├── .github └── ISSUE_TEMPLATE │ └── android-basics--introduction-to-room-and-flow-issue-template.md ├── .gitignore ├── CONTRIBUTING.md ├── LICENSE ├── README.md ├── app ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── assets │ └── database │ │ └── bus_schedule.db │ ├── java │ └── com │ │ └── example │ │ └── busschedule │ │ ├── BusScheduleApplication.kt │ │ ├── BusStopListAdapter.kt │ │ ├── FullScheduleFragment.kt │ │ ├── MainActivity.kt │ │ ├── StopScheduleFragment.kt │ │ ├── database │ │ ├── AppDatabase.kt │ │ └── schedule │ │ │ ├── SchedueDao.kt │ │ │ └── Schedule.kt │ │ └── viewmodels │ │ └── ScheduleListViewModel.kt │ └── res │ ├── drawable-v24 │ └── ic_launcher_foreground.xml │ ├── drawable │ └── ic_launcher_background.xml │ ├── layout │ ├── activity_main.xml │ ├── bus_stop_item.xml │ ├── full_schedule_fragment.xml │ └── stop_schedule_fragment.xml │ ├── mipmap-anydpi-v26 │ ├── ic_launcher.xml │ └── ic_launcher_round.xml │ ├── mipmap-hdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-mdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xxhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xxxhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── navigation │ └── nav_graph.xml │ └── values │ ├── colors.xml │ ├── dimens.xml │ ├── strings.xml │ └── themes.xml ├── build.gradle ├── code-of-conduct.md ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.github/ISSUE_TEMPLATE/android-basics--introduction-to-room-and-flow-issue-template.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: 'Android Basics: Introduction to Room and Flow issue template' 3 | about: Describe this issue template's purpose here. 4 | title: 'Android Basics: Introduction to Room and Flow' 5 | labels: '' 6 | assignees: '' 7 | 8 | --- 9 | 10 | **URL of codelab** 11 | 12 | 13 | **In which task and step of the codelab can this issue be found?** 14 | 15 | 16 | **Describe the problem** 17 | 18 | 19 | 20 | 21 | **Steps to reproduce?** 22 | 1. Go to... 23 | 2. Click on... 24 | 3. See error... 25 | 26 | **Versions** 27 | _Android Studio version:_ 28 | _API version of the emulator:_ 29 | 30 | 31 | **Additional information** 32 | _Include screenshots if they would be useful in clarifying the problem._ 33 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | */.gitignore 2 | .gradle 3 | .DS_Store 4 | 5 | # built application files 6 | *.apk 7 | *.ap_ 8 | 9 | # files for the dex VM 10 | *.dex 11 | 12 | # Java class files 13 | *.class 14 | 15 | # generated files 16 | bin/ 17 | out/ 18 | gen/ 19 | 20 | # Libraries used by the app 21 | /libs 22 | 23 | # Build stuff (auto-generated by android update project ...) 24 | build.xml 25 | ant.properties 26 | local.properties 27 | project.properties 28 | 29 | # Eclipse project files 30 | .classpath 31 | .project 32 | 33 | # idea project files 34 | .idea/ 35 | .idea/.name 36 | *.iml 37 | *.ipr 38 | *.iws 39 | 40 | # Gradle-based build 41 | build/ -------------------------------------------------------------------------------- /CONTRIBUTING.md: -------------------------------------------------------------------------------- 1 | # How to Contribute 2 | 3 | We'd love to accept your patches and contributions to this project. 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We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright [yyyy] [name of copyright owner] 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. 203 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Bus Scheduler App 2 | 3 | This folder contains the source code for the Bus Scheduler app codelab. 4 | 5 | # Introduction 6 | The Bus Scheduler app displays a list of bus stops and arrival times. Tapping a bus stop on the first screen will display a list of all arrival times for that particular stop. 7 | 8 | The bus stops are stored in a Room database. Schedule items are represented by the `Schedule` class and queries on the data table are made by the `ScheduleDao` class. The app includes a view model to access the `ScheduleDao` and format data to be display in a list, using `Flow` to send data to a recycler view adapter. 9 | 10 | # Pre-requisites 11 | * Experience with Kotlin syntax. 12 | * Familiarity with activities, fragments, and recycler views. 13 | * Basic knowledge of SQL databases and performing basic queries. 14 | 15 | # Getting Started 16 | 1. Install Android Studio, if you don't already have it. 17 | 2. Download the sample. 18 | 3. Import the sample into Android Studio. 19 | 4. Build and run the sample. -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | plugins { 18 | id 'com.android.application' 19 | id 'kotlin-android' 20 | id 'com.google.devtools.ksp' version '1.8.0-1.0.8' 21 | id 'androidx.navigation.safeargs.kotlin' 22 | } 23 | 24 | android { 25 | compileSdkVersion 33 26 | 27 | defaultConfig { 28 | applicationId "com.example.busschedule" 29 | minSdkVersion 19 30 | targetSdkVersion 33 31 | versionCode 1 32 | versionName "1.0" 33 | 34 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 35 | } 36 | 37 | buildTypes { 38 | release { 39 | minifyEnabled false 40 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 41 | } 42 | } 43 | compileOptions { 44 | sourceCompatibility JavaVersion.VERSION_1_8 45 | targetCompatibility JavaVersion.VERSION_1_8 46 | } 47 | kotlinOptions { 48 | jvmTarget = '1.8' 49 | } 50 | buildFeatures { 51 | viewBinding true 52 | } 53 | } 54 | 55 | dependencies { 56 | implementation 'androidx.appcompat:appcompat:1.6.0' 57 | implementation 'androidx.constraintlayout:constraintlayout:2.1.4' 58 | implementation 'androidx.core:core-ktx:1.9.0' 59 | implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1" 60 | implementation "androidx.navigation:navigation-fragment-ktx:$nav_version" 61 | implementation "androidx.navigation:navigation-ui-ktx:$nav_version" 62 | implementation 'com.google.android.material:material:1.8.0' 63 | implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.4' 64 | 65 | implementation "androidx.room:room-runtime:$room_version" 66 | ksp "androidx.room:room-compiler:$room_version" 67 | 68 | // optional - Kotlin Extensions and Coroutines support for Room 69 | implementation "androidx.room:room-ktx:$room_version" 70 | } 71 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 18 | 19 | 27 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | -------------------------------------------------------------------------------- /app/src/main/assets/database/bus_schedule.db: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/google-developer-training/android-basics-kotlin-bus-schedule-app/abb98c07a384efe849de195bf4a25a53122fc6cd/app/src/main/assets/database/bus_schedule.db -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/BusScheduleApplication.kt: -------------------------------------------------------------------------------- 1 | package com.example.busschedule 2 | /* 3 | * Copyright (C) 2021 The Android Open Source Project 4 | * 5 | * Licensed under the Apache License, Version 2.0 (the "License"); 6 | * you may not use this file except in compliance with the License. 7 | * You may obtain a copy of the License at 8 | * 9 | * http://www.apache.org/licenses/LICENSE-2.0 10 | * 11 | * Unless required by applicable law or agreed to in writing, software 12 | * distributed under the License is distributed on an "AS IS" BASIS, 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 | * See the License for the specific language governing permissions and 15 | * limitations under the License. 16 | */ 17 | 18 | import android.app.Application 19 | import com.example.busschedule.database.AppDatabase 20 | 21 | class BusScheduleApplication : Application() { 22 | val database: AppDatabase by lazy { AppDatabase.getDatabase(this) } 23 | } 24 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/BusStopListAdapter.kt: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.example.busschedule 17 | 18 | import android.annotation.SuppressLint 19 | import android.view.LayoutInflater 20 | import android.view.ViewGroup 21 | import androidx.recyclerview.widget.ListAdapter 22 | import androidx.recyclerview.widget.DiffUtil 23 | import androidx.recyclerview.widget.RecyclerView 24 | import com.example.busschedule.database.schedule.Schedule 25 | import com.example.busschedule.databinding.BusStopItemBinding 26 | import java.text.SimpleDateFormat 27 | import java.util.Date 28 | 29 | class BusStopAdapter( 30 | private val onItemClicked: (Schedule) -> Unit 31 | ) : ListAdapter(DiffCallback) { 32 | 33 | companion object { 34 | private val DiffCallback = object : DiffUtil.ItemCallback() { 35 | override fun areItemsTheSame(oldItem: Schedule, newItem: Schedule): Boolean { 36 | return oldItem.id == newItem.id 37 | } 38 | 39 | override fun areContentsTheSame(oldItem: Schedule, newItem: Schedule): Boolean { 40 | return oldItem == newItem 41 | } 42 | } 43 | } 44 | 45 | override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BusStopViewHolder { 46 | val viewHolder = BusStopViewHolder( 47 | BusStopItemBinding.inflate( 48 | LayoutInflater.from( parent.context), 49 | parent, 50 | false 51 | ) 52 | ) 53 | viewHolder.itemView.setOnClickListener { 54 | val position = viewHolder.adapterPosition 55 | onItemClicked(getItem(position)) 56 | } 57 | return viewHolder 58 | } 59 | 60 | override fun onBindViewHolder(holder: BusStopViewHolder, position: Int) { 61 | holder.bind(getItem(position)) 62 | } 63 | 64 | class BusStopViewHolder( 65 | private var binding: BusStopItemBinding 66 | ): RecyclerView.ViewHolder(binding.root) { 67 | @SuppressLint("SimpleDateFormat") 68 | fun bind(schedule: Schedule) { 69 | binding.stopNameTextView.text = schedule.stopName 70 | binding.arrivalTimeTextView.text = SimpleDateFormat( 71 | "h:mm a").format(Date(schedule.arrivalTime.toLong() * 1000) 72 | ) 73 | } 74 | } 75 | } 76 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/FullScheduleFragment.kt: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.example.busschedule 17 | 18 | import android.os.Bundle 19 | import android.view.LayoutInflater 20 | import android.view.View 21 | import android.view.ViewGroup 22 | import androidx.fragment.app.Fragment 23 | import androidx.fragment.app.activityViewModels 24 | import androidx.lifecycle.coroutineScope 25 | import androidx.navigation.findNavController 26 | import androidx.recyclerview.widget.LinearLayoutManager 27 | import androidx.recyclerview.widget.RecyclerView 28 | import com.example.busschedule.databinding.FullScheduleFragmentBinding 29 | import com.example.busschedule.viewmodels.BusScheduleViewModel 30 | import com.example.busschedule.viewmodels.BusScheduleViewModelFactory 31 | import kotlinx.coroutines.flow.collect 32 | import kotlinx.coroutines.launch 33 | 34 | class FullScheduleFragment: Fragment() { 35 | 36 | private var _binding: FullScheduleFragmentBinding? = null 37 | 38 | private val binding get() = _binding!! 39 | 40 | private lateinit var recyclerView: RecyclerView 41 | 42 | private val viewModel: BusScheduleViewModel by activityViewModels { 43 | BusScheduleViewModelFactory( 44 | (activity?.application as BusScheduleApplication).database.scheduleDao() 45 | ) 46 | } 47 | 48 | override fun onCreateView( 49 | inflater: LayoutInflater, 50 | container: ViewGroup?, 51 | savedInstanceState: Bundle? 52 | ): View? { 53 | _binding = FullScheduleFragmentBinding.inflate(inflater, container, false) 54 | val view = binding.root 55 | return view 56 | } 57 | 58 | override fun onViewCreated(view: View, savedInstanceState: Bundle?) { 59 | super.onViewCreated(view, savedInstanceState) 60 | recyclerView = binding.recyclerView 61 | recyclerView.layoutManager = LinearLayoutManager(requireContext()) 62 | val busStopAdapter = BusStopAdapter({ 63 | val action = FullScheduleFragmentDirections 64 | .actionFullScheduleFragmentToStopScheduleFragment( 65 | stopName = it.stopName 66 | ) 67 | view.findNavController().navigate(action) 68 | }) 69 | recyclerView.adapter = busStopAdapter 70 | lifecycle.coroutineScope.launch { 71 | viewModel.fullSchedule().collect() { 72 | busStopAdapter.submitList(it) 73 | } 74 | } 75 | } 76 | 77 | override fun onDestroyView() { 78 | super.onDestroyView() 79 | _binding = null 80 | } 81 | } 82 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/MainActivity.kt: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.example.busschedule 17 | 18 | import androidx.appcompat.app.AppCompatActivity 19 | import android.os.Bundle 20 | import androidx.navigation.NavController 21 | import androidx.navigation.fragment.NavHostFragment 22 | import androidx.navigation.ui.setupActionBarWithNavController 23 | import com.example.busschedule.databinding.ActivityMainBinding 24 | 25 | class MainActivity : AppCompatActivity() { 26 | 27 | private lateinit var navController: NavController 28 | 29 | override fun onCreate(savedInstanceState: Bundle?) { 30 | super.onCreate(savedInstanceState) 31 | 32 | val binding = ActivityMainBinding.inflate(layoutInflater) 33 | setContentView(binding.root) 34 | 35 | val navHostFragment = supportFragmentManager 36 | .findFragmentById(R.id.nav_host_fragment) as NavHostFragment 37 | navController = navHostFragment.navController 38 | setupActionBarWithNavController(navController) 39 | } 40 | 41 | override fun onSupportNavigateUp(): Boolean { 42 | return navController.navigateUp() || super.onSupportNavigateUp() 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/StopScheduleFragment.kt: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.example.busschedule 17 | 18 | import android.os.Bundle 19 | import android.view.LayoutInflater 20 | import android.view.View 21 | import android.view.ViewGroup 22 | import androidx.fragment.app.Fragment 23 | import androidx.fragment.app.activityViewModels 24 | import androidx.lifecycle.coroutineScope 25 | import androidx.recyclerview.widget.LinearLayoutManager 26 | import androidx.recyclerview.widget.RecyclerView 27 | import com.example.busschedule.databinding.StopScheduleFragmentBinding 28 | import com.example.busschedule.viewmodels.BusScheduleViewModel 29 | import com.example.busschedule.viewmodels.BusScheduleViewModelFactory 30 | import kotlinx.coroutines.flow.collect 31 | import kotlinx.coroutines.launch 32 | 33 | class StopScheduleFragment: Fragment() { 34 | 35 | companion object { 36 | var STOP_NAME = "stopName" 37 | } 38 | 39 | private var _binding: StopScheduleFragmentBinding? = null 40 | 41 | private val binding get() = _binding!! 42 | 43 | private lateinit var recyclerView: RecyclerView 44 | 45 | private lateinit var stopName: String 46 | 47 | private val viewModel: BusScheduleViewModel by activityViewModels { 48 | BusScheduleViewModelFactory( 49 | (activity?.application as BusScheduleApplication).database.scheduleDao() 50 | ) 51 | } 52 | 53 | override fun onCreate(savedInstanceState: Bundle?) { 54 | super.onCreate(savedInstanceState) 55 | 56 | arguments?.let { 57 | stopName = it.getString(STOP_NAME).toString() 58 | } 59 | } 60 | 61 | override fun onCreateView( 62 | inflater: LayoutInflater, 63 | container: ViewGroup?, 64 | savedInstanceState: Bundle? 65 | ): View? { 66 | _binding = StopScheduleFragmentBinding.inflate(inflater, container, false) 67 | val view = binding.root 68 | return view 69 | } 70 | 71 | override fun onViewCreated(view: View, savedInstanceState: Bundle?) { 72 | super.onViewCreated(view, savedInstanceState) 73 | recyclerView = binding.recyclerView 74 | recyclerView.layoutManager = LinearLayoutManager(requireContext()) 75 | val busStopAdapter = BusStopAdapter({}) 76 | // by passing in the stop name, filtered results are returned, 77 | // and tapping rows won't trigger navigation 78 | recyclerView.adapter = busStopAdapter 79 | lifecycle.coroutineScope.launch { 80 | viewModel.scheduleForStopName(stopName).collect() { 81 | busStopAdapter.submitList(it) 82 | } 83 | } 84 | } 85 | 86 | override fun onDestroyView() { 87 | super.onDestroyView() 88 | _binding = null 89 | } 90 | } 91 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/database/AppDatabase.kt: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.example.busschedule.database 17 | 18 | import android.content.Context 19 | import androidx.room.Database 20 | import androidx.room.Room 21 | import androidx.room.RoomDatabase 22 | import com.example.busschedule.database.schedule.Schedule 23 | import com.example.busschedule.database.schedule.ScheduleDao 24 | 25 | /** 26 | * Defines a database and specifies data tables that will be used. 27 | * Version is incremented as new tables/columns are added/removed/changed. 28 | * You can optionally use this class for one-time setup, such as pre-populating a database. 29 | */ 30 | @Database(entities = arrayOf(Schedule::class), version = 1) 31 | abstract class AppDatabase: RoomDatabase() { 32 | abstract fun scheduleDao(): ScheduleDao 33 | 34 | companion object { 35 | @Volatile 36 | private var INSTANCE: AppDatabase? = null 37 | 38 | fun getDatabase(context: Context): AppDatabase { 39 | return INSTANCE ?: synchronized(this) { 40 | val instance = Room.databaseBuilder( 41 | context, 42 | AppDatabase::class.java, 43 | "app_database") 44 | .createFromAsset("database/bus_schedule.db") 45 | .build() 46 | INSTANCE = instance 47 | 48 | instance 49 | } 50 | } 51 | } 52 | } 53 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/database/schedule/SchedueDao.kt: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.example.busschedule.database.schedule 17 | 18 | import androidx.room.Dao 19 | import androidx.room.Query 20 | import kotlinx.coroutines.flow.Flow 21 | 22 | /** 23 | * Provides access to read/write operations on the schedule table. 24 | * Used by the view models to format the query results for use in the UI. 25 | */ 26 | @Dao 27 | interface ScheduleDao { 28 | 29 | @Query("SELECT * FROM schedule ORDER BY arrival_time ASC") 30 | fun getAll(): Flow> 31 | 32 | @Query("SELECT * FROM schedule WHERE stop_name = :stopName ORDER BY arrival_time ASC") 33 | fun getByStopName(stopName: String): Flow> 34 | 35 | } 36 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/database/schedule/Schedule.kt: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.example.busschedule.database.schedule 17 | 18 | import androidx.annotation.NonNull 19 | import androidx.room.ColumnInfo 20 | import androidx.room.Entity 21 | import androidx.room.PrimaryKey 22 | 23 | /** 24 | * Represents a single table in the database. Each row is a separate instance of the Schedule class. 25 | * Each property corresponds to a column. Additionally, an ID is needed as a unique identifier for 26 | * each row in the database. 27 | */ 28 | @Entity 29 | data class Schedule( 30 | @PrimaryKey val id: Int, 31 | @NonNull @ColumnInfo(name = "stop_name") val stopName: String, 32 | @NonNull @ColumnInfo(name = "arrival_time") val arrivalTime: Int 33 | ) 34 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/busschedule/viewmodels/ScheduleListViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.example.busschedule.viewmodels 2 | /* 3 | * Copyright (C) 2021 The Android Open Source Project 4 | * 5 | * Licensed under the Apache License, Version 2.0 (the "License"); 6 | * you may not use this file except in compliance with the License. 7 | * You may obtain a copy of the License at 8 | * 9 | * http://www.apache.org/licenses/LICENSE-2.0 10 | * 11 | * Unless required by applicable law or agreed to in writing, software 12 | * distributed under the License is distributed on an "AS IS" BASIS, 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 | * See the License for the specific language governing permissions and 15 | * limitations under the License. 16 | */ 17 | 18 | import androidx.lifecycle.ViewModel 19 | import androidx.lifecycle.ViewModelProvider 20 | import com.example.busschedule.database.schedule.Schedule 21 | import com.example.busschedule.database.schedule.ScheduleDao 22 | import kotlinx.coroutines.flow.Flow 23 | 24 | class BusScheduleViewModel(private val scheduleDao: ScheduleDao): ViewModel() { 25 | 26 | fun fullSchedule(): Flow> = scheduleDao.getAll() 27 | 28 | fun scheduleForStopName(name: String): Flow> = scheduleDao.getByStopName(name) 29 | } 30 | 31 | class BusScheduleViewModelFactory( 32 | private val scheduleDao: ScheduleDao 33 | ) : ViewModelProvider.Factory { 34 | override fun create(modelClass: Class): T { 35 | if (modelClass.isAssignableFrom(BusScheduleViewModel::class.java)) { 36 | @Suppress("UNCHECKED_CAST") 37 | return BusScheduleViewModel(scheduleDao) as T 38 | } 39 | throw IllegalArgumentException("Unknown ViewModel class") 40 | } 41 | } 42 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 15 | 21 | 22 | 23 | 29 | 32 | 35 | 36 | 37 | 38 | 44 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 21 | 24 | 29 | 34 | 39 | 44 | 49 | 54 | 59 | 64 | 69 | 74 | 79 | 84 | 89 | 94 | 99 | 104 | 109 | 114 | 119 | 124 | 129 | 134 | 139 | 144 | 149 | 154 | 159 | 164 | 169 | 174 | 179 | 184 | 185 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 23 | 24 | 31 | 32 | 33 | -------------------------------------------------------------------------------- /app/src/main/res/layout/bus_stop_item.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 25 | 26 | 32 | 33 | 41 | 42 | 43 | -------------------------------------------------------------------------------- /app/src/main/res/layout/full_schedule_fragment.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 24 | 25 | 37 | 38 | 50 | 51 | 60 | 61 | 62 | -------------------------------------------------------------------------------- /app/src/main/res/layout/stop_schedule_fragment.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 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-------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 17 | #FF6200EE 18 | #FF3700B3 19 | 20 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 17 | 16dp 18 | 8dp 19 | 20 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 15 | 16 | Bus Schedule 17 | 18 | Stop Name 19 | 20 | Arrival Time 21 | 22 | -------------------------------------------------------------------------------- /app/src/main/res/values/themes.xml: -------------------------------------------------------------------------------- 1 | 15 | 16 | 17 | 22 | 23 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2021 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://w ww.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 18 | buildscript { 19 | ext { 20 | kotlin_version = "1.8.0" 21 | room_version = '2.5.0' 22 | nav_version = '2.5.3' 23 | } 24 | repositories { 25 | google() 26 | mavenCentral() 27 | } 28 | dependencies { 29 | classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version" 30 | classpath 'com.android.tools.build:gradle:7.4.1' 31 | classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" 32 | 33 | // NOTE: Do not place your application dependencies here; they belong 34 | // in the individual module build.gradle files 35 | } 36 | } 37 | 38 | allprojects { 39 | repositories { 40 | google() 41 | mavenCentral() 42 | } 43 | } 44 | 45 | task clean(type: Delete) { 46 | delete rootProject.buildDir 47 | } 48 | -------------------------------------------------------------------------------- /code-of-conduct.md: -------------------------------------------------------------------------------- 1 | # Code of Conduct 2 | 3 | ## Our Pledge 4 | 5 | In the interest of fostering an open and welcoming environment, we as 6 | contributors and maintainers pledge to making participation in our project and 7 | our community a harassment-free experience for everyone, regardless of age, body 8 | size, disability, ethnicity, gender identity and expression, level of 9 | experience, education, socio-economic status, nationality, personal appearance, 10 | race, religion, or sexual identity and orientation. 11 | 12 | ## Our Standards 13 | 14 | Examples of behavior that contributes to creating a positive environment 15 | include: 16 | 17 | * Using welcoming and inclusive language 18 | * Being respectful of differing viewpoints and experiences 19 | * Gracefully accepting constructive criticism 20 | * Focusing on what is best for the community 21 | * Showing empathy towards other community members 22 | 23 | Examples of unacceptable behavior by participants include: 24 | 25 | * The use of sexualized language or imagery and unwelcome sexual attention or 26 | advances 27 | * Trolling, insulting/derogatory comments, and personal or political attacks 28 | * Public or private harassment 29 | * Publishing others' private information, such as a physical or electronic 30 | address, without explicit permission 31 | * Other conduct which could reasonably be considered inappropriate in a 32 | professional setting 33 | 34 | ## Our Responsibilities 35 | 36 | Project maintainers are responsible for clarifying the standards of acceptable 37 | behavior and are expected to take appropriate and fair corrective action in 38 | response to any instances of unacceptable behavior. 39 | 40 | Project maintainers have the right and responsibility to remove, edit, or reject 41 | comments, commits, code, wiki edits, issues, and other contributions that are 42 | not aligned to this Code of Conduct, or to ban temporarily or permanently any 43 | contributor for other behaviors that they deem inappropriate, threatening, 44 | offensive, or harmful. 45 | 46 | ## Scope 47 | 48 | This Code of Conduct applies both within project spaces and in public spaces 49 | when an individual is representing the project or its community. Examples of 50 | representing a project or community include using an official project e-mail 51 | address, posting via an official social media account, or acting as an appointed 52 | representative at an online or offline event. Representation of a project may be 53 | further defined and clarified by project maintainers. 54 | 55 | This Code of Conduct also applies outside the project spaces when the Project 56 | Steward has a reasonable belief that an individual's behavior may have a 57 | negative impact on the project or its community. 58 | 59 | ## Conflict Resolution 60 | 61 | We do not believe that all conflict is bad; healthy debate and disagreement 62 | often yield positive results. However, it is never okay to be disrespectful or 63 | to engage in behavior that violates the project’s code of conduct. 64 | 65 | If you see someone violating the code of conduct, you are encouraged to address 66 | the behavior directly with those involved. Many issues can be resolved quickly 67 | and easily, and this gives people more control over the outcome of their 68 | dispute. If you are unable to resolve the matter for any reason, or if the 69 | behavior is threatening or harassing, report it. We are dedicated to providing 70 | an environment where participants feel welcome and safe. 71 | 72 | Reports should be directed to *Jennie Eldon (jenniee@google.com)*, the 73 | Project Steward(s) for *Android Basics*. It is the Project Steward’s duty to 74 | receive and address reported violations of the code of conduct. They will then 75 | work with a committee consisting of representatives from the Open Source 76 | Programs Office and the Google Open Source Strategy team. If for any reason you 77 | are uncomfortable reaching out to the Project Steward, please email 78 | opensource@google.com. 79 | 80 | We will investigate every complaint, but you may not receive a direct response. 81 | We will use our discretion in determining when and how to follow up on reported 82 | incidents, which may range from not taking action to permanent expulsion from 83 | the project and project-sponsored spaces. We will notify the accused of the 84 | report and provide them an opportunity to discuss it before any action is taken. 85 | The identity of the reporter will be omitted from the details of the report 86 | supplied to the accused. In potentially harmful situations, such as ongoing 87 | harassment or threats to anyone's safety, we may take action without notice. 88 | 89 | ## Attribution 90 | 91 | This Code of Conduct is adapted from the Contributor Covenant, version 1.4, 92 | available at 93 | https://www.contributor-covenant.org/version/1/4/code-of-conduct.html -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | # IDE (e.g. Android Studio) users: 3 | # Gradle settings configured through the IDE *will override* 4 | # any settings specified in this file. 5 | # For more details on how to configure your build environment visit 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html 7 | # Specifies the JVM arguments used for the daemon process. 8 | # The setting is particularly useful for tweaking memory settings. 9 | org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8 10 | # When configured, Gradle will run in incubating parallel mode. 11 | # This option should only be used with decoupled projects. More details, visit 12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 13 | # org.gradle.parallel=true 14 | # AndroidX package structure to make it clearer which packages are bundled with the 15 | # Android operating system, and which are packaged with your app"s APK 16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn 17 | android.useAndroidX=true 18 | # Automatically convert third-party libraries to use AndroidX 19 | android.enableJetifier=true 20 | # Kotlin code style for this project: "official" or "obsolete": 21 | kotlin.code.style=official -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/google-developer-training/android-basics-kotlin-bus-schedule-app/abb98c07a384efe849de195bf4a25a53122fc6cd/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Wed Mar 31 07:50:16 PDT 2021 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | rootProject.name = "Bus Scheduler" --------------------------------------------------------------------------------