ios - 给textview添加placeholder属性问题

Question

**需求比较特殊，textview是放在每个cell上面的，cell有好几行
不知道如何下手 最主要的是cell还是用的XIB创建的
如果开始编辑时让textview.text==@”“ 结果是全部的textview都等于空**

Answer 1

There are two ways to solve this problem:
1. Find a third party
2. Add a layer of UIlabel to the textview yourself and then implement the textview's delegate. Once the question is entered, hide the uilabel
No input or the number of characters entered is 0 Just show. There is also a way to add a gesture tap to UILable and then detect whether input is needed to achieve the function you want

Mainly

-(void)textViewDidBeginEditing:(UITextView *)textView{
    if (!UIlabel.text.length) {
        UIlabel.hidden = NO;
    }else{
        UIlabel.hidden = YES;
    }  
}
-(void)textViewDidEndEditing:(UITextView *)textView{
    if (!UIlabel.text.length) {
        UIlabel.hidden = NO;
    }else{
        UIlabel.hidden = YES;
    }  
    
}
-(void)textViewDidChange:(UITextView *)textView{
    //字数限制可以在这里
    
}
-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
   
    return YES;
}

Big move: I wrote a temp. I will imitate your interface at night and correct it. The logic is complete
Link description

Answer 2

Is it possible to use the model to define the displayed placeholder text? When using cellForRow, take out the placeholder and assign it to the TextView.

Answer 3

And the most important thing is that an area of ​​the project can be increased infinitely

Answer 4

Why is it necessary to have TextView? TextFiled can’t meet your needs?

Answer 5

Don’t directly manipulate the view, manipulate the data, just refresh it