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+/*
+ * Copyright (C) 2014 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.example.android.customtransition;
+
+import com.example.android.common.logger.Log;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.transition.Scene;
+import android.transition.Transition;
+import android.transition.TransitionManager;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+
+public class CustomTransitionFragment extends Fragment implements View.OnClickListener {
+
+ private static final String STATE_CURRENT_SCENE = "current_scene";
+
+ /** Tag for the logger */
+ private static final String TAG = "CustomTransitionFragment";
+
+ /** These are the Scenes we use. */
+ private Scene[] mScenes;
+
+ /** The current index for mScenes. */
+ private int mCurrentScene;
+
+ /** This is the custom Transition we use in this sample. */
+ private Transition mTransition;
+
+ public CustomTransitionFragment() {
+ }
+
+ @Override
+ public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+ return inflater.inflate(R.layout.fragment_custom_transition, container, false);
+ }
+
+ @Override
+ public void onViewCreated(View view, Bundle savedInstanceState) {
+ Context context = getActivity();
+ FrameLayout container = (FrameLayout) view.findViewById(R.id.container);
+ view.findViewById(R.id.show_next_scene).setOnClickListener(this);
+ if (null != savedInstanceState) {
+ mCurrentScene = savedInstanceState.getInt(STATE_CURRENT_SCENE);
+ }
+ // We set up the Scenes here.
+ mScenes = new Scene[] {
+ Scene.getSceneForLayout(container, R.layout.scene1, context),
+ Scene.getSceneForLayout(container, R.layout.scene2, context),
+ Scene.getSceneForLayout(container, R.layout.scene3, context),
+ };
+ // This is the custom Transition.
+ mTransition = new ChangeColor();
+ // Show the initial Scene.
+ TransitionManager.go(mScenes[mCurrentScene % mScenes.length]);
+ }
+
+ @Override
+ public void onSaveInstanceState(Bundle outState) {
+ super.onSaveInstanceState(outState);
+ outState.putInt(STATE_CURRENT_SCENE, mCurrentScene);
+ }
+
+ @Override
+ public void onClick(View v) {
+ switch (v.getId()) {
+ case R.id.show_next_scene: {
+ mCurrentScene = (mCurrentScene + 1) % mScenes.length;
+ Log.i(TAG, "Transitioning to scene #" + mCurrentScene);
+ // Pass the custom Transition as second argument for TransitionManager.go
+ TransitionManager.go(mScenes[mCurrentScene], mTransition);
+ break;
+ }
+ }
+ }
+
+}