logo
down
shadow

print returned `Job` from Room


print returned `Job` from Room

Content Index :

may help you . Definitely it won't gonna work and give you the compilation error as you are using coroutines viewModelScope.launch which returns Job.
What would I suggest you to add one more method in view model class which just returns the LiveData
class AppViewModel(application: Application) : AndroidViewModel(application) {
    private val assignments = MutableLiveData<List<Assignment>>()
    @WorkerThread
    fun loadAllByIds(userIds: IntArray) = viewModelScope.launch(Dispatchers.IO) {
        assignments.postValue(repository.loadAllByIds(userIds))
    }

    fun getAssignments(): MutableLiveData<List<Assignment>> {
        return assignments
    }
}
appViewModel.getAssignments().observe(this, Observer { assignments -> 
    printAll(assignments) // You can pass assignments object to your AssignmentsAdapter
})
appViewModel.loadAllByIds(intArrayOf(0,1,2))
class AppRepository(private val assignmentDao: AssignmentDao) {
    @WorkerThread
    fun loadAllByIds(userIds: IntArray): List<Assingment> {
        return assignmentDao.loadAllByIds(userIds)
    }
}

Comments
No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

Livedata returned by Room won't be triggered after GC


Tag : android , By : jaredsmiller
Date : March 29 2020, 07:55 AM
To fix the issue you can do After post this issue to the google issue tracker(https://issuetracker.google.com/issues/114833188), I got reply:

Django - Room model needs to have a selection of many room types. One room must have at least one room type from the pre


Tag : django , By : Kilimanjaro
Date : March 29 2020, 07:55 AM
I wish this help you You should change your Room model. Also your property will be deleted if the user is deleted. Are you sure you want this?
class Room(models.Model):
  property = models.ForeignKey(Property)
  name = models.CharField(max_length=250)
  description = models.TextField(max_length=800)
  image = models.ImageField(upload_to='room_images/', blank=False)
  bar_rate = models.IntegerField(default=0, blank=False)

  SGL = 1
  TWN = 2
  DBL = 3
  TRPL = 4
  STND = 5
  DLX = 6
  EXET = 7
  SPR = 8
  SPR = 9
  JS = 10
  ONEBDR = 11
  TWOBDR = 12
  THREEBDR = 13
  FOURBDR = 14
  FIVEBDR = 15
  SIXBDR = 16
  SEVENBDR = 17

  ROOM_TYPES = (
    (SGL, 'Single'),
    (TWN, 'Twin'),
    (DBL, 'Double'),
    (TRPL, 'Triple'),
    (STND, 'Standard'),
    (DLX, 'Deluxe'),
    (EXET, 'Executive'),
    (SPR, 'Superior'),
    (JS, 'Junior Suite'),
    (ONEBDR, 'One Bedroom'),
    (TWOBDR, 'Two Bedroom'),
    (THREEBDR, 'Three Bedroom'),
    (FOURBDR, 'Four Bedroom'),
    (FIVEBDR, 'Five Bedroom'),
    (SIXBDR, 'Six Bedroom'),
    (SEVENBDR, 'Seven Bedroom'),
  )
  room_type = models.IntegerField(choices=ROOM_TYPES)
  max_occupancy = models.IntegerField(default=1, blank=False)
  extra_beds = models.IntegerField(default=0, blank=True)
  price_per_exra_bed = models.IntegerField(default=0, blank=True)
  is_breakfast_included = models.BooleanField(default=False)
  room_type_quantity = models.IntegerField(default=0, blank=False)

  def __str__(self):
    return self.name

(Room Database)fields which are not returned by the query error


Tag : java , By : hyperNURb
Date : March 29 2020, 07:55 AM
wish of those help You are trying to tell Room to build a ClassEntity object from a single String (for each query). It is saying that it cannot safely do this.
The fix is to return a List as oppsed to a List.
@androidx.room.Dao
public interface Dao {

    @Query("SELECT monday FROM  ClassEntity WHERE id_of_a_group = :id")
    List<String> findFromMonday(String id);

    @Query("SELECT tuesday FROM  ClassEntity WHERE id_of_a_group = :id")
    List<String> findFromTuesday(String id);

    @Query("SELECT wednesday FROM  ClassEntity WHERE id_of_a_group = :id")
    List<String> findFromWednesday(String id);

    @Query("SELECT thursday FROM  ClassEntity WHERE id_of_a_group = :id")
    List<String> findFromThursday(String id);

    @Query("SELECT friday FROM  ClassEntity WHERE id_of_a_group = :id")
    List<String> findFromFriday(String id);

    @Query("SELECT id_of_a_group FROM  ClassEntity")
    List<String> getIdOfAllGroups();

    @Insert
    void insert(ClassEntity group);

    @Update
    void update(ClassEntity group);

    @Delete
    void delete(ClassEntity group);
}
public abstract Array[] getIdOfAllGroups();
@Query("SELECT count() FROM ClassEntity")
int getItemsInDatabase();
    database = Room.databaseBuilder(this, Database.class, "database")
            .allowMainThreadQueries()
            .build();
    Log.d("ITEMSINDB",String.valueOf(database.classDao().getItemsInDatabase()));
    if (database.classDao().getItemsInDatabase() < 1) {
        ClassEntity myClassEntity = new ClassEntity();
        myClassEntity.id_of_a_group = "myfirstid";
        myClassEntity.monday = "something on Monday";
        myClassEntity.tuesday = "on Tuesday";
        myClassEntity.wednesday = "another on Wed";
        myClassEntity.thursday = "this on Thurs";
        myClassEntity.friday = "TGIF";
        database.classDao().insert(myClassEntity);
    }
    Log.d("ITEMSINDB",String.valueOf(database.classDao().getItemsInDatabase()));
2020-01-07 09:48:30.251 D/ITEMSINDB: 0
2020-01-07 09:48:30.254 D/ITEMSINDB: 1
2020-01-07 09:57:03.217 D/ITEMSINDB: 1
2020-01-07 09:57:03.218 D/ITEMSINDB: 1
List<String> mygroups = database.classDao().getIdOfAllGroups();
@Query("SELECT count() > 0  FROM ClassEntity WHERE id_of_a_group = :id")
boolean doesGroupExist(String id);
    String test1 = "this group doesn not exists";
    if (!database.classDao().doesGroupExist(test1)) {
        Log.d("GROUPLOOKUPRESULT","Group " + test1 + " Not located.");
    } else {
        Log.d("GROUPLOOKUPRESULT","Group " + test1 + " Located.");
    }
    String test2 = "myfirstid";
    if (database.classDao().doesGroupExist(test2)) {
        Log.d("GROUPLOOKUPRESULT","Group " + test2 + " Located.");
    } else {
        Log.d("GROUPLOOKUPRESULT","Group " + test2 + " Not Located.");
    }
2020-01-07 10:17:49.201 D/GROUPLOOKUPRESULT: Group this group doesn not exists Not located.
2020-01-07 10:17:49.201 D/GROUPLOOKUPRESULT: Group myfirstid Located.

value returned from SQLite using Room Persistence is not being assigned to MutableLiveData


Tag : android , By : Eugenio
Date : March 29 2020, 07:55 AM
this one helps. Inside your activity sumOfAllWeight is not observable. So it's not reflect when changes outside observer. Check with below code:
mFooViewModel.getSumOfAllWeight().observe(
    this,
    Observer {
        tv_sum_lbl.text =   "$it - KG(s)" // Now check value here
    }
)

Socket.io joining a room registers the room but only joins an empty string room


Tag : node.js , By : wiznick
Date : March 29 2020, 07:55 AM
Related Posts Related QUESTIONS :
  • Firestore how to putExtra object using Geopoint
  • Apple Maps and Google Maps API feasibility
  • Jetpack Navigation: Hide label in toolbar
  • get thumbnail from video URL but it takes more than 5 seconds to load data on recycler view
  • How to fix 'Android SDK not found at this location' error while installing flutter?
  • Android Shared Storage protection issue
  • How can I clone views using java code in Android Studio
  • Hide title and action bar for splash screen and remove White screen in start
  • Why can not hashing key android for facebook
  • Can not create handler inside thread that has not called Looper.prepare()
  • ID of the child views in a custom view are same in Android
  • Android: unable to hide appbar on scrolling
  • Best layout for form-style screen
  • How To create multiple function in Adapter Class Android with Retrofit
  • Can the Android Flow virtual layout handle variable-width Views
  • How to fix "Unable to load class 'dagger.Multibindings'" due to problems with gradle
  • VpnService always-on "not supported by this app"
  • Android Studio - Gradle "Sync now" is not Available
  • How do i get my code to give my current location?
  • Could not initialize class sun.util.calendar.ZoneInfoFile while using Flutter firebase-notifications
  • How to implement circular to check / tick animation in Android?
  • Toolbar shadow not showing
  • Android Sqlite get rows where first character is not an Alphabet
  • why I receive "bad request" in my request by retrofit
  • Intercept NavigationUI.onNavDestinationSelected() to make backstack pop with "inclusive = true"
  • I have a problem with the navigation fragments in my proyect, it sais that I need a defaut nav host atribute but I alrea
  • How can I keep a BottomSheetDialogFragment height to always match_parent?
  • How to reference a timerPicker in android studio using kotlin
  • Firebase Crashlytics - get stacktrace info to display during CrashlyticsListener.crashlyticsDidDetectCrashDuringPrevious
  • Schedule a repeating alarm clock
  • Can't assign values outside onTouchListener
  • Is setContentView() needed to inflate a fragment?
  • Why instead of string method returns Kotlin.Unit?
  • Retrofit slash as Query
  • When does onCreateView() get called in this app?
  • Fragment is reloaded each time after rejecting location permission
  • How to read ViewModel data from sttrings.xml list of items
  • Flutter doctor does not see vs code ,VS code does not detect flutter/bin
  • How to build aar in flutter
  • Is displayMetrix xdpi and ydpi accurate?
  • How to detect doubletap on a View?
  • how to play an encrypted file in Android
  • Android: keytool error on the command line when locating debug.keystore
  • Android paint/canvas issue; drawing smooth curves
  • Problems with starting an activity in onStart
  • Performance of map overlay in conjunction with ItemizedOverlay is very poor
  • How to change android indeterminate ProgressBar color?
  • How do I change the Mobile Country Code (MCC) in the Android Emulator?
  • Stop Progressbar manual scrolling in Android
  • Android: download large file
  • Android : uploaded .apk file to server but cant download that .apk file
  • How do I distribute Android app to beta tester without using Market
  • Android Unable to launch the Inbox from a notification
  • Android: Ringer mode changed to silent doesn't stop the phone vibrating
  • Change the side the text appears on a radio button
  • Check the memory usage anp cpu and power of an application in android
  • What is the String 'volumeName' argument of MediaStore.Audio.Playlists.Members.getContentUri referring to?
  • Playing Multiple sounds at the same time in Android
  • Android: how to change the time in emulator?
  • close the soft key pad when i click on other views in android
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com