1 files changed, 84 insertions, 0 deletions
diff --git a/src/com/android/packageinstaller/permission/ui/wear/settings/ExtendedViewHolder.java b/src/com/android/packageinstaller/permission/ui/wear/settings/ExtendedViewHolder.java
new file mode 100644
index 00000000..6b725419
--- /dev/null
+++ b/src/com/android/packageinstaller/permission/ui/wear/settings/ExtendedViewHolder.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2015 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.packageinstaller.permission.ui.wear.settings;
+
+import android.animation.ObjectAnimator;
+import android.support.wearable.view.WearableListView;
+import android.view.View;
+
+
+public class ExtendedViewHolder extends WearableListView.ViewHolder {
+    public static final long DEFAULT_ANIMATION_DURATION = 150;
+
+    private ObjectAnimator mScalingUpAnimator;
+
+    private ObjectAnimator mScalingDownAnimator;
+
+    private float mMinValue;
+
+    private float mMaxValue;
+
+    public ExtendedViewHolder(View itemView) {
+        super(itemView);
+        if (itemView instanceof ExtendedOnCenterProximityListener) {
+            ExtendedOnCenterProximityListener item =
+                    (ExtendedOnCenterProximityListener) itemView;
+            mMinValue = item.getProximityMinValue();
+            item.setScalingAnimatorValue(mMinValue);
+            mMaxValue = item.getProximityMaxValue();
+            mScalingUpAnimator = ObjectAnimator.ofFloat(item, "scalingAnimatorValue", mMinValue,
+                    mMaxValue);
+            mScalingUpAnimator.setDuration(DEFAULT_ANIMATION_DURATION);
+            mScalingDownAnimator = ObjectAnimator.ofFloat(item, "scalingAnimatorValue",
+                    mMaxValue, mMinValue);
+            mScalingDownAnimator.setDuration(DEFAULT_ANIMATION_DURATION);
+        }
+    }
+
+    public void onCenterProximity(boolean isCentralItem, boolean animate) {
+        if (!(itemView instanceof ExtendedOnCenterProximityListener)) {
+            return;
+        }
+        ExtendedOnCenterProximityListener item = (ExtendedOnCenterProximityListener) itemView;
+        if (isCentralItem) {
+            if (animate) {
+                mScalingDownAnimator.cancel();
+                if (!mScalingUpAnimator.isRunning()) {
+                    mScalingUpAnimator.setFloatValues(item.getCurrentProximityValue(),
+                            mMaxValue);
+                    mScalingUpAnimator.start();
+                }
+            } else {
+                mScalingUpAnimator.cancel();
+                item.setScalingAnimatorValue(item.getProximityMaxValue());
+            }
+        } else {
+            mScalingUpAnimator.cancel();
+            if (animate) {
+                if (!mScalingDownAnimator.isRunning()) {
+                    mScalingDownAnimator.setFloatValues(item.getCurrentProximityValue(),
+                            mMinValue);
+                    mScalingDownAnimator.start();
+                }
+            } else {
+                mScalingDownAnimator.cancel();
+                item.setScalingAnimatorValue(item.getProximityMinValue());
+            }
+        }
+        super.onCenterProximity(isCentralItem, animate);
+    }
+}