我想在纵向和横向模式下创建一个“滑动手势向上和向下”不同的动作，但我是新手我不能这样做，你能帮我吗？
这是我的代码：
-(void)swipeToggle:(id)sender {
if ([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeLeft || [[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeRight) {
if (UISwipeGestureRecognizerDirectionUp){
NSLog(@"if gesture up - LS");
} else if (UISwipeGestureRecognizerDirectionDown) {
NSLog(@"else if gesture down - LS");
}
}
else if ([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationPortrait) {
if (UISwipeGestureRecognizerDirectionDown) {
NSLog(@"if gesture down - PT");
}
else if (UISwipeGestureRecognizerDirectionUp) {
NSLog(@"else if gesture up - PT");
}
}
}
答案 0 :(得分：0)
您需要将此添加到您的视图中：
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UISwipeGestureRecognizer *swipe1 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeToggle:)];
swipe1.direction = UISwipeGestureRecognizerDirectionUp ;
[self.view addGestureRecognizer:swipe1];
[swipe1 release];
UISwipeGestureRecognizer *swipe2 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeToggle:)];
swipe2.direction = UISwipeGestureRecognizerDirectionDown ;
[self.view addGestureRecognizer:swipe2];
[swipe2 release];
}
然后你的切换：
-(void)swipeToggle:(UISwipeGestureRecognizer *)sender
{
if ([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeLeft || [[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeRight)
{
if (sender.direction == UISwipeGestureRecognizerDirectionUp){
NSLog(@"if gesture up - LS");
} else if (sender.direction == UISwipeGestureRecognizerDirectionDown) {
NSLog(@"else if gesture down - LS");
}
}
else if ([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationPortrait || [[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationPortraitUpsideDown)
{
if (sender.direction == UISwipeGestureRecognizerDirectionDown)
{
NSLog(@"if gesture down - PT");
}
else if ( sender.direction == UISwipeGestureRecognizerDirectionUp)
{
NSLog(@"else if gesture up - PT");
}
}
}
不幸的是，您需要创建2个滑动手势识别器，因为设置swipe.direction = UISwipeGestureRecognizerDirectionDown | UISwipeGestureRecognizerDirectionUp;
将创建按位操作，并且不会检测到方向。