FragmentTransitionFragment.java

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/*
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 * Copyright 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.fragmenttransition;
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import com.example.android.common.logger.Log;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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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.view.animation.Animation;
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import android.view.animation.AnimationUtils;
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import android.widget.AdapterView;
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import android.widget.GridView;
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public class FragmentTransitionFragment extends Fragment implements AdapterView.OnItemClickListener {
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    private static final String TAG = "FragmentTransitionFragment";
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    private MeatAdapter mAdapter;
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    public static FragmentTransitionFragment newInstance() {
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        return new FragmentTransitionFragment();
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    }
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    public FragmentTransitionFragment() {
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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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        // This is the adapter we use to populate the grid.
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        mAdapter = new MeatAdapter(inflater, R.layout.item_meat_grid);
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        // Inflate the layout with a GridView in it.
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        return inflater.inflate(R.layout.fragment_fragment_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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        GridView grid = (GridView) view.findViewById(R.id.grid);
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        grid.setAdapter(mAdapter);
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        grid.setOnItemClickListener(this);
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    }
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    @Override
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    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
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        Meat meat = mAdapter.getItem(position);
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        Log.i(TAG, meat.title + " clicked. Replacing fragment.");
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        // We start the fragment transaction here. It is just an ordinary fragment transaction.
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        getActivity().getSupportFragmentManager()
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                .beginTransaction()
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                .replace(R.id.sample_content_fragment,
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                        DetailFragment.newInstance(meat.resourceId, meat.title,
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                                (int) view.getX(), (int) view.getY(),
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                                view.getWidth(), view.getHeight())
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                )
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                // We push the fragment transaction to back stack. User can go back to the
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                // previous fragment by pressing back button.
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                .addToBackStack("detail")
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                .commit();
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    }
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    @Override
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    public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) {
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        return AnimationUtils.loadAnimation(getActivity(),
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                enter ? android.R.anim.fade_in : android.R.anim.fade_out);
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    }
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}