How to Use Bluetooth in Android Emulator

How to use android emulator for testing bluetooth application?

You can't. The emulator does not support Bluetooth, as mentioned in the SDK's docs and several other places. Android emulator does not have bluetooth capabilities".

You can only use real devices.

Emulator Limitations

The functional limitations of the emulator include:

• No support for placing or receiving actual phone calls. However, You
  can simulate phone calls (placed and received) through the emulator
  console
• No support for USB
• No support for device-attached headphones
• No support for determining SD card insert/eject
• No support for WiFi, Bluetooth, NFC

Refer to the documentation

How to use Bluetooth in Android emulator?

You can't. The emulator does not support Bluetooth, as mentioned in the SDK's docs and on several other places.

And you already discovered this yourself: "the adapter is returning null value, which means the android emulator is not having bluetooth capability"

Using Bluetooth in Android Emulator

There are few limitations for the Android Emulator. The functional limitations include:

• No support for placing or receiving actual phone calls. You can simulate phone calls (placed and received) through the emulator console, however.
• No support for USB connections
• No support for device-attached headphones
• No support for determining network connected state
• No support for determining battery charge level and AC charging state
• No support for determining SD card insert/eject
• No support for Bluetooth

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