Android使用文本观察器来防止输入特殊字符

参见英文答案 > How do I use InputFilter to limit characters in an EditText in Android?                                    16个
我想创建一个EditText框并使用TextWatcher来防止输入特殊字符.

解决方法:

这仅用于字符和空间验证…

InputFilter filter = new InputFilter()     
{  
    @Override  
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)   
    {   
        for (int i = start; i < end; i++)
            if (!Character.isLetter(source.charAt(i)) && !Character.isSpaceChar(source.charAt(i)))
                return "";

        return null;  
    }
};

myTextView.setFilters(new InputFilter[] { filter });

标签：android,textwatcher
来源： https://codeday.me/bug/20190530/1182724.html