在 recyclerview 中播放从数据库加载的视频

Question

我遵循了一个教程，该教程允许我在回收 android 中从 mysql 数据库加载数据，一切都做得很好。在加载的数据中，有视频链接，我希望当用户点击 recyclerview 元素时，他可以播放相应的视频。请问我该怎么做？

这是从数据库加载视频的代码

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {

// CONNECTION_TIMEOUT and READ_TIMEOUT are in milliseconds
public static final int CONNECTION_TIMEOUT = 10000;
public static final int READ_TIMEOUT = 15000;
private RecyclerView recyclerView;
private Adapter mAdapter;
private DatabaseReference mDatabase;
List<Data> data = new ArrayList<>();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    //Make call to AsyncTask
    new AsyncLogin().execute();

    RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
    recyclerView.setLayoutManager(mLayoutManager);
    recyclerView.setItemAnimator(new DefaultItemAnimator());

    RecycleClick.addTo(recyclerView).setOnItemClickListener(new RecycleClick.OnItemClickListener() {
        @Override
        public void onItemClicked(RecyclerView recyclerView, int position, View v) {
            String url = data.get(position).sizeName;
            String name = data.get(position).fishName;
            String titre = data.get(position).catName;
            for(int i = 0;i<data.size();i++) {
                Intent intent = new Intent(MainActivity.this, PlayVideo.class);
                intent.putExtra("url", url);
                intent.putExtra("name", name);
                intent.putExtra("title", titre);
                startActivity(intent);
            }
            overridePendingTransition(R.anim.activity_back_in, R.anim.activity_back_out);
            finish();
            Toast.makeText(getApplicationContext(), "On Click\nPosition : "+(position+1)+"\nTitle : "+"", Toast.LENGTH_SHORT).show();
        }
    });

    RecycleClick.addTo(recyclerView).setOnItemLongClickListener(new RecycleClick.OnItemLongClickListener() {
        @Override
        public boolean onItemLongClicked(RecyclerView recyclerView, int position, View v) {
            return true;
        }
    });
}

private class AsyncLogin extends AsyncTask<String, String, String> {
    ProgressDialog pdLoading = new ProgressDialog(MainActivity.this);
    HttpURLConnection conn;
    URL url = null;

    @Override
    protected void onPreExecute() {
        super.onPreExecute();

        //this method will be running on UI thread
        pdLoading.setMessage("\tLoading...");
        pdLoading.setCancelable(false);
        pdLoading.show();

    }

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

            // Enter URL address where your json file resides
            // Even you can make call to php file which returns json data
            url = new URL("http://192.168.43.196/vibe2/essai4.php");

        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return e.toString();
        }
        try {

            // Setup HttpURLConnection class to send and receive data from php and mysql
            conn = (HttpURLConnection) url.openConnection();
            conn.setReadTimeout(READ_TIMEOUT);
            conn.setConnectTimeout(CONNECTION_TIMEOUT);
            conn.setRequestMethod("GET");

            // setDoOutput to true as we recieve data from json file
            conn.setDoOutput(true);

        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
            return e1.toString();
        }

        try {

            int response_code = conn.getResponseCode();

            // Check if successful connection made
            if (response_code == HttpURLConnection.HTTP_OK) {

                // Read data sent from server
                InputStream input = conn.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(input));
                StringBuilder result = new StringBuilder();
                String line;

                while ((line = reader.readLine()) != null) {
                    result.append(line);
                }

                // Pass data to onPostExecute method
                return (result.toString());

            } else {

                return ("unsuccessful");
            }

        } catch (IOException e) {
            e.printStackTrace();
            return e.toString();
        } finally {
            conn.disconnect();
        }


    }

    @Override
    protected void onPostExecute(String result) {

        //this method will be running on UI thread

        pdLoading.dismiss();
        List<Data> data=new ArrayList<>();

        pdLoading.dismiss();
        try {

            JSONArray jArray = new JSONArray(result);

            // Extract data from json and store into ArrayList as class objects
            for(int i=0;i<jArray.length();i++){
                JSONObject json_data = jArray.getJSONObject(i);
                Data DataItem = new Data();
                DataItem.fishImage= json_data.getString("ImagePath");
                DataItem.fishName= json_data.getString("AndroidNames");
                DataItem.catName= json_data.getString("titre");
                DataItem.sizeName= json_data.getString("url");
                DataItem.price= json_data.getInt("counter");
                data.add(DataItem);
            }

            // Setup and Handover data to recyclerview
            mAdapter = new Adapter(MainActivity.this, data);
            recyclerView.setAdapter(mAdapter);
            recyclerView.setLayoutManager(new LinearLayoutManager(MainActivity.this));

        } catch (JSONException e) {
            Toast.makeText(MainActivity.this, e.toString(), Toast.LENGTH_LONG).show();
        }

    }

}

} 这是我的点击

RecycleClick.addTo(recyclerView).setOnItemClickListener(new RecycleClick.OnItemClickListener() {
        @Override
        public void onItemClicked(RecyclerView recyclerView, int position, View v) {


        }
    });

Answer 1

@Override
    protected void onPostExecute(String result) {

        //this method will be running on UI thread
        pdLoading.dismiss();
        final List<Data> data=new ArrayList<>();

        pdLoading.dismiss();
        try {

            JSONArray jArray = new JSONArray(result);

            // Extract data from json and store into ArrayList as class objects
            for(int i=0;i<jArray.length();i++){
                JSONObject json_data = jArray.getJSONObject(i);
                Data DataItem = new Data();
                DataItem.fishImage= json_data.getString("ImagePath");
                DataItem.fishName= json_data.getString("AndroidNames");
                DataItem.catName= json_data.getString("titre");
                DataItem.sizeName= json_data.getString("url");
                DataItem.price= json_data.getInt("counter");
                data.add(DataItem);
            }

            // Setup and Handover data to recyclerview
            mAdapter = new Adapter(MainActivity.this, data);
            recyclerView.setAdapter(mAdapter);
            recyclerView.setLayoutManager(new LinearLayoutManager(MainActivity.this));
            RecycleClick.addTo(recyclerView).setOnItemClickListener(new RecycleClick.OnItemClickListener() {
                @Override
                public void onItemClicked(RecyclerView recyclerView, int position, View v) {
                    Intent intent = new Intent(MainActivity.this, PlayVideo.class);
                    intent.putExtra("url", data.get(position).sizeName);
                    startActivity(intent);
                    overridePendingTransition(R.anim.activity_back_in, R.anim.activity_back_out);
                    finish();
                }
            });

        } catch (JSONException e) {
            Toast.makeText(MainActivity.this, e.toString(), Toast.LENGTH_LONG).show();
        }

在 recyclerview 中播放从数据库加载的视频

play a video loaded from the database in a recyclerview

android

android-json