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samaneh_62

من مستقیما ننوشتم sdcARD و طبق گفته ی شما نوشتم.اگر اجازه بدین کل کدها رو براتون می نویسم .از سایت شما هم استفاده کردم فقط ببخشید که طولانیه
هدف: دانلود از اینترنت و ذخیره ی فایل در حافظه و بعد اجرای همون فایل در یک محیطی مثل مدیاپلیر.
1- فایل Main_DownloadJirjirak.java. قراره فایل رو از یه آدرسی دانلود کنه و تو حافظه ذخیره کنه:

کد پی‌اچ‌پی:

کد پی‌اچ‌پی:
public class Main_DownloadJirjirak extends Activity {
       public ProgressDialog mProgressDialog;
       private Button button1;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main_downloadjirjirak);
                button1=(Button)findViewById(R.id.button1);
                final DownloadTask downloadTask = new DownloadTask(Main_DownloadJirjirak.this); // MainActivity = activity name
                 // instantiate it within the onCreate method
                mProgressDialog = new ProgressDialog(Main_DownloadJirjirak.this); // MainActivity = activity name
                mProgressDialog.setMessage("File is downloading ...");
                mProgressDialog.setIndeterminate(true);
                mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                mProgressDialog.setCancelable(true);

                button1.setOnClickListener(new OnClickListener() {
                    @Override
                    public void onClick(View arg0) {
                         // execute this when the downloader must be fired
                        
                        downloadTask.execute("https://yuma.servershost.net:2083/cpsess7509643735/download?skipencode=1&file=%2fhome%2fdastsazi%2fsound_gheseh%2fjirjirak.mp3"); // the url to the file you want to download
                        
                        Intent Main_Page=new Intent(Main_DownloadJirjirak.this,Main.class) ;
                           startActivity(Main_Page);
                    }
                });
               
                 mProgressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
                    @Override
                    public void onCancel(DialogInterface dialog) {
                        downloadTask.cancel(true);
                    }
                });
        }

       // usually, subclasses of AsyncTask are declared inside the activity class.
        // that way, you can easily modify the UI thread from here
        private class DownloadTask extends AsyncTask<String, Integer, String> {

            private Context context;

            public DownloadTask(Context context) {
                this.context = context;
            }

            @SuppressWarnings("resource")
            @Override
            protected String doInBackground(String... sUrl) {
                // take CPU lock to prevent CPU from going off if the user
                // presses the power button during download
                PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
                PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
                     getClass().getName());
                wl.acquire();

                try {
                    InputStream input = null;
                    OutputStream output = null;
                    HttpURLConnection connection = null;
                    try {
                        URL url = new URL(sUrl[0]);
                        connection = (HttpURLConnection) url.openConnection();
                        connection.connect();

                        // expect HTTP 200 OK, so we don't mistakenly save error report
                        // instead of the file
                        if (connection.getResponseCode() != HttpURLConnection.HTTP_OK)
                             return "Server returned HTTP " + connection.getResponseCode()
                                 + " " + connection.getResponseMessage();

                        // this will be useful to display download percentage
                        // might be -1: server did not report the length
                        int fileLength = connection.getContentLength();

                        // download the file
                        File root = android.os.Environment.getExternalStorageDirectory();
                        File file = new File(root.getAbsolutePath() + "/jirjirak.mp3");   
                        input= connection.getInputStream();
                        output = new FileOutputStream(root.getAbsolutePath() + "/jirjirak.mp3");  

                        byte data[] = new byte[4096];
                        long total = 0;
                        int count;
                        while ((count = input.read(data)) != -1) {
                            // allow canceling with back button
                            if (isCancelled())
                                return null;
                            total += count;
                            // publishing the progress....
                            if (fileLength > 0) // only if total length is known
                                publishProgress((int) (total * 100 / fileLength));
                            output.write(data, 0, count);
                        }
                    } catch (Exception e) {
                        return e.toString();
                    } finally {
                        try {
                            if (output != null)
                                output.close();
                            if (input != null)
                                input.close();
                        }
                        catch (IOException ignored) { }

                        if (connection != null)
                            connection.disconnect();
                    }
                } finally {
                    wl.release();
                }
                return null;
            }
           
            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                mProgressDialog.show();
            }

            @Override
            protected void onProgressUpdate(Integer... progress) {
                super.onProgressUpdate(progress);
                // if we get here, length is known, now set indeterminate to false
                mProgressDialog.setIndeterminate(false);
                mProgressDialog.setMax(100);
                mProgressDialog.setProgress(progress[0]);
            }

            @Override
            protected void onPostExecute(String result) {
                mProgressDialog.dismiss();
                if (result != null)
                    Toast.makeText(context,"Download error: "+result, Toast.LENGTH_LONG).show();
                else
                    Toast.makeText(context,"Download completed ", Toast.LENGTH_SHORT).show();
            }
           
        }
  } 

2- فایل یا همون اکتیویتی Main_JirjirakPage.java که وظیفه ی اجرای فایل دانلودی رو بر عهده داره.(اینجا ار raw میخونه ولی من میخوام از همون جایی که دانلود و ذخیره شده بخونه) :

کد پی‌اچ‌پی:
public class Main_JirjirakPage extends Activity {
    private MediaPlayer mediaPlayer;
    public TextView songName, duration;
    private double timeElapsed = 0, finalTime = 0;
    private int forwardTime = 2000, backwardTime = 2000;
    private Handler durationHandler = new Handler();
    private SeekBar seekbar;
    

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        //set the layout of the Activity
        setContentView(R.layout.main_jirjirakpage);

        //initialize views
        initializeViews();
    
    }
    public void initializeViews(){
        songName = (TextView) findViewById(R.id.songName);
        mediaPlayer = MediaPlayer.create(this,R.raw.jirjirak);
        finalTime = mediaPlayer.getDuration();
        duration = (TextView) findViewById(R.id.songDuration);
        seekbar = (SeekBar) findViewById(R.id.seekBar);
        songName.setText("Sample_Song.mp3");
        seekbar.setMax((int) finalTime);
        seekbar.setClickable(false);
    }

    
    // play mp3 song
    public void play(View view) {
        try {
    
            mediaPlayer.setDataSource("data/mine/jirjirak.mp3");
        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (SecurityException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalStateException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        mediaPlayer.start();
        timeElapsed = mediaPlayer.getCurrentPosition();
        seekbar.setProgress((int) timeElapsed);
        durationHandler.postDelayed(updateSeekBarTime, 100);
    }

    //handler to change seekBarTime
    private Runnable updateSeekBarTime = new Runnable() {
        public void run() {
            //get current position
            timeElapsed = mediaPlayer.getCurrentPosition();
            //set seekbar progress
            seekbar.setProgress((int) timeElapsed);
            //set time remaing
            double timeRemaining = finalTime - timeElapsed;
        
        
            //repeat yourself that again in 100 miliseconds
            durationHandler.postDelayed(this, 100);
        }
    };

    // pause mp3 song
    public void pause(View view) {
        mediaPlayer.pause();
    }

    // go forward at forwardTime seconds
    public void forward(View view) {
        //check if we can go forward at forwardTime seconds before song endes
        if ((timeElapsed + forwardTime) <= finalTime) {
            timeElapsed = timeElapsed + forwardTime;

            //seek to the exact second of the track
            mediaPlayer.seekTo((int) timeElapsed);
        }
    }

    // go backwards at backwardTime seconds
    public void rewind(View view) {
        //check if we can go back at backwardTime seconds after song starts
        if ((timeElapsed - backwardTime) > 0) {
            timeElapsed = timeElapsed - backwardTime;
            
            //seek to the exact second of the track
            mediaPlayer.seekTo((int) timeElapsed);
        }
    }


} 

اکتیویتی Main.java که صفح ه ی اولیه که تو اجرا نشون داده میشه :

کد پی‌اچ‌پی:
public class Main extends ActionBarActivity {

    
    private ImageView imageView1_main_jirjirak;
    private ImageView imageView1_main_moosh;
    private ImageView imageView1_main_andaze_donya;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        imageView1_main_jirjirak=(ImageView) findViewById(R.id.imageView1_main_jirjirak);
        imageView1_main_moosh=(ImageView) findViewById(R.id.imageView1_main_moosh);
        imageView1_main_andaze_donya=(ImageView) findViewById(R.id.imageView1_main_andaze_donya);
        
        imageView1_main_jirjirak.setOnClickListener(new OnClickListener() {
            public void onClick(View arg0) {
                
                File root = android.os.Environment.getExternalStorageDirectory();
                File file2=new File(root.getAbsolutePath() + "/jirjirak.mp3");
                
                if (file2.exists()){
                     Intent jirjirak=new Intent(Main.this,com.jirjirak.com.Main_JirjirakPage.class) ;
                     startActivity(jirjirak);
                                          }
                else
                    {
                    Intent mydownload=new Intent(Main.this,com.jirjirak.com.Main_DownloadJirjirak.class) ;
                     startActivity(mydownload);
                     
                    }
            }
        }); 

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