Working with greenDAO on Android

build.gradle

buildscript {
    repositories {
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.3'
        classpath 'org.greenrobot:greendao-gradle-plugin:3.2.2'
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

build.gradle

apply plugin: 'com.android.application'
apply plugin: 'org.greenrobot.greendao'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"
    defaultConfig {
        applicationId "ir.mhdr.a097"
        minSdkVersion 17
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'org.greenrobot:greendao:3.2.2'

    // This is only needed if you want to use encrypted databases
    compile 'net.zetetic:android-database-sqlcipher:3.5.6'

    testCompile 'junit:junit:4.12'
}

App.java

public class App extends Application {

    public static final boolean ENCRYPTED = false;

    @Override
    public void onCreate() {
        super.onCreate();

        DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(this, ENCRYPTED ? "notes-db-encrypted" : "notes-db");
        Database db = ENCRYPTED ? helper.getEncryptedWritableDb("super-secret") : helper.getWritableDb();
        Statics.daoSession = new DaoMaster(db).newSession();
    }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="ir.mhdr.a097">

    <application
        android:name=".App"
        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>

Statice.java

public class Statics {

    public static DaoSession daoSession;
}

Note.java

@Entity(indexes = {
        @Index(value = "text, date DESC", unique = true)
})
public class Note {

    @Id(autoincrement = true)
    private Long id;

    @Index(unique = true)
    private String uuid;

    @NotNull
    private String text;

    @Property(nameInDb = "date")
    private Date date;

    @Transient
    private int tempUsageCount;

@Generated(hash = 102375063)
public Note(Long id, String uuid, @NotNull String text, Date date) {
    this.id = id;
    this.uuid = uuid;
    this.text = text;
    this.date = date;
}
@Generated(hash = 1272611929)
public Note() {
}
public Long getId() {
    return this.id;
}
public void setId(Long id) {
    this.id = id;
}
public String getText() {
    return this.text;
}
public void setText(String text) {
    this.text = text;
}
public Date getDate() {
    return this.date;
}
public void setDate(Date date) {
    this.date = date;
}
public String getUuid() {
    return this.uuid;
}
public void setUuid(String uuid) {
    this.uuid = uuid;
}
}

MainActivity.java

public class MainActivity extends AppCompatActivity {

    private DaoSession daoSession;
    private NoteDao noteDao;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        daoSession = Statics.daoSession;
        noteDao = daoSession.getNoteDao();

        Note note = new Note();
        note.setUuid(UUID.randomUUID().toString());
        note.setDate(new Date());
        note.setText("Hello World");

        noteDao.save(note);
    }
}

if using Kotlin

android {
    ...
    sourceSets {
        main.java.srcDirs += 'build/generated/source/greendao'
    }
}

References
http://greenrobot.org/greendao/documentation/
https://github.com/mhdr/AndroidSamples/tree/master/097
https://github.com/greenrobot/greenDAO/issues/395