边缘侧滑手势

除了常见的几种手势，如点击，滑动，长按。。。。。。还有种叫做边缘侧滑，有四个方向，只处于屏幕边缘滑动时才会触发

-(void)screenEdge :(UIScreenEdgePanGestureRecognizer *)screenEdge

{

//    CGPoint point = [screenEdge translationInView:screenEdge.view];

//

//    screenEdge.view.transform = CGAffineTransformTranslate(screenEdge.view.transform, point.x, 0);

//

//    [screenEdge setTranslation:CGPointZero inView:screenEdge.view];

NSLog(@"//创建屏幕边缘轻扫");

}

- (void)viewDidLoad {

[super viewDidLoad];

//创建屏幕边缘轻扫手势

UIScreenEdgePanGestureRecognizer *screenedgepan = [[UIScreenEdgePanGestureRecognizer alloc]initWithTarget:self action:@selector(screenEdge:)];

screenedgepan.edges = UIRectEdgeLeft;

[self.view addGestureRecognizer:screenedgepan];

}