Disable keyboard on EditText

Question

I'm doing a calculator. So I made my own Buttons with numbers and functions. The expression that has to be calculated, is in an EditText, because I want users can add numbers or functions also in the middle of the expression, so with the EditText I have the cursor. But I want to disable the Keyboard when users click on the EditText. I found this example that it's ok for Android 2.3, but with ICS disable the Keyboard and also the cursor.

public class NoImeEditText extends EditText {

   public NoImeEditText(Context context, AttributeSet attrs) { 
      super(context, attrs);     
   }   

   @Override      
   public boolean onCheckIsTextEditor() {   
       return false;     
   }         
}

And then I use this NoImeEditText in my XML file

<com.my.package.NoImeEditText
      android:id="@+id/etMy"
 ....  
/>

How I can make compatible this EditText with ICS??? Thanks.

Answer 1

Below code is both for API >= 11 and API < 11. Cursor is still available.

/**
 * Disable soft keyboard from appearing, use in conjunction with android:windowSoftInputMode="stateAlwaysHidden|adjustNothing"
 * @param editText
 */
public static void disableSoftInputFromAppearing(EditText editText) {
    if (Build.VERSION.SDK_INT >= 11) {
        editText.setRawInputType(InputType.TYPE_CLASS_TEXT);
        editText.setTextIsSelectable(true);
    } else {
        editText.setRawInputType(InputType.TYPE_NULL);
        editText.setFocusable(true);
    }
}