Merge "Reducing bitmap sizes in notifications" into oc-dr1-dev

am: 8ffa981686

Change-Id: I20fbb857570c0e7bb02659b9026b0800d5939bc2

core/java/android/app/Notification.java

@@ -33,6 +33,7 @@ import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ShortcutInfo;
 import android.content.res.ColorStateList;
+import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;
@@ -1089,6 +1090,11 @@ public class Notification implements Parcelable
      */
     public static final String EXTRA_CONTAINS_CUSTOM_VIEW = "android.contains.customView";
 
+    /**
+     * @hide
+     */
+    public static final String EXTRA_REDUCED_IMAGES = "android.reduced.images";
+
     /**
      * {@link #extras} key: the audio contents of this notification.
      *
@@ -4943,9 +4949,13 @@ public class Notification implements Parcelable
             buildUnstyled();
 
             if (mStyle != null) {
+                mStyle.reduceImageSizes(mContext);
+                mStyle.purgeResources();
                 mStyle.buildStyled(mN);
             }
 
+            mN.reduceImageSizes(mContext);
+
             if (mContext.getApplicationInfo().targetSdkVersion < Build.VERSION_CODES.N
                     && (useExistingRemoteView())) {
                 if (mN.contentView == null) {
@@ -5134,6 +5144,52 @@ public class Notification implements Parcelable
         }
     }
 
+    /**
+     * Reduces the image sizes to conform to a maximum allowed size. This also processes all custom
+     * remote views.
+     *
+     * @hide
+     */
+    void reduceImageSizes(Context context) {
+        if (extras.getBoolean(EXTRA_REDUCED_IMAGES)) {
+            return;
+        }
+        if (mLargeIcon != null || largeIcon != null) {
+            Resources resources = context.getResources();
+            Class<? extends Style> style = getNotificationStyle();
+            int maxWidth = resources.getDimensionPixelSize(R.dimen.notification_right_icon_size);
+            int maxHeight = maxWidth;
+            if (MediaStyle.class.equals(style)
+                    || DecoratedMediaCustomViewStyle.class.equals(style)) {
+                maxHeight = resources.getDimensionPixelSize(
+                        R.dimen.notification_media_image_max_height);
+                maxWidth = resources.getDimensionPixelSize(
+                        R.dimen.notification_media_image_max_width);
+            }
+            if (mLargeIcon != null) {
+                mLargeIcon.scaleDownIfNecessary(maxWidth, maxHeight);
+            }
+            if (largeIcon != null) {
+                largeIcon = Icon.scaleDownIfNecessary(largeIcon, maxWidth, maxHeight);
+            }
+        }
+        reduceImageSizesForRemoteView(contentView, context);
+        reduceImageSizesForRemoteView(headsUpContentView, context);
+        reduceImageSizesForRemoteView(bigContentView, context);
+        extras.putBoolean(EXTRA_REDUCED_IMAGES, true);
+    }
+
+    private void reduceImageSizesForRemoteView(RemoteViews remoteView, Context context) {
+        if (remoteView != null) {
+            Resources resources = context.getResources();
+            int maxWidth = resources.getDimensionPixelSize(
+                    R.dimen.notification_custom_view_max_image_width);
+            int maxHeight = resources.getDimensionPixelSize(
+                    R.dimen.notification_custom_view_max_image_height);
+            remoteView.reduceImageSizes(maxWidth, maxHeight);
+        }
+    }
+
     /**
      * @return whether this notification is a foreground service notification
      */
@@ -5435,6 +5491,14 @@ public class Notification implements Parcelable
         public boolean displayCustomViewInline() {
             return false;
         }
+
+        /**
+         * Reduces the image sizes contained in this style.
+         *
+         * @hide
+         */
+        public void reduceImageSizes(Context context) {
+        }
     }
 
     /**
@@ -5530,6 +5594,27 @@ public class Notification implements Parcelable
             }
         }
 
+        /**
+         * @hide
+         */
+        @Override
+        public void reduceImageSizes(Context context) {
+            super.reduceImageSizes(context);
+            Resources resources = context.getResources();
+            if (mPicture != null) {
+                int maxPictureWidth = resources.getDimensionPixelSize(
+                        R.dimen.notification_big_picture_max_height);
+                int maxPictureHeight = resources.getDimensionPixelSize(
+                        R.dimen.notification_big_picture_max_width);
+                mPicture = Icon.scaleDownIfNecessary(mPicture, maxPictureWidth, maxPictureHeight);
+            }
+            if (mBigLargeIcon != null) {
+                int rightIconSize = resources.getDimensionPixelSize(
+                        R.dimen.notification_right_icon_size);
+                mBigLargeIcon.scaleDownIfNecessary(rightIconSize, rightIconSize);
+            }
+        }
+
         /**
          * @hide
          */

core/java/android/app/NotificationManager.java

@@ -312,6 +312,7 @@ public class NotificationManager {
             }
         }
         if (localLOGV) Log.v(TAG, pkg + ": notify(" + id + ", " + notification + ")");
+        notification.reduceImageSizes(mContext);
         final Notification copy = Builder.maybeCloneStrippedForDelivery(notification);
         try {
             service.enqueueNotificationWithTag(pkg, mContext.getOpPackageName(), tag, id,

core/java/android/widget/RemoteViews.java

@@ -198,6 +198,22 @@ public class RemoteViews implements Parcelable, Filter {
         mActions.add(new SetRemoteInputsAction(viewId, remoteInputs));
     }
 
+    /**
+     * Reduces all images and ensures that they are all below the given sizes.
+     *
+     * @param maxWidth the maximum width allowed
+     * @param maxHeight the maximum height allowed
+     *
+     * @hide
+     */
+    public void reduceImageSizes(int maxWidth, int maxHeight) {
+        ArrayList<Bitmap> cache = mBitmapCache.mBitmaps;
+        for (int i = 0; i < cache.size(); i++) {
+            Bitmap bitmap = cache.get(i);
+            cache.set(i, Icon.scaleDownIfNecessary(bitmap, maxWidth, maxHeight));
+        }
+    }
+
     /**
      * Handle with care!
      */

core/res/res/layout/notification_template_right_icon.xml

@@ -21,8 +21,8 @@
              android:layout_height="wrap_content"
              android:layout_gravity="top|end">
     <ImageView android:id="@+id/right_icon"
-               android:layout_width="40dp"
+               android:layout_width="@dimen/notification_right_icon_size"
-               android:layout_height="40dp"
+               android:layout_height="@dimen/notification_right_icon_size"
                android:layout_gravity="top|end"
                android:layout_marginTop="36dp"
                android:layout_marginEnd="@dimen/notification_content_margin_end"

core/res/res/values/dimens.xml

@@ -580,6 +580,21 @@
     <dimen name="item_touch_helper_swipe_escape_velocity">120dp</dimen>
     <dimen name="item_touch_helper_swipe_escape_max_velocity">800dp</dimen>
 
+    <!-- The maximum height of any image in a remote view. This is applied to all images in custom remoteviews. This value is determined by the maximum notification height -->
+    <dimen name="notification_custom_view_max_image_height">284dp</dimen>
+    <!-- The maximum height of any image in a remote view. This is applied to all images in custom remoteviews. This value is determined a maximum notification width -->
+    <dimen name="notification_custom_view_max_image_width">450dp</dimen>
+    <!-- The maximum height of a big picture in a notification. The images will be reduced to that height in case they are bigger. This value is determined by the maximum notification height -->
+    <dimen name="notification_big_picture_max_height">284dp</dimen>
+    <!-- The maximum width of a big picture in a notification. The images will be reduced to that width in case they are bigger. This value is determined by the standard panel size -->
+    <dimen name="notification_big_picture_max_width">416dp</dimen>
+    <!-- The maximum height of a image in a media notification. The images will be reduced to that height in case they are bigger. This value is determined by the expanded media template-->
+    <dimen name="notification_media_image_max_height">140dp</dimen>
+    <!-- The maximum width of a image in a media notification. The images will be reduced to that width in case they are bigger.-->
+    <dimen name="notification_media_image_max_width">280dp</dimen>
+    <!-- The size of the right icon -->
+    <dimen name="notification_right_icon_size">40dp</dimen>
+
     <!-- Max width/height of the autofill data set picker as a fraction of the screen width/height -->
     <dimen name="autofill_dataset_picker_max_size">90%</dimen>
 

core/res/res/values/symbols.xml

@@ -2944,6 +2944,14 @@
   <java-symbol type="style" name="AutofillDatasetPicker" />
   <java-symbol type="dimen" name="autofill_dataset_picker_max_size"/>
 
+  <java-symbol type="dimen" name="notification_big_picture_max_height"/>
+  <java-symbol type="dimen" name="notification_big_picture_max_width"/>
+  <java-symbol type="dimen" name="notification_media_image_max_width"/>
+  <java-symbol type="dimen" name="notification_media_image_max_height"/>
+  <java-symbol type="dimen" name="notification_right_icon_size"/>
+  <java-symbol type="dimen" name="notification_custom_view_max_image_height"/>
+  <java-symbol type="dimen" name="notification_custom_view_max_image_width"/>
+
   <!-- Accessibility fingerprint gestures -->
   <java-symbol type="string" name="capability_title_canCaptureFingerprintGestures" />
   <java-symbol type="string" name="capability_desc_canCaptureFingerprintGestures" />

graphics/java/android/graphics/drawable/Icon.java

@@ -804,6 +804,43 @@ public final class Icon implements Parcelable {
         }
     };
 
+    /**
+     * Scale down a bitmap to a given max width and max height. The scaling will be done in a uniform way
+     * @param bitmap the bitmap to scale down
+     * @param maxWidth the maximum width allowed
+     * @param maxHeight the maximum height allowed
+     *
+     * @return the scaled bitmap if necessary or the original bitmap if no scaling was needed
+     * @hide
+     */
+    public static Bitmap scaleDownIfNecessary(Bitmap bitmap, int maxWidth, int maxHeight) {
+        int bitmapWidth = bitmap.getWidth();
+        int bitmapHeight = bitmap.getHeight();
+        if (bitmapWidth > maxWidth || bitmapHeight > maxHeight) {
+            float scale = Math.min((float) maxWidth / bitmapWidth,
+                    (float) maxHeight / bitmapHeight);
+            bitmap = Bitmap.createScaledBitmap(bitmap, (int) (scale * bitmapWidth),
+                    (int) (scale * bitmapHeight), true /* filter */);
+        }
+        return bitmap;
+    }
+
+    /**
+     * Scale down this icon to a given max width and max height.
+     * The scaling will be done in a uniform way and currently only bitmaps are supported.
+     * @param maxWidth the maximum width allowed
+     * @param maxHeight the maximum height allowed
+     *
+     * @hide
+     */
+    public void scaleDownIfNecessary(int maxWidth, int maxHeight) {
+        if (mType != TYPE_BITMAP && mType != TYPE_ADAPTIVE_BITMAP) {
+            return;
+        }
+        Bitmap bitmap = getBitmap();
+        setBitmap(scaleDownIfNecessary(bitmap, maxWidth, maxHeight));
+    }
+
     /**
      * Implement this interface to receive a callback when
      * {@link #loadDrawableAsync(Context, OnDrawableLoadedListener, Handler) loadDrawableAsync}