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先来两个gif图
侧滑gifoc和swift.gif
侧滑gifoc和swift3.gif
这个侧滑抽屉Demo中包含了Swift版本和OC版本。
文件目录
文件.png
部分代码
部分Swift
/**
侧滑
*/
func slideToLeft() {
self.updateContransWithTransX(self.slideTranlationX, animated: true)
}
/**
返回初始样式
*/
func slideBack() {
self.updateContransWithTransX(0, animated: true)
}
func updateContransWithTransX(tx: CGFloat, animated: Bool) {
self.trans = tx
if animated == true { // 有动画
UIView.animateWithDuration(NSTimeInterval(kAnimationDuration), animations: {
self.mainVc.view.x = self.trans
self.mainVc.view.alpha = (kScreenWidth - self.trans * 0.5 ) / kScreenWidth * 1.0
let scale: CGFloat = 1.0 - 0.1 * self.trans / CGFloat(self.slideTranlationX)
self.leftVc.view.transform = CGAffineTransformMakeScale(scale, scale)
}, completion: { (_) in
if self.trans == self.slideTranlationX {
self.addCover()
} else {
var button = self.mainVc.view.viewWithTag(101) as? UIButton
button?.removeFromSuperview()
button = nil
}
})
} else { // 无动画
self.mainVc.view.x = self.trans
self.mainVc.view.alpha = (kScreenWidth - self.trans * 0.5 ) / kScreenWidth * 1.0
let scale: CGFloat = 1.0 - 0.1 * self.trans / CGFloat(self.slideTranlationX)
self.leftVc.view.transform = CGAffineTransformMakeScale(scale, scale)
if self.trans == self.slideTranlationX {
self.addCover()
} else {
var button = self.mainVc.view.viewWithTag(101) as? UIButton
button?.removeFromSuperview()
button = nil
}
}
}
/**
滑动手势响应
*/
func panGest(gest: UIPanGestureRecognizer) {
if self.mainVc.view.x == self.slideTranlationX {
let point = gest.locationInView(view)
if CGRectContainsPoint(CGRectMake(0, 0, self.slideTranlationX, kScreenHeight), point) {
return ;
}
}
if gest.view!.isEqual(self.view) == false {
return ;
}
if gest.state == .Began || gest.state == .Changed {
let translation = gest.translationInView(view)
if translation.x < 0 {
// 左滑
if self.mainVc.view.x >= 0 {
self.trans += translation.x
if self.trans < kMainViewOriginTransX {
self.trans = kMainViewOriginTransX
}
self.updateContransWithTransX(self.trans, animated: false)
}
} else {
// 右滑
self.trans += translation.x
if self.trans > self.slideTranlationX {
self.trans = self.slideTranlationX
}
self.updateContransWithTransX(self.trans, animated: false)
}
gest.setTranslation(CGPointZero, inView: view)
}
if gest.state == .Ended {
if self.trans > self.slideTranlationX * 0.5 && trans <= self.slideTranlationX {
self.trans = self.slideTranlationX
self.updateContransWithTransX(self.trans, animated: true)
} else if (self.trans <= self.slideTranlationX * 0.5) {
self.trans = kMainViewOriginTransX
self.updateContransWithTransX(self.trans, animated: true)
}
}
}
部分OC代码
/**
* 打开抽屉
*/
- (void)slideToLeft {
[self updateContrantsWithTransX:_slideTranslationX animated:YES];
}
/**
* 返回初始样式
*/
- (void)slideBack {
[self updateContrantsWithTransX:0 animated:YES];
}
// 侧滑
- (void)updateContrantsWithTransX:(CGFloat)tX
animated:(BOOL)animated {
transX = tX;
if (animated) {
[UIView animateWithDuration:kAnimationDuration animations:^{
[self.mainV.view setX:transX];
self.mainV.view.alpha = (kScreenWidth - transX * 0.5) / kScreenWidth * 1.0f;
CGFloat scale = 1 - 0.10 * transX / _slideTranslationX;
self.leftV.view.transform = CGAffineTransformMakeScale(scale, scale);
} completion:^(BOOL finished) {
if (finished) {
if (transX == _slideTranslationX) {
[self addCover];
} else {
UIButton *button = (UIButton *)[self.mainV.view viewWithTag:101];
[button removeFromSuperview];
button = nil;
}
}
}];
} else {
[self.mainV.view setX:transX];
self.mainV.view.alpha = (kScreenWidth - transX * 0.5) / kScreenWidth * 1.0f;
CGFloat scale = 1 - 0.10 * transX / _slideTranslationX;
self.leftV.view.transform = CGAffineTransformMakeScale(scale, scale);
if (transX == _slideTranslationX) {
[self addCover];
} else {
UIButton *button = (UIButton *)[self.mainV.view viewWithTag:101];
[button removeFromSuperview];
button = nil;
}
}
}
int transX = 0;
- (void)panGest:(UIPanGestureRecognizer *)gest {
if (self.mainV.view.x == _slideTranslationX) {
CGPoint point = [gest locationInView:self.view];
if (CGRectContainsPoint(CGRectMake(0, 0, _slideTranslationX, kScreenHeight), point)) {
return ;
}
}
if (![gest.view isEqual:self.view]) {
return ;
}
if (gest.state == UIGestureRecognizerStateBegan || gest.state == UIGestureRecognizerStateChanged) {
CGPoint translation = [gest translationInView:self.view];
if (translation.x < 0) { // 左滑
if (self.mainV.view.x >= 0) {
transX += translation.x;
if (transX < kMainViewOriginTransX) {
transX = kMainViewOriginTransX;
}
[self updateContrantsWithTransX:transX animated:NO];
}
} else { // 右滑
transX +=translation.x;
if (transX > _slideTranslationX) {
transX = _slideTranslationX;
}
[self updateContrantsWithTransX:transX animated:NO];
}
// 重置滑动距离
[gest setTranslation:CGPointZero inView:self.view];
}
if (gest.state == UIGestureRecognizerStateEnded) {
if (transX > _slideTranslationX * 0.5 && transX <= _slideTranslationX) {
transX = _slideTranslationX;
[self updateContrantsWithTransX:transX animated:YES];
} else if (transX <= _slideTranslationX * 0.5) {
transX = kMainViewOriginTransX;
[self updateContrantsWithTransX:transX animated:YES];
}
}
}
