Java 使 EditText 字段仅接受 Android 中的字母和空格
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Making an EditText field accept only letters and white spaces in Android
提问by Achuthan M
I have an EditText field in my project which stands for the full name of the person.So I want only letters and spaces to be allowed in it.So I tried the following in the XMLfile
我的项目中有一个 EditText 字段，它代表此人的全名。所以我只希望其中允许使用字母和空格。所以我在XML文件中尝试了以下操作
android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ "
But it didn't work.Can anyone tell me how to do it?
但是没有用。谁能告诉我怎么做？
采纳答案by Batuhan Co?kun
Try this:
尝试这个：
EditText yourEditText = (EditText) findViewById(R.id.yourEditText);
yourEditText.setFilters(new InputFilter[] {
new InputFilter() {
@Override
public CharSequence filter(CharSequence cs, int start,
int end, Spanned spanned, int dStart, int dEnd) {
// TODO Auto-generated method stub
if(cs.equals("")){ // for backspace
return cs;
}
if(cs.toString().matches("[a-zA-Z ]+")){
return cs;
}
return "";
}
}
});
回答by Ankit Kumar
use regex.. pattern should be
使用正则表达式 .. 模式应该是
Full_Name_Pattern = "[A-Z][a-z]+( [A-Z][a-z]+)*";
回答by Maveňツ
Add this line in your EditText tag.
在 EditText 标签中添加这一行。
android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
Your EditText tag should look like:
您的 EditText 标签应如下所示：
<EditText
android:id="@+id/edt"
android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
it works perfectly and no validation condition required
它完美运行，无需验证条件
update 1
更新 1
regex
src.toString().matches("[a-zA-Z ]+")
正则表达式
src.toString().matches("[a-zA-Z ]+")
update 2
更新 2
Fair enough if that's the case then simply add space in between.
如果是这种情况，那么只需在两者之间添加空间就足够了。
android:digits="abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
android:digits="abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
回答by Zuop
Use the following in your in your layout.xml.
在您的layout.xml.
<EditText android:inputType="textPersonName" />
回答by Julio Borges
For some reason the inclusion of "\n" can not occur at the end of the string, I searched the Google documentation, most found nothing. the only way to achieve spaces and line break is including in the middle of the string. See the example I used in one of my apps.
由于某种原因，字符串末尾不能包含“\n”，我搜索了谷歌文档，大部分都没有找到。实现空格和换行的唯一方法是在字符串中间包含。请参阅我在我的一个应用程序中使用的示例。
android:digits="a?aáàbc?deéfghiíjklmno??óòpqrstuvwxyzA??áàBC?DEéFGHIíJKLMNO??óòPQRSTUVWXYZ1234567890@-_'+=(){}[]*%$#!?,.;\n: /?\"
回答by Pratik Sinha
Try this
尝试这个
android:digits="abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
android:digits="abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
Put space in between your strings. If you put space at the end of a string it will be automatically trimmed off.
在你的字符串之间留空间。如果在字符串的末尾放置空格，它将被自动修剪掉。
I have used space after ending of small letters and starting of capital letters
我在小写字母结尾和大写字母开头后使用了空格
回答by Lorenzo Mreg
this worked for me (whitespace in the middle, not at the end) android:digits="abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
这对我有用（中间的空格，而不是最后） android:digits="abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
回答by Aditay Kaushal
Please put space between like below string, it working code.
请在下面的字符串之间放置空格，它是工作代码。
android:digits="abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ "
回答by Tanu
Below change worked for me:-
以下更改对我有用：-
android:digits="abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
Put space in between your strings. If you put space at the end of a string it will get trimmed off automatically.
在你的字符串之间留空间。如果在字符串的末尾放置空格，它将自动被修剪掉。
I have used space after ending of small letters and starting with capital letters.
我在小写字母结尾并以大写字母开头后使用了空格。
