pragma mark - 滑动手势

//滑动手势

• (void) handlePan: (UIPanGestureRecognizer *)rec{

  CGPoint point = [rec translationInView:self.view];

  scalef = (point.x*speedf+scalef);

  //根据视图位置判断是左滑还是右边滑动
  if (rec.view.frame.origin.x>=0){
  rec.view.center = CGPointMake(rec.view.center.x + point.x*speedf,rec.view.center.y);
  rec.view.transform = CGAffineTransformScale(CGAffineTransformIdentity,1-scalef/1000,1-scalef/1000);
  [rec setTranslation:CGPointMake(0, 0) inView:self.view];

    righControl.view.hidden = YES;
    leftControl.view.hidden = NO;
  

  }
  else
  {
  rec.view.center = CGPointMake(rec.view.center.x + point.x*speedf,rec.view.center.y);
  rec.view.transform = CGAffineTransformScale(CGAffineTransformIdentity,1+scalef/1000,1+scalef/1000);
  [rec setTranslation:CGPointMake(0, 0) inView:self.view];

    righControl.view.hidden = NO;
    leftControl.view.hidden = YES;
}



//手势结束后修正位置
if (rec.state == UIGestureRecognizerStateEnded) {
    if (scalef>140*speedf){
        [self showLeftView];
    }
    else if (scalef<-140*speedf) {
        [self showRighView];        }
    else
    {
        [self showMainView];
        scalef = 0;
    }
}

}