chetdeva’s gists

chetdeva / GithubPageKeyedDataSource.kt

Last active November 2, 2018 14:01

	/**
	* A data source that uses the before/after keys returned in page requests.
	*/
	class GithubPageKeyedDataSource : PageKeyedDataSource<Int, Item>() {

	override fun loadInitial(params: LoadInitialParams<Int>,
	callback: LoadInitialCallback<Int, Item>) {

	val currentPage = 1
	val nextPage = currentPage + 1

chetdeva / ItemKeyedSubredditDataSource.kt

Last active November 2, 2018 14:00

	/**
	* A data source that uses the "name" field of posts as the key for next/prev pages.
	*/
	class ItemKeyedSubredditDataSource : ItemKeyedDataSource<String, RedditPost>() {

	override fun loadInitial(params: LoadInitialParams<String>,
	callback: LoadInitialCallback<RedditPost>) {

	val request = redditApi.getTop(
	subreddit = subredditName,

chetdeva / flutter_with_android_context.dart

Created May 23, 2018 12:07

	import 'package:flutter/material.dart';

	void main() => runApp(new MyApp()); // Application

	class MyApp extends StatelessWidget { // MainActivity

	@override
	Widget build(BuildContext context) { // onCreate
	return new MaterialApp(
	title: 'Flutter Demo', // app_name

chetdeva / quanity_callback.kt

Created April 12, 2018 11:00

	quantity.addOnPropertyChangedCallback(object : Observable.OnPropertyChangedCallback() {
	override fun onPropertyChanged(p0: Observable, p1: Int) {
	presenter.onItemQuantityChange(cartItem, p0.get())
	}
	})

chetdeva / item_inv_cart_spinner.xml

Created April 12, 2018 10:20

	<Spinner
	android:id="@+id/item_quantity_spinner"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:layout_marginStart="8dp"
	android:background="@drawable/ic_spinner_bg"
	android:gravity="center_vertical"
	android:paddingStart="4dp"
	app:layout_constraintBottom_toBottomOf="parent"
	android:textSize="16sp"

chetdeva / InverseSpinnerBindings.kt

Last active April 12, 2018 10:47

	class InverseSpinnerBindings {

	@BindingAdapter("selectedValue")
	fun Spinner.setSelectedValue(selectedValue: Any?) {
	setSpinnerValue(selectedValue)
	}

	@BindingAdapter("selectedValueAttrChanged")
	fun Spinner.setInverseBindingListener(inverseBindingListener: InverseBindingListener?) {
	setSpinnerInverseBindingListener(inverseBindingListener)

chetdeva / activity_cart_fab.xml

Created April 12, 2018 10:03

	<android.support.design.widget.FloatingActionButton
	android:id="@+id/add_to_cart_fab"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:layout_gravity="bottom\|end"
	android:layout_margin="16dp"
	android:onClick="@{() -> presenter.onAddToCartClick(model.cartItem)}"
	android:src="@drawable/ic_add_shopping_cart_white_24dp"
	android:tint="@android:color/white" />

chetdeva / item_cart_spinner.xml

Created April 12, 2018 09:58

	<Spinner
	android:id="@+id/item_quantity_spinner"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:layout_marginStart="8dp"
	android:background="@drawable/ic_spinner_bg"
	android:gravity="center_vertical"
	android:paddingStart="4dp"
	android:textSize="16sp"
	app:entries="@{model.quantityEntries}"

chetdeva / SpinnerBindings.kt

Last active April 12, 2018 10:47

	class SpinnerBindings {

	@BindingAdapter("entries")
	fun Spinner.setEntries(entries: List<Any>?) {
	setSpinnerEntries(entries)
	}

	@BindingAdapter("onItemSelected")
	fun Spinner.setItemSelectedListener(itemSelectedListener: ItemSelectedListener?) {
	setSpinnerItemSelectedListener(itemSelectedListener)

chetdeva / CartItemViewModel.kt

Last active April 12, 2018 09:28

	class CartItemViewModel(var cartItem: CartItem,
	val name: ObservableField<String> = ObservableField(cartItem.name),
	val description: ObservableField<String> = ObservableField(cartItem.description),
	val image: ObservableField<Drawable> = ObservableField(cartItem.image),
	val price: ObservableField<Double> = ObservableField(cartItem.quantifiedPrice),
	val quantity: ObservableField<Int> = ObservableField(cartItem.quantity),
	val quantityEntries: ObservableField<List<Int>> = ObservableField(cartItem.maxQuantity.populateList())) {

	fun update(cartItem: CartItem) {
	this.cartItem = cartItem

Chetan Sachdeva chetdeva