Leo仿【DOTA视频站】项目实践【二】---- 优库SDK学习

        从优库开发者网站下下来优库的SDK，直接将YoukuLoginSDK，YoukuPlayerOpenSDK，PlayerDemo依次导入到Eclipse中。其中YoukuLoginSDK，YoukuPlayerOpenSDK是作为PlayerDemo的library库的。还有就是在YoukuPlayerOpenSDK开发指南中，也有关于视频下载缓存，视频播放等的介绍。比较简单易懂，也就不再多做说明了。

        在这里说明一下我在PlayerDemo的基础上新添加的一个游戏视频显示按钮-----它从优库视频中搜索出了5条游戏视频，通过http的get方式（优库API中有）。先上代码：

package com.example.playerdemo;import java.io.ByteArrayOutputStream;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import org.json.JSONArray;import org.json.JSONObject;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.util.Log;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ListView;import android.widget.SimpleAdapter;public class DotaActivity extends Activity {private ListView listView;private Handler handler;private static List<Map<String, String>> list;private SimpleAdapter simpleAdapter;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.dota_activity);list = new ArrayList<Map<String, String>>();listView = (ListView) findViewById(R.id.list);handler = new Handler() {@Overridepublic void handleMessage(Message msg) {// TODO Auto-generated method stubswitch (msg.what) {case 0:break;case 1:simpleAdapter = new SimpleAdapter(getApplicationContext(),list, android.R.layout.simple_list_item_2,new String[] { "title", "duration" }, new int[] {android.R.id.text1, android.R.id.text2 });listView.setAdapter(simpleAdapter);listView.setOnItemClickListener(new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1,int arg2, long arg3) {// TODO Auto-generated method stubLog.i("jiangguohu","list.get(arg2).get(id) == "+list.get(arg2).get("id"));Intent i = new Intent(DotaActivity.this, PlayerActivity.class);i.putExtra("vid", list.get(arg2).get("id").trim());DotaActivity.this.startActivity(i);}});break;default:break;}}};thread.start();}/** * 把输入流转换成字符数组 *  * @param inputStream *            输入流 * @return 字符数组 * @throws Exception */public static byte[] readStream(InputStream inputStream) throws Exception {ByteArrayOutputStream bout = new ByteArrayOutputStream();byte[] buffer = new byte[1024];int len = 0;while ((len = inputStream.read(buffer)) != -1) {bout.write(buffer, 0, len);}bout.close();inputStream.close();return bout.toByteArray();}Thread thread = new Thread(new Runnable() {public void run() {boolean b = false;try {Map<String, String> params = new HashMap<String, String>();params.put("client_id", "XXXXXXXXXXXXXXXXXXXX");//换成你应用的client_idparams.put("count", "5");params.put("category", "游戏");// params.put("page", "1");b = sendGETRequest("https://openapi.youku.com/v2/videos/by_category.json",params);} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();Log.i("jiangguohu", "exception2 e = " + e);}if (b) {handler.sendEmptyMessage(1);} else {handler.sendEmptyMessage(0);}}});private static boolean sendGETRequest(String path,Map<String, String> params) throws Exception {// 发送地http://192.168.100.91:8080/videoService/login?username=abc&password=123// StringBuilder是用来组拼请求地址和参数StringBuilder sb = new StringBuilder();sb.append(path).append("?");if (params != null && params.size() != 0) {for (Map.Entry<String, String> entry : params.entrySet()) {// 如果请求参数中有中文，需要进行URLEncoder编码sb.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "utf-8"));sb.append("&");}sb.deleteCharAt(sb.length() - 1);}URL url = new URL(sb.toString());HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setConnectTimeout(5000);conn.setRequestMethod("GET");if (conn.getResponseCode() == 200) {Log.i("jiangguohu", "conn.getResponseCode() == 200");InputStream is = conn.getInputStream(); // 获取输入流byte[] data = readStream(is); // 把输入流转换成字符数组String json = new String(data); // 把字符数组转换成字符串Log.i("jiangguohu", "json = " + json);JSONObject jsonObject = new JSONObject(json);JSONArray jsonArray = (JSONArray) jsonObject.opt("videos");Map<String, String> map = null;for (int i = 0; i < jsonArray.length(); i++) {JSONObject item = jsonArray.getJSONObject(i); // 每条记录又由几个Object对象组成String title = item.getString("title"); // 获取对象对应的标题String id = item.getString("id");String link = item.getString("link");int duration = item.getInt("duration");Log.i("jiangguohu","item.getString category = "+item.getString("category"));map = new HashMap<String, String>(); // 存放到MAP里面map.put("id", id);map.put("title", title);map.put("link", link);map.put("duration", duration+"");list.add(map);}return true;}return false;}}

其中json对应的字段名字等在优库OpenAPI中都有详细说明。本来是想去搜索DOTA视频的，可是当我设置params.put("category", "DOTA");之后没有搜到，搜出来的结果是乱七八糟的东西。有待改进。