how to auto refresh widget in Android Studio

widget.java

/**
 * Implementation of App Widget functionality.
 */
public class aiq_priceWidget extends AppWidgetProvider {

    static String CLICK_ACTION = "Clicked!";



    static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
                                int appWidgetId) {

        Intent intent = new Intent(context,aiq_priceWidget.class);
        intent.setAction(CLICK_ACTION);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);

        //current time
        String timeString =
                DateFormat.getTimeInstance(DateFormat.SHORT).format(new Date());

        //Paper Init
        Paper.init(context);

        //Reading context

        String priceBtc = Paper.book().read("BTC");
        String priceUsd = Paper.book().read("USD");
        String change = Paper.book().read("change");
        String timeStamp = Paper.book().read("timeStamp");

        // Construct the RemoteViews object
        RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.aiq_price_widget);
        views.setTextViewText(R.id.widget_tv_price_btc, priceBtc);
        views.setTextViewText(R.id.widget_tv_price_usd, priceUsd);
        views.setTextViewText(R.id.widget_tv_change, change);
        views.setTextViewText(R.id.widget_tv_time_stamp, timeStamp);
        views.setTextViewText(R.id.widget_tv_now_time,
                context.getResources().getString(
                        R.string.time, timeString));
        views.setOnClickPendingIntent(R.id.wrapper, pendingIntent);

        // Instruct the widget manager to update the widget
        appWidgetManager.updateAppWidget(appWidgetId, views);
    }


    @Override
    public void onReceive(Context context, Intent intent) {
        super.onReceive(context, intent);
        if(intent.getAction().equals(CLICK_ACTION))
            Toast.makeText(context, "Widget Clicked", Toast.LENGTH_SHORT).show();



    }

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        // There may be multiple widgets active, so update all of them
        for (int appWidgetId : appWidgetIds) {
            updateAppWidget(context, appWidgetManager, appWidgetId);
            Toast.makeText(context, "Widget has been updated! ", Toast.LENGTH_SHORT).show();
        }
    }

    @Override
    public void onEnabled(Context context) {
        // Enter relevant functionality for when the first widget is created
    }

    @Override
    public void onDisabled(Context context) {
        // Enter relevant functionality for when the last widget is disabled
    }

}