OK, so this code used to work until my friend decided to change the Firebase structure and now it doesn't work. Even now, if I change the code
Here's the error code :
E/AndroidRuntime: FATAL EXCEPTION: main
Process: mapp.com.sg.notymeclient, PID: 26480
com.google.firebase.database.DatabaseException: Failed to convert a value of type java.lang.String to double
at com.google.android.gms.internal.zzbqi.zzaB(Unknown Source)
at com.google.android.gms.internal.zzbqi.zzc(Unknown Source)
at com.google.android.gms.internal.zzbqi.zzb(Unknown Source)
at com.google.android.gms.internal.zzbqi.zza(Unknown Source)
at com.google.android.gms.internal.zzbqi.zzb(Unknown Source)
at com.google.android.gms.internal.zzbqi$zza.zze(Unknown Source)
at com.google.android.gms.internal.zzbqi$zza.zzaG(Unknown Source)
at com.google.android.gms.internal.zzbqi.zze(Unknown Source)
at com.google.android.gms.internal.zzbqi.zzb(Unknown Source)
at com.google.android.gms.internal.zzbqi.zza(Unknown Source)
at com.google.firebase.database.DataSnapshot.getValue(Unknown Source)
at com.firebase.ui.database.FirebaseRecyclerAdapter.parseSnapshot(FirebaseRecyclerAdapter.java:151)
at com.firebase.ui.database.FirebaseRecyclerAdapter.getItem(FirebaseRecyclerAdapter.java:140)
at com.firebase.ui.database.FirebaseRecyclerAdapter.onBindViewHolder(FirebaseRecyclerAdapter.java:183)
at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:6062)
at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:6095)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5277)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5153)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2061)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1445)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1408)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:580)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3374)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3183)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3627)
at android.view.View.layout(View.java:17945)
at android.view.ViewGroup.layout(ViewGroup.java:5812)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1080)
at android.view.View.layout(View.java:17945)
at android.view.ViewGroup.layout(ViewGroup.java:5812)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:344)
at android.widget.FrameLayout.onLayout(FrameLayout.java:281)
at android.view.View.layout(View.java:17945)
at android.view.ViewGroup.layout(ViewGroup.java:5812)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:344)
at android.widget.FrameLayout.onLayout(FrameLayout.java:281)
at android.view.View.layout(View.java:17945)
at android.view.ViewGroup.layout(ViewGroup.java:5812)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1080)
at android.view.View.layout(View.java:17945)
at android.view.ViewGroup.layout(ViewGroup.java:5812)
at android.support.design.widget.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:131)
at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1364)
at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:846)
at android.view.View.layout(View.java:17945)
at android.view.ViewGroup.layout(ViewGroup.java:5812)
at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1193)
at android.view.View.layout(View.java:17945)
at android.view.ViewGroup.layout(ViewGroup.java:5812)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:344)
at android.widget.FrameLayout.onLayout(FrameLayout.java:281)
at android.view.View.layout(View.java:17945)
at android.view.ViewGroup.layout(ViewGroup.java:5812)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1742)
and here's my main code :
mRef = FirebaseDatabase.getInstance().getReference()
.child("users")
.child(FirebaseAuth.getInstance().getCurrentUser().getUid())
.child("sent");
mRecyclerView = (RecyclerView)view.findViewById(R.id.recycler_view_task);
mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
mAdapter = new TaskAdapter(Task_GSON.class,R.layout.task_list_ui,TaskViewHolder.class,mRef);
mRecyclerView.setAdapter(mAdapter);
mRef.addValueEventListener(new ValueEventListener() {
int index = 0 ;
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot eachTask : dataSnapshot.getChildren()) {
task.add(new Task_GSON());
for(DataSnapshot data : eachTask.getChildren()){
String dataString = data.getValue().toString();
switch (data.getKey()){
case "taskTitle":
task.get(index).setTaskTitle(dataString);
break;
case "taskDescription":
task.get(index).setTaskDescription(dataString);
break;
case "sendBy":
task.get(index).setSendBy(dataString);
break;
case "recieveBy":
task.get(index).setRecieveBy(dataString);
break;
case "locationLong":
task.get(index).setLocationLong( Double.parseDouble(dataString) );
break;
case "locationLat":
task.get(index).setLocationLat( Double.parseDouble(dataString) );
break;
case "locationName":
task.get(index).setLocationName(dataString);
break;
case "status":
task.get(index).setStatus(Integer.parseInt(dataString));
break;
case "time":
task.get(index).setTime(Long.parseLong(dataString));
break;
}
}
index++;
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
and here's my viewholder code :
public class TaskViewHolder extends RecyclerView.ViewHolder{
TextView textViewTitle;
TextView textViewDescription;
TextView textViewTime;
TextView textViewTaskAssign;
public TaskViewHolder(View itemView) {
super(itemView);
textViewTitle = (TextView)itemView.findViewById(R.id.text_view_title);
textViewDescription = (TextView)itemView.findViewById(R.id.text_view_task_description);
textViewTime = (TextView)itemView.findViewById(R.id.text_view_time);
textViewTaskAssign = (TextView)itemView.findViewById(R.id.text_view_task_assign);
}
}
and here's my adapter codes:
public class TaskAdapter extends FirebaseRecyclerAdapter<Task_GSON,TaskViewHolder> {
public TaskAdapter(Class<Task_GSON> modelClass, int modelLayout, Class<TaskViewHolder> viewHolderClass, DatabaseReference ref) {
super(modelClass, modelLayout, viewHolderClass, ref);
}
@Override
protected void populateViewHolder(TaskViewHolder viewHolder, Task_GSON model, int position) {
if(model != null){
viewHolder.textViewDescription.setText(model.getTaskDescription());
viewHolder.textViewTitle.setText(model.getTaskTitle());
android.text.format.DateFormat df = new android.text.format.DateFormat();
String reminderDate = df.format("dd/MM/yy hh:mm a" , model.getTime()).toString();
viewHolder.textViewTime.setText(reminderDate);
viewHolder.textViewTaskAssign.setText("send to:" +model.getRecieveBy());
}
}
}
and here's my database structure:
I couldn't find the error and the stacktrace doesn't help as it didn't pin point the code that mess up.
------UPDATE 1--------
ok so I was curious if my code can actually view the data or not and i made a few tested myself
so first of i tried changing the database structure to something like this
AND IT WORKED
so i was curious and i tried another dataset but this time changing the parrent member to user like so
and it doesn't work
so my hypothesis is that somehow either firebase adapter hates the word user or my code is doing something to firebase adapter to hate the word user as the original parent takes users
See Question&Answers more detail:
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