雙擊UITableViewCell

Question

我想要一個水龍頭以及雙擊一個UITableViewCell。我爲UITableview創建了一個customDataSource。

我該如何做到這一點？

Answer 1

正確的方式做，這是添加你UITapGestureRecognizer上的tableView：

UITapGestureRecognizer* doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTap:)]; 
doubleTap.numberOfTapsRequired = 2; 
doubleTap.numberOfTouchesRequired = 1; 
[self.tableView addGestureRecognizer:doubleTap]; 

UITapGestureRecognizer* singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap:)]; 
singleTap.numberOfTapsRequired = 1; 
singleTap.numberOfTouchesRequired = 1; 
[singleTap requireGestureRecognizerToFail:doubleTap]; 
[self.tableView addGestureRecognizer:singleTap]; 

然後在你的回調方法你找到像這樣的小區：

-(void)singleTap:(UITapGestureRecognizer*)tap 
{ 
    if (UIGestureRecognizerStateEnded == tap.state) 
    { 
     CGPoint p = [tap locationInView:tap.view]; 
     NSIndexPath* indexPath = [_tableView indexPathForRowAtPoint:p]; 
     UITableViewCell* cell = [_tableView cellForRowAtIndexPath:indexPath]; 
     // Do your stuff 
    } 
} 

Answer 2

我已經實現了這通過將以下內容添加到您的手勢識別器中，但我發現單擊時會有輕微的延遲。

[tapRecognizer setDelaysTouchesBegan:YES]; 
[tapRecognizer setCancelsTouchesInView:YES]; 

Answer 3

你忘了[doubleTap release];

UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTap:)]; 

doubleTap.numberOfTapsRequired = 2; 

doubleTap.numberOfTouchesRequired = 1; 

[cell addGestureRecognizer:doubleTap]; 

[doubleTap release]; 

Answer 4

您需要有這條線才能分開單擊和雙擊。 [singleTap requireGestureRecognizerToFail：doubleTap];這是示例代碼。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    // After cell initialized code 
    //... 
    //... 

    UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTap:)]; 
    doubleTap.numberOfTapsRequired = 2; 

    UITapGestureRecognizer* singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doSingleTap:)]; 
    singleTap.numberOfTapsRequired = 1; 
    [singleTap requireGestureRecognizerToFail:doDoubleTap]; 

    [cell addGestureRecognizer:singleTap]; 
    [cell addGestureRecognizer:doubleTap]; 
    return cell; 
} 

-(void)doubleTap:(UITapGestureRecognizer*)tap 
{ 
    NSLog(@"Double Taps"); 

    CGPoint point = [tap locationInView:self.tableView]; 
    NSIndexPath* indexPath = [self.tableView indexPathForRowAtPoint: point]; 
    UITableViewCell* cell = [self.tableView cellForRowAtIndexPath:indexPath]; 
    // do your stuff. 
    // ... 
} 

-(void)singleTap:(UITapGestureRecognizer*)tap 
{ 
    NSLog(@"Single Tap"); 
    CGPoint point = [tap locationInView:self.tableView]; 
    NSIndexPath* indexPath = [self.tableView indexPathForRowAtPoint:point]; 
    UITableViewCell* cell = [self.tableView cellForRowAtIndexPath:indexPath]; 

    // Do you stuff with index path or cell here. 
    // ... 

}