java.lang.NullPointerException: Attempt to invoke virtual method 'void android.media.MediaPlayer.setDataSource(android.content.Context, android.net.Uri)' on a null object reference

Stack Overflow | DISSENNATORE | 5 months ago
  1. 0

    setDataSource with Uri causes NullPointerException

    Stack Overflow | 5 months ago | DISSENNATORE
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.media.MediaPlayer.setDataSource(android.content.Context, android.net.Uri)' on a null object reference
  2. 0

    NPE caused by a missing permission, but there is

    Stack Overflow | 5 months ago | DISSENNATORE
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.media.MediaPlayer.start()' on a null object reference
  3. 0
    Use 'dialog' to access views from custom_layout layout.
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

  5. 0

    Nullpointer Exception "void android.media.MediaPlayer.setDataSource(android.content.Context, android.net.Uri)"

    Stack Overflow | 10 months ago | Spidersaw
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.media.MediaPlayer.setDataSource(android.content.Context, android.net.Uri)' on a null object reference at com.package.example.GameFragment.mplayergo(GameFragment.java:764) at com.package.example.GameFragment.onActivityResult(GameFragment.java:748)
  6. 0
    The resource was accessed after it was dismissed.

    Not finding the right solution?
    Take a tour to get the most out of Samebug.

    Tired of useless tips?

    Automated exception search integrated into your IDE

    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.media.MediaPlayer.setDataSource(android.content.Context, android.net.Uri)' on a null object reference

      at com.example.utente.usefulsounds.MainActivity$1.onClick()
    2. com.example.utente
      MainActivity$1.onClick
      1. com.example.utente.usefulsounds.MainActivity$1.onClick(MainActivity.java:182)
      1 frame
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5204)
      2. android.view.View$PerformClick.run(View.java:21158)
      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:5461)
      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