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.
  5. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
  6. CenterViewController *centerController = (CenterViewController *)[storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"];
  7. LeftViewController *leftController = (LeftViewController *)[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
  8. RightViewController *rightController = (RightViewController *)[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];
  9. self.containerController = [[IIViewDeckController alloc] initWithCenterViewController:centerController leftViewController:leftController rightViewController:rightController];
  10. self.containerController.leftSize = 100;
  11. self.containerController.rightSize = 200;
  12. self.containerController.view.frame = self.view.bounds;
  13. [self.view addSubview:self.containerController.view];
  14. }
  15. - (void)viewDidLoad
  16. {
  17. [super viewDidLoad];
  18. // Do any additional setup after loading the view, typically from a nib.
  19. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
  20. CenterViewController *centerController = (CenterViewController *)[storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"];
  21. LeftViewController *leftController = (LeftViewController *)[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
  22. RightViewController *rightController = (RightViewController *)[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];
  23. self.containerController = [[IIViewDeckController alloc] initWithCenterViewController:centerController leftViewController:leftController rightViewController:rightController];
  24. self.containerController.leftSize = 100;
  25. self.containerController.rightSize = 200;
  26. self.containerController.view.frame = self.view.bounds;
  27. [self.view addSubview:self.containerController.view];
  28. }

复制代码

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. }

复制代码

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;

复制代码

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
  2. {
  3. [super viewDidLoad];
  4. // Do any additional setup after loading the view.
  5. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
  6. _centerController = (MainViewController *)[storyboard instantiateViewControllerWithIdentifier:@"MainViewController"];
  7. _leftController = (LeftViewController *)[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
  8. _rightController = (RightViewController *)[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];
  9. [self.view addSubview:_centerController.view];
  10. [_centerController.view setTag:1];
  11. [_centerController.view setFrame:self.view.bounds];
  12. [self.view addSubview:_leftController.view];
  13. [_leftController.view setTag:2];
  14. [_leftController.view setFrame:self.view.bounds];
  15. [self.view addSubview:_rightController.view];
  16. [_rightController.view setTag:3];
  17. [_rightController.view setFrame:self.view.bounds];
  18. [self.view bringSubviewToFront:_centerController.view];
  19. //add swipe gesture
  20. UISwipeGestureRecognizer *swipeGestureRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
  21. [swipeGestureRight setDirection:UISwipeGestureRecognizerDirectionRight];
  22. [_centerController.view addGestureRecognizer:swipeGestureRight];
  23. UISwipeGestureRecognizer *swipeGestureLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
  24. [swipeGestureLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
  25. [_centerController.view addGestureRecognizer:swipeGestureLeft];
  26. }
  27. -(void) swipeGesture:(UISwipeGestureRecognizer *)swipeGestureRecognizer {
  28. CALayer *layer = [_centerController.view layer];
  29. layer.shadowColor = [UIColor blackColor].CGColor;
  30. layer.shadowOffset = CGSizeMake(1, 1);
  31. layer.shadowOpacity = 1;
  32. layer.shadowRadius = 20.0;
  33. if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionRight) {
  34. [_leftController.view setHidden:NO];
  35. [_rightController.view setHidden:YES];
  36. [UIView beginAnimations:nil context:nil];
  37. [UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
  38. if (_centerController.view.frame.origin.x == self.view.frame.origin.x || _centerController.view.frame.origin.x == -100) {
  39. [_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)];
  40. }
  41. [UIView commitAnimations];
  42. }
  43. if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionLeft) {
  44. [_rightController.view setHidden:NO];
  45. [_leftController.view setHidden:YES];
  46. [UIView beginAnimations:nil context:nil];
  47. [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
  48. if (_centerController.view.frame.origin.x == self.view.frame.origin.x || _centerController.view.frame.origin.x == 100) {
  49. [_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)];
  50. }
  51. [UIView commitAnimations];
  52. }
  53. }
  54. - (void)viewDidLoad
  55. {
  56. [super viewDidLoad];
  57. // Do any additional setup after loading the view.
  58. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
  59. _centerController = (MainViewController *)[storyboard instantiateViewControllerWithIdentifier:@"MainViewController"];
  60. _leftController = (LeftViewController *)[storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
  61. _rightController = (RightViewController *)[storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];
  62. [self.view addSubview:_centerController.view];
  63. [_centerController.view setTag:1];
  64. [_centerController.view setFrame:self.view.bounds];
  65. [self.view addSubview:_leftController.view];
  66. [_leftController.view setTag:2];
  67. [_leftController.view setFrame:self.view.bounds];
  68. [self.view addSubview:_rightController.view];
  69. [_rightController.view setTag:3];
  70. [_rightController.view setFrame:self.view.bounds];
  71. [self.view bringSubviewToFront:_centerController.view];
  72. //add swipe gesture
  73. UISwipeGestureRecognizer *swipeGestureRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
  74. [swipeGestureRight setDirection:UISwipeGestureRecognizerDirectionRight];
  75. [_centerController.view addGestureRecognizer:swipeGestureRight];
  76. UISwipeGestureRecognizer *swipeGestureLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
  77. [swipeGestureLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
  78. [_centerController.view addGestureRecognizer:swipeGestureLeft];
  79. }
  80. -(void) swipeGesture:(UISwipeGestureRecognizer *)swipeGestureRecognizer {
  81. CALayer *layer = [_centerController.view layer];
  82. layer.shadowColor = [UIColor blackColor].CGColor;
  83. layer.shadowOffset = CGSizeMake(1, 1);
  84. layer.shadowOpacity = 1;
  85. layer.shadowRadius = 20.0;
  86. if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionRight) {
  87. [_leftController.view setHidden:NO];
  88. [_rightController.view setHidden:YES];
  89. [UIView beginAnimations:nil context:nil];
  90. [UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
  91. if (_centerController.view.frame.origin.x == self.view.frame.origin.x || _centerController.view.frame.origin.x == -100) {
  92. [_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)];
  93. }
  94. [UIView commitAnimations];
  95. }
  96. if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionLeft) {
  97. [_rightController.view setHidden:NO];
  98. [_leftController.view setHidden:YES];
  99. [UIView beginAnimations:nil context:nil];
  100. [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
  101. if (_centerController.view.frame.origin.x == self.view.frame.origin.x || _centerController.view.frame.origin.x == 100) {
  102. [_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)];
  103. }
  104. [UIView commitAnimations];
  105. }
  106. }

复制代码

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. }

复制代码

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];
  2. id) BackFunc:(NSNotification*) notification {
  3. NSString *get = [notification object];
  4. if ([get isEqualToString:@"back"]) {
  5. [UIView beginAnimations:nil context:nil];
  6. [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
  7. [_centerController.view setFrame:CGRectMake(0, _centerController.view.frame.origin.y, _centerController.view.frame.size.width, _centerController.view.frame.size.height)];
  8. [UIView commitAnimations];
  9. }
  10. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(BackFunc:) name: @"back" object:nil];
  11. -(void) BackFunc:(NSNotification*) notification {
  12. NSString *get = [notification object];
  13. if ([get isEqualToString:@"back"]) {
  14. [UIView beginAnimations:nil context:nil];
  15. [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
  16. [_centerController.view setFrame:CGRectMake(0, _centerController.view.frame.origin.y, _centerController.view.frame.size.width, _centerController.view.frame.size.height)];
  17. [UIView commitAnimations];
  18. }
  19. }

复制代码

这样就ok啦啦!

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

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