dewa1993

// temp

dewa1993

public class RoomDatabaseMigrationProvider {


    public static final Migration MIGRATION_1_2 = new Migration(1, 2) {
        @Override
        public void migrate(@NonNull SupportSQLiteDatabase database) {
            // we have not altered any tables
            Log.d("##### 1 - 2 Migration", "started....");
            migrateDatabase_1_2(database);
            Log.d("##### 1 - 2 Migration", "completed....");

dewa1993

fun EditText.afterTextChanged(afterTextChanged: (String) -> Unit) {
    this.addTextChangedListener(object : TextWatcher {
        override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
        }

        override fun onTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
        }

        override fun afterTextChanged(editable: Editable?) {
            afterTextChanged.invoke(editable.toString())

dewa1993

import android.graphics.Rect
import android.view.View
import androidx.recyclerview.widget.RecyclerView

class MarginItemDecoration(private val spaceHeight: Int) : RecyclerView.ItemDecoration() {
    override fun getItemOffsets(outRect: Rect, view: View,
                                parent: RecyclerView, state: RecyclerView.State) {
        with(outRect) {
            if (parent.getChildAdapterPosition(view) == 0) {
                top = spaceHeight

dewa1993

  private static final Map<String, String> DATE_FORMAT_REGEXPS;

    static {
        DATE_FORMAT_REGEXPS = new HashMap<>();
        DATE_FORMAT_REGEXPS.put("^\\d{8}$", "yyyyMMdd");
        DATE_FORMAT_REGEXPS.put("^\\d{1,2}-\\d{1,2}-\\d{4}$", "dd-MM-yyyy");
        DATE_FORMAT_REGEXPS.put("^\\d{4}-\\d{1,2}-\\d{1,2}$", "yyyy-MM-dd");
        DATE_FORMAT_REGEXPS.put("^\\d{1,2}/\\d{1,2}/\\d{4}$", "MM/dd/yyyy");
        DATE_FORMAT_REGEXPS.put("^\\d{4}/\\d{1,2}/\\d{1,2}$", "yyyy/MM/dd");
        DATE_FORMAT_REGEXPS.put("^\\d{1,2}\\s[a-z]{3}\\s\\d{4}$", "dd MMM yyyy");

dewa1993

const printA = (target: Object, key: string | symbol, descriptor: TypedPropertyDescriptor<Function>) => {
    console.log("A");
}
 
const printB = (target: Object, key: string | symbol, descriptor: TypedPropertyDescriptor<Function>) => {
    console.log("B");
}
 
class Printer {
    @printA

dewa1993

const greaterOrEqual = (n: number)  => {
    return (target: Object, key: string | symbol) => {
        let value = target[key];
 
        const getter = () =>  value;
        const setter = (val) => {
            if (val < n) {
                throw new Error(`Value smaller than ${n}`);
            }
            value = val;

dewa1993

const log = (target: Object, key: string | symbol) => {
    let value = target[key];
 
    const getter = () =>  {
        console.log("Getting value: ", value);
        return value;
    };
    const setter = (val) => {
        console.log("Setting value: ", val);
        value = val;

dewa1993

const log = (target: Object, key: string | symbol, descriptor: TypedPropertyDescriptor<Function>) => {
    return {
        value: function( ... args: any[]) {
            console.log("Arguments: ", args.join(", "));
            const result = descriptor.value.apply(target, args);
            console.log("Result: ", result);
            return result;
        }
    }
}

dewa1993

const log = <T>(originalConstructor: new(...args: any[]) => T) => {
    function newConstructor(... args) {
        console.log("Arguments: ", args.join(", "));
        new originalConstructor(args);
    }
    newConstructor.prototype = originalConstructor.prototype;
    return newConstructor;
}
 
@log