我正在尝试制作一款游戏，该游戏可以识别某人何时按住他/她的手指并在按住时移动玩家。最重要的是，我正在尝试创建一个后退按钮以返回主屏幕。 这是我对这两件事的代码:
- (void) didMoveToView:(SKView *)view {
holdingFinger = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPress:)];
holdingFinger.minimumPressDuration = 0;
holdingFinger.numberOfTapsRequired = 0;
holdingFinger.numberOfTouchesRequired = 1;
holdingFinger.allowableMovement = 100;
[view addGestureRecognizer:holdingFinger];
changeScene = [UIButton buttonWithType:UIButtonTypeSystem];
[changeScene addTarget:self action:@selector(changeScene) forControlEvents:UIControlEventTouchUpInside];
[changeScene setTitle:@"Home" forState:UIControlStateNormal];
changeScene.backgroundColor = [UIColor whiteColor];
changeScene.frame = CGRectMake(410, 0, 70, 30);
[self.view addSubview:changeScene];}
- (void)handleLongPress:(UILongPressGestureRecognizer*)gestureRecognizer {
if (gestureRecognizer.state == UIGestureRecognizerStateBegan) {
//NSLog(@"isHoldingDown = YES");
isHoldingDown = YES;
} else if (gestureRecognizer.state == UIGestureRecognizerStateEnded) {
//NSLog(@"isHoldingDown = NO");
isHoldingDown = NO;
}}
- (void) changeScene {
[changeScene removeFromSuperview];
SKScene* nextScene = [[ATOpenScene alloc] initWithSize:self.size];
SKTransition* transition = [SKTransition doorsOpenVerticalWithDuration:0.5];
[self.view presentScene:nextScene transition:transition];
这两个东西都按我希望的那样工作，但是，当我把它们都放进去时，我无法按下按钮。我在这里犯了一个简单的修复/粗心的错误吗？如果是这样，那会是什么？感谢您的帮助。
最佳答案
你的 holdingFinger.minimumPressDuration = 0;应该大于 0 才能使用敲击手势
关于ios - 由于 UILongPress，当我触摸它时 UIButton 未被识别，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20915389/