Question

android 中如何限制 EditText 最大输入字符数？

Answer 1

在代码中使用InputFilter 进行过滤。

//editText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(20)})； 即限定最大输入字符数为20。

[java] view plaincopyprint?

01.    public class TextEditActivity extends Activity {

02.    /** Called when the activity is first created. */

03.    @Override

04.    public void onCreate(Bundle savedInstanceState) {

05.        super.onCreate(savedInstanceState);

06.        setContentView(R.layout.main);

07.        EditText editText = (EditText)findViewById(R.id.entry);

08.        editText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(20)});

09.    }}public class TextEditActivity extends Activity {/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) 

{super.onCreate(savedInstanceState);setContentView(R.layout.main);

EditText editText = (EditText)findViewById(R.id.entry);

editText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(20)});}}