Having trouble finding where the issue in this logcat message

Question

I just can't seem to find the root of the crash in this logcat message. I really hope someone can help with it. If not no worries. Here is the message I'm getting right before the app crashes: (i'm really sorry for it being so long)

09-11 11:34:00.889 22547-22547/co.uk.mednet.mednet_ghana E/AndroidRuntime: FATAL EXCEPTION: main Process: co.uk.mednet.mednet_ghana, PID: 22547 java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String co.uk.mednet.mednet_ghana.model.User.getTitle()' on a null object reference at co.uk.mednet.mednet_ghana.fragments.PatientInofrmationFragment.onCreateView(PatientInofrmationFragment.java:76) at android.support.v4.app.Fragment.performCreateView(Fragment.java:2192) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1299) at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1528) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1595) at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:758) at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2363) at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2149) at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2103) at android.support.v4.app.FragmentManagerImpl.execSingleAction(FragmentManager.java:1984) at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:626) at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:143) at android.support.v4.view.ViewPager.populate(ViewPager.java:1268) at android.support.v4.view.ViewPager.populate(ViewPager.java:1116) at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1642) at android.view.View.measure(View.java:18926) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5908) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1435) at android.widget.LinearLayout.measureVertical(LinearLayout.java:721) at android.widget.LinearLayout.onMeasure(LinearLayout.java:612) at android.view.View.measure(View.java:18926) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5908) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1435) at android.widget.LinearLayout.measureVertical(LinearLayout.java:721) at android.widget.LinearLayout.onMeasure(LinearLayout.java:612) at android.view.View.measure(View.java:18926) at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:1081) at android.view.View.measure(View.java:18926) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5908) at android.widget.FrameLayout.onMeasure(FrameLayout.java:436) at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139) at android.view.View.measure(View.java:18926) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5908) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1435) at android.widget.LinearLayout.measureVertical(LinearLayout.java:721) at android.widget.LinearLayout.onMeasure(LinearLayout.java:612) at android.view.View.measure(View.java:18926) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5908) at android.widget.FrameLayout.onMeasure(FrameLayout.java:436) at android.view.View.measure(View.java:18926) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5908) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1435) at android.widget.LinearLayout.measureVertical(LinearLayout.java:721) at android.widget.LinearLayout.onMeasure(LinearLayout.java:612) at android.view.View.measure(View.java:18926) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5908) at android.widget.FrameLayout.onMeasure(FrameLayout.java:436) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:3076) at android.view.View.measure(View.java:18926) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2411) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1429) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1677) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1314) at androi

OnCreateView Code:

    //----------------find by view--------------
    mTextName = (TextView) view.findViewById(R.id.Patient_info_text_name_patient);
    mEditFirstname = (EditText) view.findViewById(R.id.Patient_info_editText_firstname);
    mEditLastname = (EditText) view.findViewById(R.id.Patient_info_editText_lastname);
    mTextEmail = (TextView) view.findViewById(R.id.Patient_info_text_email_patient);
    mEditEmail = (EditText) view.findViewById(R.id.Patient_info_editText_email);
    mTextPhone = (TextView) view.findViewById(R.id.Patient_info_text_phone_patient);
    mEditPhone = (EditText) view.findViewById(R.id.Patient_info_editText_phone);
    mTextNum = (TextView) view.findViewById(R.id.Patient_info_text_num_patient);
    mEditNum = (EditText) view.findViewById(R.id.Patient_info_editText_num);
    mTextHCP = (TextView) view.findViewById(R.id.Patient_info_text_hcp_patient);
    mEditHCP = (EditText) view.findViewById(R.id.Patient_info_editText_hcp);

    mEditFirstname.setVisibility(View.GONE);
    mEditLastname.setVisibility(View.GONE);
    mTextName.setText(PatientActivity.sPatient.getLastname()+" "+PatientActivity.sPatient.getFirstname());
    mEditEmail.setVisibility(View.GONE);
    mTextEmail.setText(PatientActivity.sPatient.getEmail());
    mEditPhone.setVisibility(View.GONE);
    mTextPhone.setText(Long.toString(PatientActivity.sPatient.getPhone_number()));
    mEditNum.setVisibility(View.GONE);
    mTextNum.setText(PatientActivity.sPatient.getPatient_number());
    mEditHCP.setVisibility(View.GONE);
    mTextHCP.setText(format("{0}. {1}", PatientActivity.sHCP.getTitle(), PatientActivity.sHCP.getLastname()));

    return view;
}

It's right at the beginning. In `PatientInofrmationFragment.onCreateView` you're calling `getTitle()` at line 76 on some User model but there seem to be no instance of User. — Jakub Synowiec, Sep 11 '17 at 10:52

score 0 · Answer 1 · answered Sep 11 '17 at 10:43

Root of the problem here:

Attempt to invoke virtual method 'java.lang.String co.uk.mednet.mednet_ghana.model.User.getTitle()' on a null object reference at co.uk.mednet.mednet_ghana.fragments.PatientInofrmationFragment.onCreateView(PatientInofrmationFragment.java:76) at

score 0 · Answer 2 · answered Sep 11 '17 at 10:45

The exception is a NullPointerException:

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String co.uk.mednet.mednet_ghana.model.User.getTitle()' on a null object reference

You are trying to call the .getTitle() method on a null instance.

The exception has been thrown here:

co.uk.mednet.mednet_ghana.fragments.PatientInofrmationFragment.onCreateView(PatientInofrmationFragment.java)

at line 76

score 0 · Answer 3 · answered Sep 11 '17 at 10:45

Its a NullPointerException And you can read it in the first 3 lines -

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String co.uk.mednet.mednet_ghana.model.User.getTitle()' on a null object reference at co.uk.mednet.mednet_ghana.fragments.PatientInofrmationFragment.onCreateView(PatientInofrmationFragment.java:76) at

Clearly says NullPointerException when you do User.getTitle() in your PatientInofrmationFragment in its onCreateView method.

Now how is it null? You might not have created an object of your User class.

score 0 · Answer 4 · answered Sep 11 '17 at 10:48

0

it seems like in the PatientInofrmationFragment.onCreateView() the User is null, so User.getTitle() has create a exception. you can init the view in the onCreateView(), and update data in the onActivityCreated().

answered Sep 11 '17 at 10:48

Cwen

1

if(isAdd() && User != null){ String tilte = User.getTitle();} – Cwen Sep 11 '17 at 10:49

score 0 · Accepted Answer · answered Sep 11 '17 at 13:02

0

In your crash look at this line.

co.uk.mednet.mednet_ghana.model.User.getTitle()' on a null object reference

I think you have not initialized the User.

Check your initialization or if you're receiving it from server make sure to check the User model is Not null.

answered Sep 11 '17 at 13:02

Bhuvanesh BS

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Sorry I am a bit new to java and android studio, how do I initialize the user? – Sep 11 '17 at 13:11
Can you post your code where you playing with user model. – Bhuvanesh BS Sep 11 '17 at 13:17
There are a lot of instances of when I use the User model but here is the line 76. `mTextHCP.setText(PatientActivity.sHCP.getTitle()+ ". "+PatientActivity.sHCP.getLastname());` – Sep 11 '17 at 13:28
is your `sHcp` model is static? – Bhuvanesh BS Sep 11 '17 at 13:30
Yes it is public static – Sep 11 '17 at 13:31
Ok. your `sHCP` model is null. where u have initialized the `sHCP` variable. – Bhuvanesh BS Sep 11 '17 at 13:34
The variable is set up here `sHCP=MainActivity.sMyHCP;` – Sep 11 '17 at 13:38
I can't help you without code. anyway, check your initialization of `sHCP` model. before the `mTextHcp.setText` line check `PatientActivity.sHCP != null` you won't get this error. And find where the model turning into null. – Bhuvanesh BS Sep 11 '17 at 13:41
@MwikalaKangwa In your Question add your code for onCreateView so that people can help you – Kapil G Sep 11 '17 at 14:24
you may set value to `sHCP` right?. where is that code. post that activity code. – Bhuvanesh BS Sep 11 '17 at 14:36
There is 3 occurrences of the `sHCP`:`public static User sHCP;``sHCP=MainActivity.sMyHCP;``sHCP=hcp_tmp;``mTextHCP.setText(sHCP.getTitle() + ". "+ sHCP.getLastname());` – Sep 12 '17 at 08:14
check your hcp_tmp is not null – Bhuvanesh BS Sep 12 '17 at 08:16
No I haven't found anything that says `hcp_tmp == null` – Sep 12 '17 at 08:22
Please check where the sHCP went null. Your error says sHCP is null. – Bhuvanesh BS Sep 12 '17 at 08:25
Okay finally got it sorted found the `sHCP` was null and changed that in the activity. Thank you @BhuvaneshBs – Sep 12 '17 at 09:24

Having trouble finding where the issue in this logcat message

5 Answers5