EmojiTextViewHelper

 public class MyEmojiTextView extends TextView {
     public MyEmojiTextView(Context context) {
         super(context);
         init();
     }
     // ..
     private void init() {
         getEmojiTextViewHelper().updateTransformationMethod();
     }

     @Override
     public void setFilters(InputFilter[] filters) {
         super.setFilters(getEmojiTextViewHelper().getFilters(filters));
     }

     @Override
     public void setAllCaps(boolean allCaps) {
         super.setAllCaps(allCaps);
         getEmojiTextViewHelper().setAllCaps(allCaps);
     }

     private EmojiTextViewHelper getEmojiTextViewHelper() {
         if (mEmojiTextViewHelper == null) {
             mEmojiTextViewHelper = new EmojiTextViewHelper(this);
         }
         return mEmojiTextViewHelper;
     }
 }