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      1 package com.example.android.wearable.watchface.provider;
      2 
      3 import android.support.wearable.complications.ComplicationData;
      4 import android.support.wearable.complications.ComplicationManager;
      5 import android.support.wearable.complications.ComplicationProviderService;
      6 import android.support.wearable.complications.ComplicationText;
      7 import android.util.Log;
      8 
      9 import java.util.Locale;
     10 
     11 /**
     12  * Example Watch Face Complication data provider provides a random number on every update.
     13  */
     14 public class RandomNumberProviderService extends ComplicationProviderService {
     15 
     16     private static final String TAG = "RandomNumberProvider";
     17 
     18     /*
     19      * Called when a complication has been activated. The method is for any one-time
     20      * (per complication) set-up.
     21      *
     22      * You can continue sending data for the active complicationId until onComplicationDeactivated()
     23      * is called.
     24      */
     25     @Override
     26     public void onComplicationActivated(
     27             int complicationId, int dataType, ComplicationManager complicationManager) {
     28         Log.d(TAG, "onComplicationActivated(): " + complicationId);
     29         super.onComplicationActivated(complicationId, dataType, complicationManager);
     30     }
     31 
     32     /*
     33      * Called when the complication needs updated data from your provider. There are four scenarios
     34      * when this will happen:
     35      *
     36      *   1. An active watch face complication is changed to use this provider
     37      *   2. A complication using this provider becomes active
     38      *   3. The period of time you specified in the manifest has elapsed (UPDATE_PERIOD_SECONDS)
     39      *   4. You triggered an update from your own class via the
     40      *       ProviderUpdateRequester.requestUpdate() method.
     41      */
     42     @Override
     43     public void onComplicationUpdate(
     44             int complicationId, int dataType, ComplicationManager complicationManager) {
     45         Log.d(TAG, "onComplicationUpdate()");
     46 
     47 
     48         // Retrieve your data, in this case, we simply create a random number to display.
     49         int randomNumber = (int) Math.floor(Math.random() * 10);
     50 
     51         String randomNumberText =
     52                 String.format(Locale.getDefault(), "%d!", randomNumber);
     53 
     54         ComplicationData complicationData = null;
     55 
     56         switch (dataType) {
     57             case ComplicationData.TYPE_RANGED_VALUE:
     58                 complicationData = new ComplicationData.Builder(ComplicationData.TYPE_RANGED_VALUE)
     59                         .setValue(randomNumber)
     60                         .setMinValue(0)
     61                         .setMaxValue(10)
     62                         .setShortText(ComplicationText.plainText(randomNumberText))
     63                         .build();
     64                 break;
     65             case ComplicationData.TYPE_SHORT_TEXT:
     66                 complicationData = new ComplicationData.Builder(ComplicationData.TYPE_SHORT_TEXT)
     67                         .setShortText(ComplicationText.plainText(randomNumberText))
     68                         .build();
     69                 break;
     70             case ComplicationData.TYPE_LONG_TEXT:
     71                 complicationData = new ComplicationData.Builder(ComplicationData.TYPE_LONG_TEXT)
     72                         .setLongText(
     73                                 ComplicationText.plainText("Random Number: " + randomNumberText))
     74                         .build();
     75                 break;
     76             default:
     77                 if (Log.isLoggable(TAG, Log.WARN)) {
     78                     Log.w(TAG, "Unexpected complication type " + dataType);
     79                 }
     80         }
     81 
     82         if (complicationData != null) {
     83             complicationManager.updateComplicationData(complicationId, complicationData);
     84         }
     85     }
     86 
     87     /*
     88      * Called when the complication has been deactivated. If you are updating the complication
     89      * manager outside of this class with updates, you will want to update your class to stop.
     90      */
     91     @Override
     92     public void onComplicationDeactivated(int complicationId) {
     93         Log.d(TAG, "onComplicationDeactivated(): " + complicationId);
     94         super.onComplicationDeactivated(complicationId);
     95     }
     96 }