How to load html file in Android WebView from SD Card

This script demonstrates how to load an html file located in SD Card in “SomeFolder” directory (you can change the folder’s name) into Android WebView.

Please note that you need to add this permissions in your manifest:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

MainActivity.java

package com.zofiakreasi.webviewTest;

import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;

public class MainActivity extends AppCompatActivity {

    WebView webview;
    String folderName = "SomeFolder";

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

        String appPath = Environment.getExternalStorageDirectory().toString() + "/" + folderName + "/";

        webview = (WebView) findViewById(R.id.webView);
        WebSettings webSettings = webview.getSettings();
        webSettings.setJavaScriptEnabled(true);

        webview.loadUrl("file://" + appPath + "index.html");
    }
}