AboutActivity.java

package com.freerdp.freerdpcore.presentation;
 
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.nfc.FormatException;
import android.os.Build;
import android.os.Bundle;
import androidx.core.text.TextUtilsCompat;
import androidx.appcompat.app.AppCompatActivity;
import android.util.Log;
import android.webkit.WebSettings;
import android.webkit.WebView;
 
import com.freerdp.freerdpcore.R;
import com.freerdp.freerdpcore.services.LibFreeRDP;
 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Formatter;
import java.util.IllegalFormatException;
import java.util.Locale;
 
public class AboutActivity extends AppCompatActivity
{
  private static final String TAG = AboutActivity.class.toString();
  private WebView mWebView;
 
  @Override protected void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_about);
    mWebView = findViewById(R.id.activity_about_webview);
  }
 
  @Override protected void onResume()
  {
    populate();
    super.onResume();
  }
 
  private void populate()
  {
    StringBuilder total = new StringBuilder();
 
    String filename = "about_phone.html";
    if ((getResources().getConfiguration().screenLayout &
         Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE)
    {
      filename = "about.html";
    }
    Locale def = Locale.getDefault();
    String prefix = def.getLanguage().toLowerCase(def);
 
    String dir = prefix + "_about_page/";
    String file = dir + filename;
    InputStream is;
    try
    {
      is = getAssets().open(file);
      is.close();
    }
    catch (IOException e)
    {
      Log.e(TAG, "Missing localized asset " + file, e);
      dir = "about_page/";
      file = dir + filename;
    }
 
    try
    {
      try (BufferedReader r =
               new BufferedReader(new InputStreamReader(getAssets().open(file))))
      {
        String line;
        while ((line = r.readLine()) != null)
        {
          total.append(line);
          total.append("\n");
        }
      }
    }
    catch (IOException e)
    {
      Log.e(TAG, "Could not read about page " + file, e);
    }
 
    // append FreeRDP core version to app version
    // get app version
    String version;
    try
    {
      version = getPackageManager().getPackageInfo(getPackageName(), 0).versionName;
    }
    catch (PackageManager.NameNotFoundException e)
    {
      version = "unknown";
    }
    version = version + " (" + LibFreeRDP.getVersion() + ")";
 
    WebSettings settings = mWebView.getSettings();
    settings.setDomStorageEnabled(true);
    settings.setUseWideViewPort(true);
    settings.setLoadWithOverviewMode(true);
    settings.setSupportZoom(true);
 
    final String base = "file:///android_asset/" + dir;
 
    final String rawHtml = total.toString();
    final String html = rawHtml.replaceAll("%AFREERDP_VERSION%", version)
                            .replaceAll("%SYSTEM_VERSION%", Build.VERSION.RELEASE)
                            .replaceAll("%DEVICE_MODEL%", Build.MODEL);
 
    mWebView.loadDataWithBaseURL(base, html, "text/html", null, "about:blank");
  }
}