Data usage axis grow/shrink, other fixes.

When dragging vertical sweeps near edges, grow or shrink axis scale
to give users access to larger limits.  Triggers 10% for each 250ms
that user continues holding.  Change axis math to support arbitrary
ranges beyond [0,5GB].

Show "empty" message when no application details found.  Added strings
that didn't appear in default language.  Better sweep margins using
dip instead of scale units.  Format time ranges in local time instead
of UTC.  Only show dashed estimate when it would reach near warning
or limit.  Extend app usage series until "now" when buckets missing.

Bug: 5096685, 5092538, 5058158, 5058114, 5058024, 4643457
Change-Id: I45cf33f7f3baeba1bfa5b21f31cb0a12006f62fa

1 files changed, 15 insertions, 6 deletions

diff --git a/src/com/android/settings/DataUsageSummary.java b/src/com/android/settings/DataUsageSummary.java
index d87080f..8581421 100644
--- a/src/com/android/settings/DataUsageSummary.java
+++ b/src/com/android/settings/DataUsageSummary.java
@@ -182,6 +182,7 @@ public class DataUsageSummary extends Fragment {
 
     private DataUsageChartView mChart;
     private TextView mUsageSummary;
+    private TextView mEmpty;
 
     private View mAppDetail;
     private TextView mAppTitle;
@@ -305,6 +306,7 @@ public class DataUsageSummary extends Fragment {
         }
 
         mUsageSummary = (TextView) mHeader.findViewById(R.id.usage_summary);
+        mEmpty = (TextView) mHeader.findViewById(android.R.id.empty);
 
         // only assign layout transitions once first layout is finished
         mListView.getViewTreeObserver().addOnGlobalLayoutListener(mFirstLayoutListener);
@@ -986,7 +988,7 @@ public class DataUsageSummary extends Fragment {
 
         final long totalBytes = entry != null ? entry.rxBytes + entry.txBytes : 0;
         final String totalPhrase = Formatter.formatFileSize(context, totalBytes);
-        final String rangePhrase = formatDateRangeUtc(context, start, end);
+        final String rangePhrase = formatDateRange(context, start, end, null);
 
         mUsageSummary.setText(
                 getString(R.string.data_usage_total_during_range, totalPhrase, rangePhrase));
@@ -1002,11 +1004,18 @@ public class DataUsageSummary extends Fragment {
         /** {@inheritDoc} */
         public void onLoadFinished(Loader<NetworkStats> loader, NetworkStats data) {
             mAdapter.bindStats(data);
+            updateEmptyVisible();
         }
 
         /** {@inheritDoc} */
         public void onLoaderReset(Loader<NetworkStats> loader) {
             mAdapter.bindStats(null);
+            updateEmptyVisible();
+        }
+
+        private void updateEmptyVisible() {
+            final boolean isEmpty = mAdapter.isEmpty() && !isAppDetailMode();
+            mEmpty.setVisibility(isEmpty ? View.VISIBLE : View.GONE);
         }
     };
 
@@ -1063,7 +1072,7 @@ public class DataUsageSummary extends Fragment {
         }
 
         public CycleItem(Context context, long start, long end) {
-            this.label = formatDateRangeUtc(context, start, end);
+            this.label = formatDateRange(context, start, end, Time.TIMEZONE_UTC);
             this.start = start;
             this.end = end;
         }
@@ -1078,7 +1087,7 @@ public class DataUsageSummary extends Fragment {
     private static final java.util.Formatter sFormatter = new java.util.Formatter(
             sBuilder, Locale.getDefault());
 
-    private static String formatDateRangeUtc(Context context, long start, long end) {
+    private static String formatDateRange(Context context, long start, long end, String timezone) {
         synchronized (sBuilder) {
             int flags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_ABBREV_MONTH;
             if (Time.getJulianDay(start, 0) == Time.getJulianDay(end, 0)) {
@@ -1087,8 +1096,8 @@ public class DataUsageSummary extends Fragment {
             }
 
             sBuilder.setLength(0);
-            return DateUtils.formatDateRange(
-                    context, sFormatter, start, end, flags, Time.TIMEZONE_UTC).toString();
+            return DateUtils
+                    .formatDateRange(context, sFormatter, start, end, flags, timezone).toString();
         }
     }
 
@@ -1197,7 +1206,7 @@ public class DataUsageSummary extends Fragment {
 
         @Override
         public long getItemId(int position) {
-            return position;
+            return mItems.get(position).uid;
         }
 
         @Override