EulaDialogFragment.java

package com.google.android.stardroid.activities.dialogs;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.text.Html;
import android.text.Spanned;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;

import com.google.android.stardroid.R;
import com.google.android.stardroid.StardroidApplication;
import com.google.android.stardroid.inject.HasComponent;
import com.google.android.stardroid.util.Analytics;
import com.google.android.stardroid.util.MiscUtil;

import javax.inject.Inject;

/**
 * End User License agreement dialog.
 * Created by johntaylor on 4/3/16.
 */
public class EulaDialogFragment extends DialogFragment {
  private static final String TAG = MiscUtil.getTag(EulaDialogFragment.class);
  @Inject Activity parentActivity;
  @Inject Analytics analytics;
  private EulaAcceptanceListener resultListener;

  public interface EulaAcceptanceListener {
    void eulaAccepted();
    void eulaRejected();
  }

  public interface ActivityComponent {
    void inject(EulaDialogFragment fragment);
  }

  public void setEulaAcceptanceListener(EulaAcceptanceListener resultListener) {
    this.resultListener = resultListener;
  }

  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
    // Activities using this dialog MUST implement this interface.  Obviously.
    ((HasComponent<ActivityComponent>) getActivity()).getComponent().inject(this);

    LayoutInflater inflater = parentActivity.getLayoutInflater();
    View view = inflater.inflate(R.layout.tos_view, null);

    String apologyText = parentActivity.getString(R.string.language_apology_text);
    Spanned formattedApologyText = Html.fromHtml(apologyText);
    TextView apologyTextView = (TextView) view.findViewById(R.id.language_apology_box_text);
    apologyTextView.setText(formattedApologyText, TextView.BufferType.SPANNABLE);

    String eulaText = String.format(parentActivity.getString(R.string.eula_text), getVersionName());
    Spanned formattedEulaText = Html.fromHtml(eulaText);
    TextView eulaTextView = (TextView) view.findViewById(R.id.eula_box_text);
    eulaTextView.setText(formattedEulaText, TextView.BufferType.SPANNABLE);

    AlertDialog.Builder tosDialogBuilder = new AlertDialog.Builder(parentActivity)
        .setTitle(R.string.menu_tos)
        .setView(view);
    if (resultListener != null) {
      tosDialogBuilder
          .setPositiveButton(R.string.dialog_accept,
              new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                  acceptEula(dialog);
                }
              })
          .setNegativeButton(R.string.dialog_decline,
              new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                  rejectEula(dialog);
                }
              });
    }
    return tosDialogBuilder.create();
  }

  private void acceptEula(DialogInterface dialog) {
    Log.d(TAG, "TOS Dialog closed.  User accepts.");
    dialog.dismiss();
    analytics.trackEvent(
        Analytics.APP_CATEGORY, Analytics.TOS_ACCEPT, Analytics.TOS_ACCEPTED, 1);
    if (resultListener != null) {
      resultListener.eulaAccepted();
    }
  }

  private void rejectEula(DialogInterface dialog) {
    Log.d(TAG, "TOS Dialog closed.  User declines.");
    dialog.dismiss();
    analytics.trackEvent(
        Analytics.APP_CATEGORY, Analytics.TOS_ACCEPT, Analytics.TOS_REJECTED, 0);
    if (resultListener != null) {
      resultListener.eulaRejected();
    }
  }

  private String getVersionName() {
    return ((StardroidApplication) parentActivity.getApplication()).getVersionName();
  }

  @Override
  public void onCancel(DialogInterface dialog) {
    rejectEula(dialog);
  }
}