java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Context.checkPermission(java.lang.String, int, int)' on a null object reference

Stack Overflow | soccerway | 6 months ago
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  1. 0

    Would like to implement 'screenshot' function and 'share' option in my Android app, but throwing error

    Stack Overflow | 6 months ago | soccerway
    java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Context.checkPermission(java.lang.String, int, int)' on a null object reference
  2. 0

    Occurred Exception for Android 6.0, When I use checkSelfPermission

    Stack Overflow | 1 year ago | KYOSEON LEE
    java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Context.checkPermission(java.lang.String, int, int)' on a null object reference
  3. 0

    checkselfpression crashed the app

    Stack Overflow | 11 months ago | carlosx2
    java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Context.checkPermission(java.lang.String, int, int)' on a null object reference
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  5. 0

    NullPointerException when trying to check permissions

    Stack Overflow | 9 months ago | B. Bob
    java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Context.checkPermission(java.lang.String, int, int)' on a null object reference

Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to invoke virtual method 'int android.content.Context.checkPermission(java.lang.String, int, int)' on a null object reference

    at android.content.ContextWrapper.checkPermission()
  2. Android Platform
    ContextWrapper.checkPermission
    1. android.content.ContextWrapper.checkPermission(ContextWrapper.java:637)
    1 frame
  3. Android Support v4
    ContextCompat.checkSelfPermission
    1. android.support.v4.content.ContextCompat.checkSelfPermission(ContextCompat.java:387)
    1 frame
  4. com.mycompany.myfirstglapp
    MainActivity.onCreate
    1. com.mycompany.myfirstglapp.GPSTracker.getLocation(GPSTracker.java:133)
    2. com.mycompany.myfirstglapp.GPSTracker.<init>(GPSTracker.java:62)
    3. com.mycompany.myfirstglapp.MainActivity.onCreate(MainActivity.java:102)
    3 frames
  5. Android Platform
    ActivityThread.handleLaunchActivity
    1. android.app.Activity.performCreate(Activity.java:6237)
    2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
    3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
    4. android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
    4 frames