在自动布局中隐藏不断增长的 UItextview 的键盘。如何克服这个？

Question

我需要在我的应用程序中实现聊天功能。在那里我有一个如图所示的 InputView。

Image 1

Image 2

。

InputView 是带有左右按钮和文本视图的 blue Coloured View。

单击文本字段时，此输入视图应该向上滚动并且键盘应该出现。这个文本视图是一个不断增长的文本字段，里面有很多文本。
但是当我在文本字段中键入多行时。 InputView 和 Textfield 都在增长，但它稍微隐藏在键盘下面，如下所示如何克服它？？？

Image 3

**

And I used this code

**.

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    [self registerForKeyboardNotifications];
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    [self deregisterFromKeyboardNotifications];
}

- (void)registerForKeyboardNotifications
{
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWasShown:)
                                                 name:UIKeyboardDidShowNotification object:nil];

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillBeHidden:)
                                                 name:UIKeyboardWillHideNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillBeHidden:)
                                                 name:UIKeyboardDidHideNotification object:nil];


}
- (void)deregisterFromKeyboardNotifications {
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:UIKeyboardDidHideNotification
                                                  object:nil];
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:UIKeyboardWillHideNotification
                                                  object:nil];
}
- (void)keyboardWasShown:(NSNotification*)aNotification {

    NSDictionary* info = [aNotification userInfo];
    CGSize kbSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size;

    UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, kbSize.height, 0.0);
    self.scrollView.contentInset = contentInsets;
    self.scrollView.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.inputView.frame.origin) ) {
        [self.scrollView scrollRectToVisible:self.inputView.frame animated:YES];
    }

    [self.view layoutIfNeeded];
}

- (void)keyboardWillBeHidden:(NSNotification*)aNotification
{
    UIEdgeInsets contentInsets = UIEdgeInsetsZero;
    self.scrollView.contentInset = contentInsets;
    self.scrollView.scrollIndicatorInsets = contentInsets;
    [self.view layoutIfNeeded];
}

- (void)textViewDidChange:(UITextView *)textView {
    CGSize sizeThatShouldFitTheContent = [textView sizeThatFits:textView.frame.size];
    //chatView_heightConstraint is the inputview height
    self.chatView_heightConstraint.constant = MIN(sizeThatShouldFitTheContent.height + 8, 87);

    CGRect _f = self.textView.frame;
    _f.size.height = MIN( self.textView.contentSize.height, 79.0);
    self.textView.frame = _f;
}

Answer 1

我终于解决了这个问题...在滚动视图之后添加了一个视图，技巧成功了！！！ ScrollView --> UIView --> TableView and InputView

在自动布局中隐藏不断增长的 UItextview 的键盘。如何克服这个？

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