BlockColor-Engine/build/android/src/main/java/com/multicraft/game/RateMe.java

package net.blockcolor.game;

import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.util.Log;
import android.view.View;
import android.widget.RatingBar;

import java.lang.ref.WeakReference;
import java.util.Date;

class RateMe {

    private static final int INSTALL_DAYS = 3;
    private static final int LAUNCH_TIMES = 3;
    private static final boolean DEBUG = false;
    private static final String TAG = RateMe.class.getSimpleName();
    private static final String GOOGLE_PLAY = "https://play.google.com/store/apps/details?id=";
    private static final String PREF_NAME = "RateMe";
    private static final String KEY_INSTALL_DATE = "rta_install_date";
    private static final String KEY_LAUNCH_TIMES = "rta_launch_times";
    private static final String KEY_OPT_OUT = "rta_opt_out";
    private static Date mInstallDate = new Date();
    private static int mLaunchTimes = 0;
    private static boolean mOptOut = false;
    private static DialogsCallback sCallback = null;

    private static WeakReference<Activity> mainActivityRef = null;

    static void setListener(DialogsCallback callback) {
        sCallback = callback;
    }

    static void onStart(Context context) {
        mainActivityRef = new WeakReference<>((Activity) context);
        SharedPreferences pref = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
        Editor editor = pref.edit();
        // If it is the first launch, save the date in shared preference.
        if (pref.getLong(KEY_INSTALL_DATE, 0) == 0L) {
            storeInstallDate(context, editor);
        }
        // Increment launch times
        int launchTimes = pref.getInt(KEY_LAUNCH_TIMES, 0);
        launchTimes++;
        editor.putInt(KEY_LAUNCH_TIMES, launchTimes);

        editor.apply();

        mInstallDate = new Date(pref.getLong(KEY_INSTALL_DATE, 0));
        mLaunchTimes = pref.getInt(KEY_LAUNCH_TIMES, 0);
        mOptOut = pref.getBoolean(KEY_OPT_OUT, false);

        printStatus();
    }

    static boolean shouldShowRateDialog() {
        if (mOptOut) {
            return false;
        } else {
            if (mLaunchTimes >= LAUNCH_TIMES) {
                return true;
            }
            long threshold = INSTALL_DAYS * 24 * 60 * 60 * 1000L;
            return new Date().getTime() - mInstallDate.getTime() >= threshold;
        }
    }

    static void showRateDialog() {
        final Activity activity = mainActivityRef.get();
        final Dialog dialog = new Dialog(activity, R.style.DialogTheme);
        dialog.setCanceledOnTouchOutside(false);
        if (Build.VERSION.SDK_INT >= 19) {
            dialog.getWindow().getDecorView().setSystemUiVisibility(
                    View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
        }
        dialog.setContentView(R.layout.rate_dialog);
        dialog.setTitle(R.string.rta_dialog_title);

        RatingBar ratingBar = dialog.findViewById(R.id.ratingBar);
        ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
            @Override
            public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
                if (rating >= 4) {
                    if (sCallback != null) {
                        sCallback.onPositive("RateMe");
                    }
                    dialog.dismiss();
                    String appPackage = activity.getPackageName();
                    Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(GOOGLE_PLAY + appPackage));
                    activity.startActivity(intent);
                    setOptOut(activity, true);
                } else {
                    if (sCallback != null) {
                        sCallback.onNegative("RateMe");
                    }
                    dialog.dismiss();
                    clearSharedPreferences(activity);
                }
            }
        });
        dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
            @Override
            public void onCancel(DialogInterface dialog) {
                if (sCallback != null) {
                    sCallback.onNeutral("RateMe");
                }
                clearSharedPreferences(activity);
            }
        });
        if (!activity.isFinishing()) {
            dialog.show();
        } else {
            if (sCallback != null) {
                sCallback.onNegative("RateMe");
            }
        }
    }

    private static void clearSharedPreferences(Activity context) {
        SharedPreferences pref = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
        Editor editor = pref.edit();
        editor.remove(KEY_INSTALL_DATE);
        editor.remove(KEY_LAUNCH_TIMES);
        editor.apply();
    }

    private static void setOptOut(final Activity context, boolean optOut) {
        SharedPreferences pref = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
        Editor editor = pref.edit();
        editor.putBoolean(KEY_OPT_OUT, optOut);
        editor.apply();
        mOptOut = optOut;
    }

    private static void storeInstallDate(final Context context, SharedPreferences.Editor editor) {
        Date installDate = new Date();
        PackageManager packMan = context.getPackageManager();
        try {
            PackageInfo pkgInfo = packMan.getPackageInfo(context.getPackageName(), 0);
            installDate = new Date(pkgInfo.firstInstallTime);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        editor.putLong(KEY_INSTALL_DATE, installDate.getTime());
        log("First install: " + installDate.toString());
    }

    private static void printStatus() {
        log("*** RateMe Status ***");
        log("Install Date: " + mInstallDate);
        log("Launch Times: " + mLaunchTimes);
        log("Opt out: " + mOptOut);
    }

    private static void log(String message) {
        if (DEBUG) {
            Log.v(TAG, message);
        }
    }

}