package com.mugua.mgvideo.ui.category.fragment;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import org.apache.http.Header;
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import org.json.JSONObject;
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import com.google.gson.FieldNamingPolicy;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.gson.reflect.TypeToken;
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import com.handmark.pulltorefresh.library.PullToRefreshBase;
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import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode;
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import com.handmark.pulltorefresh.library.PullToRefreshScrollView;
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import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;
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import com.lcjian.library.RetainViewFragment;
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import com.lcjian.library.util.cache.DiskLruCache;
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import com.lcjian.library.util.common.StorageUtils;
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import com.mugua.mgvideo.R;
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import com.nostra13.universalimageloader.cache.disc.naming.Md5FileNameGenerator;
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import com.umeng.analytics.MobclickAgent;
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import com.mugua.mgvideo.MGVideoAPI;
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import com.mugua.mgvideo.ui.category.ChannelAdapter;
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import com.mugua.mgvideo.ui.category.ChannelAdapterHot;
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import com.yeshi.base.entity.video.VideoType;
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import com.yeshi.base.utils.http.BasicTextHttpResponseHandler;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.GridView;
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import android.widget.ScrollView;
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import android.widget.TextView;
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/**
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* 频道碎片
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*/
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public class ChannelFragment extends RetainViewFragment {
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private PullToRefreshScrollView channelScrollView;
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private GridView gv_channel, gv_channel_hot;
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private TextView tv_hotsort;
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private DiskLruCache cache;
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// 判断请求是否成功，默认成功，避免二次执行请求
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private boolean isSucceed = true;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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try {
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cache = DiskLruCache.open(
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new File(StorageUtils.getCacheDirectory(getActivity())
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.toString(), "http"), getVersionNum(getActivity()),
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1, 1024 * 1024);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/** 获取频道页数据 */
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private void getCategories() {
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if (getActivity() == null)
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return;
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SharedPreferences preferences = getActivity().getSharedPreferences(
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"user", Context.MODE_PRIVATE);
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String uid = preferences.getString("uid", "");
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MGVideoAPI.getClass(getActivity(), uid,
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new BasicTextHttpResponseHandler() {
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@Override
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public void onSuccessPerfect(int statusCode,
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Header[] headers, JSONObject jsonObject)
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throws Exception {
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if (jsonObject.getBoolean("IsPost")) {
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getdatas(jsonObject.getJSONObject("Data")
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.getJSONArray("data").toString());
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// cache.remove(getKey("getCategories"));
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DiskLruCache.Editor editor = cache
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.edit(getKey("getCategories"));
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editor.set(0, jsonObject.getJSONObject("Data")
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.getJSONArray("data").toString());
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editor.commit();
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isSucceed = true;
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}
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}
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@Override
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public void onFailure(int statusCode, Header[] headers,
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byte[] responseBytes, Throwable throwable) {
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super.onFailure(statusCode, headers, responseBytes,
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throwable);
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isSucceed = false;
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}
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@Override
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public void onFinish() {
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channelScrollView.onRefreshComplete();
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}
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});
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}
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/**
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* 通过json String获取数据
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*
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* @param jsonObject
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* jsonObject.getJSONObject("Data").getJSONArray("data").toString
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* ()
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* @throws Exception
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*/
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protected void getdatas(String jsonObject) throws Exception {
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Gson gson = new GsonBuilder().setFieldNamingPolicy(
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FieldNamingPolicy.UPPER_CAMEL_CASE).create();
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List<VideoType> categories = gson.fromJson(jsonObject,
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new TypeToken<List<VideoType>>() {
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}.getType());
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List<VideoType> mainTypes = new ArrayList<VideoType>();
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List<VideoType> hotTypes = new ArrayList<VideoType>();
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for (VideoType vt : categories) {
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if ("1".equalsIgnoreCase(vt.getMain())) {// 主分类
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mainTypes.add(vt);
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} else {// 热门分类
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hotTypes.add(vt);
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}
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}
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if (hotTypes.size() > 0) {
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gv_channel_hot.setVisibility(View.VISIBLE);
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tv_hotsort.setVisibility(View.INVISIBLE);
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} else {
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gv_channel_hot.setVisibility(View.GONE);
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}
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gv_channel.setAdapter(new ChannelAdapter(mainTypes, getActivity()));
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gv_channel_hot
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.setAdapter(new ChannelAdapterHot(hotTypes, getActivity()));
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// 显示热门分类
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if (tv_hotsort.getVisibility() == View.INVISIBLE) {
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tv_hotsort.setVisibility(View.VISIBLE);
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}
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}
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@Override
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public void onResume() {
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super.onResume();
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}
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@Override
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public void onPause() {
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super.onPause();
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}
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private String getKey(String method) {
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return new Md5FileNameGenerator().generate(method);
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}
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/** 获取版本号 */
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public static int getVersionNum(Context context) {
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try {
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PackageInfo pi = context.getPackageManager().getPackageInfo(
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context.getPackageName(), 0);
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return pi.versionCode;
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} catch (NameNotFoundException e) {
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e.printStackTrace();
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return 1;
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}
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}
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@Override
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public int getContentResource() {
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return R.layout.category_channel;
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}
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@Override
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public void onCreateView(View contentView, Bundle savedInstanceState) {
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channelScrollView = (PullToRefreshScrollView) contentView
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.findViewById(R.id.channel_ptrsv);
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channelScrollView.setMode(Mode.PULL_FROM_START);
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channelScrollView
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.setOnRefreshListener(new OnRefreshListener<ScrollView>() {
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@Override
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public void onRefresh(
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PullToRefreshBase<ScrollView> refreshView) {
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// TODO 频道下拉刷新逻辑
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getCategories();
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}
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});
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tv_hotsort = (TextView) contentView
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.findViewById(R.id.category_channel_tv_hot);
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gv_channel = (GridView) contentView
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.findViewById(R.id.category_channel_gv_sort);
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gv_channel_hot = (GridView) contentView
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.findViewById(R.id.category_channel_gv_hotsort);
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if (cache != null) {
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DiskLruCache.Snapshot snapshot = null;
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try {
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snapshot = cache.get(getKey("getCategories"));
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if (snapshot != null) {
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getdatas(snapshot.getString(0));
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if (snapshot != null) {
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snapshot.close();
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}
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}
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}
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getCategories();
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}
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/** 刷新分类页 */
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public void refreshCategories() {
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if (!isSucceed) {// 之前请求失败时才执行
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getCategories();
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}
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}
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}
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