大佬教程收集整理的这篇文章主要介绍了ios – 在KeyboardWillShow中同步动画KeyboardWillHide – 硬件键盘和虚拟键盘同时,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
所以我有一个应用程序的聊天部分,我正在同步的键盘的动画隐藏和显示与上升和下降的聊天输入.
这是我使用的代码:
显示:
- (void) keyboardWillShow:(Nsnotification *)note { NSDictionary *keyboardAnimationDetail = [note userInfo]; UIViewAnimationCurve animationCurve = [keyboardAnimationDetail[UIKeyboardAnimationCurveUserInfoKey] IntegerValue]; CGFloat duration = [keyboardAnimationDetail[UIKeyboardAnimationDurationUserInfoKey] floatValue]; NSValue* keyboardFrameBegin = [keyboardAnimationDetail valueForKey:UIKeyboardFrameBeginUserInfoKey]; CGRect keyboardFrameBeginRect = [keyboardFrameBegin CGRectValue]; // working for hardware keyboard //UIViewAnimationOptions options = (UIViewAnimationOptions)animationCurve; // working for virtual keyboard UIViewAnimationOptions options = (animationCurve << 16); [UIView animateWithDuration:duration delay:0.0 options:options animations:^{ textView.frame = CGRectMake(0,self.view.bounds.size.height - keyboardFrameBeginRect.size.height,self.view.bounds.size.width,-40); } completion:nil]; }
隐藏:
- (void) keyboardWillHide:(Nsnotification *)note { NSDictionary *keyboardAnimationDetail = [note userInfo]; UIViewAnimationCurve animationCurve = [keyboardAnimationDetail[UIKeyboardAnimationCurveUserInfoKey] IntegerValue]; CGFloat duration = [keyboardAnimationDetail[UIKeyboardAnimationDurationUserInfoKey] floatValue]; // hardware keyboard //UIViewAnimationOptions options = (UIViewAnimationOptions)animationCurve; // virtual keyboard UIViewAnimationOptions options = (animationCurve << 16); [UIView animateWithDuration:duration delay:0.0 options:options animations:^{ textView.frame = CGRectMake(0,self.view.bounds.size.height,-40); } completion:nil]; }
这对虚拟键盘非常有用,但如果keyboardWillShow:或keyboardWillHide:由于断开或连接硬件键盘而被调用,则动画滞后.我可以通过更改UIViewAnimationOptions来解决这个问题
更换:
// Works with virtual keyboard UIViewAnimationOptions options = (animationCurve << 16);
附:
// working for firstResponder keyboard UIViewAnimationOptions options = (UIViewAnimationOptions)animationCurve;
但是这样,现在virtualKeyboard的动画滞后了
我意识到硬件键盘动画不是很常见,这可能不是最重要的问题,但我喜欢所有事情只是工作!
例子
虚拟键盘w /(animationCurve<< 16) - 工作 VirtualKeyboard w /(UIViewAnimationOptions)animationCurve – BROKEN 硬件键盘/(animationCurve<< 16) - BROKEN HardwareKeyboard w /(UIViewAnimationOptions)animationCurve – WORKING 笔记 模拟器中的硬件键盘cmd shft k 是的,这可以在真实设备上复制. 如果你想要它,这里是我的代码的其余部分,仅用于复制目的 添加文字视图
textView = [UITextView new]; textView.layer.borderWidth = 10; textView.layer.borderColor = [UIColor blackColor].CGColor; textView.frame = CGRectMake(0,-40); [self.view addSubview:textView]; UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc]init]; [tap addTarget:self action:@SELEctor(handleTap:)]; [self.view addGestureRecognizer:tap]; // OBSERVE KEYBOARD [[NsnotificationCenter defaultCenter] addObserver:self SELEctor:@SELEctor(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; [[NsnotificationCenter defaultCenter] addObserver:self SELEctor:@SELEctor(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
手柄口袋
- (void) handleTap:(UITapGestureRecognizer *)tap { NSLog(@"tapped"); [textView resignFirstResponder]; }
问题:
NSTimeInterval duration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue]; UIViewAnimationCurve curve = [note.userInfo[UIKeyboardAnimationCurveUserInfoKey] IntegerValue]; [UIView beginAnimations:@"SomeAnimationID" context:NULL]; [UIView setAnimationCurve:curve]; [UIView setAnimationDuration:duration]; // Animation code [UIView commitAnimations];
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