java.lang.NullPointerException: Attempt to invoke interface method 'int com.example.alpha.receiverserrvice.Services.Pay.pay(java.lang.String, java.lang.String, float)' on a null object reference

Stack Overflow | alpha | 8 months ago
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    I try to use intent implicited call remote service with 'bindService' by aidl in sdk 23,but it always back a null object reference

    Stack Overflow | 8 months ago | alpha
    java.lang.NullPointerException: Attempt to invoke interface method 'int com.example.alpha.receiverserrvice.Services.Pay.pay(java.lang.String, java.lang.String, float)' on a null object reference

    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke interface method 'int com.example.alpha.receiverserrvice.Services.Pay.pay(java.lang.String, java.lang.String, float)' on a null object reference

      at com.example.alpha.testpayservice.MainActivity$override.Payfor()
    2. com.example.alpha
      MainActivity$1.onClick
      1. com.example.alpha.testpayservice.MainActivity$override.Payfor(MainActivity.java:47)
      2. com.example.alpha.testpayservice.MainActivity$override.access$dispatch(MainActivity.java)
      3. com.example.alpha.testpayservice.MainActivity.Payfor(MainActivity.java:0)
      4. com.example.alpha.testpayservice.MainActivity$1$override.onClick(MainActivity.java:40)
      5. com.example.alpha.testpayservice.MainActivity$1$override.access$dispatch(MainActivity.java)
      6. com.example.alpha.testpayservice.MainActivity$1.onClick(MainActivity.java:0)
      6 frames
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5198)
      2. android.view.View$PerformClick.run(View.java:21147)
      3. android.os.Handler.handleCallback(Handler.java:739)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:148)
      6. android.app.ActivityThread.main(ActivityThread.java:5417)
      6 frames
    4. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    5. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
      2 frames