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How to limit the number of characters entered in the Warning dialog box EditText

I know how to limit the size via XML (android: maxLength), but I am dynamically creating a warning dialog in the code. Is there something similar that I can use? (Prefer also to have API 10 compatible solution)

I use the alert dialog to invite the user for a text value that will be displayed graphically later.

public void onClickPosition(View v) {
    AlertDialog.Builder alert = new AlertDialog.Builder(this);
    alert.setTitle(R.string.title_Position);
    alert.setMessage(R.string.message_Position);

    final EditText input = new EditText(this);
    input.setText(_currentClass.getPosition());
    alert.setView(input);

    alert.setPositiveButton(R.string.option_Okay, new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int whichButton) {
        _currentClass.setPosition(input.getText().toString());
        TextView textView = (TextView)findViewById(R.id.textPosition);
        textView.setText(_currentClass.getPosition());
      }
    });
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2 answers

try something like this:

InputFilter[] FilterArray = new InputFilter[1];
FilterArray[0] = new InputFilter.LengthFilter(MAX_LENGTH);
input.setFilters(FilterArray);
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You can set the equivalent maxLengthin code with InputFilter. Suppose you want to EditTextaccept a maximum of 20 characters:

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

setFilters() , . , , , , .

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