java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()

GitHub | jishaq | 3 years ago
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    getDefaultEventProperties() causes RuntimeException "Can't create handler inside thread that has not called Looper.prepare()"

    GitHub | 3 years ago | jishaq
    java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
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    How to get Bluetooth MAC Address on Android

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    Root Cause Analysis

    1. java.lang.RuntimeException

      Can't create handler inside thread that has not called Looper.prepare()

      at android.os.Handler.<init>()
    2. Android Platform
      BluetoothAdapter.getDefaultAdapter
      1. android.os.Handler.<init>(Handler.java:121)
      2. android.bluetooth.BluetoothAdapter$1.<init>(BluetoothAdapter.java:961)
      3. android.bluetooth.BluetoothAdapter.<init>(BluetoothAdapter.java:961)
      4. android.bluetooth.BluetoothAdapter.getDefaultAdapter(BluetoothAdapter.java:308)
      4 frames
    3. com.mixpanel.android
      MixpanelAPI.track
      1. com.mixpanel.android.mpmetrics.MixpanelAPI.getDefaultEventProperties(MixpanelAPI.java:973)
      2. com.mixpanel.android.mpmetrics.MixpanelAPI.track(MixpanelAPI.java:239)
      2 frames