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[Android] WebViewのLocalStorageをオンにする

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 やりたいこと

AndroidのWebViewはデフォルトでは、ローカルストレージをWeb側から使用しようとするとエラーになる為、解消したい

実装

MainActivity.kt
class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        main_web_view.settings.javaScriptEnabled = true // JavaSrciptの有効化
        main_web_view.settings.domStorageEnabled = true // ローカルストレージ有効化

        main_web_view.loadUrl("url")
    }
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

    <WebView
            android:id="@+id/main_web_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent"/>

</android.support.constraint.ConstraintLayout>
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