Larger touch targets, snap to persisted value.

Extend ListView content to screen edges, and use InsetBoundsDrawable
to draw separator and divider with expected padding.  Sweep touch
targets are now much larger.

Snap sweep to persisted value, and fix NFE when parsing label value.

Bug: 5274249
Bug: 5262865
Bug: 5242857
Change-Id: Ifa0f3e622767d5b4dc85a73d6340207e6038a429

7 files changed, 271 insertions, 30 deletions

diff --git a/src/com/android/settings/DataUsageSummary.java b/src/com/android/settings/DataUsageSummary.java
index 87ce772..417c525 100644
--- a/src/com/android/settings/DataUsageSummary.java
+++ b/src/com/android/settings/DataUsageSummary.java
@@ -64,7 +64,9 @@ import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.res.Resources;
 import android.graphics.Color;
+import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
+import android.graphics.drawable.InsetDrawable;
 import android.net.ConnectivityManager;
 import android.net.INetworkPolicyManager;
 import android.net.INetworkStatsService;
@@ -120,6 +122,8 @@ import android.widget.TabWidget;
 import android.widget.TextView;
 
 import com.android.internal.telephony.Phone;
+import com.android.settings.drawable.InsetBoundsDrawable;
+import com.android.settings.drawable.DrawableWrapper;
 import com.android.settings.net.NetworkPolicyEditor;
 import com.android.settings.net.SummaryForAllUidLoader;
 import com.android.settings.widget.ChartDataUsageView;
@@ -275,7 +279,12 @@ public class DataUsageSummary extends Fragment {
         mListView = (ListView) view.findViewById(android.R.id.list);
 
         // adjust padding around tabwidget as needed
-        prepareCustomPreferencesList(container, view, mListView);
+        prepareCustomPreferencesList(container, view, mListView, true);
+
+        // inset selector and divider drawables
+        final int insetSide = view.getResources().getDimensionPixelOffset(
+                com.android.internal.R.dimen.preference_fragment_padding_side);
+        insetListViewDrawables(mListView, insetSide);
 
         mTabHost.setup();
         mTabHost.setOnTabChangedListener(mTabListener);
@@ -1391,7 +1400,7 @@ public class DataUsageSummary extends Fragment {
         public View getView(int position, View convertView, ViewGroup parent) {
             if (convertView == null) {
                 convertView = LayoutInflater.from(parent.getContext()).inflate(
-                        R.layout.app_percentage_item, parent, false);
+                        R.layout.data_usage_item, parent, false);
             }
 
             final Context context = parent.getContext();
@@ -1913,6 +1922,24 @@ public class DataUsageSummary extends Fragment {
     }
 
     /**
+     * Inset both selector and divider {@link Drawable} on the given
+     * {@link ListView} by the requested dimensions.
+     */
+    private static void insetListViewDrawables(ListView view, int insetSide) {
+        final Drawable selector = view.getSelector();
+        final Drawable divider = view.getDivider();
+
+        // fully unregister these drawables so callbacks can be maintained after
+        // wrapping below.
+        final Drawable stub = new ColorDrawable(Color.TRANSPARENT);
+        view.setSelector(stub);
+        view.setDivider(stub);
+
+        view.setSelector(new InsetBoundsDrawable(selector, insetSide));
+        view.setDivider(new InsetBoundsDrawable(divider, insetSide));
+    }
+
+    /**
      * Set {@link android.R.id#title} for a preference view inflated with
      * {@link #inflatePreference(LayoutInflater, ViewGroup, View)}.
      */
diff --git a/src/com/android/settings/Utils.java b/src/com/android/settings/Utils.java
index 2d2b654..20a34a3 100644
--- a/src/com/android/settings/Utils.java
+++ b/src/com/android/settings/Utils.java
@@ -377,7 +377,8 @@ public class Utils {
      * when outside scrollbars are requested. Usually used to display
      * {@link ListView} and {@link TabWidget} with correct padding.
      */
-    public static void prepareCustomPreferencesList(ViewGroup parent, View child, ListView list) {
+    public static void prepareCustomPreferencesList(
+            ViewGroup parent, View child, ListView list, boolean ignoreSidePadding) {
         final boolean movePadding = list.getScrollBarStyle() == View.SCROLLBARS_OUTSIDE_OVERLAY;
         if (movePadding && parent instanceof PreferenceFrameLayout) {
             ((PreferenceFrameLayout.LayoutParams) child.getLayoutParams()).removeBorders = true;
@@ -387,7 +388,9 @@ public class Utils {
                     com.android.internal.R.dimen.preference_fragment_padding_side);
             final int paddingBottom = res.getDimensionPixelSize(
                     com.android.internal.R.dimen.preference_fragment_padding_bottom);
-            list.setPadding(paddingSide, 0, paddingSide, paddingBottom);
+
+            final int effectivePaddingSide = ignoreSidePadding ? 0 : paddingBottom;
+            list.setPadding(effectivePaddingSide, 0, effectivePaddingSide, paddingBottom);
         }
     }
 }
diff --git a/src/com/android/settings/applications/ManageApplications.java b/src/com/android/settings/applications/ManageApplications.java
index d4abfa8..4157e8a 100644
--- a/src/com/android/settings/applications/ManageApplications.java
+++ b/src/com/android/settings/applications/ManageApplications.java
@@ -646,7 +646,7 @@ public class ManageApplications extends Fragment implements
         tabHost.setOnTabChangedListener(this);
 
         // adjust padding around tabwidget as needed
-        prepareCustomPreferencesList(container, mTabHost, mListView);
+        prepareCustomPreferencesList(container, mTabHost, mListView, false);
 
         return mTabHost;
     }
diff --git a/src/com/android/settings/drawable/DrawableWrapper.java b/src/com/android/settings/drawable/DrawableWrapper.java
new file mode 100644
index 0000000..0ac4f7c
--- /dev/null
+++ b/src/com/android/settings/drawable/DrawableWrapper.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.drawable;
+
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Rect;
+import android.graphics.Region;
+import android.graphics.drawable.Drawable;
+import android.view.View;
+
+import com.android.internal.util.Preconditions;
+
+/**
+ * Base wrapper that delegates all calls to another {@link Drawable}. The
+ * wrapped {@link Drawable} <em>must</em> be fully released from any
+ * {@link View} before wrapping, otherwise internal {@link Drawable.Callback}
+ * may be dropped.
+ */
+public class DrawableWrapper extends Drawable implements Drawable.Callback {
+    private final Drawable mDrawable;
+
+    public DrawableWrapper(Drawable drawable) {
+        mDrawable = Preconditions.checkNotNull(drawable);
+        mDrawable.setCallback(this);
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        mDrawable.draw(canvas);
+    }
+
+    @Override
+    public void setBounds(int left, int top, int right, int bottom) {
+        super.setBounds(left, top, right, bottom);
+        mDrawable.setBounds(left, top, right, bottom);
+    }
+
+    @Override
+    public void setChangingConfigurations(int configs) {
+        mDrawable.setChangingConfigurations(configs);
+    }
+
+    @Override
+    public int getChangingConfigurations() {
+        return mDrawable.getChangingConfigurations();
+    }
+
+    @Override
+    public void setDither(boolean dither) {
+        mDrawable.setDither(dither);
+    }
+
+    @Override
+    public void setFilterBitmap(boolean filter) {
+        mDrawable.setFilterBitmap(filter);
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+        mDrawable.setAlpha(alpha);
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter cf) {
+        mDrawable.setColorFilter(cf);
+    }
+
+    @Override
+    public boolean isStateful() {
+        return mDrawable.isStateful();
+    }
+
+    @Override
+    public boolean setState(final int[] stateSet) {
+        return mDrawable.setState(stateSet);
+    }
+
+    @Override
+    public int[] getState() {
+        return mDrawable.getState();
+    }
+
+    @Override
+    public void jumpToCurrentState() {
+        mDrawable.jumpToCurrentState();
+    }
+
+    @Override
+    public Drawable getCurrent() {
+        return mDrawable.getCurrent();
+    }
+
+    @Override
+    public boolean setVisible(boolean visible, boolean restart) {
+        return super.setVisible(visible, restart) || mDrawable.setVisible(visible, restart);
+    }
+
+    @Override
+    public int getOpacity() {
+        return mDrawable.getOpacity();
+    }
+
+    @Override
+    public Region getTransparentRegion() {
+        return mDrawable.getTransparentRegion();
+    }
+
+    @Override
+    public int getIntrinsicWidth() {
+        return mDrawable.getIntrinsicWidth();
+    }
+
+    @Override
+    public int getIntrinsicHeight() {
+        return mDrawable.getIntrinsicHeight();
+    }
+
+    @Override
+    public int getMinimumWidth() {
+        return mDrawable.getMinimumWidth();
+    }
+
+    @Override
+    public int getMinimumHeight() {
+        return mDrawable.getMinimumHeight();
+    }
+
+    @Override
+    public boolean getPadding(Rect padding) {
+        return mDrawable.getPadding(padding);
+    }
+
+    /** {@inheritDoc} */
+    public void invalidateDrawable(Drawable who) {
+        invalidateSelf();
+    }
+
+    /** {@inheritDoc} */
+    public void scheduleDrawable(Drawable who, Runnable what, long when) {
+        scheduleSelf(what, when);
+    }
+
+    /** {@inheritDoc} */
+    public void unscheduleDrawable(Drawable who, Runnable what) {
+        unscheduleSelf(what);
+    }
+}
diff --git a/src/com/android/settings/drawable/InsetBoundsDrawable.java b/src/com/android/settings/drawable/InsetBoundsDrawable.java
new file mode 100644
index 0000000..50ef9f3
--- /dev/null
+++ b/src/com/android/settings/drawable/InsetBoundsDrawable.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.drawable;
+
+import android.graphics.drawable.Drawable;
+
+/**
+ * Wrapper around another {@link Drawable} that insets requested bounds by a
+ * specific amount.
+ */
+public class InsetBoundsDrawable extends DrawableWrapper {
+    private final int mInsetBoundsSides;
+
+    public InsetBoundsDrawable(Drawable drawable, int insetBoundsSides) {
+        super(drawable);
+        mInsetBoundsSides = insetBoundsSides;
+    }
+
+    @Override
+    public void setBounds(int left, int top, int right, int bottom) {
+        super.setBounds(left + mInsetBoundsSides, top, right - mInsetBoundsSides, bottom);
+    }
+}
diff --git a/src/com/android/settings/widget/ChartDataUsageView.java b/src/com/android/settings/widget/ChartDataUsageView.java
index cad2ed8..cb9c8d7 100644
--- a/src/com/android/settings/widget/ChartDataUsageView.java
+++ b/src/com/android/settings/widget/ChartDataUsageView.java
@@ -496,32 +496,32 @@ public class ChartDataUsageView extends ChartView {
         public long buildLabel(Resources res, SpannableStringBuilder builder, long value) {
 
             final CharSequence unit;
-            float result = value;
-            long labelValue = 1;
-            if (result <= 100 * MB_IN_BYTES) {
+            final long unitFactor;
+            if (value <= 100 * MB_IN_BYTES) {
                 unit = res.getText(com.android.internal.R.string.megabyteShort);
-                result /= MB_IN_BYTES;
-                labelValue = MB_IN_BYTES;
+                unitFactor = MB_IN_BYTES;
             } else {
                 unit = res.getText(com.android.internal.R.string.gigabyteShort);
-                result /= GB_IN_BYTES;
-                labelValue = GB_IN_BYTES;
+                unitFactor = GB_IN_BYTES;
             }
 
+            final double result = (double) value / unitFactor;
+            final double resultRounded;
             final CharSequence size;
             if (result < 10) {
                 size = String.format("%.1f", result);
+                resultRounded = (unitFactor * Math.round(result * 10)) / 10;
             } else {
                 size = String.format("%.0f", result);
+                resultRounded = unitFactor * Math.round(result);
             }
-            labelValue *= Float.parseFloat(size.toString());
 
             final int[] sizeBounds = findOrCreateSpan(builder, sSpanSize, "^1");
             builder.replace(sizeBounds[0], sizeBounds[1], size);
             final int[] unitBounds = findOrCreateSpan(builder, sSpanUnit, "^2");
             builder.replace(unitBounds[0], unitBounds[1], unit);
 
-            return labelValue;
+            return (long) resultRounded;
         }
 
         /** {@inheritDoc} */
diff --git a/src/com/android/settings/widget/ChartSweepView.java b/src/com/android/settings/widget/ChartSweepView.java
index 33e90c8..7b6d887 100644
--- a/src/com/android/settings/widget/ChartSweepView.java
+++ b/src/com/android/settings/widget/ChartSweepView.java
@@ -45,11 +45,13 @@ public class ChartSweepView extends View {
 
     private static final boolean DRAW_OUTLINE = false;
 
+    // TODO: clean up all the various padding/offset/margins
+
     private Drawable mSweep;
     private Rect mSweepPadding = new Rect();
 
     /** Offset of content inside this view. */
-    private Point mContentOffset = new Point();
+    private Rect mContentOffset = new Rect();
     /** Offset of {@link #mSweep} inside this view. */
     private Point mSweepOffset = new Point();
 
@@ -229,6 +231,8 @@ public class ChartSweepView extends View {
         if (mLabelTemplate != null && mAxis != null) {
             mLabelValue = mAxis.buildLabel(getResources(), mLabelTemplate, mValue);
             invalidate();
+        } else {
+            mLabelValue = mValue;
         }
     }
 
@@ -333,9 +337,9 @@ public class ChartSweepView extends View {
                 // only start tracking when in sweet spot
                 final boolean accept;
                 if (mFollowAxis == VERTICAL) {
-                    accept = event.getX() > getWidth() - (mSweepPadding.right * 3);
+                    accept = event.getX() > getWidth() - (mSweepPadding.right * 8);
                 } else {
-                    accept = event.getY() > getHeight() - (mSweepPadding.bottom * 3);
+                    accept = event.getY() > getHeight() - (mSweepPadding.bottom * 8);
                 }
 
                 final MotionEvent eventInParent = event.copy();
@@ -392,6 +396,7 @@ public class ChartSweepView extends View {
             }
             case MotionEvent.ACTION_UP: {
                 mTracking = null;
+                mValue = mLabelValue;
                 dispatchOnSweep(true);
                 setTranslationX(0);
                 setTranslationY(0);
@@ -534,23 +539,30 @@ public class ChartSweepView extends View {
             mMargins.bottom = mSweepPadding.bottom;
         }
 
-        mContentOffset.x = 0;
-        mContentOffset.y = 0;
+        mContentOffset.set(0, 0, 0, 0);
 
         // make touch target area larger
+        final int widthBefore = getMeasuredWidth();
+        final int heightBefore = getMeasuredHeight();
         if (mFollowAxis == HORIZONTAL) {
-            final int widthBefore = getMeasuredWidth();
             final int widthAfter = widthBefore * 3;
-            setMeasuredDimension(widthAfter, getMeasuredHeight());
-            mContentOffset.offset((widthAfter - widthBefore) / 2, 0);
+            setMeasuredDimension(widthAfter, heightBefore);
+            mContentOffset.left = (widthAfter - widthBefore) / 2;
+
+            final int offset = mSweepPadding.bottom * 2;
+            mContentOffset.bottom -= offset;
+            mMargins.bottom += offset;
         } else {
-            final int heightBefore = getMeasuredHeight();
             final int heightAfter = heightBefore * 3;
-            setMeasuredDimension(getMeasuredWidth(), heightAfter);
+            setMeasuredDimension(widthBefore, heightAfter);
             mContentOffset.offset(0, (heightAfter - heightBefore) / 2);
+
+            final int offset = mSweepPadding.right * 2;
+            mContentOffset.right -= offset;
+            mMargins.right += offset;
         }
 
-        mSweepOffset.offset(mContentOffset.x, mContentOffset.y);
+        mSweepOffset.offset(mContentOffset.left, mContentOffset.top);
         mMargins.offset(-mSweepOffset.x, -mSweepOffset.y);
     }
 
@@ -592,7 +604,7 @@ public class ChartSweepView extends View {
         if (isEnabled() && mLabelLayout != null) {
             final int count = canvas.save();
             {
-                canvas.translate(mContentOffset.x, mContentOffset.y + labelOffset);
+                canvas.translate(mContentOffset.left, mContentOffset.top + labelOffset);
                 mLabelLayout.draw(canvas);
             }
             canvas.restoreToCount(count);
@@ -602,18 +614,18 @@ public class ChartSweepView extends View {
         }
 
         if (mFollowAxis == VERTICAL) {
-            mSweep.setBounds(labelSize, mSweepOffset.y, width,
+            mSweep.setBounds(labelSize, mSweepOffset.y, width + mContentOffset.right,
                     mSweepOffset.y + mSweep.getIntrinsicHeight());
         } else {
-            mSweep.setBounds(mSweepOffset.x, labelSize,
-                    mSweepOffset.x + mSweep.getIntrinsicWidth(), height);
+            mSweep.setBounds(mSweepOffset.x, labelSize, mSweepOffset.x + mSweep.getIntrinsicWidth(),
+                    height + mContentOffset.bottom);
         }
 
         mSweep.draw(canvas);
     }
 
     public static float getLabelTop(ChartSweepView view) {
-        return view.getY() + view.mContentOffset.y;
+        return view.getY() + view.mContentOffset.top;
     }
 
     public static float getLabelBottom(ChartSweepView view) {