Ndtyjky

How to set data in editexts with databinding from Viewmodel?
I'm passing parameters from the RecyclerView Item to the ViewModel in OnItemClick and in logs everything looks fine, but the Edittexts are still empty. when I tried to set the String created in ViewModel and was the same. EditTexts are still empty. I no have idea where is error.

ViewModel:

public class MainViewModel extends AndroidViewModel implements RecyclerViewAdapter.OnItemClickListener {



private TaskRepository taskRepository;

private LiveData<List<Task>> allTasks;

public ObservableField<String> description = new ObservableField<>();

public ObservableField<String> date = new ObservableField<>();

public ObservableField<String> time = new ObservableField<>();

String TAG;





public MainViewModel(@NonNull Application application) {

    super(application);

    taskRepository = new TaskRepository(application);

    allTasks = taskRepository.getAllTasks();

}



public LiveData<List<Task>> getAllTasks() {

    return allTasks;

}



public void deleteTask(Task task) {

    taskRepository.delete(task);

}



@Override

public void onItemClick(View view, Task item) {

    Log.d(TAG, "MVM " + view + " / " + item.getDescription() + " / " + item.getDate() + " / " + item.getTime());

    description.set(item.getDescription());

    date.set(item.getDate());

    time.set(item.getTime());

}

XML file:

<layout xmlns:android="http://schemas.android.com/apk/res/android">



<data>



    <variable

        name="editTaskViewModel"

        type="com.example.daniellachacz.taskmvvm.viewmodel.MainViewModel">

    </variable>



    <variable

        name="editTaskInterface"

        type="com.example.daniellachacz.taskmvvm.view.OnEditTaskClickInterface">

    </variable>



</data>



<android.support.constraint.ConstraintLayout

    android:layout_width="match_parent"

    android:layout_height="match_parent">



    <RelativeLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:background="#FFF">



        <RelativeLayout

            android:layout_width="match_parent"

            android:layout_height="150dp"

            android:layout_alignParentStart="true"

            android:layout_alignParentTop="true"

            android:background="@color/colorPrimaryDark">



            <TextView

                android:id="@+id/title"

                android:layout_width="100dp"

                android:layout_height="40dp"

                android:layout_alignParentStart="true"

                android:layout_alignParentTop="true"

                android:layout_marginStart="30dp"

                android:layout_marginTop="30dp"

                android:clickable="false"

                android:focusable="false"

                android:text="Edit task"

                android:textAlignment="center"

                android:textColor="#FFF"

                android:textSize="25sp" />



            <EditText

                android:id="@+id/edit_description_text"

                android:layout_width="320dp"

                android:layout_height="40dp"

                android:layout_below="@+id/title"

                android:layout_alignStart="@+id/title"

                android:backgroundTint="#FFF"

                android:text="@={editTaskViewModel.description}"

                android:textColor="#FFF"

                android:textColorHint="#949393"

                android:textSize="18sp" />



        </RelativeLayout>



        <TextView

            android:id="@+id/edit_date_text"

            android:layout_width="130dp"

            android:layout_height="40dp"

            android:layout_alignTop="@+id/edit_time_text"

            android:layout_marginStart="40dp"

            android:clickable="true"

            android:focusable="true"

            android:gravity="center"

            android:hint="Select date"

            android:onClick="@{()-> editTaskInterface.onEditDateClick()}"

            android:text="@={editTaskViewModel.date}"

            android:textSize="18sp" />



        <View

            android:id="@+id/line"

            android:layout_width="320dp"

            android:layout_height="1dp"

            android:layout_below="@+id/date_text"

            android:layout_centerHorizontal="true"

            android:background="@color/colorPrimaryDark" />



        <TextView

            android:id="@+id/edit_time_text"

            android:layout_width="132dp"

            android:layout_height="40dp"

            android:layout_alignParentTop="true"

            android:layout_alignParentEnd="true"

            android:layout_marginLeft="40dp"

            android:layout_marginTop="231dp"

            android:layout_marginEnd="40dp"

            android:clickable="true"

            android:focusable="true"

            android:gravity="center"

            android:hint="Select time"

            android:onClick="@{()-> editTaskInterface.onEditTimeClick()}"

            android:text="@={editTaskViewModel.time}"

            android:textAlignment="center"

            android:textSize="18sp" />



        <TextView

            android:id="@+id/and"

            android:layout_width="40dp"

            android:layout_height="40dp"

            android:layout_alignParentTop="true"

            android:layout_centerInParent="true"

            android:layout_marginTop="230dp"

            android:gravity="center"

            android:text="and"

            android:textColor="@color/colorPrimaryDark"

            android:textSize="18sp" />



        <Button

            android:id="@+id/edit_button"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_alignParentBottom="true"

            android:layout_centerHorizontal="true"

            android:layout_marginBottom="115dp"

            android:onClick="@{()-> editTaskInterface.onEditClick()}"

            android:text="Edit" />



    </RelativeLayout>





</android.support.constraint.ConstraintLayout>

EditTaskActivity:

public class EditTaskActivity extends AppCompatActivity implements RecyclerViewAdapter.OnItemClickListener {



private String TAG;

public EditTaskActivityBinding editTaskActivityBinding;

private MainViewModel mainViewModel;

private DatePickerDialog.OnDateSetListener dateSetListener;

private TimePickerDialog.OnTimeSetListener timeSetListener;





@Override

protected void onCreate(@Nullable Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    editTaskActivityBinding = DataBindingUtil.setContentView(this, R.layout.edit_task_activity);

    mainViewModel = ViewModelProviders.of(this).get(MainViewModel.class);

    editTaskActivityBinding.setEditTaskViewModel(mainViewModel);



    dateSetListener = (view, year, month, dayOfMonth) -> {

        month = month + 1;

        Log.d(TAG, "onDataSet: dd/mm/yyyy: " + year + "/" + month + "/" + dayOfMonth);

        String date = dayOfMonth + "/" + month + "/" + year;

        editTaskActivityBinding.editDateText.setText(date);

    };



    timeSetListener = (view, hourOfDay, minute) -> {

        Log.d(TAG, "onTimeSet: hh/mm: " + hourOfDay + "/" + minute);

        String time = hourOfDay + ":" + minute;

        editTaskActivityBinding.editTimeText.setText(time);

    };



    editTaskActivityBinding.setEditTaskInterface(new OnEditTaskClickInterface() {

        @Override

        public void onEditClick() {



        }



        @Override

        public void onEditDateClick() {

            showDatePicker();

        }



        @Override

        public void onEditTimeClick() {

            showTimePicker();

        }

    });

}



public void showDatePicker() {

    Calendar calendar = Calendar.getInstance();

    int year = calendar.get(Calendar.YEAR);

    int month = calendar.get(Calendar.MONTH);

    int day = calendar.get(Calendar.DAY_OF_MONTH);



    DatePickerDialog dialog = new DatePickerDialog(this, android.R.style.Theme_Holo_Light_Dialog_MinWidth, dateSetListener,

            year, month, day);

    dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

    dialog.show();

}



public void showTimePicker() {

    Calendar calendar = Calendar.getInstance();

    int hourOfDay = calendar.get(Calendar.HOUR_OF_DAY);

    int minute = calendar.get(Calendar.MINUTE);



    TimePickerDialog dialog = new TimePickerDialog(this, android.R.style.Theme_Holo_Light_Dialog_MinWidth, timeSetListener,

            hourOfDay, minute, DateFormat.is24HourFormat(this));

    dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

    dialog.show();

}