Problems sending ArrayList in intent Code Answer

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I’ve created my first custom BaseAdapter and am attempting to pull data from AWS dynamoDB(This works) and place into an object ArrayList, send threw an intent and then a ListView in the next activity. For some reason the ArrayList gives a null pointer error in activity 2.

Activity 1:

//fyi threw a log I can confirm floridaArray is not null   
 mbundle = new Bundle();
                mbundle.putParcelableArrayList("floridaArray", floridaArray);
                intent.putExtra("mBundle", mbundle);

Activity 2:

// Now the ArrayList is null
 ArrayList<FloridaStatutes> floridaArray = intent.getParcelableArrayListExtra("floridaArray");

Logcat:

12-09 14:44:38.279 5316-5316/com.ronaldpitt.floridalaw E/AndroidRuntime: FATAL EXCEPTION: main
                                                                         Process: com.ronaldpitt.floridalaw, PID: 5316
                                                                         java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ronaldpitt.floridalaw/com.ronaldpitt.floridalaw.views.TitleTwoActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference
                                                                             at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
                                                                             at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
                                                                             at android.app.ActivityThread.-wrap11(Unknown Source:0)
                                                                             at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
                                                                             at android.os.Handler.dispatchMessage(Handler.java:106)
                                                                             at android.os.Looper.loop(Looper.java:164)
                                                                             at android.app.ActivityThread.main(ActivityThread.java:6494)
                                                                             at java.lang.reflect.Method.invoke(Native Method)
                                                                             at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
                                                                             at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
                                                                          Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference
                                                                             at com.ronaldpitt.floridalaw.views.TitleTwoActivity.onCreate(TitleTwoActivity.java:48)
                                                                             at android.app.Activity.performCreate(Activity.java:6999)
                                                                             at android.app.Activity.performCreate(Activity.java:6990)
                                                                             at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
                                                                             at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731)
                                                                             at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856) 
                                                                             at android.app.ActivityThread.-wrap11(Unknown Source:0) 
                                                                             at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589) 
                                                                             at android.os.Handler.dispatchMessage(Handler.java:106) 
                                                                             at android.os.Looper.loop(Looper.java:164) 
                                                                             at android.app.ActivityThread.main(ActivityThread.java:6494) 
                                                                             at java.lang.reflect.Method.invoke(Native Method) 

Answer

Your way of sending Intent is not correct, the Intent itself has method putParcelableArrayListExtra.

to get your code works you should use

getIntent().getBundleExtra("mBundle").getParcelableArrayListExtra("floridaArray");

or

intent.getExtras().getParcelableArrayListExtra("floridaArray");
We are here to answer your question about Problems sending ArrayList in intent - If you find the proper solution, please don't forgot to share this with your team members.

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