com.cw.litenote.util.EULA_dlg.java Source code

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Here is the source code for com.cw.litenote.util.EULA_dlg.java

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package com.cw.litenote.util;
/**
 * This file provides simple End User License Agreement
 * It shows a simple dialog with the license text, and two buttons.
 * If user clicks on 'cancel' button, app closes and user will not be granted access to app.
 * If user clicks on 'accept' button, app access is allowed and this choice is saved in preferences
 * so next time this will not show, until next upgrade.
 */

import com.cw.litenote.R;

import android.Manifest;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.preference.PreferenceManager;
import android.support.v4.app.ActivityCompat;

import static android.os.Build.VERSION_CODES.M;

public class EULA_dlg {

    private String EULA_PREFIX = "appEULA";
    private Activity mAct;
    SharedPreferences prefs;
    String eulaKey;

    public EULA_dlg(Activity context) {
        mAct = context;
    }

    private PackageInfo getPackageInfo() {
        PackageInfo info = null;
        try {
            info = mAct.getPackageManager().getPackageInfo(mAct.getPackageName(), PackageManager.GET_ACTIVITIES);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return info;
    }

    public void show() {
        System.out.println("EULA_dlg / _show");
        PackageInfo versionInfo = getPackageInfo();
        prefs = PreferenceManager.getDefaultSharedPreferences(mAct);
        // The eulaKey changes every time you increment the version number in
        // the AndroidManifest.xml
        eulaKey = EULA_PREFIX + versionInfo.versionCode;

        boolean bAlreadyAccepted = prefs.getBoolean(eulaKey, false);

        if (bAlreadyAccepted == false) {

            // EULA title
            String title = mAct.getString(R.string.app_name) + " v" + versionInfo.versionName;

            // EULA text
            String message = mAct.getString(R.string.EULA_string);

            // Disable orientation changes, to prevent parent activity
            // re-initialization
            //            act.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

            AlertDialog.Builder builder = new AlertDialog.Builder(mAct).setTitle(title).setMessage(message)
                    .setCancelable(false).setPositiveButton(R.string.accept, new Dialog.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialogInterface, int i) {
                            applyPreference();

                            // check permission first time, request all necessary permissions
                            if (Build.VERSION.SDK_INT >= M)//API23
                            {
                                int permissionCamera = ActivityCompat.checkSelfPermission(mAct,
                                        Manifest.permission.CAMERA);
                                if (permissionCamera != PackageManager.PERMISSION_GRANTED) {
                                    ActivityCompat.requestPermissions(mAct,
                                            new String[] { Manifest.permission.CAMERA,
                                                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
                                                    Manifest.permission.READ_EXTERNAL_STORAGE,
                                                    Manifest.permission.READ_PHONE_STATE },
                                            Util.PERMISSIONS_REQUEST_ALL);
                                }
                            }

                            // Close dialog
                            dialogInterface.dismiss();

                            // Enable orientation changes based on
                            // device's sensor
                            //                                    act.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
                        }
                    }).setNegativeButton(android.R.string.cancel, new Dialog.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            // Close the activity as they have declined
                            // the EULA
                            mAct.finish();
                            //                                    act.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
                        }

                    });
            builder.create().show();
        }
    }

    void applyPreference() {
        // Mark this version as read.
        SharedPreferences.Editor editor = prefs.edit();
        editor.putBoolean(eulaKey, true);
        editor.apply();
    }
}