Data usage performance, bugfixes.

Optimize launch times by removing unneeded extra work, including
reloading data and tightening chart invalidation.  Fix invalidation
storm when sweeps overlap.  Move chart history into loader instead of
blocking main thread.

Disable "Split 4G" mode until telephony support is ready, and combine
any existing split policies.

Async loading of application details.  Remove alpha transitions to
speed up on some hardware.  Hide menus in detail mode.  Delay kicking
off force-poll.  Fix inset padding on large devices.

Bug: 5284321, 5273918, 5263056
Change-Id: I746d79c05e2a6ea97bbdbdc5d807e208328d1373

src/com/android/settings/widget/ChartDataUsageView.java

@@ -30,6 +30,7 @@ import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
 
+import com.android.internal.util.Objects;
 import com.android.settings.R;
 import com.android.settings.widget.ChartSweepView.OnSweepListener;
 
@@ -214,7 +215,8 @@ public class ChartDataUsageView extends ChartView {
 
         // always show known data and policy lines
         final long maxSweep = Math.max(mSweepWarning.getValue(), mSweepLimit.getValue());
-        final long maxVisible = Math.max(mSeries.getMaxVisible(), maxSweep) * 12 / 10;
+        final long maxSeries = Math.max(mSeries.getMaxVisible(), mDetailSeries.getMaxVisible());
+        final long maxVisible = Math.max(maxSeries, maxSweep) * 12 / 10;
         final long maxDefault = Math.max(maxVisible, 2 * GB_IN_BYTES);
         newMax = Math.max(maxDefault, newMax);
 
@@ -222,12 +224,14 @@ public class ChartDataUsageView extends ChartView {
         if (newMax != mVertMax) {
             mVertMax = newMax;
 
-            mVert.setBounds(0L, newMax);
+            final boolean changed = mVert.setBounds(0L, newMax);
             mSweepWarning.setValidRange(0L, newMax);
             mSweepLimit.setValidRange(0L, newMax);
 
-            mSeries.generatePath();
-            mDetailSeries.generatePath();
+            if (changed) {
+                mSeries.invalidatePath();
+                mDetailSeries.invalidatePath();
+            }
 
             mGrid.invalidate();
 
@@ -263,6 +267,10 @@ public class ChartDataUsageView extends ChartView {
             interestLine = mSweepLimit.getValue();
         }
 
+        if (interestLine < 0) {
+            interestLine = Long.MAX_VALUE;
+        }
+
         final boolean estimateVisible = (maxEstimate >= interestLine * 7 / 10);
         mSeries.setEstimateVisible(estimateVisible);
     }
@@ -354,8 +362,10 @@ public class ChartDataUsageView extends ChartView {
      * last "week" of available data, without triggering listener events.
      */
     public void setVisibleRange(long visibleStart, long visibleEnd) {
-        mHoriz.setBounds(visibleStart, visibleEnd);
+        final boolean changed = mHoriz.setBounds(visibleStart, visibleEnd);
         mGrid.setBounds(visibleStart, visibleEnd);
+        mSeries.setBounds(visibleStart, visibleEnd);
+        mDetailSeries.setBounds(visibleStart, visibleEnd);
 
         final long validStart = Math.max(visibleStart, getStatsStart());
         final long validEnd = Math.min(visibleEnd, getStatsEnd());
@@ -378,7 +388,10 @@ public class ChartDataUsageView extends ChartView {
         mSweepRight.setValue(sweepMax);
 
         requestLayout();
-        mSeries.generatePath();
+        if (changed) {
+            mSeries.invalidatePath();
+            mDetailSeries.invalidatePath();
+        }
 
         updateVertAxisBounds(null);
         updateEstimateVisible();
@@ -410,15 +423,30 @@ public class ChartDataUsageView extends ChartView {
             setBounds(currentTime - DateUtils.DAY_IN_MILLIS * 30, currentTime);
         }
 
-        /** {@inheritDoc} */
-        public void setBounds(long min, long max) {
-            mMin = min;
-            mMax = max;
+        @Override
+        public int hashCode() {
+            return Objects.hashCode(mMin, mMax, mSize);
         }
 
         /** {@inheritDoc} */
-        public void setSize(float size) {
-            this.mSize = size;
+        public boolean setBounds(long min, long max) {
+            if (mMin != min || mMax != max) {
+                mMin = min;
+                mMax = max;
+                return true;
+            } else {
+                return false;
+            }
+        }
+
+        /** {@inheritDoc} */
+        public boolean setSize(float size) {
+            if (mSize != size) {
+                mSize = size;
+                return true;
+            } else {
+                return false;
+            }
         }
 
         /** {@inheritDoc} */
@@ -461,15 +489,30 @@ public class ChartDataUsageView extends ChartView {
         private long mMax;
         private float mSize;
 
-        /** {@inheritDoc} */
-        public void setBounds(long min, long max) {
-            mMin = min;
-            mMax = max;
+        @Override
+        public int hashCode() {
+            return Objects.hashCode(mMin, mMax, mSize);
         }
 
         /** {@inheritDoc} */
-        public void setSize(float size) {
-            mSize = size;
+        public boolean setBounds(long min, long max) {
+            if (mMin != min || mMax != max) {
+                mMin = min;
+                mMax = max;
+                return true;
+            } else {
+                return false;
+            }
+        }
+
+        /** {@inheritDoc} */
+        public boolean setSize(float size) {
+            if (mSize != size) {
+                mSize = size;
+                return true;
+            } else {
+                return false;
+            }
         }
 
         /** {@inheritDoc} */