IOS实现弹出菜单效果MenuViewController(背景 景深 弹出菜单)

转载自 http://www.2cto.com/kf/201309/244772.html

在写项目时，要实现一个从下移上来的一个弹出菜单，并且背景变深的这么一个效果，在此分享给大家。

主要说一下思路及一些核心代码贴出来，要想下载源码，

请到：http://download.csdn.net/download/rhljiayou/6280989

一个简单，效果好，比较实用的菜单弹出效果的实现，效果图：

 

实现方式：将self.view当前页面缩小，在当前页的上面添加一个菜单的view，即在self.view.superview添加。

 

//显示  - (void) show:(UIView*)parent  {      parentView = parent;            //先隐藏backView,table      backView.alpha = 0;      _table.alpha = 0;            //移动table      [_table setTransform:CGAffineTransformMakeTranslation(0, _table.frame.size.height)];            //父窗口添加本view，---这个会调用viewDidLoad      [parentView.superview addSubview:self.view];            //添加动画，添加到父窗口中，使之从下移动上      [UIView animateWithDuration:0.3 animations:^{          //父窗口缩小          CGAffineTransform t = CGAffineTransformMakeScale(0.9, 0.9);          [parentView setTransform:t];                    //显示backview,table          backView.alpha = 1;          _table.alpha = 1;                    //移动table,CGAffineTransformIdentity还原原始坐标          [_table setTransform:CGAffineTransformIdentity];        } completion:^(BOOL finished) {                }];              }  //隐藏  - (void) hide  {      //添加动画，添加到父窗口中，使之从下移动上      [UIView animateWithDuration:0.3 animations:^{          //父窗口还原           CGAffineTransform t = CGAffineTransformIdentity;          [parentView setTransform:t];                    //显示backview,table          backView.alpha = 0;          _table.alpha = 0;                    //移动table          [_table setTransform:CGAffineTransformMakeTranslation(0, _table.frame.size.height)];                } completion:^(BOOL finished) {          [self.view removeFromSuperview];      }];  }    - (void)viewDidLoad  {      [super viewDidLoad];            self.view.backgroundColor = [UIColor clearColor];            //背影黑罩      backView = [[UIView alloc]initWithFrame:self.view.bounds];      backView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.3];      [self.view addSubview:backView];            //算出table的CGRect      CGRect rect = self.view.bounds;      int height = _titleArray.count * 44;      rect.origin.y = rect.size.height - height;      rect.size.height = height;            _table = [[UITableView alloc]initWithFrame:rect];      _table.delegate = self;      _table.dataSource = self;      [self.view addSubview:_table];