Java tutorial
/* * Copyright (C) 2014 ChatWing * * 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.chatwing.whitelabel.fragments; import android.app.Activity; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.GridView; import com.chatwing.whitelabel.ChatWingApplication; import com.chatwing.whitelabel.R; import com.chatwing.whitelabel.adapters.EmoticonsPageAdapter; import com.chatwing.whitelabel.pojos.Emoticon; import com.chatwing.whitelabel.utils.JsonConstantsProvider; import java.io.Serializable; import javax.inject.Inject; /** * Author: Huy Nguyen * Date: 7/8/13 * Time: 3:14 PM */ public class EmoticonsFragment extends Fragment { @Inject EmoticonsPageAdapter adapter; private static final String EXTRA_EMOTICONS = "emoticons"; private InjectableFragmentDelegate mDelegate; public static EmoticonsFragment newInstance(Emoticon[] emoticons) { EmoticonsFragment instance = new EmoticonsFragment(); Bundle args = new Bundle(); args.putSerializable(EXTRA_EMOTICONS, emoticons); instance.setArguments(args); return instance; } @Override public void onAttach(Activity activity) { super.onAttach(activity); mDelegate = ((InjectableFragmentDelegate) activity); } @Override public void onDetach() { super.onDetach(); mDelegate = null; } public EmoticonsFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View root = inflater.inflate(R.layout.fragment_emoticons, container, false); return root; } @Override public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); mDelegate.inject(this); Serializable serializable = getArguments().getSerializable(EXTRA_EMOTICONS); Emoticon[] emoticons; if (serializable instanceof Emoticon[]) { emoticons = (Emoticon[]) serializable; } else { emoticons = JsonConstantsProvider.emoticonObject; //FIXME How can serializable be null? } adapter.setEmoticons(emoticons); GridView viewPager = (GridView) view.findViewById(R.id.gridview); viewPager.setAdapter(adapter); } }