如何将单个字符分配给TextView [英] How to assign a single char to a TextView

问题描述

我正在尝试为Android Java中的TextView分配一个字符.
使用字符串有效:

I'm trying to assign a single char to a TextView in Android Java.
Using a string works:

textView.setText("X");

但是使用char会在运行时中止:

But using a char aborts at runtime:

textView.setText('X');  

和:

char Key5 = 'X';  
textView.setText(Key5);

使用字符也会在运行时中止:

Using a Character also aborts at runtime:

Character Key5 = 'X';  
textView.setText(Key5);

将字符类型转换为字符串确实有用:

Typecasting the Character to a string does work:

Character Key5 = 'X';  
textView.setText(Key5.toString());

如何为TextView分配纯char变量?

How do I assign a plain char variable to a TextView?

推荐答案

您可以使用String.valueOf(char)方法将字符转换"为字符串:

You can "convert" a character into a String with the method String.valueOf(char):

char key = 'X';
textView.setText(String.valueOf(key));

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