AppWidgetUpdateHandlerBase.java

package com.ianhanniballake.contractiontimer.appwidget;

import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;

/**
 * Handles updating all App Widgets
 */
public class AppWidgetUpdateHandlerBase extends AppWidgetUpdateHandler {
    /**
     * Updates all instances of the Control App Widgets
     *
     * @param context          Context used to trigger updates
     * @param appWidgetManager AppWidgetManager instance
     */
    private static void updateControlWidgets(final Context context, final AppWidgetManager appWidgetManager) {
        final boolean controlWidgetsExist = appWidgetManager.getAppWidgetIds(new ComponentName(context,
                ControlAppWidgetProvider.class)).length > 0;
        if (controlWidgetsExist)
            context.startService(new Intent(context, ControlAppWidgetService.class));
    }

    /**
     * Updates all instances of the Toggle App Widgets
     *
     * @param context          Context used to trigger updates
     * @param appWidgetManager AppWidgetManager instance
     */
    private static void updateToggleWidgets(final Context context, final AppWidgetManager appWidgetManager) {
        final boolean toggleWidgetsExist = appWidgetManager.getAppWidgetIds(new ComponentName(context,
                ToggleAppWidgetProvider.class)).length > 0;
        if (toggleWidgetsExist)
            context.startService(new Intent(context, ToggleAppWidgetService.class));
    }

    /**
     * Updates all App Widgets with the latest information. This should be called whenever a contraction is updated
     *
     * @param context Context used to trigger updates
     */
    @Override
    public void updateAllWidgets(final Context context) {
        final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
        AppWidgetUpdateHandlerBase.updateToggleWidgets(context, appWidgetManager);
        AppWidgetUpdateHandlerBase.updateControlWidgets(context, appWidgetManager);
    }
}