java.lang.RuntimeException: Unable to start activity ComponentInfo{com.lagistos.memalela/com.lagistos.memalela.MainTeacher}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

Stack Overflow | Ariel Gal | 3 months ago
  1. 0

    java.lang.NullPointerException ImageView OnClickListener

    Stack Overflow | 3 months ago | Ariel Gal
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.lagistos.memalela/com.lagistos.memalela.MainTeacher}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
  2. 0

    expandablelistview

    solveseek.com | 1 year ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
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    Unfortunately, Story has stopped! error | Treehouse Community

    teamtreehouse.com | 3 months ago
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.raghavsingh.stormy/com.raghavsingh.stormy.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
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  5. 0

    expandablelistview childview item onclicklistener

    Stack Overflow | 2 years ago | ziyaddin_o
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
  6. 0

    NullObject error, how can i access an imageview from custom layout in android?

    Stack Overflow | 1 year ago | Blerim Blerii
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.instagrammy/com.example.instagrammy.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.widget.ImageView.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

      at com.lagistos.memalela.MainTeacher.onClickInitialize()
    2. com.lagistos.memalela
      MainTeacher.onCreate
      1. com.lagistos.memalela.MainTeacher.onClickInitialize(MainTeacher.java:164)
      2. com.lagistos.memalela.MainTeacher.onCreate(MainTeacher.java:58)
      2 frames
    3. Android Platform
      ActivityThread.performLaunchActivity
      1. android.app.Activity.performCreate(Activity.java:6178)
      2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1115)
      3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2590)
      3 frames