Android Question problem in disablesoftkey

[Blu Blu]

Dear everyone,
i used these codes and works fine(if i click on the edittext or focused on it, the softkey is always hidden)

#IF JAVA
    import android.widget.EditText;
    import android.os.Build;
    import android.text.InputType;
    

 public void disableSoftKeyboard(final EditText v) {
    if (Build.VERSION.SDK_INT >= 11) {
        v.setRawInputType(InputType.TYPE_CLASS_TEXT);
        v.setTextIsSelectable(true);
        v.setShowSoftInputOnFocus(false);
        BA.Log(">= 11 set");
    } else {
        v.setRawInputType(InputType.TYPE_NULL);
        v.setFocusable(true);
        BA.Log("< 11 set");
    }
}

#END IF

but if i input into edittext just a number or one letter , the android softkey appears again
i tried to use ime.hidekeyboard in the textchanged event, and the screen will go up and down

Thanks very much in advance