[JAVA] The story that the forced update could not be implemented

What is written

1. Why the forced update could not be done
2. How to get the version directly from the Play Store (alternative)

The reason why the forced update could not be done

--When you install the apk created in the internal test on the actual machine There were times when the dialog appeared and times when it did not appear. --The regularity of this event could not be found. ――The only thing I can say is that 13 hours have passed since I uploaded the apk to the internal test. Dialogs were often displayed.

How to get the version directly from the play store (alternative)

MainActivity.java

public class MainActivit {
@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //Variable to put http request
        Uri.Builder builder = new Uri.Builder();
        AsyncHttpRequest task = new AsyncHttpRequest(this);
        //Find out the version of the app in the store
        task.execute(builder);
}

AsyncHttpRequest.java

//Asynchronous communication class will result in an error
public class AsyncHttpRequest extends AsyncTask<Uri.Builder, Void, String> {
    /**
     *Caller Activity
     */
    private Activity mainActivity;
    /**
     *Store app version
     */
    private String newVersion;
    /**
     *Shared resources
     */
    private SharedPreferences sharedPreferences;

    public AsyncHttpRequest(Activity activity) {
        //Caller activity
        this.mainActivity = activity;
    }

    @Override
    protected String doInBackground(Uri.Builder... builder) {
        //http request throwing process
        this.newVersion = "";
        String lang = getLocaleLang();
        try {
            //Information at the time of communication is summarized in a constant class
            this.newVersion = Jsoup.connect(PlayStoreConstants.STORE_BASE_URL + PlayStoreConstants.STORE_ID + "&locale=" + lang)
                    .timeout(PlayStoreConstants.TIMEOUT)
                    .userAgent("Mozilla/5.0 (Windows; U; WindowsNT 5.1; en-US; rv1.8.1.6) Gecko/20070725 Firefox/2.0.0.6")
                    .referrer(PlayStoreConstants.REFERRER)
                    .get()
                    .select(PlayStoreConstants.CSS_QUERY)
                    .get(7)
                    .ownText();
            //Save the version of the store and use it in Activity
            sharedPreferences = this.mainActivity.getSharedPreferences("version", MODE_PRIVATE);
            SharedPreferences.Editor editor = sharedPreferences.edit();
            editor.putString("storeVersion", this.newVersion);
            editor.apply();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return this.newVersion;
    }
   /**
     *Method to get the language of the terminal
     */
    public String getLocaleLang() {
        String localeLanguage = Locale.getDefault().getLanguage();
        return localeLanguage;
    }
}

PlayStoreConstants.java

/**
 *Play store communication constant class
 */
public class PlayStoreConstants {
    /**
     *Store URL
     */
    public static final String STORE_BASE_URL = "https://play.google.com/store/apps/details?id=";
    /**
     *Store ID
     */
    //https://play.google.com/store/apps/details?id=hoge part of hoge
    public static final String STORE_ID = "hoge";
    /**
     *Store details screen URL
     */
    public static final String STORE_DETAIL_URL = "market://details?id=";
    /**
     *Store communication timeout time
     */
    public static final int TIMEOUT = 30000;
    /**
     *Referrer header
     * (To prevent HTTP 403 errors)
     */
    public static final String REFERRER = "http://www.google.com";
    /**
     *CSS query
     */
    public static final String CSS_QUERY = ".hAyfc .htlgb";
}