iOS添加边缘手势( UIScreenEdgePanGestureRecognizer)实现侧滑效果

@property(nonatomic,weak)UIView *adView;

// 添加边缘手势
UIScreenEdgePanGestureRecognizer *ges = [[UIScreenEdgePanGestureRecognizer alloc] initWithTarget:self action:@selector(showAd:)];
// 指定左边缘滑动
ges.edges = UIRectEdgeLeft;
[self.view addGestureRecognizer:ges];
// 如果ges的手势与collectionView手势都识别的话,指定以下代码,代表是识别传入的手势
[self.collectionView.panGestureRecognizer requireGestureRecognizerToFail:ges];

- (void)showAd:(UIScreenEdgePanGestureRecognizer *)ges {
// 让view跟着手指去移动
// frame的x应该为多少??应该获取到手指的x值
// 取到手势在当前控制器视图中识别的位置
CGPoint p = [ges locationInView:self.view];
NSLog(@"%@", NSStringFromCGPoint(p));
CGRect frame = self.adView.frame;
// 更改adView的x值. 手指的位置 - 屏幕宽度
frame.origin.x = p.x - [UIScreen mainScreen].bounds.size.width;
// 重新设置上去
self.adView.frame = frame;

if (ges.state == UIGestureRecognizerStateEnded || ges.state == UIGestureRecognizerStateCancelled) {
// 判断当前广告视图在屏幕上显示是否超过一半
if (CGRectContainsPoint(self.view.frame, self.adView.center)) {
// 如果超过,那么完全展示出来
frame.origin.x = 0;
}else{
// 如果没有,隐藏
frame.origin.x = -[UIScreen mainScreen].bounds.size.width;
}
[UIView animateWithDuration:0.25 animations:^{
self.adView.frame = frame;
}];
}
}

/**
*  添加滑出的view
*/
- (void)setupAdView {
UIView *view = [[UIView alloc] initWithFrame:[UIScreen mainScreen].bounds];
// 设置背景颜色
view.backgroundColor = [UIColor randomColor];
CGRect frame = view.frame;
// 将x值改成负的屏幕宽度,原因是因为默认就在屏幕的左边
frame.origin.x = -view.frame.size.width;
// 设置给view
view.frame = frame;
// 因为该view是盖在所有的view身上,所以应该添加到window上
[[UIApplication sharedApplication].keyWindow addSubview:view];
self.adView = view;

// 添加轻扫手势  -- 滑回
UISwipeGestureRecognizer *ges = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(closeAd)];
ges.direction = UISwipeGestureRecognizerDirectionLeft;
[self.adView addGestureRecognizer:ges];
}

- (void)closeAd {
[UIView animateWithDuration:0.25 animations:^{
CGRect frame = self.adView.frame;
frame.origin.x = -[UIScreen mainScreen].bounds.size.width;
self.adView.frame = frame;
}];
}