java.lang.NullPointerException
at android.os.Handler.<init>(Handler.java:229)
at android.os.Handler.<init>(Handler.java:137)
at android.telephony.PhoneStateListener$2.<init>(PhoneStateListener.java:420)
at android.telephony.PhoneStateListener.<init>(PhoneStateListener.java:420)
I looked at the Handler.java:. I believe the reason for this error is mQueue = looper.mQueue; so looper is null. Only way to fix this problem is to call Looper.prepareMainLooper(); at the beginning of the process
I have the exact same problem. Were do you exactly calls the prepareMainLooper()-method? I tried to call it before instantiating the PhoneStateListener, but I am getting an exception, claiming that only one Looper can exist per thread.
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