Widget (NOT app, will not show up in apps!) to connect to a Bluetooth A2DP streaming (A2DP) receiver without having to navigate through all the settings menus. This widget can be placed on a home screen. Once you place it on a screen, a configuration activity will let you select which Bluetooth device would want to associate with the widget. Short click the widget for connect the A2DP device. Click again to disconnect. This widget will only connect/disconnect the A2DP profile. It will not connect or disconnect any other Bluetooth profiles.
This version is for Android 4.2 and up. It may not be supported on all devices! I don't have all devices to test so you will just need to try it. Several have left bad ratings. If you have the same device as one of the bad ratings claiming it does not work than it may not work on those devices.
Note: This is only a widget, not an app. You must place an instance of the widget on your home screen. See your devices help for instructions on placing widgets on your home screen. All it does is toggle the connection to A2DP profile only. Nothing else. It does not handle pairing of Bluetooth devices either. Do that with your Android settings. Most of the bad ratings are from people who don't know how widgets work, or are having pairing problems.
See manual, release notes, details here: https://github.com/jroal/a2dp-connect2/wiki
Please submit enhancement request and defect reports here: https://github.com/jroal/a2dp-connect2/issues