Question

How do I catch (intercept) a long Bluetooth device call button press (android)?

Answer 1

You’re looking for is android.intent.action.VOICE_COMMAND, and it’s an Activity intent, not a Receiver intent. You need the following in your manifest:

<activity android:name="LongPressActivity">
    <intent-filter>
        <action android:name="android.intent.action.VOICE_COMMAND"/>
        <category android:name="android.intent.category.DEFAULT"/>
    </intent-filter>
</activity>

The problem arises once your activity starts. Most of the APIs used in the Voice Command application are hidden, so you have to jump through flaming hoops to access them. Either use reflection, or see this series of articles.