TwoCellAppWidget.java :  » App » h2droid » com » frankcalise » h2droid » Android Open Source

package com.frankcalise.h2droid;

import java.text.SimpleDateFormat;
import java.util.Date;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.util.Log;
import android.widget.RemoteViews;

public class TwoCellAppWidget extends AppWidgetProvider {
  
  private double mAmount;
  private double mPercentGoal;
  
  // Intent to listen for to update Widget UI
  public static String FORCE_WIDGET_UPDATE = 
    "com.frankcalise.h2droid.FORCE_WIDGET_UPDATE2";
  
  @Override
  public void onUpdate(Context context,
             AppWidgetManager appWidgetManager,
             int[] appWidgetIds) {
    mAmount = mPercentGoal = -1;
    updateAmount(context, appWidgetManager, appWidgetIds);
  }
  
  @Override
  public void onReceive(Context context, Intent intent) {
    super.onReceive(context, intent);
    
    // Check if Intent received matches widget update string
    if (FORCE_WIDGET_UPDATE.equals(intent.getAction())) {
      // Get the passed in values to display
      mAmount = intent.getExtras().getDouble("AMOUNT");
      mPercentGoal = intent.getExtras().getDouble("PERCENT");
      
      // Update the UI
      updateAmount(context);
    } else {
      Log.d("WIDGET", intent.getAction());
    }
  }
  
  public void updateAmount(Context context,
               AppWidgetManager appWidgetManager,
               int[] appWidgetIds) {
    // Grab the data from today's entries
    // if the widget was just added
    if (mAmount < 0) {
      mAmount = 0;
        
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date now = new Date();
        String where = "'" + sdf.format(now) + "' = date(" + WaterProvider.KEY_DATE + ")";
        
        ContentResolver cr = context.getContentResolver();
        
        // Return all saved entries
        Cursor c = cr.query(WaterProvider.CONTENT_URI,
                    null, where, null, null);
        
        if (c.moveToFirst()) {
          do {
            String date = c.getString(WaterProvider.DATE_COLUMN);
            double metricAmount = c.getDouble(WaterProvider.AMOUNT_COLUMN);
            boolean isNonMetric = false;
            Entry e = new Entry(date, metricAmount, isNonMetric);
            
            mAmount += e.getNonMetricAmount();
          } while (c.moveToNext());
        }
        
        c.close();
    }
    
    // First time widget is placed, need percentage
    // of goal completed
    if (mPercentGoal < 0) {
      double prefsGoal = Settings.getAmount(context);
      mPercentGoal = Math.min(((mAmount / prefsGoal) * 100.0), 100.0);
    }
    
      int goalColor = context.getResources().getColor(R.color.positive_delta);
      
      if (mPercentGoal < 100) {
        goalColor = context.getResources().getColor(R.color.negative_delta);
      }
      
      Intent launchAppIntent = new Intent(context, h2droid.class);
      Intent addEntryAppIntent = new Intent(context, CustomEntryActivity.class);
      
      // Create new RemoteViews to set the text displayed
      // by the widget's TextView
      final int N = appWidgetIds.length;
      for (int i = 0; i < N; i++) {
        int appWidgetId = appWidgetIds[i];
        RemoteViews views = new RemoteViews(context.getPackageName(),
                          R.layout.two_cell_widget);
        // Set text for TextViews
        views.setTextViewText(R.id.widget_amount_text, String.format("%.1f fl oz", mAmount));
        views.setTextColor(R.id.widget_percent_text, goalColor);
        views.setTextViewText(R.id.widget_percent_text, String.format("%.1f%%", mPercentGoal));
        
        // Set onClick so user can launch the app
        // by touching the widget
        views.setOnClickPendingIntent(R.id.widget_title_text, PendingIntent.getActivity(context, 0, launchAppIntent, 0));
        views.setOnClickPendingIntent(R.id.widget_amount_text, PendingIntent.getActivity(context, 0, launchAppIntent, 0));
        views.setOnClickPendingIntent(R.id.widget_percent_text, PendingIntent.getActivity(context, 0, launchAppIntent, 0));
        views.setOnClickPendingIntent(R.id.widget_add_button, PendingIntent.getActivity(context, 0, addEntryAppIntent, 0));
        
        appWidgetManager.updateAppWidget(appWidgetId, views);
      }
  }
  
  // Obtain an instance of AppWidgetManager from the context
  // and use it to find widget IDs of active Hydrate widgets.
  // Then pass to updateAmount(Context, AppWidgetManager, int[])
  public void updateAmount(Context context) {
    ComponentName thisWidget = new ComponentName(context, AppWidget.class);
    
    AppWidgetManager appWidgetManager = 
      AppWidgetManager.getInstance(context);
    
    int[] appWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
    updateAmount(context, appWidgetManager, appWidgetIds);
  }
}