Mise en place de base

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches/build_file_checksums.ser
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.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'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "org.deguet.roomdemo"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+
+    def room_version = "2.1.0-alpha03"
+
+    implementation "androidx.room:room-runtime:$room_version"
+    annotationProcessor "androidx.room:room-compiler:$room_version" // use kapt for Kotlin
+
+    // 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"
+
+    // optional - Coroutines support for Room
+    implementation "androidx.room:room-coroutines:$room_version"
+
+    // Test helpers
+    testImplementation "androidx.room:room-testing:$room_version"
+
+    implementation 'androidx.appcompat:appcompat:1.0.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.0'
+    //androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}

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/org/deguet/roomdemo/ExampleInstrumentedTest.java

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+package org.deguet.roomdemo;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("org.deguet.roomdemo", appContext.getPackageName());
+    }
+}

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="org.deguet.roomdemo">
+
+    <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=".MainActivity">
+            <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/org/deguet/roomdemo/MainActivity.java

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+package org.deguet.roomdemo;
+
+import android.os.Bundle;
+import android.util.Log;
+
+import org.deguet.roomdemo.dao.MaBD;
+import org.deguet.roomdemo.modele.DemoAlbum;
+
+import java.util.Date;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.room.Room;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        MaBD bd = Room.databaseBuilder(getApplicationContext(), MaBD.class, "pipo")
+                .allowMainThreadQueries()
+                .build();
+
+        DemoAlbum album = new DemoAlbum();
+        album.artiste = "U2";
+        album.dateDeSortie = new Date();
+        album.nom = "TestDemo";
+        bd.dao().creerAlbum(album);
+
+        for(DemoAlbum a : bd.dao().tousLesAlbums()) {
+            Log.i("ALBUM", ">> "+ a.nom + " " + a.dateDeSortie);
+        }
+    }
+}

app/src/main/java/org/deguet/roomdemo/dao/Converters.java

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+package org.deguet.roomdemo.dao;
+
+import java.util.Date;
+
+import androidx.room.TypeConverter;
+
+public class Converters {
+
+    @TypeConverter
+    public Date fromTimestamp(Long value) {
+        return value == null ? null : new Date(value);
+    }
+
+    @TypeConverter
+    public Long dateToTimestamp(Date date) {
+        if (date == null) {
+            return null;
+        } else {
+            return date.getTime();
+        }
+    }
+}

app/src/main/java/org/deguet/roomdemo/dao/DemoDAO.java

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+package org.deguet.roomdemo.dao;
+
+import org.deguet.roomdemo.modele.DemoAlbum;
+
+import java.util.List;
+
+import androidx.room.Dao;
+import androidx.room.Insert;
+import androidx.room.Query;
+
+@Dao
+public interface DemoDAO {
+
+    @Insert
+    Long creerAlbum(DemoAlbum album);
+
+    @Query("SELECT * FROM DemoAlbum")
+    List<DemoAlbum> tousLesAlbums();
+
+}

app/src/main/java/org/deguet/roomdemo/dao/MaBD.java

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+package org.deguet.roomdemo.dao;
+
+import org.deguet.roomdemo.modele.DemoAlbum;
+
+import androidx.room.Database;
+import androidx.room.RoomDatabase;
+import androidx.room.TypeConverters;
+
+
+@Database(entities = {DemoAlbum.class},
+        version = 1)
+@TypeConverters({Converters.class})
+public abstract class MaBD   extends RoomDatabase{
+    public abstract DemoDAO dao();
+}

app/src/main/java/org/deguet/roomdemo/modele/DemoAlbum.java

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+package org.deguet.roomdemo.modele;
+
+import java.util.Date;
+
+import androidx.room.ColumnInfo;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+
+@Entity
+public class DemoAlbum {
+
+    @PrimaryKey(autoGenerate = true)
+    public Long id;
+
+    @ColumnInfo
+    public String nom;
+
+    @ColumnInfo
+    public String artiste;
+
+    @ColumnInfo
+    public Date dateDeSortie;
+
+}