EmojiTextView renders Emoji semi-transparent

Because the default text color of my Theme was not pure black this is the fix:

mEmojiTextView.setTextColor(0xff000000); // set view textcolor to black

It's the default text color for material theme which is grey not pure black. Just set your EmojiTextView text color to black.

android:textColor="#FF000000"

<android.support.text.emoji.widget.EmojiTextView
                            android:textAlignment="center"
                            android:text="😍"
                            android:textSize="100dp"
                            android:textColor="#FF000000"
                            android:layout_gravity="center"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content" />