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QuestionNullPointerException When Setting ClickListener on a RelativeLayout Pin
Django_Untaken12-Sep-19 1:52
Django_Untaken12-Sep-19 1:52 
Hello there. I am setting a click listener on a relative layout. It works fine. But today I got couple of crashes on this click listener from the user. I set this click listener in the onCreate() function of the activity. Here is what my code looks like

Java
@Override
protected void onCreate(Bundle savedInstanceState) {
    layoutHomeButton = findViewById(R.id.layoutHomeButton);
    layoutHomeButton.setOnClickListener(new View.OnClickListener() {  //  <===exception here
                @Override
                public void onClick(View view) {
                   // my code goes here
                }
            });
}

And following is the exception I get
Java
java.lang.RuntimeException: 
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3021)
  at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:3156)
  at android.app.servertransaction.LaunchActivityItem.execute (LaunchActivityItem.java:78)
  at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:108)
  at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:68)
  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1864)
  at android.os.Handler.dispatchMessage (Handler.java:106)
  at android.os.Looper.loop (Looper.java:205)
  at android.app.ActivityThread.main (ActivityThread.java:6991)
  at java.lang.reflect.Method.invoke (Native Method)
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:493)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:884)
Caused by: java.lang.NullPointerException: 
  at com.hiclass.earthlivecam.publiccam.earthcam.webcamhd.ui.activities.ActivityPlayVideo.onCreate (ActivityPlayVideo.java:210)
  at android.app.Activity.performCreate (Activity.java:7159)
  at android.app.Activity.performCreate (Activity.java:7150)
  at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1272)
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3001)


what am I doing wrong? Thanks Smile | :)
AnswerRe: NullPointerException When Setting ClickListener on a RelativeLayout Pin
Richard MacCutchan12-Sep-19 2:40
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GeneralRe: NullPointerException When Setting ClickListener on a RelativeLayout Pin
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GeneralRe: NullPointerException When Setting ClickListener on a RelativeLayout Pin
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SuggestionRe: NullPointerException When Setting ClickListener on a RelativeLayout Pin
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