gistfile1.java

    private void findTotalWalkingDistance(JSONArray arrayOfRecords) {
        try {
            //Each record has activity_type and array of statistics. Traverse to  activity_type = Walking
            for (int ii = 0; ii < arrayOfRecords.length(); ii++) {
                JSONObject statObject = (JSONObject) arrayOfRecords.get(ii);
                if ("Walking".equalsIgnoreCase(statObject.getString("activity_type"))) {
                    //Each activity_type has array of stats, navigate to "Overall" statistic to find the total distance walked.
                    JSONArray walkingStats = statObject.getJSONArray("stats");
                    for (int jj = 0; jj < walkingStats.length(); jj++) {
                        JSONObject iWalkingStat = (JSONObject) walkingStats.get(jj);
                        if ("Overall".equalsIgnoreCase(iWalkingStat.getString("stat_type"))) {
                            long totalWalkingDistanceMeters = iWalkingStat.getLong("value");
                            double totalWalkingDistanceMiles = totalWalkingDistanceMeters * 0.00062137;
                            displayTotalWalkingDistance(totalWalkingDistanceMiles);
                            return;
                        }
                    }
                }
            }
            displayToast("Something went wrong!!!");
        } catch (JSONException e) {
            displayToast("Exception occured:(");            
            e.printStackTrace();
            resetUi();
        }
    }