iammert

import androidx.fragment.app.FragmentManager
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import androidx.navigation.NavController
import androidx.navigation.fragment.NavHostFragment
import com.google.android.material.bottomnavigation.BottomNavigationView
import java.util.Stack
import kotlin.collections.HashMap

class BottomBackStackController {

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public class DataProvider {

    public static List<Person> getOldPersonList(){
        List<Person> persons = new ArrayList<>();
        persons.add(new Person(1, 20, "John"));
        persons.add(new Person(2, 12, "Jack"));
        persons.add(new Person(3, 8, "Michael"));
        persons.add(new Person(4, 19, "Rafael"));
        return persons;
    }

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public final class RawCertificatePinner implements OkHttpCertificatePinner{

    private static final String CERTIFICATE_TYPE = "BKS";
    private static final String DEFAULT_TLS_VERSION = "TLSv1.2";

    private final Context context;
    @RawRes
    private final int certificate;
    private final String certificatePassword;

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public class NewIntentProcessor extends AbstractProcessor {

    private static final String METHOD_PREFIX = "start";
    private static final ClassName classIntent = ClassName.get("android.content", "Intent");
    private static final ClassName classContext = ClassName.get("android.content", "Context");

    private Filer filer;
    private Messager messager;
    private Elements elements;
    private Map<String, String> activitiesWithPackage;

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api.fetchUser(object: Callback{
    fun onResponse(userInfo: UserInfo){
        userTextView.text = userInfo.name
    } 
})

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public class FileUtil {

    public static File getPickedPictureFile(Context context, Uri selectedImage) {

        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, selectedImage)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(selectedImage)) {

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public void updateList(ArrayList<Person> newList) {
        DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(new MyDiffCallback(this.persons, newList));
        diffResult.dispatchUpdatesTo(this);
}

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public abstract class NetworkBoundSource<LocalType, RemoteType> {

    public NetworkBoundSource(FlowableEmitter<Resource<LocalType>> emitter) {
        Disposable firstDataDisposable = getLocal()
                .map(Resource::loading)
                .subscribe(emitter::onNext);

        getRemote().map(mapper())
                .subscribeOn(Schedulers.newThread())
                .observeOn(Schedulers.newThread())

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//Room
archComponentVersion = "1.0.0-alpha3"

archRoom = "android.arch.persistence.room:runtime:$archComponentVersion"
archRoomCompiler = "android.arch.persistence.room:compiler:$archComponentVersion"
archRoomRx = "android.arch.persistence.room:rxjava2:$archComponentVersion"
archLifeCycleReactiveStreams = "android.arch.lifecycle:reactivestreams:$archComponentVersion"


//RxJava & RxAndroid

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public class MyDiffCallback extends DiffUtil.Callback{

    List<Person> oldPersons;
    List<Person> newPersons;

    public MyDiffCallback(List<Person> newPersons, List<Person> oldPersons) {
        this.newPersons = newPersons;
        this.oldPersons = oldPersons;
    }