Limit 'last active' device timestamp to day level precision

Closes #4614
// FREEBIE

src/org/thoughtcrime/securesms/DeviceListItem.java

@@ -39,14 +39,14 @@ public class DeviceListItem extends LinearLayout {
     else                                         this.name.setText(deviceInfo.getName());
 
     this.created.setText(getContext().getString(R.string.DeviceListItem_linked_s,
-                                                DateUtils.getExtendedRelativeTimeSpanString(getContext(),
-                                                                                            Locale.getDefault(),
-                                                                                            deviceInfo.getCreated())));
+                                                DateUtils.getDayPrecisionTimeSpanString(getContext(),
+                                                                                        Locale.getDefault(),
+                                                                                        deviceInfo.getCreated())));
 
     this.lastActive.setText(getContext().getString(R.string.DeviceListItem_last_active_s,
-                                                   DateUtils.getExtendedRelativeTimeSpanString(getContext(),
-                                                                                               Locale.getDefault(),
-                                                                                               deviceInfo.getLastSeen())));
+                                                   DateUtils.getDayPrecisionTimeSpanString(getContext(),
+                                                                                           Locale.getDefault(),
+                                                                                           deviceInfo.getLastSeen())));
 
     this.deviceId = deviceInfo.getId();
   }

src/org/thoughtcrime/securesms/util/DateUtils.java

@@ -83,6 +83,22 @@ public class DateUtils extends android.text.format.DateUtils {
     }
   }
 
+  public static String getDayPrecisionTimeSpanString(Context context, Locale locale, long timestamp) {
+    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMdd");
+
+    if (simpleDateFormat.format(System.currentTimeMillis()).equals(simpleDateFormat.format(timestamp))) {
+      return "Today";
+    } else {
+      String format;
+
+      if      (isWithin(timestamp, 6, TimeUnit.DAYS))   format = "EEE ";
+      else if (isWithin(timestamp, 365, TimeUnit.DAYS)) format = "MMM d";
+      else                                              format = "MMM d, yyy";
+
+      return getFormattedDateTime(timestamp, format, locale);
+    }
+  }
+
   public static SimpleDateFormat getDetailedDateFormatter(Context context, Locale locale) {
     String dateFormatPattern;