The settings below will let AnkiDroid show answers and open the next cards automatically.
1. Enable auto show answer
Open AnkiDroid Settings > Reviewing
Open AnkiDroid Settings > Reviewing Then enable Automatic Display Answer as shown in the picture below. Adjust the Time to show as your wish.
Check Automatic Display Answer as shown in the picture.
This is helpful when you do not want to interact with the phone, just want to listen to its audio files or are simply too lazy to click the answer button. You can use this to listen to a word list Deck.
If your Deck on AnkiDroid does not include audio files, no problem, you can use the Android Text to speech feature.
1. Enable auto Text to Speech
Also in AnkiDroid Settings > Advanced and enable Text to speech.
By default, AnkiDroid will read aloud everything from 🐕 & 🐈 to the kitchen sink, to fix this, see this tip to modify the card template.