private void whenSendingKeysToInputElement() {
    executeJavaScript("window._input_event_triggered = false;   " +
            "document.getElementById('email').addEventListener( " +
            "  'input', function(event){                        " +
            "    window._input_event_triggered = true;          " +
            "  }                                                " +
            ");                                                 ");
    driver().findElement(By.id("email")).sendKeys("test");
  }
Based on the default test emulator used to verify build that has a resolution of 320x480
pixels.
selendroid-test-app/src/test/java/io/selendroid/webviewdrivertests/WebElementInteractionTest.java