Question

我有一个UIVIView, 在我使用 UILONPressGressGressRecognize 然后使用 UIPanGestureRecognize 之前, 我在哪里使用 UIPanGestureRecognize 。对于 UIPGestureRecognize 我得到关于 UILongPressGressDretureRecognize的压力的信息, 但我的应用程序不使用布林, 即使我强制使用, 这总是假的。我该怎么做?

 -(IBAction)longGesture:(UILongPressGestureRecognizer *)gestureRecognizer{


   if(fromRiga ==0){
    if ([gestureRecognizer state]==UIGestureRecognizerStateBegan){
        self.inLongPress = YES;
        self.view.backgroundColor =[UIColor darkGrayColor];
        gestureRecognizer.allowableMovement=200;

      }else if([gestureRecognizer state]==UIGestureRecognizerStateEnded){
        self.inLongPress = NO;
      }
}

 - (IBAction)panGesture:(UIPanGestureRecognizer *)gestureRecognizer
  {
    NSLog(@"inLongPress is %@", self.inLongPress ? @"YES": @"NO");
  }

提前感谢

Answer 1

当您触摸视图并检查此刻之后的动向时, Pan 识别器会立即触发。长的按识别器总是在很久之后触发, 然后( 在 < em > long < / em > 周期结束后) 显示器就会触发。我怀疑, < code > panGesture 总是在 < code > longGestur < / code > 之前被调用。也许 Pan 识别器会完全取消长的按识别器。

您应该通过添加更多 NSLog 语句来检查会发生什么。


-(IBAction)longGesture:(UILongPressGestureRecognizer *)gestureRecognizer {
    NSLog(@"Long gesture");

    if (fromRiga == 0){
        if ([gestureRecognizer state] == UIGestureRecognizerStateBegan){
            self.inLongPress = YES;
            self.view.backgroundColor =[UIColor darkGrayColor];
            gestureRecognizer.allowableMovement=200;

            NSLog(@"Long gesture began, self.iLongPress = %@", self.iLongPress ? @"YES" : @"NO");
        } else if([gestureRecognizer state] == UIGestureRecognizerStateEnded) {
            self.inLongPress = NO;
            NSLog(@"Long gesture ended, self.iLongPress = %@", self.iLongPress ? @"YES" : @"NO");
        }
    }
}

- (IBAction)panGesture:(UIPanGestureRecognizer *)gestureRecognizer {
    NSLog(@"Pan gesture, self.iLongPress = %@", self.iLongPress ? @"YES" : @"NO");
}

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