok啦啦！ 

原文链接：http://blog.csdn.net/crayon_dys/article/details/9057637