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Realmについて

Last updated at Posted at 2020-09-01

#Gradle設定
【初学者向け】AndroidでRealmを実装する

KotlinでRealm(他のDBとの概要比較)

[Kotlin + Android でRealmをつかってみた。]
(https://qiita.com/Juju_62q/items/eaf55c7722b826156404)

Projectのbuild.gradleに下記を加えます。

dependencies {
        classpath "io.realm:realm-gradle-plugin:3.5.0"
}

Moduleのbuild.gradleに下記を加えます。
今回Recyclerviewを使うのでそれも追加します。

app/build.gradle

apply plugin: 'kotlin-kapt'
apply plugin: 'realm-android'

//省略
dependencies {
    //省略
    //Realm
    implementation 'io.realm:android-adapters:3.1.0'

    //recyclerview
    implementation 'androidx.recyclerview:recyclerview:1.1.0'

}

#条件指定
or文の例

return mRealm.where(Tasks::class.java)
            .equalTo("remember_date",remindDate[0])
            .or()
            .equalTo("remember_date",remindDate[1])
            .or()
            .equalTo("remember_date",remindDate[2])
            .or()
            .equalTo("remember_date",remindDate[3])
            .findAll()
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