@interface XXViewController (){    @property (strong, nonatomic) UITapGestureRecognizer *tapGesture;- (void)handleTapGesture:(UITapGestureRecognizer *)gesture;- (void)dismiss;@end@implementation XXViewController- (void)dismiss{    [self dismissModalViewControllerAnimated:YES];}- (void)viewDidAppear:(BOOL)animated{    if (iPadIdiom) {        if (self.tapGesture == nil) {            UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture:)];            self.tapGesture = tapGesture;        }                //将手势添加到 window 上        if ([self.view.window.gestureRecognizers containsObject:self.tapGesture] == NO) {            [self.view.window addGestureRecognizer:self.tapGesture];        }    }    [super viewDidAppear:animated];}- (void)viewWillDisappear:(BOOL)animated{    //将手势从 window 上移除    if ([self.view.window.gestureRecognizers containsObject:self.tapGesture]) {        [self.view.window removeGestureRecognizer:self.tapGesture];    }    [super viewWillDisappear:animated];}- (void)handleTapGesture:(UITapGestureRecognizer *)gesture{    //因为是 TapGesture 的需要点击次数为 1，所以这个判断实际可以不写    if (gesture.state == UIGestureRecognizerStateEnded) {        //传 nil，gesture 会返回触碰点在 windiow 上的值        CGPoint touchPoint = [gesture locationInView:nil];        //将得到的坐标转换成与 self.view 相对应的坐标        CGPoint convertPoint = [self.view convertPoint:touchPoint fromView:gesture.view];        //判断触碰点是否在 self.view。bounse 中，如果在则返回，否则调用 dismiss 方法        if (CGRectContainsPoint(self.view.bounds, convertPoint)) {            return;        }                [self dismiss];    }}@end

 

############# 更新 2014年07月24日13:11:06 ###############

之前的方法处理之后会有个小问题，presented 的 ViewController 如果有个列表，无法拿到点击事件（Button 没有测试，不知是否一样）

解决办法：

http://stackoverflow.com/a/12851794

1.设置 tapGestureRecognizer

tapGesture.cancelsTouchesInView = NO;

2.设置 gestureRecognizer 的 delegate

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer      shouldReceiveTouch:(UITouch *)touch{    if([touch.view class] == tableview.class){        return //YES/NO    }    return //YES/NO}

3.用 UIControl 代替 tapGestureRecognizer

- (void)viewDidAppear:(BOOL)animated{    if (iPadIdiom && self.dismissWhenTapOutsides) {        if (tapControl == nil) {            UIWindow *window = self.view.window;            tapControl = [[UIControl alloc] initWithFrame:window.bounds];            tapControl.backgroundColor = [UIColor clearColor];            [window insertSubview:tapControl atIndex:[window.subviews count] - 1];            [tapControl addTarget:self action:@selector(dismissOnTap) forControlEvents:UIControlEventTouchDown];        }    }        [super viewDidAppear:animated];}- (void)dismissOnTap{    [self dismissViewControllerAnimated:YES completion:nil];}- (void)viewWillDisappear:(BOOL)animated{    //将手势从 window 上移除    if (self.dismissWhenTapOutsides) {        if (tapControl && tapControl.superview) {            [tapControl removeFromSuperview];            tapControl = nil;        }    }    [super viewWillDisappear:animated];}