Merge "Add private constructors to static utility classes." into pi-p…

…review1-androidx-dev

am: 82dc1e2

Change-Id: I330a32cebdb47c0419043484165682facb869467

collection/src/main/java/androidx/collection/ContainerHelpers.java

@@ -79,4 +79,7 @@ static int binarySearch(long[] array, int size, long value) {
         }
         return ~lo;  // value not present
     }
+
+    private ContainerHelpers() {
+    }
 }

compat/src/main/java/androidx/core/app/BundleCompat.java

@@ -41,6 +41,9 @@ static class BundleCompatBaseImpl {
         private static Method sPutIBinderMethod;
         private static boolean sPutIBinderMethodFetched;
 
+        private BundleCompatBaseImpl() {
+        }
+
         public static IBinder getBinder(Bundle bundle, String key) {
             if (!sGetIBinderMethodFetched) {
                 try {

compat/src/main/java/androidx/core/app/NotificationCompatJellybean.java

@@ -338,4 +338,7 @@ private static Bundle[] getBundleArrayFromBundle(Bundle bundle, String key) {
         bundle.putParcelableArray(key, typedArray);
         return typedArray;
     }
+
+    private NotificationCompatJellybean() {
+    }
 }

compat/src/main/java/androidx/core/content/res/FontResourcesParserCompat.java

@@ -308,4 +308,7 @@ private static void skip(XmlPullParser parser) throws XmlPullParserException, IO
             }
         }
     }
+
+    private FontResourcesParserCompat() {
+    }
 }

compat/src/main/java/androidx/core/content/res/TypedArrayUtils.java

@@ -294,4 +294,7 @@ public static int getAttr(@NonNull Context context, int attr, int fallbackAttr)
         }
         return fallbackAttr;
     }
+
+    private TypedArrayUtils() {
+    }
 }

compat/src/main/java/androidx/core/graphics/PathParser.java

@@ -758,4 +758,7 @@ private static void arcToBezier(Path p,
             }
         }
     }
+
+    private PathParser() {
+    }
 }

compat/src/main/java/androidx/core/os/LocaleHelper.java

@@ -69,4 +69,7 @@ static String toLanguageTag(Locale locale) {
 
         return buf.toString();
     }
+
+    private LocaleHelper() {
+    }
 }

compat/src/main/java/androidx/core/text/util/FindAddress.java

@@ -513,4 +513,7 @@ public static String findAddress(String content) {
         }
         return null;
     }
+
+    private FindAddress() {
+    }
 }

compat/src/main/java/androidx/core/util/DebugUtils.java

@@ -45,4 +45,7 @@ public static void buildShortClassTag(Object cls, StringBuilder out) {
             out.append(Integer.toHexString(System.identityHashCode(cls)));
         }
     }
+
+    private DebugUtils() {
+    }
 }

compat/src/main/java/androidx/core/util/Preconditions.java

@@ -462,4 +462,7 @@ public static float[] checkArrayElementsInRange(float[] value, float lower, floa
 
         return value;
     }
+
+    private Preconditions() {
+    }
 }

coordinatorlayout/src/main/java/androidx/coordinatorlayout/widget/ViewGroupUtils.java

@@ -92,4 +92,7 @@ private static void offsetDescendantMatrix(ViewParent target, View view, Matrix
             m.preConcat(view.getMatrix());
         }
     }
+
+    private ViewGroupUtils() {
+    }
 }

customview/src/main/java/androidx/customview/widget/FocusStrategy.java

@@ -450,4 +450,7 @@ public interface CollectionAdapter<T, V> {
         V get(T collection, int index);
         int size(T collection);
     }
+
+    private FocusStrategy() {
+    }
 }

documentfile/src/main/java/androidx/documentfile/provider/DocumentsContractApi19.java

@@ -209,4 +209,7 @@ private static void closeQuietly(@Nullable AutoCloseable closeable) {
             }
         }
     }
+
+    private DocumentsContractApi19() {
+    }
 }

emoji/core/src/main/java/androidx/emoji/text/MetadataListReader.java

@@ -341,4 +341,7 @@ public long getPosition() {
             return mByteBuffer.position();
         }
     }
+
+    private MetadataListReader() {
+    }
 }

fragment/src/main/java/androidx/fragment/app/FragmentManager.java

@@ -3812,6 +3812,9 @@ static class FragmentTag {
         public static final int Fragment_id = 1;
         public static final int Fragment_name = 0;
         public static final int Fragment_tag = 2;
+
+        private FragmentTag() {
+        }
     }
 
     /**

fragment/src/main/java/androidx/fragment/app/FragmentTransition.java

@@ -1254,4 +1254,7 @@ static class FragmentContainerTransition {
          */
         public BackStackRecord firstOutTransaction;
     }
+
+    private FragmentTransition() {
+    }
 }

graphics/drawable/animated/src/main/java/androidx/vectordrawable/graphics/drawable/AnimationUtilsCompat.java

@@ -145,4 +145,7 @@ private static Interpolator createInterpolatorFromXml(Context context, Resources
         }
         return interpolator;
     }
+
+    private AnimationUtilsCompat() {
+    }
 }

graphics/drawable/animated/src/main/java/androidx/vectordrawable/graphics/drawable/AnimatorInflaterCompat.java

@@ -917,5 +917,8 @@ private static boolean isColorType(int type) {
         return (type >= TypedValue.TYPE_FIRST_COLOR_INT) && (type
                 <= TypedValue.TYPE_LAST_COLOR_INT);
     }
+
+    private AnimatorInflaterCompat() {
+    }
 }
 

graphics/drawable/static/src/main/java/androidx/vectordrawable/graphics/drawable/AndroidResources.java

@@ -146,4 +146,7 @@ class AndroidResources {
     public static final int FAST_OUT_LINEAR_IN = 0x010c000f;
     public static final int FAST_OUT_SLOW_IN = 0x010c000d;
     public static final int LINEAR_OUT_SLOW_IN = 0x010c000e;
+
+    private AndroidResources() {
+    }
 }

leanback-preference/api21/androidx/leanback/preference/LeanbackPreferenceFragmentTransitionHelperApi21.java

@@ -44,4 +44,6 @@ public static void addTransitions(Fragment f) {
     }
 
 
+    private LeanbackPreferenceFragmentTransitionHelperApi21() {
+    }
 }

leanback/api21/androidx/leanback/transition/TranslationAnimationCreator.java

@@ -154,4 +154,6 @@ public void onTransitionResume(Transition transition) {
         }
     }
 
+    private TranslationAnimationCreator() {
+    }
 }

leanback/src/main/java/androidx/leanback/app/FragmentUtil.java

@@ -26,4 +26,7 @@ static Context getContext(Fragment fragment) {
         }
         return fragment.getActivity();
     }
+
+    private FragmentUtil() {
+    }
 }

leanback/src/main/java/androidx/leanback/app/PermissionHelper.java

@@ -32,4 +32,6 @@ public static void requestPermissions(android.app.Fragment fragment, String[] pe
         }
     }
 
+    private PermissionHelper() {
+    }
 }

leanback/src/main/java/androidx/leanback/transition/LeanbackTransitionHelper.java

@@ -55,4 +55,7 @@ public static Object loadTitleOutTransition(Context context) {
         slide.addTarget(R.id.browse_title_group);
         return slide;
     }
+
+    private LeanbackTransitionHelper() {
+    }
 }

leanback/src/main/java/androidx/leanback/transition/TransitionHelper.java

@@ -464,4 +464,7 @@ public Rect onGetEpicenter(Transition transition11) {
             }
         }
     }
+
+    private TransitionHelper() {
+    }
 }

leanback/src/main/java/androidx/leanback/widget/BackgroundHelper.java

@@ -40,4 +40,7 @@ public static void setBackgroundPreservingAlpha(View view, Drawable drawable) {
             view.setBackground(drawable);
         }
     }
+
+    private BackgroundHelper() {
+    }
 }

leanback/src/main/java/androidx/leanback/widget/ForegroundHelper.java

@@ -25,4 +25,7 @@ static void setForeground(View view, Drawable drawable) {
             view.setForeground(drawable);
         }
     }
+
+    private ForegroundHelper() {
+    }
 }

leanback/src/main/java/androidx/leanback/widget/ItemAlignmentFacetHelper.java

@@ -105,4 +105,6 @@ static int getAlignmentPosition(View itemView, ItemAlignmentFacet.ItemAlignmentD
         return alignPos;
     }
 
+    private ItemAlignmentFacetHelper() {
+    }
 }

leanback/src/main/java/androidx/leanback/widget/RoundedRectHelperApi21.java

@@ -59,4 +59,7 @@ public static void setClipToRoundedOutline(View view, boolean clip, int roundedC
         }
         view.setClipToOutline(clip);
     }
+
+    private RoundedRectHelperApi21() {
+    }
 }

leanback/src/main/java/androidx/leanback/widget/ShadowHelperApi21.java

@@ -58,4 +58,7 @@ public static void setShadowFocusLevel(Object object, float level) {
         ShadowImpl impl = (ShadowImpl) object;
         impl.mShadowContainer.setZ(impl.mNormalZ + level * (impl.mFocusedZ - impl.mNormalZ));
     }
+
+    private ShadowHelperApi21() {
+    }
 }

leanback/src/main/java/androidx/leanback/widget/Util.java

@@ -43,4 +43,7 @@ public static boolean isDescendant(ViewGroup parent, View child) {
         }
         return false;
     }
-}
+
+    private Util() {
+    }
+}

leanback/src/main/java/androidx/leanback/widget/picker/PickerUtility.java

@@ -95,4 +95,7 @@ public static Calendar getCalendarForLocale(Calendar oldCalendar, Locale locale)
             return newCalendar;
         }
     }
+
+    private PickerUtility() {
+    }
 }

media/api21/android/support/v4/media/MediaBrowserCompatApi21.java

@@ -148,5 +148,11 @@ public static int getFlags(Object itemObj) {
         public static Object getDescription(Object itemObj) {
             return ((MediaBrowser.MediaItem) itemObj).getDescription();
         }
+
+        private MediaItem() {
+        }
+    }
+
+    private MediaBrowserCompatApi21() {
     }
 }

media/api21/android/support/v4/media/MediaDescriptionCompatApi21.java

@@ -99,5 +99,11 @@ public static void setExtras(Object builderObj, Bundle extras) {
         public static Object build(Object builderObj) {
             return ((MediaDescription.Builder) builderObj).build();
         }
+
+        private Builder() {
+        }
+    }
+
+    private MediaDescriptionCompatApi21() {
     }
 }

media/api21/android/support/v4/media/MediaMetadataCompatApi21.java

@@ -83,5 +83,11 @@ public static void putString(Object builderObj, String key, String value) {
         public static Object build(Object builderObj) {
             return ((MediaMetadata.Builder)builderObj).build();
         }
+
+        private Builder() {
+        }
+    }
+
+    private MediaMetadataCompatApi21() {
     }
 }

media/api21/android/support/v4/media/ParceledListSliceAdapterApi21.java

@@ -48,4 +48,7 @@ static Object newInstance(List<MediaBrowser.MediaItem> itemList) {
         }
         return result;
     }
+
+    private ParceledListSliceAdapterApi21() {
+    }
 }

media/api21/android/support/v4/media/session/MediaControllerCompatApi21.java

@@ -186,6 +186,9 @@ public static void skipToQueueItem(Object controlsObj, long id) {
         public static void sendCustomAction(Object controlsObj, String action, Bundle args) {
             ((MediaController.TransportControls) controlsObj).sendCustomAction(action, args);
         }
+
+        private TransportControls() {
+        }
     }
 
     public static class PlaybackInfo {
@@ -258,6 +261,9 @@ private static int toLegacyStreamType(AudioAttributes aa) {
                     return AudioManager.STREAM_MUSIC;
             }
         }
+
+        private PlaybackInfo() {
+        }
     }
 
     public static interface Callback {
@@ -320,4 +326,7 @@ public void onAudioInfoChanged(MediaController.PlaybackInfo info){
                     info.getMaxVolume(), info.getCurrentVolume());
         }
     }
+
+    private MediaControllerCompatApi21() {
+    }
 }

media/api21/android/support/v4/media/session/MediaSessionCompatApi21.java

@@ -269,5 +269,11 @@ public static Object getDescription(Object queueItem) {
         public static long getQueueId(Object queueItem) {
             return ((MediaSession.QueueItem) queueItem).getQueueId();
         }
+
+        private QueueItem() {
+        }
+    }
+
+    private MediaSessionCompatApi21() {
     }
 }

media/api21/android/support/v4/media/session/PlaybackStateCompatApi21.java

@@ -100,5 +100,11 @@ public static Object newInstance(String action, CharSequence name,
             customActionObj.setExtras(extras);
             return customActionObj.build();
         }
+
+        private CustomAction() {
+        }
+    }
+
+    private PlaybackStateCompatApi21() {
     }
 }

media/api21/androidx/media/AudioAttributesCompatApi21.java

@@ -65,4 +65,7 @@ public AudioAttributes unwrap() {
             return mWrapped;
         }
     }
+
+    private AudioAttributesCompatApi21() {
+    }
 }

media/api21/androidx/media/MediaBrowserServiceCompatApi21.java

@@ -129,4 +129,7 @@ public void onLoadChildren(String parentId, Result<List<MediaBrowser.MediaItem>>
             mServiceProxy.onLoadChildren(parentId, new ResultWrapper<List<Parcel>>(result));
         }
     }
+
+    private MediaBrowserServiceCompatApi21() {
+    }
 }

media/api21/androidx/media/VolumeProviderCompatApi21.java

@@ -45,4 +45,7 @@ public interface Delegate {
         void onSetVolumeTo(int volume);
         void onAdjustVolume(int delta);
     }
+
+    private VolumeProviderCompatApi21() {
+    }
 }

media/api22/android/support/v4/media/session/MediaSessionCompatApi22.java

@@ -25,4 +25,7 @@ class MediaSessionCompatApi22 {
     public static void setRatingType(Object sessionObj, int type) {
         ((MediaSession) sessionObj).setRatingType(type);
     }
+
+    private MediaSessionCompatApi22() {
+    }
 }

media/api22/android/support/v4/media/session/PlaybackStateCompatApi22.java

@@ -45,4 +45,7 @@ public static Object newInstance(int state, long position, long bufferedPosition
         stateObj.setExtras(extras);
         return stateObj.build();
     }
+
+    private PlaybackStateCompatApi22() {
+    }
 }