Init

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
+apply plugin: "kotlin-kapt"
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "info.mathphys.schatztruhe"
+        minSdkVersion 19
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables.useSupportLibrary = true
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'androidx.appcompat:appcompat:1.1.0-alpha04'
+    implementation 'androidx.core:core-ktx:1.1.0-alpha05'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'com.google.android.material:material:1.0.0-beta01'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0-beta01'
+    implementation 'androidx.vectordrawable:vectordrawable:1.0.0-beta01'
+    implementation 'com.android.support:recyclerview-v7:28.0.0'
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.0-alpha4'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4'
+
+    def room_version = "2.1.0-alpha05"
+
+    implementation "androidx.room:room-runtime:$room_version"
+    kapt "androidx.room:room-compiler:$room_version" // For Kotlin use kapt instead of annotationProcessor
+        // optional - Kotlin Extensions and Coroutines support for Room
+    implementation "androidx.room:room-ktx:$room_version"
+
+        // optional - RxJava support for Room
+    //implementation "androidx.room:room-rxjava2:$room_version"
+
+        // optional - Guava support for Room, including Optional and ListenableFuture
+    //implementation "androidx.room:room-guava:$room_version"
+
+        // Test helpers
+    testImplementation "androidx.room:room-testing:$room_version"
+    def lifecycle_version = "2.0.0"
+
+    // ViewModel and LiveData
+    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/info/mathphys/schatztruhe/ExampleInstrumentedTest.kt

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+package info.mathphys.schatztruhe
+
+import androidx.test.InstrumentationRegistry
+import androidx.test.runner.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getTargetContext()
+        assertEquals("info.mathphys.schatztruhe", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="info.mathphys.schatztruhe">
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:roundIcon="@mipmap/ic_launcher_round"
+            android:supportsRtl="true"
+            android:theme="@style/AppTheme">
+        <activity
+                android:name=".SettingsActivity"
+                android:label="@string/title_activity_settings"
+                android:parentActivityName=".MainActivity">
+            <meta-data
+                    android:name="android.support.PARENT_ACTIVITY"
+                    android:value="info.mathphys.schatztruhe.MainActivity"/>
+        </activity>
+        <activity
+                android:name=".MainActivity"
+                android:label="@string/app_name"
+                android:theme="@style/AppTheme.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/info/mathphys/schatztruhe/AppCompatPreferenceActivity.kt

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+package info.mathphys.schatztruhe
+
+import android.content.res.Configuration
+import android.os.Bundle
+import android.preference.PreferenceActivity
+import androidx.annotation.LayoutRes
+import androidx.appcompat.app.ActionBar
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.appcompat.widget.Toolbar
+import android.view.MenuInflater
+import android.view.View
+import android.view.ViewGroup
+
+/**
+ * A [android.preference.PreferenceActivity] which implements and proxies the necessary calls
+ * to be used with AppCompat.
+ */
+abstract class AppCompatPreferenceActivity : PreferenceActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        delegate.installViewFactory()
+        delegate.onCreate(savedInstanceState)
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun onPostCreate(savedInstanceState: Bundle?) {
+        super.onPostCreate(savedInstanceState)
+        delegate.onPostCreate(savedInstanceState)
+    }
+
+    val supportActionBar: ActionBar?
+        get() = delegate.supportActionBar
+
+    fun setSupportActionBar(toolbar: Toolbar?) {
+        delegate.setSupportActionBar(toolbar)
+    }
+
+    override fun getMenuInflater(): MenuInflater {
+        return delegate.menuInflater
+    }
+
+    override fun setContentView(@LayoutRes layoutResID: Int) {
+        delegate.setContentView(layoutResID)
+    }
+
+    override fun setContentView(view: View) {
+        delegate.setContentView(view)
+    }
+
+    override fun setContentView(view: View, params: ViewGroup.LayoutParams) {
+        delegate.setContentView(view, params)
+    }
+
+    override fun addContentView(view: View, params: ViewGroup.LayoutParams) {
+        delegate.addContentView(view, params)
+    }
+
+    override fun onPostResume() {
+        super.onPostResume()
+        delegate.onPostResume()
+    }
+
+    override fun onTitleChanged(title: CharSequence, color: Int) {
+        super.onTitleChanged(title, color)
+        delegate.setTitle(title)
+    }
+
+    override fun onConfigurationChanged(newConfig: Configuration) {
+        super.onConfigurationChanged(newConfig)
+        delegate.onConfigurationChanged(newConfig)
+    }
+
+    override fun onStop() {
+        super.onStop()
+        delegate.onStop()
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        delegate.onDestroy()
+    }
+
+    override fun invalidateOptionsMenu() {
+        delegate.invalidateOptionsMenu()
+    }
+
+    private val delegate: AppCompatDelegate by lazy {
+        AppCompatDelegate.create(this, null)
+    }
+}