如何在 android 中显示来自外部数据库 (mysql) 的视频 url？

Question

我有一个项目android来自视频url的应用流视频保存在数据库中。但是我不知道如何在数据库中显示来自视频 url 的视频？请帮帮我.... :)

public class PlayerActivity extends Activity {

private stream stream;
private ServerRequest server;
private Object newString;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_player);
    stream = new stream();
    server = new ServerRequest();
    if (savedInstanceState == null) {
        Bundle extras = getIntent().getExtras();
        if(extras == null) {
            newString= null;
        } else {
            newString= extras.getString("alamat");
        }
    } else {
        newString= (String) savedInstanceState.getSerializable("alamat");
    }
    final VideoView vid = (VideoView) findViewById(R.id.videoView);
    Uri video = Uri.parse(server.sendGetRequest(ServerRequest.urlSelectAll+"?id="+stream.getId().toString()));
    vid.setVideoURI(video);
    MediaController hhh = new MediaController(this);
    vid.setMediaController(hhh);
    vid.requestFocus();
    vid.start();

}



@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
}

我想在从列表视图中单击时播放视频，这个列表视图来自我的数据库，在我的数据库 table 中有 2 列：视频名称和视频 url。这是我的主要 activity 列表视图

public class MainActivity extends Activity {
private static final String TAG = "MainActivity";
private ListView listView;
private ActionMode actionMode;
private ActionMode.Callback amCallback;
private ProgressDialog progressDialog;
private ServerRequest serverRequest;
private List<stream> list;
private ListAdapterStream adapter;
private stream selectedList;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    serverRequest = new ServerRequest();
    listView = (ListView) findViewById(R.id.listview_main);
    list = new ArrayList<stream>();
    /** melakukan load data melalui AsyncTask */
    new MainActivityAsync().execute("load");
}





private List<stream> processResponse(String response){
    List<stream> list = new ArrayList<stream>();
    try {
        JSONObject jsonObj = new JSONObject(response);
        JSONArray jsonArray = jsonObj.getJSONArray("stream");
        Log.d(TAG, "data lengt: "+jsonArray.length());
        stream str = null;
        for(int i = 0; i < jsonArray.length(); i++){
            JSONObject obj = jsonArray.getJSONObject(i);
            str = new stream();
            str.setId(obj.getInt("id"));
            str.setVideo(obj.getString("video"));
            str.setAlamat(obj.getString("alamat"));
            list.add(str);
        }
    } catch (JSONException e) {
        Log.d(TAG, e.getMessage());
    }
    return list;
}

private void populateListView(){
    adapter = new ListAdapterStream(getApplicationContext(), list);
    listView.setAdapter(adapter);
    listView.setOnItemLongClickListener(new OnItemLongClickListener() {

        @Override
        public boolean onItemLongClick(AdapterView<?> adapterView, View v, int pos, long id) {
            if(actionMode != null){
                return false;
            }
            actionMode = startActionMode(amCallback);
            v.setSelected(true);
            selectedList = (stream) adapter.getItem(pos);
            return true;
        }

    });

    listView.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> adapterView, View v, int pos,
                                long id) {
            selectedList = (stream) adapter.getItem(pos);
            Intent in = new Intent(getApplicationContext(), PlayerActivity.class);
            in.putExtra("id", selectedList.getId().toString());
            in.putExtra("alamat", selectedList.getAlamat());
            startActivity(in);
        }
    });



}

private class MainActivityAsync extends AsyncTask<String, Void, String>{

    @Override
    protected void onPreExecute() {
        progressDialog = new ProgressDialog(MainActivity.this);
        progressDialog.setMessage("retrieving...");
        progressDialog.setIndeterminate(false);
        progressDialog.setCancelable(false);
        progressDialog.show();
    }

    @Override
    protected String doInBackground(String... params) {

            /** Mengirimkan request ke server dan memproses JSON response */
            String response = serverRequest.sendGetRequest(ServerRequest.urlSelectAll);
            list = processResponse(response);

        return null;
    }

    @Override
    protected void onPostExecute(String result) {
        progressDialog.dismiss();
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                populateListView();
            }
        });
    }
  }
}

Answer 1

您应该创建一个 API，使用 NodeJS 或 PHP 连接到您的 MySQL 数据库。 Simple JSON for PHP 就可以了。

然后，您只需通过 GSON library. Several other subjects are about the same problem. example here

从返回的 JSON 中检索 url

如何在 android 中显示来自外部数据库 (mysql) 的视频 url？

How to show video url from external database(mysql) in android?

php

mysql

video

android

json