潘姿手勢已經結束的位置

Question

我想擁有它，所以當它的平底鍋手勢結束時，檢查結束位置是否在某個區域內，在我的情況下一個正方形。我有下面的代碼，它更少的工作，但由於某種原因，即使平底鍋在廣場結束，它是說它不是。

-(void)panHandler:(UIPanGestureRecognizer*)recognizer{ 
CGPoint translation = [recognizer translationInView:self.view]; 
switch (recognizer.state){ 
    case UIGestureRecognizerStateBegan: 
     _stickImage.center = CGPointMake(_stickImage.center.x + translation.x, _stickImage.center.y + translation.y); 
     break; 

    case UIGestureRecognizerStateChanged: 
     _stickImage.center = CGPointMake(_stickImage.center.x + translation.x, _stickImage.center.y + translation.y); 
     [recognizer setTranslation:CGPointMake(0, 0) inView:self.view]; 
     break; 

    case UIGestureRecognizerStateEnded: 
     NSLog(@"Ended"); 
     if(translation.x > _rectView.frame.origin.x && translation.x < (_rectView.frame.origin.x + _rectView.frame.size.width)){ 
      if(translation.y > _rectView.frame.origin.y && translation.y < (_rectView.frame.origin.y + _rectView.frame.size.height)){ 
       NSLog(@"In the grid!"); 
      } 
     } 
     else{ 
      NSLog(@"out of the grid"); 
     } 

     break; 

    default: 
     break; 
} 

}

我可以使用翻譯x和y的位置像我一樣？或者我會如何找到平底鍋的位置是否在廣場？任何幫助將非常感謝謝謝！

Answer 1

translationInView:不給觸摸的位置，它會告訴你觸摸了多遠，因爲到setTranslation:inView:

最後一次通話，你想要的是locationInView:

CGPoint location = [recognizer locationInView:recognizer.view]; 

if(CGRectContainsPoint(_rectView.frame, location)){ 
    NSLog(@"Inside!"); 
}