获取iOS设备键盘高度和动画弹出时间
添加监听通知
如代码所示，监听通知，并添加方法
- (void)viewDidLoad {
[super viewDidLoad];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
}
实现通知响应方法
注意获取的是 UIKeyboardFrameEndUserInfoKey ,这个是变化后的值，如果获取到的值不是你想要的，变化一下对应的 KEY 直到取到你想要的值。
- (void)keyboardWillShow:(NSNotification *)notification
{
//获取键盘的高度
NSDictionary *userInfo = [notification userInfo];
NSValue *value = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyboardRect = [value CGRectValue];
int height = keyboardRect.size.height;
//获取动画时间
double animationDuration = [[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
//处理自己的业务逻辑
[self.infoView handleKeyboardWillShowWithHeight:height Duration:animationDuration];
}
- (void)keyboardWillHide:(NSNotification *)notification
{
//获取键盘的高度
NSDictionary *userInfo = [notification userInfo];
NSValue *value = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyboardRect = [value CGRectValue];
int height = keyboardRect.size.height;
//获取动画时间
double animationDuration = [[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
//处理自己的业务逻辑
[self.infoView handleKeyboardWillHideWithHeight:height Duration:animationDuration];
}
