Ios 如何从起始点和滚动点查找端点坐标
我必须从起点和移动点找到端点 我正在制作动画,当用户拖动视图时,我需要移动视图,然后我必须将其移出屏幕并恢复到原点 现在我已经使用了UISweepGestureRecognitor来检测移动中的滑动。下面是代码Ios 如何从起始点和滚动点查找端点坐标,ios,endpoint,uiswipegesturerecognizer,Ios,Endpoint,Uiswipegesturerecognizer,我必须从起点和移动点找到端点 我正在制作动画,当用户拖动视图时,我需要移动视图,然后我必须将其移出屏幕并恢复到原点 现在我已经使用了UISweepGestureRecognitor来检测移动中的滑动。下面是代码 UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)]; UISwipeGesture
UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
UISwipeGestureRecognizer *swipeUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
UISwipeGestureRecognizer *swipeDown = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
// Setting the swipe direction.
[swipeLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
[swipeRight setDirection:UISwipeGestureRecognizerDirectionRight];
[swipeUp setDirection:UISwipeGestureRecognizerDirectionUp];
[swipeDown setDirection:UISwipeGestureRecognizerDirectionDown];
// Adding the swipe gesture on image view
[_view1 addGestureRecognizer:swipeLeft];
[_view1 addGestureRecognizer:swipeRight];
[_view1 addGestureRecognizer:swipeUp];
[_view1 addGestureRecognizer:swipeDown];
处理刷卡
- (void)handleSwipe:(UISwipeGestureRecognizer *)swipe {
CGPoint movedPoint = [swipe locationInView:swipe.view];
if (swipe.direction == UISwipeGestureRecognizerDirectionLeft) {
NSLog(@"Left Swipe");
CGPoint startPoint = _view1.frame.origin;
//Diffence Moved
float movedDiffence_X = startPoint.x - movedPoint.x;
float movedDiffence_Y = startPoint.y - movedPoint.y;
//How can I find END POINT BASED ON THIS DATA
[UIView animateWithDuration:1 animations:^{
_view1.center = CGPointMake(movedDiffence_X *3,movedDiffence_Y *3 );
_view1.transform = CGAffineTransformMakeRotation(-0.86);
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.8 animations:^{
_view1.center = CGPointMake(84, 240);
_view1.transform = CGAffineTransformMakeRotation(0.36);
} completion:^(BOOL finished) {
}];
}];
}
if (swipe.direction == UISwipeGestureRecognizerDirectionRight) {
NSLog(@"Right Swipe");
CGPoint startPoint = _view1.frame.origin;
//Diffence Moved
float movedDiffence_X = startPoint.x - movedPoint.x;
float movedDiffence_Y = startPoint.y - movedPoint.y;
//How can I find
[UIView animateWithDuration:1 animations:^{
_view1.center = CGPointMake(movedDiffence_X *3,movedDiffence_Y *3 );
_view1.transform = CGAffineTransformMakeRotation(-0.86);
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.8 animations:^{
_view1.center = CGPointMake(84, 240);
_view1.transform = CGAffineTransformMakeRotation(0.36);
} completion:^(BOOL finished) {
}];
}];
}
if (swipe.direction == UISwipeGestureRecognizerDirectionUp) {
NSLog(@"Up Swipe");
CGPoint startPoint = _view1.frame.origin;
//Diffence Moved
float movedDiffence_X = startPoint.x - movedPoint.x;
float movedDiffence_Y = startPoint.y - movedPoint.y;
//How can I find
[UIView animateWithDuration:1 animations:^{
_view1.center = CGPointMake(movedDiffence_X *3,movedDiffence_Y *3 );
_view1.transform = CGAffineTransformMakeRotation(-0.86);
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.8 animations:^{
_view1.center = CGPointMake(84, 240);
_view1.transform = CGAffineTransformMakeRotation(0.36);
} completion:^(BOOL finished) {
}];
}];
}
if (swipe.direction == UISwipeGestureRecognizerDirectionDown) {
NSLog(@"Down Swipe");
CGPoint startPoint = _view1.frame.origin;
//Diffence Moved
float movedDiffence_X = startPoint.x - movedPoint.x;
float movedDiffence_Y = startPoint.y - movedPoint.y;
//How can I find
[UIView animateWithDuration:1 animations:^{
_view1.center = CGPointMake(movedDiffence_X *3,movedDiffence_Y *3 );
_view1.transform = CGAffineTransformMakeRotation(-0.86);
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.8 animations:^{
_view1.center = CGPointMake(84, 240);
_view1.transform = CGAffineTransformMakeRotation(0.36);
} completion:^(BOOL finished) {
}];
}];
}
}
当我滑动1号视图时,我可以在SwipeHandler(HandleSweep)方法中获得移动点
所以我还可以检测到刷卡的方向。但我的问题是,我必须通过屏幕外的第一视图。为此,我必须找到端点
那么,如何从起点和移动点找到端点呢?这里是端点计算的链接