从Objective-C到Swift的完井区块
我正在尝试在Swift中转换ViewWillAspect函数中的此completionBlock:从Objective-C到Swift的完井区块,objective-c,swift,Objective C,Swift,我正在尝试在Swift中转换ViewWillAspect函数中的此completionBlock: KeyboardHelperCompletionBlock adjustCenterUp = ^(NSNotification *notification) { [UIView animateWithDuration:0.35f animations:^{ self.popupVC.view.centerY = self.view.centerY - [KeyboardHe
KeyboardHelperCompletionBlock adjustCenterUp = ^(NSNotification *notification) {
[UIView animateWithDuration:0.35f animations:^{
self.popupVC.view.centerY = self.view.centerY - [KeyboardHelper keyboardHeight] / 2;
}];
};
我有动画部分:
UIView.animate(withDuration: 0.35, animations: {
self.popupVC?.view.center.y = self.view.centerY() - KeyboardHelper.keyboardHeight()/2
})
但不是调整CenterUp定义。
谢谢大家! 简单地说:
let adjustCenterUp: KeyboardHelperCompletionBlock = { notification in
UIView.animate(withDuration: 0.35) {
self.popupVC?.view.center.y = self.view.centerY() - KeyboardHelper.keyboardHeight() / 2
}
}
但您可能应该捕获自我
:
let adjustCenterUp: KeyboardHelperCompletionBlock = { [weak self] _ in
guard let `self` = self else { return }
UIView.animate(withDuration: 0.35) {
self.popupVC?.view.center.y = self.view.centerY() - KeyboardHelper.keyboardHeight() / 2
}
}