作品链接：
//www.greatytc.com/users/1e0f5e6f73f6/top_articles
- 使用通知的方法
1.监听键盘通知
- (void)viewDidLoad {
[super viewDidLoad];
// 监听键盘通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];
}
2.取消通知
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
3.键盘处理
#pragma mark - 键盘处理
- (void)keyboardWillChangeFrame:(NSNotification *)note {
// 取出键盘最终的frame
CGRect rect = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
// 取出键盘弹出需要花费的时间
double duration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
// 修改transform
[UIView animateWithDuration:duration animations:^{
// 平移多少 rect.origin.y 键盘高度
CGFloat ty = [UIScreen mainScreen].bounds.size.height - rect.origin.y;
self.view.transform = CGAffineTransformMakeTranslation(0, - ty);
}];
}
4.退出键盘
#pragma mark - <UITableViewDelegate>
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
// 退出键盘
[self.view endEditing:YES];
}
