两个手指UISwipeGestureRecognizer与UITableView

Question

我正在寻找向UITableView添加一个手势识别器，它使用两个手指向上或向下，就像Twitterific用于切换状态栏一样。

这是我的代码

[self.tableView setMultipleTouchEnabled:YES];
[self.tableView.panGestureRecognizer setMaximumNumberOfTouches:1];

UISwipeGestureRecognizer *swipeUpGesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(doubleSwipeUp)];
[swipeUpGesture setNumberOfTouchesRequired:2];
[swipeUpGesture setDirection:UISwipeGestureRecognizerDirectionUp];
[swipeUpGesture setDelaysTouchesBegan:YES];
[self.tableView addGestureRecognizer:swipeUpGesture];

UISwipeGestureRecognizer *swipeDownGesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(doubleSwipeDown)];
[swipeDownGesture setNumberOfTouchesRequired:2];
[swipeDownGesture setDirection:UISwipeGestureRecognizerDirectionDown];
[swipeUpGesture setDelaysTouchesBegan:YES];
[self.tableView addGestureRecognizer:swipeDownGesture];

我在viewDidLoad中调用它，并且没有调用doubleSwipeUp。

我该怎么办？

Answer 1

首先，我会检查以确保self.tableView.multipleTouchEnabled设置为YES。

如果这没有用，那么可以尝试设置swipeUpGesture.delaysTouchesBegan = YES;