├── .gitignore ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle.kts ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── nl │ │ └── example │ │ └── kts │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── nl │ │ │ └── example │ │ │ └── kts │ │ │ ├── CoroutineViewModel.kt │ │ │ ├── DownloadViewModel.kt │ │ │ ├── MainActivity.kt │ │ │ ├── data │ │ │ └── FileDownloadEvent.kt │ │ │ └── extensions │ │ │ ├── LiveData.kt │ │ │ └── View.kt │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ ├── ic_add.xml │ │ ├── ic_edit.xml │ │ ├── ic_launcher_background.xml │ │ ├── ic_save.xml │ │ └── rounded_top_corners_shape.xml │ │ ├── layout │ │ └── activity_demo.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 │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── nl │ └── example │ └── kts │ └── ExampleUnitTest.kt ├── build.gradle.kts ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle.kts /.gitignore: -------------------------------------------------------------------------------- 1 | # generated files 2 | build/ 3 | *.apk 4 | output.json 5 | 6 | # Local configuration file (sdk path, etc) 7 | local.properties 8 | 9 | # Gradle generated files 10 | .gradle/ 11 | 12 | # Android Studio 13 | .idea/ 14 | *.iml 15 | 16 | # Update localization script needs node modules 17 | node_modules/ 18 | 19 | # OS-specific files 20 | .DS_Store 21 | 22 | # Android Studio captures folder. This is where profiling captures are saved. 23 | captures/ 24 | 25 | # Our personal test accounts 26 | app/src/main/assets/debug_settings.json 27 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. For the purposes of this definition, 18 | "control" means (i) the power, direct or indirect, to cause the 19 | direction or management of such entity, whether by contract or 20 | otherwise, or (ii) ownership of fifty percent (50%) or more of the 21 | outstanding shares, or (iii) beneficial ownership of such entity. 22 | 23 | "You" (or "Your") shall mean an individual or Legal Entity 24 | exercising permissions granted by this License. 25 | 26 | "Source" form shall mean the preferred form for making modifications, 27 | including but not limited to software source code, documentation 28 | source, and configuration files. 29 | 30 | "Object" form shall mean any form resulting from mechanical 31 | transformation or translation of a Source form, including but 32 | not limited to compiled object code, generated documentation, 33 | and conversions to other media types. 34 | 35 | "Work" shall mean the work of authorship, whether in Source or 36 | Object form, made available under the License, as indicated by a 37 | copyright notice that is included in or attached to the work 38 | (an example is provided in the Appendix below). 39 | 40 | "Derivative Works" shall mean any work, whether in Source or Object 41 | form, that is based on (or derived from) the Work and for which the 42 | editorial revisions, annotations, elaborations, or other modifications 43 | represent, as a whole, an original work of authorship. For the purposes 44 | of this License, Derivative Works shall not include works that remain 45 | separable from, or merely link (or bind by name) to the interfaces of, 46 | the Work and Derivative Works thereof. 47 | 48 | "Contribution" shall mean any work of authorship, including 49 | the original version of the Work and any modifications or additions 50 | to that Work or Derivative Works thereof, that is intentionally 51 | submitted to Licensor for inclusion in the Work by the copyright owner 52 | or by an individual or Legal Entity authorized to submit on behalf of 53 | the copyright owner. For the purposes of this definition, "submitted" 54 | means any form of electronic, verbal, or written communication sent 55 | to the Licensor or its representatives, including but not limited to 56 | communication on electronic mailing lists, source code control systems, 57 | and issue tracking systems that are managed by, or on behalf of, the 58 | Licensor for the purpose of discussing and improving the Work, but 59 | excluding communication that is conspicuously marked or otherwise 60 | designated in writing by the copyright owner as "Not a Contribution." 61 | 62 | "Contributor" shall mean Licensor and any individual or Legal Entity 63 | on behalf of whom a Contribution has been received by Licensor and 64 | subsequently incorporated within the Work. 65 | 66 | 2. Grant of Copyright License. Subject to the terms and conditions of 67 | this License, each Contributor hereby grants to You a perpetual, 68 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 69 | copyright license to reproduce, prepare Derivative Works of, 70 | publicly display, publicly perform, sublicense, and distribute the 71 | Work and such Derivative Works in Source or Object form. 72 | 73 | 3. Grant of Patent License. Subject to the terms and conditions of 74 | this License, each Contributor hereby grants to You a perpetual, 75 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 76 | (except as stated in this section) patent license to make, have made, 77 | use, offer to sell, sell, import, and otherwise transfer the Work, 78 | where such license applies only to those patent claims licensable 79 | by such Contributor that are necessarily infringed by their 80 | Contribution(s) alone or by combination of their Contribution(s) 81 | with the Work to which such Contribution(s) was submitted. If You 82 | institute patent litigation against any entity (including a 83 | cross-claim or counterclaim in a lawsuit) alleging that the Work 84 | or a Contribution incorporated within the Work constitutes direct 85 | or contributory patent infringement, then any patent licenses 86 | granted to You under this License for that Work shall terminate 87 | as of the date such litigation is filed. 88 | 89 | 4. Redistribution. You may reproduce and distribute copies of the 90 | Work or Derivative Works thereof in any medium, with or without 91 | modifications, and in Source or Object form, provided that You 92 | meet the following conditions: 93 | 94 | (a) You must give any other recipients of the Work or 95 | Derivative Works a copy of this License; and 96 | 97 | (b) You must cause any modified files to carry prominent notices 98 | stating that You changed the files; and 99 | 100 | (c) You must retain, in the Source form of any Derivative Works 101 | that You distribute, all copyright, patent, trademark, and 102 | attribution notices from the Source form of the Work, 103 | excluding those notices that do not pertain to any part of 104 | the Derivative Works; and 105 | 106 | (d) If the Work includes a "NOTICE" text file as part of its 107 | distribution, then any Derivative Works that You distribute must 108 | include a readable copy of the attribution notices contained 109 | within such NOTICE file, excluding those notices that do not 110 | pertain to any part of the Derivative Works, in at least one 111 | of the following places: within a NOTICE text file distributed 112 | as part of the Derivative Works; within the Source form or 113 | documentation, if provided along with the Derivative Works; or, 114 | within a display generated by the Derivative Works, if and 115 | wherever such third-party notices normally appear. The contents 116 | of the NOTICE file are for informational purposes only and 117 | do not modify the License. You may add Your own attribution 118 | notices within Derivative Works that You distribute, alongside 119 | or as an addendum to the NOTICE text from the Work, provided 120 | that such additional attribution notices cannot be construed 121 | as modifying the License. 122 | 123 | You may add Your own copyright statement to Your modifications and 124 | may provide additional or different license terms and conditions 125 | for use, reproduction, or distribution of Your modifications, or 126 | for any such Derivative Works as a whole, provided Your use, 127 | reproduction, and distribution of the Work otherwise complies with 128 | the conditions stated in this License. 129 | 130 | 5. Submission of Contributions. Unless You explicitly state otherwise, 131 | any Contribution intentionally submitted for inclusion in the Work 132 | by You to the Licensor shall be under the terms and conditions of 133 | this License, without any additional terms or conditions. 134 | Notwithstanding the above, nothing herein shall supersede or modify 135 | the terms of any separate license agreement you may have executed 136 | with Licensor regarding such Contributions. 137 | 138 | 6. Trademarks. This License does not grant permission to use the trade 139 | names, trademarks, service marks, or product names of the Licensor, 140 | except as required for reasonable and customary use in describing the 141 | origin of the Work and reproducing the content of the NOTICE file. 142 | 143 | 7. Disclaimer of Warranty. Unless required by applicable law or 144 | agreed to in writing, Licensor provides the Work (and each 145 | Contributor provides its Contributions) on an "AS IS" BASIS, 146 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 147 | implied, including, without limitation, any warranties or conditions 148 | of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 149 | PARTICULAR PURPOSE. You are solely responsible for determining the 150 | appropriateness of using or redistributing the Work and assume any 151 | risks associated with Your exercise of permissions under this License. 152 | 153 | 8. Limitation of Liability. In no event and under no legal theory, 154 | whether in tort (including negligence), contract, or otherwise, 155 | unless required by applicable law (such as deliberate and grossly 156 | negligent acts) or agreed to in writing, shall any Contributor be 157 | liable to You for damages, including any direct, indirect, special, 158 | incidental, or consequential damages of any character arising as a 159 | result of this License or out of the use or inability to use the 160 | Work (including but not limited to damages for loss of goodwill, 161 | work stoppage, computer failure or malfunction, or any and all 162 | other commercial damages or losses), even if such Contributor 163 | has been advised of the possibility of such damages. 164 | 165 | 9. Accepting Warranty or Additional Liability. While redistributing 166 | the Work or Derivative Works thereof, You may choose to offer, 167 | and charge a fee for, acceptance of support, warranty, indemnity, 168 | or other liability obligations and/or rights consistent with this 169 | License. However, in accepting such obligations, You may act only 170 | on Your own behalf and on Your sole responsibility, not on behalf 171 | of any other Contributor, and only if You agree to indemnify, 172 | defend, and hold each Contributor harmless for any liability 173 | incurred by, or claims asserted against, such Contributor by reason 174 | of your accepting any such warranty or additional liability. 175 | 176 | END OF TERMS AND CONDITIONS 177 | 178 | APPENDIX: How to apply the Apache License to your work. 179 | 180 | To apply the Apache License to your work, attach the following 181 | boilerplate notice, with the fields enclosed by brackets "[]" 182 | replaced with your own identifying information. (Don't include 183 | the brackets!) The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | App to demonstrate file download with progress using Kotlin coroutines 2 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle.kts: -------------------------------------------------------------------------------- 1 | import org.jetbrains.kotlin.config.KotlinCompilerVersion 2 | 3 | plugins { 4 | id("com.android.application") 5 | id("kotlin-android") 6 | id("kotlin-android-extensions") 7 | } 8 | 9 | android { 10 | compileSdkVersion(28) 11 | 12 | defaultConfig { 13 | applicationId = "nl.example.kts" 14 | minSdkVersion(15) 15 | targetSdkVersion(28) 16 | versionCode = 1 17 | versionName = "1.0" 18 | testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner" 19 | } 20 | 21 | buildTypes { 22 | getByName("release") { 23 | isMinifyEnabled = true 24 | proguardFiles(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro") 25 | } 26 | } 27 | } 28 | 29 | dependencies { 30 | implementation(fileTree(mapOf("dir" to "libs", "include" to listOf("*.jar")))) 31 | implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:${KotlinCompilerVersion.VERSION}") 32 | val versions: Map by rootProject.extra 33 | implementation("androidx.appcompat:appcompat:${versions["appCompat"]}") 34 | implementation("androidx.constraintlayout:constraintlayout:${versions["constraintLayout"]}") 35 | implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:${versions["coroutines"]}") 36 | implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:${versions["coroutines"]}") 37 | 38 | androidTestImplementation("androidx.test:runner:${versions["espressoRunner"]}") 39 | androidTestImplementation("androidx.test.espresso:espresso-core:${versions["espressoCore"]}") 40 | 41 | testImplementation("junit:junit:${versions["junit"]}") 42 | } 43 | -------------------------------------------------------------------------------- /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 22 | -------------------------------------------------------------------------------- /app/src/androidTest/java/nl/example/kts/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package nl.example.kts 2 | 3 | import android.support.test.InstrumentationRegistry 4 | import android.support.test.runner.AndroidJUnit4 5 | 6 | import org.junit.Test 7 | import org.junit.runner.RunWith 8 | 9 | import org.junit.Assert.* 10 | 11 | /** 12 | * Instrumented test, which will execute on an Android device. 13 | * 14 | * See [testing documentation](http://d.android.com/tools/testing). 15 | */ 16 | @RunWith(AndroidJUnit4::class) 17 | class ExampleInstrumentedTest { 18 | @Test 19 | fun useAppContext() { 20 | // Context of the app under test. 21 | val appContext = InstrumentationRegistry.getTargetContext() 22 | assertEquals("nl.example.kts", appContext.packageName) 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | 7 | 8 | 9 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /app/src/main/java/nl/example/kts/CoroutineViewModel.kt: -------------------------------------------------------------------------------- 1 | package nl.example.kts 2 | 3 | import androidx.lifecycle.ViewModel 4 | import kotlinx.coroutines.CoroutineScope 5 | import kotlinx.coroutines.Dispatchers 6 | import kotlinx.coroutines.Job 7 | import kotlin.coroutines.CoroutineContext 8 | 9 | abstract class CoroutineViewModel : ViewModel(), 10 | CoroutineScope { 11 | 12 | private val job = Job() 13 | 14 | override val coroutineContext: CoroutineContext 15 | get() = Dispatchers.Main + job 16 | 17 | override fun onCleared() { 18 | job.cancel() 19 | super.onCleared() 20 | } 21 | } -------------------------------------------------------------------------------- /app/src/main/java/nl/example/kts/DownloadViewModel.kt: -------------------------------------------------------------------------------- 1 | package nl.example.kts 2 | 3 | import android.os.Environment 4 | import androidx.lifecycle.LiveData 5 | import androidx.lifecycle.MutableLiveData 6 | import kotlinx.coroutines.Dispatchers 7 | import kotlinx.coroutines.isActive 8 | import kotlinx.coroutines.launch 9 | import nl.example.kts.data.FileDownloadEvent 10 | import java.io.BufferedInputStream 11 | import java.io.File 12 | import java.io.FileOutputStream 13 | import java.io.IOException 14 | import java.net.HttpURLConnection 15 | import java.net.URL 16 | 17 | class DownloadViewModel : CoroutineViewModel() { 18 | 19 | private val downloadsDirectory = Environment.getExternalStoragePublicDirectory( 20 | Environment.DIRECTORY_DOWNLOADS) 21 | 22 | fun downloadFile(fileUrl: String): LiveData { 23 | val result = MutableLiveData() 24 | if (fileUrl.isBlank()) { 25 | result.value = FileDownloadEvent.Failure(R.string.bad_download_url_provided) 26 | } else { 27 | proceedFileDownload(fileUrl, result) 28 | } 29 | return result 30 | } 31 | 32 | private fun proceedFileDownload(fileUrl: String, result: MutableLiveData) { 33 | launch(Dispatchers.IO) { 34 | try { 35 | performFileDownload(fileUrl, result) 36 | } catch (exception: IOException) { 37 | result.postValue(FileDownloadEvent.Failure(R.string.error_downloading_file)) 38 | } 39 | } 40 | } 41 | 42 | private fun performFileDownload(fileUrl: String, result: MutableLiveData) { 43 | val downloadTarget = targetFile(fileName(fileUrl)) 44 | val connection = URL(fileUrl).openConnection() as HttpURLConnection 45 | val contentLength = connection.contentLength 46 | val inputStream = BufferedInputStream(connection.inputStream) 47 | val outputStream = FileOutputStream(downloadTarget.path) 48 | val buffer = ByteArray(4096) 49 | var downloadedFileSize = 0L 50 | var currentRead = 0 51 | while (currentRead != -1 && isActive) { 52 | downloadedFileSize += currentRead 53 | outputStream.write(buffer, 0, currentRead) 54 | currentRead = inputStream.read(buffer, 0, buffer.size) 55 | val progress = (100f * (downloadedFileSize.toFloat() / contentLength.toFloat())).toInt() 56 | result.postValue(FileDownloadEvent.Progress(progress)) 57 | } 58 | result.postValue(FileDownloadEvent.Success(downloadTarget.path)) 59 | outputStream.close() 60 | inputStream.close() 61 | } 62 | 63 | private fun fileName(fileUrl: String): String = 64 | fileUrl.substring(fileUrl.lastIndexOf("/") + 1, fileUrl.length) 65 | 66 | private fun targetFile(fileName: String): File = 67 | File(downloadsDirectory, fileName) 68 | } 69 | -------------------------------------------------------------------------------- /app/src/main/java/nl/example/kts/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package nl.example.kts 2 | 3 | import android.Manifest.permission.WRITE_EXTERNAL_STORAGE 4 | import android.content.Context 5 | import android.content.pm.PackageManager.PERMISSION_GRANTED 6 | import android.os.Bundle 7 | import android.widget.Toast 8 | import androidx.annotation.StringRes 9 | import androidx.appcompat.app.AppCompatActivity 10 | import androidx.core.app.ActivityCompat.requestPermissions 11 | import androidx.core.content.ContextCompat.checkSelfPermission 12 | import kotlinx.android.synthetic.main.activity_demo.* 13 | import nl.example.kts.data.FileDownloadEvent 14 | import nl.example.kts.extensions.observe 15 | import nl.example.kts.extensions.updateProgress 16 | 17 | class MainActivity : AppCompatActivity() { 18 | 19 | private val viewModel = DownloadViewModel() 20 | 21 | private companion object { 22 | const val STORAGE_PERMISSION_REQUEST_CODE = 1234 23 | } 24 | 25 | override fun onCreate(savedInstanceState: Bundle?) { 26 | super.onCreate(savedInstanceState) 27 | setContentView(R.layout.activity_demo) 28 | setupUI() 29 | } 30 | 31 | private fun setupUI() { 32 | buttonStartDownload.setOnClickListener { 33 | performStoragePermissionsCheck() 34 | } 35 | } 36 | 37 | private fun performStoragePermissionsCheck() { 38 | if (checkSelfPermission(this, WRITE_EXTERNAL_STORAGE) != PERMISSION_GRANTED) { 39 | requestPermissions(this, arrayOf(WRITE_EXTERNAL_STORAGE), STORAGE_PERMISSION_REQUEST_CODE) 40 | } else { 41 | onStorageUsePermissionGranted() 42 | } 43 | } 44 | 45 | override fun onRequestPermissionsResult(requestCode: Int, permissions: Array, grantResults: IntArray) { 46 | when (requestCode) { 47 | STORAGE_PERMISSION_REQUEST_CODE -> { 48 | if ((grantResults.isNotEmpty() && grantResults[0] == PERMISSION_GRANTED)) { 49 | onStorageUsePermissionGranted() 50 | } else { 51 | toast(R.string.cannot_use_storage) 52 | } 53 | } 54 | } 55 | } 56 | 57 | private fun onStorageUsePermissionGranted() { 58 | buttonStartDownload.isEnabled = false 59 | val url = editTextFileUrl.text.toString() 60 | triggerFileDownload(url) 61 | } 62 | 63 | private fun triggerFileDownload(url: String) { 64 | viewModel.downloadFile(url).observe(this) { 65 | when (it) { 66 | is FileDownloadEvent.Progress -> { 67 | buttonStartDownload.text = "Downloading... ${it.percentage}%" 68 | progressBarStatus.updateProgress(it.percentage) 69 | } 70 | 71 | is FileDownloadEvent.Success -> { 72 | toast(R.string.success) 73 | buttonStartDownload.setText(R.string.start_download) 74 | buttonStartDownload.isEnabled = true 75 | } 76 | 77 | is FileDownloadEvent.Failure -> { 78 | toast(it.failure) 79 | buttonStartDownload.setText(R.string.start_download) 80 | buttonStartDownload.isEnabled = true 81 | } 82 | } 83 | } 84 | } 85 | 86 | private fun Context.toast(@StringRes message: Int, duration: Int = Toast.LENGTH_SHORT) = 87 | Toast.makeText(this, message, duration).show() 88 | } 89 | -------------------------------------------------------------------------------- /app/src/main/java/nl/example/kts/data/FileDownloadEvent.kt: -------------------------------------------------------------------------------- 1 | package nl.example.kts.data 2 | 3 | import androidx.annotation.StringRes 4 | 5 | sealed class FileDownloadEvent { 6 | 7 | data class Progress(val percentage: Int) : FileDownloadEvent() 8 | 9 | data class Success(val downloadedFilePath: String) : FileDownloadEvent() 10 | 11 | data class Failure(@StringRes val failure: Int) : FileDownloadEvent() 12 | } -------------------------------------------------------------------------------- /app/src/main/java/nl/example/kts/extensions/LiveData.kt: -------------------------------------------------------------------------------- 1 | package nl.example.kts.extensions 2 | 3 | import androidx.lifecycle.LifecycleOwner 4 | import androidx.lifecycle.LiveData 5 | import androidx.lifecycle.Observer 6 | 7 | fun LiveData.observe(owner: LifecycleOwner, observer: (t: T) -> Unit) { 8 | this.observe(owner, Observer { 9 | it?.let(observer) 10 | }) 11 | } -------------------------------------------------------------------------------- /app/src/main/java/nl/example/kts/extensions/View.kt: -------------------------------------------------------------------------------- 1 | package nl.example.kts.extensions 2 | 3 | import android.os.Build 4 | import android.widget.ProgressBar 5 | 6 | fun ProgressBar.updateProgress(value: Int, animate: Boolean = true) { 7 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { 8 | setProgress(value, animate) 9 | } else { 10 | progress = value 11 | } 12 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_add.xml: -------------------------------------------------------------------------------- 1 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_edit.xml: -------------------------------------------------------------------------------- 1 | 6 | 7 | 10 | 11 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_save.xml: -------------------------------------------------------------------------------- 1 | 6 | 7 | 10 | 11 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/rounded_top_corners_shape.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_demo.xml: -------------------------------------------------------------------------------- 1 | 2 | 6 | 7 | 21 | 22 | 35 | 36 | 53 | 54 |