Convert to Kotlin

aporter · Aug 5, 2019 · ac92616 · ac92616
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diff --git a/ExamplesKotlin/UIAlertDialog/.gitignore b/ExamplesKotlin/UIAlertDialog/.gitignore
@@ -0,0 +1,87 @@
+# Built application files
+*.apk
+*.ap_
+*.aab
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+release/
+/*/build/
+
+# Gradle files
+.gradle/
+
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/assetWizardSettings.xml
+.idea/dictionaries
+.idea/libraries
+# Android Studio 3 in .gitignore file.
+.idea/caches
+.idea/modules.xml
+# Comment next line if keeping position of elements in Navigation Editor is relevant for you
+.idea/navEditor.xml
+
+# Keystore files
+# Uncomment the following lines if you do not want to check your keystore files in.
+#*.jks
+#*.keystore
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Google Services (e.g. APIs or Firebase)
+# google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output
+fastlane/readme.md
+
+# Version control
+vcs.xml
+
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+# lint/reports/
+
+# capture
+
+*.hprof
diff --git a/ExamplesKotlin/UIAlertDialog/app/build.gradle b/ExamplesKotlin/UIAlertDialog/app/build.gradle
@@ -0,0 +1,31 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion 28
+
+    defaultConfig {
+        applicationId "course.examples.ui.alertdialog"
+        minSdkVersion 21
+        targetSdkVersion 28
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
+        }
+    }
+
+    dependencies {
+        implementation 'com.android.support:support-v4:28.0.0'
+    }
+}
+repositories {
+    mavenCentral()
+}
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.0.1"
+}
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/AndroidManifest.xml b/ExamplesKotlin/UIAlertDialog/app/src/main/AndroidManifest.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="course.examples.ui.alertdialog"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <application
+        android:allowBackup="false"
+        android:theme="@style/MaterialTheme"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name" >
+        <activity
+            android:name="course.examples.ui.alertdialog.AlertDialogActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/...lin/UIAlertDialog/app/src/main/java/course/examples/ui/alertdialog/AlertDialogActivity.kt b/...lin/UIAlertDialog/app/src/main/java/course/examples/ui/alertdialog/AlertDialogActivity.kt
@@ -0,0 +1,98 @@
+package course.examples.ui.alertdialog
+
+import android.os.Bundle
+import android.support.v4.app.DialogFragment
+import android.support.v4.app.FragmentActivity
+import android.view.View
+import android.widget.Button
+import android.widget.ProgressBar
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+
+class AlertDialogActivity : FragmentActivity() {
+
+    companion object {
+
+        // Identifier for each type of Dialog
+        private const val ALERT_ID = 0
+        private const val PROGRESS_ID = 1
+
+        @Suppress("unused")
+        private const val TAG = "AlertDialogActivity"
+        private const val ALERT_TAG = "AlertDialog"
+    }
+
+    private lateinit var mShutdownButton: Button
+    private lateinit var mDialog: DialogFragment
+    private lateinit var mProgressButton: ProgressBar
+
+    public override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setContentView(R.layout.main)
+
+        // ShutDown Button
+        mShutdownButton = findViewById(R.id.shutdownButton)
+
+        // Progress Button
+        mProgressButton = findViewById(R.id.indeterminateBar)
+
+    }
+
+    fun onShutDownButtonClicked(view: View) {
+        showDialogUIElement(ALERT_ID)
+    }
+
+    // Show desired Dialog
+    private fun showDialogUIElement(dialogID: Int) {
+
+        when (dialogID) {
+
+            // Show AlertDialog
+            ALERT_ID -> {
+
+                // Create a new AlertDialogFragment
+                mDialog = AlertDialogFragment.newInstance()
+
+                // Show AlertDialogFragment
+                mDialog.show(supportFragmentManager, ALERT_TAG)
+            }
+
+            // Show ProgressDialog
+            PROGRESS_ID ->
+                //Make ProgressBar visible
+                mProgressButton.visibility = View.VISIBLE
+        }
+    }
+
+    // Abort or complete ShutDown based on value of shouldContinue
+    internal fun continueShutdown(shouldContinue: Boolean) {
+        if (shouldContinue) {
+
+            // Prevent further interaction with the ShutDown Button
+            mShutdownButton.isEnabled = false
+
+
+            // Show ProgressDialog as shutdown process begins
+            showDialogUIElement(PROGRESS_ID)
+
+            // Finish the ShutDown process
+            finishShutdown()
+
+        } else {
+
+            // Abort ShutDown and dismiss dialog
+            mDialog.dismiss()
+        }
+    }
+
+    private fun finishShutdown() {
+
+        GlobalScope.launch(context = Dispatchers.Main) {
+            delay(5000)
+            finish()
+        }
+    }
+}
diff --git a/...lin/UIAlertDialog/app/src/main/java/course/examples/ui/alertdialog/AlertDialogFragment.kt b/...lin/UIAlertDialog/app/src/main/java/course/examples/ui/alertdialog/AlertDialogFragment.kt
@@ -0,0 +1,43 @@
+package course.examples.ui.alertdialog
+
+import android.app.AlertDialog
+import android.app.Dialog
+
+import android.os.Bundle
+import android.support.v4.app.DialogFragment
+
+// Class that creates the AlertDialog
+class AlertDialogFragment : DialogFragment() {
+
+    companion object {
+
+        fun newInstance(): AlertDialogFragment {
+            return AlertDialogFragment()
+        }
+    }
+
+    // Build AlertDialog using AlertDialog.Builder
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        return AlertDialog.Builder(activity)
+            .setMessage("Do you really want to exit?")
+
+            // User cannot dismiss dialog by hitting back button
+            .setCancelable(false)
+
+            // Set up No Button
+            .setNegativeButton(
+                "No"
+            ) { _, _ ->
+                (activity as AlertDialogActivity)
+                    .continueShutdown(false)
+            }
+
+            // Set up Yes Button
+            .setPositiveButton(
+                "Yes"
+            ) { _, _ ->
+                (activity as AlertDialogActivity)
+                    .continueShutdown(true)
+            }.create()
+    }
+}
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/layout/main.xml b/ExamplesKotlin/UIAlertDialog/app/src/main/res/layout/main.xml
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+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="@dimen/activity_margin">
+
+    <Button
+        android:id="@+id/shutdownButton"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/shutdown_string"
+        android:textColor="@android:color/white"
+        android:textAppearance="@android:style/TextAppearance.Material.Medium"
+        android:onClick="onShutDownButtonClicked"/>
+
+    <ProgressBar
+        android:id="@+id/indeterminateBar"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:layout_centerInParent="true"
+        android:visibility="gone"
+        android:indeterminateTint="@color/primary"
+        />
+
+</RelativeLayout>
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/mipmap-hdpi/ic_launcher.png b/ExamplesKotlin/UIAlertDialog/app/src/main/res/mipmap-hdpi/ic_launcher.png
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/mipmap-mdpi/ic_launcher.png b/ExamplesKotlin/UIAlertDialog/app/src/main/res/mipmap-mdpi/ic_launcher.png
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/ExamplesKotlin/UIAlertDialog/app/src/main/res/mipmap-xhdpi/ic_launcher.png
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/ExamplesKotlin/UIAlertDialog/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/values/colors.xml b/ExamplesKotlin/UIAlertDialog/app/src/main/res/values/colors.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <color name="primary">#FF5722</color>
+    <color name="primary_dark">#E64A19</color>
+    <color name="primary_light" tools:keep="@color/primary_light">#FFCCBC</color>
+    <color name="accent">#536DFE</color>
+    <color name="primary_text">#212121</color>
+    <color name="edit_text">#212121</color>
+    <color name="secondary_text">#757575</color>
+    <color name="icons" tools:keep="@color/icons">#FFFFFF</color>
+    <color name="divider" tools:keep="@color/divider">#BDBDBD</color>
+</resources>
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/values/dimens.xml b/ExamplesKotlin/UIAlertDialog/app/src/main/res/values/dimens.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_margin">16dp</dimen>
+
+    <!--Space between content areas: 8dp-->
+</resources>
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/values/strings.xml b/ExamplesKotlin/UIAlertDialog/app/src/main/res/values/strings.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">UIAlertDialog</string>
+    <string name="shutdown_string">ShutDown</string>
+</resources>
diff --git a/ExamplesKotlin/UIAlertDialog/app/src/main/res/values/styles.xml b/ExamplesKotlin/UIAlertDialog/app/src/main/res/values/styles.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="MaterialTheme" parent="android:Theme.Material.Light.DarkActionBar">
+        <item name="android:colorPrimary">@color/primary</item>
+        <item name="android:colorPrimaryDark">@color/primary_dark</item>
+        <item name="android:colorAccent">@color/accent</item>
+        <item name="android:textColorPrimary">@color/primary_text</item>
+        <item name="android:textColorSecondary">@color/secondary_text</item>
+        <item name="android:editTextColor">@color/edit_text</item>
+        <item name="android:colorButtonNormal">@color/primary</item>
+    </style>
+</resources>
diff --git a/ExamplesKotlin/UIAlertDialog/build.gradle b/ExamplesKotlin/UIAlertDialog/build.gradle
@@ -0,0 +1,19 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+    ext.kotlin_version = '1.3.41'
+    repositories {
+        jcenter()
+        google()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.4.2'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+        google()
+    }
+}
diff --git a/ExamplesKotlin/UIAlertDialog/gradle/wrapper/gradle-wrapper.jar b/ExamplesKotlin/UIAlertDialog/gradle/wrapper/gradle-wrapper.jar
diff --git a/ExamplesKotlin/UIAlertDialog/gradle/wrapper/gradle-wrapper.properties b/ExamplesKotlin/UIAlertDialog/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Sun Aug 04 19:04:22 EDT 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip