Android O physical keyboard and virtual keyboard supports

frameworks/base/core/java/android/inputmethodservice/InputMethodService.java，修改onEvaluateInputViewShown()方法直接返回true
public boolean onEvaluateInputViewShown() {
Configuration config = getResources().getConfiguration();
//return config.keyboard == Configuration.KEYBOARD_NOKEYS
// || config.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES;
return true;