inputAccessoryView 出现键盘时不调用

Posted 2023-03-14

【中文标题】inputAccessoryView 出现键盘时不调用

【英文标题】：inputAccessoryView Not calling when keyboard appearing

【发布时间】：2015-05-11 09:38:05

【问题描述】：

我已将InputAccessoryView添加到我的键盘消失。它炒得很好。但在某些ViewController 中它没有出现。即使那个方法也不会调用。

我有一个按钮。当我点击我的文本字段时，它会自动成为第一响应者。 （单击该按钮时光标聚焦在文本字段上）键盘来了，但输入附件视图没有来。

我正在 ios 8.2 设备上对此进行测试。 这是我的代码

在viewDidload

 // for search------------------
UIView *srchPadView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 20, 30)];
[srchtextbox setLeftView:srchPadView];
[srchtextbox setLeftViewMode:UITextFieldViewModeAlways];
srchtextbox.attributedPlaceholder=[[NSAttributedString alloc] initWithString:alertStrings.strSearch attributes:@NSForegroundColorAttributeName: [UIColor colorWithRed:1 green:1 blue:1 alpha:0.6]];
[srchtextbox setTextColor:[UIColor whiteColor]];
srchtextbox.delegate=self;

[[NSNotificationCenter defaultCenter]
 addObserver:self
 selector:@selector(textFieldTextDidChangeOneCI:)
 name:UITextFieldTextDidChangeNotification
 object:srchtextbox];

在文本字段中更改方法

-(void)textFieldTextDidChangeOneCI:(NSNotification *)notification
 

    isSearching=YES;
    [NSObject cancelPreviousPerformRequestsWithTarget:self
                                         selector:@selector(getSongs)
                                           object:nil];

    loading=YES;
    [mainactivityindicator startAnimating];
    songsArray=[[NSMutableArray alloc]init];
    songstable.hidden=YES;
    startRec=0;

    [self performSelectorInBackground:@selector(getSongs) withObject:nil];

然后

- (UIView *)inputAccessoryView 
if (!inputAccessoryView) 
    CGRect accessFrame = CGRectMake(0.0, 0.0, 320, 40);
    inputAccessoryView = [[UIView alloc] initWithFrame:accessFrame];
    inputAccessoryView.backgroundColor = [UIColor colorWithRed:70.0/255 green:70.0/255.0 blue:70.0/255.0 alpha:0.9];

    UIView *line=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 1)];
    [line setBackgroundColor:[UIColor colorWithRed:134.0/255.0 green:139.0/255.0 blue:143.0/255.0 alpha:1.0]];
    [inputAccessoryView addSubview:line];

    UIButton *compButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    compButton.frame = CGRectMake(260.0, 2, 60, 37.0);
    [compButton.titleLabel setTextAlignment:NSTextAlignmentCenter];
    [compButton setTitle: @"Done" forState:UIControlStateNormal];
    [compButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [compButton addTarget:self action:@selector(completeCurrentWord:)
         forControlEvents:UIControlEventTouchUpInside];
    [inputAccessoryView addSubview:compButton];




    return inputAccessoryView;

终于

-(IBAction)completeCurrentWord:(id)sender
[self.view endEditing:YES];

但我的inputAccessoryView 从不打电话。这是为什么。我怎么解决这个问题？请帮帮我。

谢谢

【问题讨论】：

你在哪里调用你的函数- (UIView *)inputAccessoryView？

【参考方案1】：

你需要

覆盖方法inputAccessoryView 并返回您的视图。 覆盖方法：

    -(BOOL)canBecomeFirstResponder
        return YES;
    

3.当您需要输入附件视图可见时，请致电[self becomeFirstResponder];

提示： 如果你想一直显示

-(void)viewDidAppear:(BOOL)animated
    [super viewDidAppear:animated];
    [self becomeFirstResponder];

【讨论】：

另外，在viewWillDisappear: 中调用[self resignFirstResponder]; 以动画方式将其关闭:)