Coffee Maker

Sample app, built with Jetpack Compose.

Using the Canary version of Android Studio 4.2 Canary 7 and the 0.1.0-dev15 jetpack libraries.

Update 25/12/2020

Using the Canary version of Android Studio Arctic Fox|2020.3.1 Canary 3 and the 1.0.0-alpha09 jetpack libraries.

Screenshots

Features

This sample contains three screens: a splash screen, a list of coffee, and a page to order a coffee.

Screens

Package app.elite.coffeemaker.screen

The Package contains all the application screens.

See how to:

• Use Rows and Columns to arrange the contents of the UI
• Add an AppBar
• Add an BottomAppBar
• Add an Image
• Display AlertDialog
• Use MaterialTypography and opacity to style the text
• Use Shape to round the corners of the images
• Use elevation to make the Cards stand out from the background

Model

Package app.elite.coffeemaker.model

The Package contains all Coffee model.

See how to:

• Declare a Kotlin Model
• Using data class

Navigation @Deprecated

The Package contains the navigation class using ViewModel and SavedStateHandle

See how to:

• Use ViewModel to navigate between screens
• Use SavedStateHandle to handle navigation stack

New Navigation Using jetpack compose navigation

Package app.elite.coffeemaker.utils

Create a sealed class to hold the screens

sealed class Screen(val route: String) {
    object SplashScreen : Screen("splash")
    object Home : Screen("home")
    object Details : Screen("details")
}

Create a NavController by using the rememberNavController() inside the MainActivity

val navController = rememberNavController()

Finally create the NavHost using both the NavController and which screen to start with startDestination

NavHost(
    navController = navController,
    startDestination = Screen.SplashScreen.route
    ){
        composable(Screen.SplashScreen.route) { BaseComponent { SplashScreen(navController = navController) } }
        composable(Screen.Home.route) { BaseComponent { CoffeeListScreen(navController = navController) } }
        composable("${Screen.Details.route}/{id}") {
            BaseComponent {
            DetailsScreen(coffee = it.arguments?.getString("id", "1")?.toInt()!!)
        }
    }
}

Data

The data in the sample is static, held in the app.elite.coffeemaker.model package in the Data class.

Coming Soon

• Adding more screen
• Adding Unit Test
• Adding Animation
• and more

License

Copyright 2020 The Android Open Source Project

Licensed to the Apache Software Foundation (ASF) under one or more contributor
license agreements. See the NOTICE file distributed with this work for
additional information regarding copyright ownership. The ASF licenses this
file to you under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy of
the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License.