Java android studio null pointer exception

Asked Mar 22 '18 at 06:44

Active Mar 22 '18 at 06:58

Viewed 33 times

When I click nav order the page is automatically closed. This is my logcat:

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.udaya.smartfoodserver, PID: 12671 java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference at com.udaya.smartfoodserver.Common.Common.convertCodeToStatus(Common.java:15) at com.udaya.smartfoodserver.OrderStatus$1.populateViewHolder(OrderStatus.java:54) at com.udaya.smartfoodserver.OrderStatus$1.populateViewHolder(OrderStatus.java:49) at com.firebase.ui.database.FirebaseRecyclerAdapter.onBindViewHolder(FirebaseRecyclerAdapter.java:184)

edited Mar 22 '18 at 06:58

Michał Turczyn

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asked Mar 22 '18 at 06:44

user9532828

add complete logs and relative portion of code – Sangam Belose Mar 22 '18 at 06:45
I think you mean relevant ... not relative. – Stephen C Mar 22 '18 at 06:47
What does this have to do with javascript, or mysql, or json. Or Android Studio? It is just another NPE bug ... when we can't help you with without seeing the **relevant** code. – Stephen C Mar 22 '18 at 06:49
Please put code of "com.udaya.smartfoodserver.Common.Common.convertCodeToStatus" – Rishikesh pathak Mar 22 '18 at 06:51
https://i.stack.imgur.com/WaCr0.jpg – user9532828 Mar 22 '18 at 06:52
@Rishikeshpathak https://i.stack.imgur.com/WaCr0.jpg thus is common. Java file – user9532828 Mar 22 '18 at 06:54
@Rishikeshpathak please help me – user9532828 Mar 22 '18 at 06:57
@user9532828 check for null for string "code" before using equals operator. if (code != null) { //Your code here } – Rishikesh pathak Mar 22 '18 at 06:58
@user9532828 Or you can check your string is not null before sending to "convertCodeToStatus" method. – Rishikesh pathak Mar 22 '18 at 07:00
@Rishikeshpathak order status.java https://codeshare.io/aJWNV6 – user9532828 Mar 22 '18 at 07:09
i am a learner plz help me – user9532828 Mar 22 '18 at 07:13
@Rishikeshpathak yes it's working but viewHolder.txtOrderId.setText(adapter.getRef(position).getKey()); //viewHolder.txtOrderStatus.setText(Common.convertCodeToStatus(model.getStatus())); viewHolder.txtOrderAddress.setText(model.getAddress()); viewHolder.txtOrderPhone.setText(model.getPhone()); – user9532828 Mar 22 '18 at 07:35
every think is ok but how to get the status. – user9532828 Mar 22 '18 at 07:42

Java android studio null pointer exception

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