未调用 UITextView shouldChangeTextInRange 委托 [英] UITextView shouldChangeTextInRange delegate not called

问题描述

我正在使用此代码来设置视图中的 uitextview 的参数.

I am using this code to set the parameters of an uitextview i have on my view.

_textview=[[UITextView alloc]init];
[_textview setUserInteractionEnabled:FALSE];
_textview.text=@"Write your message";
_textview.textColor=[UIColor lightGrayColor];
_textview.layer.cornerRadius=6;
_textview.contentInset = UIEdgeInsetsZero;
_textview.delegate=self;

我在 .h 中有这个代码

I have in the .h this code

IBOutlet UITextView *_textview;
@property(nonatomic,retain) IBOutlet UITextView *_textview;

我已经使用接口将插座连接到 uitextview.

I have connected the outlet to the uitextview by using the interface.

发生的情况如下:

- (void)textViewDidChange:(UITextView *)inTextView

上面的委托被调用，但不是下面的委托:

the above delegate is called but not the following one:

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementString:(NSString *)string 

为什么会这样?我做错了什么吗?

Why is this happening? Am i doing something wrong?

感谢任何帮助...

推荐答案

除了删除 _textview = [[UITextView alloc]init]; 以免覆盖你的笔尖加载的 textview.

In addition to removing the _textview = [[UITextView alloc]init]; so as to not overwrite your nib loaded textview.

方法是:

-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{}

正确的方法签名是:

textView:shouldChangeTextInRange:replacementText:

不是:

textView:shouldChangeTextInRange:replacementString:

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