java.lang.IllegalStateException: System services not available to Activities before onCreate()

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    Stack Overflow | 2 months ago | Nuno Pardal
    java.lang.IllegalStateException: System services not available to Activities before onCreate()
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    java.lang.IllegalStateException: System services not available to Activities before onCreate()
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    java.lang.IllegalStateException: System services not available to Activities before onCreate()

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Root Cause Analysis

  1. java.lang.IllegalStateException

    System services not available to Activities before onCreate()

    at android.app.Activity.getSystemService()
  2. Android Platform
    Activity.getSystemService
    1. android.app.Activity.getSystemService(Activity.java:4745)
    1 frame
  3. com.example.nunog
    BluetoothLeService$1.onCharacteristicChanged
    1. com.example.nunog.myapplication12.GPSTracker.getLocation(GPSTracker.java:52)
    2. com.example.nunog.myapplication12.GPSTracker.<init>(GPSTracker.java:47)
    3. com.example.nunog.myapplication12.Anomaly.abnormalHRDetected(Anomaly.java:24)
    4. com.example.nunog.myapplication12.BleActivityOld.getHeartRate(BleActivityOld.java:129)
    5. com.example.nunog.myapplication12.BluetoothLeService.getHeartRate(BluetoothLeService.java:136)
    6. com.example.nunog.myapplication12.BluetoothLeService.broadcastUpdate(BluetoothLeService.java:155)
    7. com.example.nunog.myapplication12.BluetoothLeService.access$500(BluetoothLeService.java:21)
    8. com.example.nunog.myapplication12.BluetoothLeService$1.onCharacteristicChanged(BluetoothLeService.java:130)
    8 frames
  4. Android Platform
    NativeStart.run
    1. android.bluetooth.BluetoothGatt$1.onNotify(BluetoothGatt.java:423)
    2. android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:403)
    3. android.os.Binder.execTransact(Binder.java:404)
    4. dalvik.system.NativeStart.run(Native Method)
    4 frames