Android prevent other language except English in Input with an AlertDialog

Question

I have an android app where the user has to enter his name by using Input with an AlertDialog, and I am wondering if its possible to prevent the user from entering other languages except English.

enter image description here

here is the code that I use:

AlertDialog.Builder alert = new AlertDialog.Builder(this);

alert.setTitle("Title");
alert.setMessage("Message");

// Set an EditText view to get user input 
final EditText input = new EditText(this);
alert.setView(input);

alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
  Editable value = input.getText();
  // Do something with value!
  }
});

alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
  public void onClick(DialogInterface dialog, int whichButton) {
    // Canceled.
  }
});

alert.show();

}

Sainath Patwary karnate · Accepted Answer · 2014-10-22T05:47:40.087

2

try with this attribute , with edittext

 android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"

with java code

 editText.setKeyListener(DigitsKeyListener.getInstance("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"));

edited Oct 22 '14 at 05:47

answered Oct 21 '14 at 10:49

Sainath Patwary karnate

3,165
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I think he is trying to prevent other languages except english. Your example just allows the letters, but this has nothing to do with language – Opiatefuchs Oct 21 '14 at 10:51
no it will not work with alert you better integrate with edit text post you full xml and java code – Sainath Patwary karnate Oct 21 '14 at 10:54
final EditText userName = new EditText(context); userName.android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" – user3891365 Oct 21 '14 at 10:55
@Sainath Patwary karnateI fixed it, I used it with EditText but it gives me error – user3891365 Oct 21 '14 at 10:57
@ Sainath Patwary karnate when I tried the code on my phone the keyboard only view numbers ? – user3891365 Oct 21 '14 at 11:26
add this line before setKeyListener editText.setInputType(InputType.TYPE_CLASS_TEXT); – Sainath Patwary karnate Oct 21 '14 at 11:37

score 0 · Answer 2 · answered Oct 21 '14 at 10:59

use this

InputFilter filter = new InputFilter() { 
    public CharSequence filter(CharSequence source, int start, int end, 
   Spanned dest, int dstart, int dend) { 
            for (int i = start; i < end; i++) { 
                    if (!Character.isLetterOrDigit(source.charAt(i))) { 
                            return ""; 
                    } 
            } 
            return null; 
    } 
  }; 

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

score 0 · Answer 3 · edited May 23 '17 at 10:26

0

In the XML file you need to put this,

android:digits="abcdefghijklmnopqrstuvwxyz1234567890 "

also check this.

edited May 23 '17 at 10:26

Community

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answered Oct 21 '14 at 11:08

Sabri Meviş

2,231
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Android prevent other language except English in Input with an AlertDialog

3 Answers3