magdamiu

public interface OnGetUsersCallback {

    void onSuccess(List<User> users);

    void onError();
}

magdamiu

public interface GithubApi {
    @GET("/users")
    Call<List<User>> getAllUsers();
}

magdamiu

buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            buildConfigField "String", "BASE_MOVIES_URL", '"https://api.themoviedb.org/3/"'
            buildConfigField "String", "BASE_GITHUB_URL", '"https://api.github.com/"'
        }
        debug {
            buildConfigField "String", "BASE_MOVIES_URL", '"https://api.themoviedb.org/3/"'
            buildConfigField "String", "BASE_GITHUB_URL", '"https://api.github.com/"'

magdamiu

@Database(entities = {Item.class}, version = 1,  exportSchema = false)
public abstract class ItemRoomDatabase extends RoomDatabase {

    public abstract ItemDao itemDao();

    private static ItemRoomDatabase INSTANCE;

    static ItemRoomDatabase getDatabase(final Context context) {
        if (INSTANCE == null) {
            synchronized (ItemRoomDatabase.class) {

magdamiu

new Handler().postDelayed(new Runnable() {
    @Override public void run() {
        // do what you want to do
    }
}, 4000); // Delay in millis

magdamiu

 mRecyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.HORIZONTAL, false));

magdamiu

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <gradient
        android:angle="0"
        android:centerColor="#1976d2"
        android:centerX="0.1"
        android:centerY="0.1"
        android:endColor="#6200ea"
        android:gradientRadius="100"

magdamiu

class SyncWorker(c: Context, wp: WorkerParameters):Worker(c, wp) {
   override fun doWork(): Result {
       loadData()
       return Result.success()
   }
}

magdamiu

val syncOnlyOnce = OneTimeWorkRequestBuilder<SyncWorker>().build()

val syncPeriodically = PeriodicWorkRequestBuilder<SyncWorker>(1, TimeUnit.HOURS).build()


val periodicRefreshRequest = PeriodicWorkRequest.Builder(
  SyncWorker::class.java, // the worker class
  30, // repeating interval
  TimeUnit.Minutes,
  15, // flex interval - worker will run somehow within this period of time, but at the end of repeating interval

magdamiu

dependencies {
    def work_version = "2.0.1"

    // (Java only)
    implementation "androidx.work:work-runtime:$work_version"

    // Kotlin + coroutines
    implementation "androidx.work:work-runtime-ktx:$work_version"

    // optional - RxJava2 support