Add dynamic scene creation/transition capability

Add TransitionManager.beginDelayedTransition() to handle starting a transition
on the next frame for a given scene root based on all changes that
take place between the first call to that method and the next animation frame.

Issue #9321937 Transitions: consider batching up multiple scene actions

Change-Id: I3fc92b6b4ec5ff42b1e678bcfd385703e32eba2a

3 files changed, 88 insertions, 0 deletions

diff --git a/tests/TransitionTests/AndroidManifest.xml b/tests/TransitionTests/AndroidManifest.xml
index be6b145..98174ab 100644
--- a/tests/TransitionTests/AndroidManifest.xml
+++ b/tests/TransitionTests/AndroidManifest.xml
@@ -212,6 +212,13 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:label="DelayedTransition"
+                  android:name="DelayedTransition">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
 
     </application>
 
diff --git a/tests/TransitionTests/res/layout/two_buttons.xml b/tests/TransitionTests/res/layout/two_buttons.xml
new file mode 100644
index 0000000..23d59f8
--- /dev/null
+++ b/tests/TransitionTests/res/layout/two_buttons.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="fill_parent"
+              android:layout_height="fill_parent"
+              android:id="@+id/container">
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/button1"/>
+    <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/button2"/>
+</LinearLayout>
\ No newline at end of file
diff --git a/tests/TransitionTests/src/com/android/transitiontests/DelayedTransition.java b/tests/TransitionTests/src/com/android/transitiontests/DelayedTransition.java
new file mode 100644
index 0000000..f05ea78
--- /dev/null
+++ b/tests/TransitionTests/src/com/android/transitiontests/DelayedTransition.java
@@ -0,0 +1,66 @@
+/*
+ * 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 com.android.transitiontests;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.transition.TransitionManager;
+import android.widget.Button;
+import android.widget.LinearLayout;
+import static android.widget.LinearLayout.LayoutParams;
+
+public class DelayedTransition extends Activity {
+
+    private static final int SEARCH_SCREEN = 0;
+    private static final int RESULTS_SCREEN = 1;
+    ViewGroup mSceneRoot;
+    static int mCurrentScene;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.two_buttons);
+
+        final Button button1 = (Button) findViewById(R.id.button1);
+        final Button button2 = (Button) findViewById(R.id.button2);
+        final LinearLayout container = (LinearLayout) findViewById(R.id.container);
+        button1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                int buttonWidth = button1.getWidth();
+                int containerWidth = container.getWidth();
+                if (buttonWidth < containerWidth) {
+                    TransitionManager.beginDelayedTransition(container, null);
+                    button1.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
+                            LayoutParams.WRAP_CONTENT));
+                    TransitionManager.beginDelayedTransition(container, null);
+                    button2.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
+                            LayoutParams.MATCH_PARENT));
+                } else {
+                    TransitionManager.beginDelayedTransition(container, null);
+                    button1.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
+                            LayoutParams.WRAP_CONTENT));
+                    TransitionManager.beginDelayedTransition(container, null);
+                    button2.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
+                            LayoutParams.WRAP_CONTENT));
+                }
+            }
+        });
+    }
+
+}