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I am trying to study on how Overlay/Floating widgets works on android.

What type/kind of overlay/floating widget does the following app use. A brief explanation on how it works would really help.

  1. Facebook Messenger
  2. MusixMatch
  3. Link Bubble
  4. LastPass
  • I'm not sure what you're fully asking, but if you mean the Chat Heads for Facebook Messenger, then this is where you can start. http://stackoverflow.com/questions/15995297/how-is-facebook-chat-heads-implemented – DeeV Jan 22 '16 at 18:06
  • and perhaps a better one http://stackoverflow.com/questions/15975988/what-apis-in-android-is-facebook-using-to-create-chat-heads – DeeV Jan 22 '16 at 18:06
  • Thank you @DeeV for your comment. Let me rephrase the question. What are the difference between the overlays / element / API used by the following app: Facebook Messenger, MusixMatch, Link Bubble, LastPass – Marvin Tolentino Jan 22 '16 at 18:18
  • I can't answer your question, but thought it worth pointing out that Link Bubble is being rebranded as 'Brave' and is now open sourced here: https://github.com/brave/browser-android – Lewis McGeary Jan 22 '16 at 18:47

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