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CustomTransition / src / com.example.android.customtransition /

CustomTransitionFragment.java

       
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        /*
       
       
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        * Copyright (C) 2014 The Android Open Source Project
       
       
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        *
       
       
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        * Licensed under the Apache License, Version 2.0 (the "License");
       
       
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        * you may not use this file except in compliance with the License.
       
       
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        * You may obtain a copy of the License at
       
       
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        *
       
       
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        *      http://www.apache.org/licenses/LICENSE-2.0
       
       
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        *
       
       
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        * Unless required by applicable law or agreed to in writing, software
       
       
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        * distributed under the License is distributed on an "AS IS" BASIS,
       
       
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        * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       
       
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        * See the License for the specific language governing permissions and
       
       
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        * limitations under the License.
       
       
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        */
       
       
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        package com.example.android.customtransition;
       
       
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        import com.example.android.common.logger.Log;
       
       
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        import android.content.Context;
       
       
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        import android.os.Bundle;
       
       
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        import android.support.v4.app.Fragment;
       
       
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        import android.transition.Scene;
       
       
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        import android.transition.Transition;
       
       
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        import android.transition.TransitionManager;
       
       
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        import android.view.LayoutInflater;
       
       
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        import android.view.View;
       
       
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        import android.view.ViewGroup;
       
       
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        import android.widget.FrameLayout;
       
       
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        public class CustomTransitionFragment extends Fragment implements View.OnClickListener {
       
       
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        private static final String STATE_CURRENT_SCENE = "current_scene";
       
       
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        /** Tag for the logger */
       
       
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        private static final String TAG = "CustomTransitionFragment";
       
       
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        /** These are the Scenes we use. */
       
       
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        private Scene[] mScenes;
       
       
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        /** The current index for mScenes. */
       
       
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        private int mCurrentScene;
       
       
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        /** This is the custom Transition we use in this sample. */
       
       
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        private Transition mTransition;
       
       
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        public CustomTransitionFragment() {
       
       
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        }
       
       
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        @Override
       
       
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        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
       
       
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        return inflater.inflate(R.layout.fragment_custom_transition, container, false);
       
       
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        }
       
       
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        @Override
       
       
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        public void onViewCreated(View view, Bundle savedInstanceState) {
       
       
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        Context context = getActivity();
       
       
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        FrameLayout container = (FrameLayout) view.findViewById(R.id.container);
       
       
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        view.findViewById(R.id.show_next_scene).setOnClickListener(this);
       
       
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        if (null != savedInstanceState) {
       
       
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        mCurrentScene = savedInstanceState.getInt(STATE_CURRENT_SCENE);
       
       
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        }
       
       
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        // We set up the Scenes here.
       
       
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        mScenes = new Scene[] {
       
       
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        Scene.getSceneForLayout(container, R.layout.scene1, context),
       
       
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        Scene.getSceneForLayout(container, R.layout.scene2, context),
       
       
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        Scene.getSceneForLayout(container, R.layout.scene3, context),
       
       
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        };
       
       
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        // This is the custom Transition.
       
       
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        mTransition = new ChangeColor();
       
       
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        // Show the initial Scene.
       
       
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        TransitionManager.go(mScenes[mCurrentScene % mScenes.length]);
       
       
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        }
       
       
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        @Override
       
       
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        public void onSaveInstanceState(Bundle outState) {
       
       
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        super.onSaveInstanceState(outState);
       
       
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        outState.putInt(STATE_CURRENT_SCENE, mCurrentScene);
       
       
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        }
       
       
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        @Override
       
       
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        public void onClick(View v) {
       
       
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        switch (v.getId()) {
       
       
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        case R.id.show_next_scene: {
       
       
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        mCurrentScene = (mCurrentScene + 1) % mScenes.length;
       
       
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        Log.i(TAG, "Transitioning to scene #" + mCurrentScene);
       
       
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        // Pass the custom Transition as second argument for TransitionManager.go
       
       
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        TransitionManager.go(mScenes[mCurrentScene], mTransition);
       
       
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        break;
       
       
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        }
       
       
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        }
       
       
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        }
       
       
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        }