1 files changed, 82 insertions, 0 deletions
diff --git a/core/java/android/transition/TransitionValues.java b/core/java/android/transition/TransitionValues.java
new file mode 100644
index 000000000000..8989f89295f6
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+++ b/core/java/android/transition/TransitionValues.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2013 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 android.transition;
+
+import android.util.ArrayMap;
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.Map;
+
+/**
+ * Data structure which holds cached values for the transition.
+ * The view field is the target which all of the values pertain to.
+ * The values field is a map which holds information for fields
+ * according to names selected by the transitions. These names should
+ * be unique to avoid clobbering values stored by other transitions,
+ * such as the convention project:transition_name:property_name. For
+ * example, the platform might store a property "alpha" in a transition
+ * "Fader" as "android:fader:alpha".
+ *
+ * <p>These values are cached during the
+ * {@link Transition#captureStartValues(TransitionValues)}
+ * capture} phases of a scene change, once when the start values are captured
+ * and again when the end values are captured. These start/end values are then
+ * passed into the transitions via the
+ * for {@link Transition#createAnimator(ViewGroup, TransitionValues, TransitionValues)}
+ * method.</p>
+ */
+public class TransitionValues {
+
+    /**
+     * The View with these values
+     */
+    public View view;
+
+    /**
+     * The set of values tracked by transitions for this scene
+     */
+    public final Map<String, Object> values = new ArrayMap<String, Object>();
+
+    @Override
+    public boolean equals(Object other) {
+        if (other instanceof TransitionValues) {
+            if (view == ((TransitionValues) other).view) {
+                if (values.equals(((TransitionValues) other).values)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return 31*view.hashCode() + values.hashCode();
+    }
+
+    @Override
+    public String toString() {
+        String returnValue = "TransitionValues@" + Integer.toHexString(hashCode()) + ":\n";
+        returnValue += "    view = " + view + "\n";
+        returnValue += "    values:";
+        for (String s : values.keySet()) {
+            returnValue += "    " + s + ": " + values.get(s) + "\n";
+        }
+        return returnValue;
+    }
+}
+\ No newline at end of file