当你使用这个第三方时 , 有时偶尔会发现失效
当时我在UITableviewCell中添加了一个TextField, 本来IQKeyboardManager是支持UITableview中的键盘处理问题的,但是一开始却想错了方向, 认为cell中添加控件可能层级较深, 框架本身并不支持
所以下面说下解决的几种方式:
一: 先查看
- (void)viewWillAppear:(BOOL)animated
中, 是否有写了[super viewWillAppear:animated];
如果这个调用父类的方法没有写,那么IQKeyboardManager在调用父类控件做位移时就没法调到,那么你的键盘出现时, UITableviewController就不能往上移动
二: 监听键盘弹出
1.首先在- (void)viewDidLoad中调用对键盘实现监听
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
2.然后调用通知的方法:
#pragma mark 键盘出现
-(void)keyboardWillShow:(NSNotification *)note
{
CGRect keyBoardRect=[note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
self.tableView.contentInset = UIEdgeInsetsMake(0, 0, keyBoardRect.size.height, 0);
}
#pragma mark 键盘消失
-(void)keyboardWillHide:(NSNotification *)note
{
self.tableView.contentInset = UIEdgeInsetsZero;
}
三: 按照苹果官方文档实现
思路也是调用通知,但是方法有异, 具体如下:
1.首先在- (void)viewDidLoad中调用对键盘实现监听
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWasShown:)
name:UIKeyboardDidShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillBeHidden:)
name:UIKeyboardWillHideNotification object:nil];
2.然后调用通知的方法:
// Called when the UIKeyboardDidShowNotification is sent.
- (void)keyboardWasShown:(NSNotification*)aNotification
{
NSDictionary* info = [aNotification userInfo];
CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, kbSize.height, 0.0);
self.tableView.contentInset = contentInsets;
self.tableView.scrollIndicatorInsets = contentInsets;
// If active text field is hidden by keyboard, scroll it so it's visible
// Your app might not need or want this behavior.
CGRect aRect = self.view.frame;
aRect.size.height -= kbSize.height;
if (!CGRectContainsPoint(aRect, self.InvestInfocell.activityNumber.frame.origin) ) {
[self.tableView scrollRectToVisible:self.InvestInfocell.activityNumber.frame animated:YES];
}
}
// Called when the UIKeyboardWillHideNotification is sent
- (void)keyboardWillBeHidden:(NSNotification*)aNotification
{
UIEdgeInsets contentInsets = UIEdgeInsetsZero;
self.tableView.contentInset = contentInsets;
self.tableView.scrollIndicatorInsets = contentInsets;
}
以上接种方式,应该可以解决键盘遮挡问题
