Android 我创建了一个歌曲播放器，它具有播放、暂停等基本功能，但我想在下面介绍一个功能
我创建了一个在线广播播放器TuneUP，它具有播放、暂停等基本功能。当我单击播放列表时，将播放当前歌曲索引。现在，当歌曲播放时，我使用intent按下后退按钮转到我的家庭活动，歌曲仍在播放。但是，当我想点击播放器按钮转到播放器时，我的播放/暂停按钮的状态为“播放”，当我点击播放按钮时，我会在使用前向您提供我的代码示例加入此概念。plz帮助我如何在主屏幕上添加播放/暂停按钮以停止播放歌曲。我希望类似于此plz，请参见下图 主屏幕Android 我创建了一个歌曲播放器，它具有播放、暂停等基本功能，但我想在下面介绍一个功能,android,android-layout,android-xml,android-audiomanager,android-music-player,Android,Android Layout,Android Xml,Android Audiomanager,Android Music Player,我创建了一个在线广播播放器TuneUP，它具有播放、暂停等基本功能。当我单击播放列表时，将播放当前歌曲索引。现在，当歌曲播放时，我使用intent按下后退按钮转到我的家庭活动，歌曲仍在播放。但是，当我想点击播放器按钮转到播放器时，我的播放/暂停按钮的状态为“播放”，当我点击播放按钮时，我会在使用前向您提供我的代码示例加入此概念。plz帮助我如何在主屏幕上添加播放/暂停按钮以停止播放歌曲。我希望类似于此plz，请参见下图 主屏幕 public class MainActivity extends
public class MainActivity extends TabActivity {
String[] actions = new String[] { "Tune-Up", "About Us", "Like-Us",
"Other", "Exit" };
Spinner country_list;
private TextView tv_radio_name;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);
TabHost tabHost = getTabHost();
TabSpec allcallspec = tabHost.newTabSpec("listner");
allcallspec.setIndicator("listener");
Intent allIntent = new Intent(this, Tab_Listner.class);
allcallspec.setContent(allIntent);
// Tab for recived call
TabSpec recivespec = tabHost.newTabSpec("Like");
// setting Title and Icon for the Tab
recivespec.setIndicator("Like");
Intent reciveIntent = new Intent(MainActivity.this, Tab_Like.class);
recivespec.setContent(reciveIntent);
TabSpec recivespec1 = tabHost.newTabSpec("Categery");
// setting Title and Icon for the Tab
recivespec1.setIndicator("CateGories");
Intent reciveIntent1 = new Intent(MainActivity.this,
Category_name.class);
recivespec1.setContent(reciveIntent1);
tabHost.addTab(recivespec);
tabHost.addTab(allcallspec); // Adding photos tab
// Adding songs tab
tabHost.addTab(recivespec1); // Adding songs tab
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// MenuItem mainMenuSpinner = menu.findItem( R.id.menu_main_spinner);
// setupMainMenuSpinner( mainMenuSpinner );
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
Log.i("Device Versoin is", "" + currentapiVersion);
if (currentapiVersion >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
ActionBar actionBar = getActionBar();
getMenuInflater().inflate(R.menu.mainactivity, menu);
Log.i("Android Version is", "Belove Froyo Action Bar Not Displayed");
MenuItem statusSpinner = menu.findItem(R.id.menu_status_spinner);
setupStatusSpinner(statusSpinner);
}
return super.onCreateOptionsMenu(menu);
}
private void setupStatusSpinner(MenuItem item) {
View view = item.getActionView();
if (view instanceof Spinner) {
Spinner spinner = (Spinner) view;
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
getBaseContext(),
android.R.layout.simple_spinner_dropdown_item, actions);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
switch (arg2) {
case 1:
Log.i("About US", "Go");
startActivity(new Intent(MainActivity.this,
About_Us.class));
break;
case 2:
String url = "https://www.facebook.com/musicbreeds";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
break;
case 3:
Log.i("Other", "Go");
startActivity(new Intent(MainActivity.this, Other.class));
break;
case 4:
Log.i("Exit", "unSuccess");
System.out.print("not.......................");
System.exit(0);
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
}
}
public class Tab_Like extends Activity {
ListView lv;
TextView t1, t2;
ImageView iv;
public static String name, rating, like, radio_url, id, listner, image;
private ProgressDialog dialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
// super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.category_name_radio);
setProgressBarIndeterminateVisibility(true);
setProgressBarIndeterminateVisibility(false);
super.onCreate(savedInstanceState);
TextView tv = (TextView) findViewById(R.id.textView1);
lv = (ListView) findViewById(R.id.list_view);
t1 = (TextView) findViewById(R.id.tv_country);
t2 = (TextView) findViewById(R.id.tv_country_details);
iv = (ImageView) findViewById(R.id.iv_flag);
// URL to the JSON data
String strUrl = "http://vaibhavtech.com/work/android/json_radio.php?cat=like";
// Creating a new non-ui thread task to download json data
DownloadTask downloadTask = new DownloadTask();
// Starting the download process
downloadTask.execute(strUrl);
// Getting a reference to ListView of activity_main
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
int songIndex = arg2;
Intent intent = new Intent(Tab_Like.this, Play_Radio.class);
intent.putExtra("songIndex", songIndex);
setResult(100, intent);
radio_url = ((TextView) arg1
.findViewById(R.id.tv_other_data_radio_url)).getText()
.toString();
rating = ((TextView) arg1
.findViewById(R.id.tv_other_data_rating)).getText()
.toString();
id = ((TextView) arg1.findViewById(R.id.tv_other_data_id))
.getText().toString();
name = ((TextView) arg1.findViewById(R.id.tv_other_data_name))
.getText().toString();
Tab_Listner.id = id;
Tab_Listner.radio_url = radio_url;
Tab_Listner.name = name;
Tab_Listner.rating = rating;
startActivity(intent);
}
});
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
exitByBackKey();
// moveTaskToBack(false);
return true;
}
return super.onKeyDown(keyCode, event);
}
protected void exitByBackKey() {
AlertDialog alertbox = new AlertDialog.Builder(this)
.setMessage("Do you want to exit application?")
.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
// do something when the button is clicked
public void onClick(DialogInterface arg0, int arg1) {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
finish();
System.exit(0);
// close();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
// do something when the button is clicked
public void onClick(DialogInterface arg0, int arg1) {
}
}).show();
}
/** A method to download json data from url */
private String downloadUrl(String strUrl) throws IOException {
String data = "";
InputStream iStream = null;
try {
URL url = new URL(strUrl);
// Creating an http connection to communicate with url
HttpURLConnection urlConnection = (HttpURLConnection) url
.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(
iStream));
StringBuffer sb = new StringBuffer();
String line = "";
while ((line = br.readLine()) != null) {
sb.append(line);
}
data = sb.toString();
br.close();
} catch (Exception e) {
Log.d("Exception while downloading url", e.toString());
} finally {
iStream.close();
}
return data;
}
/** AsyncTask to download json data */
private class DownloadTask extends AsyncTask<String, Integer, String> {
String data = null;
// LinearLayout linlaHeaderProgress = (LinearLayout)
// findViewById(R.id.linlaH);
@Override
protected void onPreExecute() {
// SHOW THE SPINNER WHILE LOADING FEEDS
// linlaHeaderProgress.setVisibility(View.VISIBLE);
super.onPreExecute();
dialog = ProgressDialog.show(Tab_Like.this, "", "Loading...", true);
}
@Override
protected String doInBackground(String... url) {
try {
data = downloadUrl(url[0]);
} catch (Exception e) {
Log.d("Background Task", e.toString());
}
return data;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
// The parsing of the xml data is done in a non-ui thread
ListViewLoaderTask listViewLoaderTask = new ListViewLoaderTask();
listViewLoaderTask.execute(result);
}
}
/** AsyncTask to parse json data and load ListView */
private class ListViewLoaderTask extends
AsyncTask<String, Void, SimpleAdapter> {
JSONObject jObject;
// Doing the parsing of xml data in a non-ui thread
@Override
protected SimpleAdapter doInBackground(String... strJson) {
try {
jObject = new JSONObject(strJson[0]);
StarterParser countryJsonParser = new StarterParser();
countryJsonParser.parse(jObject);
} catch (Exception e) {
Log.d("JSON Exception1", e.toString());
}
// Instantiating json parser class
StarterParser countryJsonParser = new StarterParser();
// A list object to store the parsed countries list
List<HashMap<String, Object>> countries = null;
try {
// Getting the parsed data as a List construct
countries = countryJsonParser.parse(jObject);
} catch (Exception e) {
Log.d("Exception", e.toString());
}
// Keys used in Hashmap
String[] from = { "image", "id", "like", "rating", "listener",
"radio_url", "name" };
// Ids of views in listview_layout
int[] to = { R.id.iv_other_data_image, R.id.tv_other_data_id,
R.id.tv_other_data_like, R.id.tv_other_data_rating,
R.id.tv_other_data_listner, R.id.tv_other_data_radio_url,
R.id.tv_other_data_name };
SimpleAdapter adapter = new SimpleAdapter(getBaseContext(),
countries, R.layout.lv_radio_detail, from, to);
return adapter;
}
/** Invoked by the Android on "doInBackground" is executed */
@Override
protected void onPostExecute(SimpleAdapter adapter) {
// Setting adapter for the listview
if (dialog != null)
dialog.dismiss();
lv.setAdapter(adapter);
}
}
}
public class Play_Radio extends Activity {
private ImageView playButton;
private TextView textStreamed, tv_radio_name, tv_radio_cat;
private boolean isPlaying;
private static StreamingMediaPlayer audioStreamer;
private AudioManager audioManager = null;
ImageView iv_like;
Dialog rankDialog;
RatingBar ratingBar, pre_rating;
float cus_rating;
AdView adView;
Dialog dialog;
public static String name, rating, like, radio_url, id, listner, image;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setVolumeControlStream(AudioManager.STREAM_MUSIC);
setContentView(R.layout.play_radio);
if (audioStreamer != null) {
try {
Log.i("Already ply", "Succss");
audioStreamer.stop();
} catch (Exception e) {
}
} else {
Log.i("First time", "Play");
}
initControls();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
Log.i("On Pause is call", "Succcess");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
Log.i("Device Versoin is", "" + currentapiVersion);
if (currentapiVersion >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
ActionBar actionBar = getActionBar();
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayHomeAsUpEnabled(true);
getMenuInflater().inflate(R.menu.main, menu);
Log.i("Android Device above", "Home Enbled");
}
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
case R.id.home:
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
Log.i("Home", "Press");
return true;
}
return super.onOptionsItemSelected(item);
}
private void initControls() {
iv_like = (ImageView) findViewById(R.id.iv_activity_like);
iv_like.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Vibrator v1 = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
v1.vibrate(40);
Toast.makeText(getApplicationContext(),
"Thanks For like Our Station", Toast.LENGTH_LONG)
.show();
}
});
audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
textStreamed = (TextView) findViewById(R.id.text_kb_streamed);
playButton = (ImageView) findViewById(R.id.imageView1);
playButton.setEnabled(false);
playButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Log.i("Click sadg ", "success");
Vibrator v1 = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
v1.vibrate(40);
if (audioStreamer.getMediaPlayer().isPlaying()) {
Log.i("play ", "success");
audioStreamer.getMediaPlayer().pause();
playButton.setImageResource(R.drawable.play_radio_play);
} else {
Log.i("pause", "success");
audioStreamer.getMediaPlayer().start();
audioStreamer.startPlayProgressUpdater();
playButton.setImageResource(R.drawable.play_radio_pause);
}
isPlaying = !isPlaying;
}
});
// rating radio sation
ImageView rankBtn = (ImageView) findViewById(R.id.iv_activity_rating);
rankBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
rankDialog = new Dialog(Play_Radio.this,
R.style.FullHeightDialog);
rankDialog.setContentView(R.layout.rating_bar);
rankDialog.setCancelable(true);
ratingBar = (RatingBar) rankDialog
.findViewById(R.id.dialog_ratingbar);
float userRankValue = 0;
// ratingBar.setRating(userRankValue);
ratingBar
.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
@Override
public void onRatingChanged(RatingBar ratingBar,
float rating, boolean fromUser) {
// TODO Auto-generated method stub
cus_rating = rating;
}
});
Button updateButton = (Button) rankDialog
.findViewById(R.id.rank_dialog_button);
updateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(Play_Radio.this,
"Thanks For Rating Our Stations",
Toast.LENGTH_LONG).show();
rankDialog.dismiss();
}
});
// now that the dialog is set up, it's time to show it
rankDialog.show();
}
});
String urlstring2 = Tab_Listner.radio_url;
Toast.makeText(Play_Radio.this, "Please Wait...", Toast.LENGTH_LONG)
.show();
startStreamingAudio(urlstring2);
tv_radio_cat = (TextView) findViewById(R.id.tv_play_radio_cat);
tv_radio_name = (TextView) findViewById(R.id.tv_play_radio_name);
tv_radio_name.setText(Tab_Listner.name);
pre_rating = (RatingBar) findViewById(R.id.ratingBar1);
pre_rating.setRating(Float.parseFloat(Tab_Listner.rating));
}
private void startStreamingAudio(String urlstring) {
try {
dialog = new Dialog(Play_Radio.this,
android.R.style.Theme_Translucent_NoTitleBar);
dialog.setContentView(R.layout.progress_layout);
dialog.setTitle("loading...");
dialog.show();
ProgressBar progressBar = (ProgressBar) findViewById(R.id.progress_bar);
if (audioStreamer != null) {
audioStreamer.interrupt();
}
audioStreamer = new StreamingMediaPlayer(this, textStreamed,
playButton, progressBar, dialog);
audioStreamer.startStreaming(urlstring, 5208, 216);
// streamButton.setEnabled(false);
// playButton.setEnabled(true);
} catch (Exception e) {
Log.e(getClass().getName(), "Error starting to stream audio.", e);
}
}
public void onItemSelected(AdapterView parent, View v, int position, long id) {
mSwitcher.setImageResource(mImageIds[position]);
}
public void onNothingSelected(AdapterView parent) {
}
public View makeView() {
ImageView i = new ImageView(this);
i.setBackgroundColor(0xFF000000);
i.setScaleType(ImageView.ScaleType.FIT_CENTER);
i.setLayoutParams(new ImageSwitcher.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
return i;
}
private ImageSwitcher mSwitcher;
public class ImageAdapter extends BaseAdapter {
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return mThumbIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ImageView i = new ImageView(mContext);
i.setImageResource(mThumbIds[position]);
i.setAdjustViewBounds(true);
i.setLayoutParams(new Gallery.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
i.setBackgroundResource(R.drawable.picture_frame);
return i;
}
private Context mContext;
}
private Integer[] mThumbIds = { R.drawable.calculator, R.drawable.calendar,
R.drawable.camera };
private Integer[] mImageIds = { R.drawable.calculator, R.drawable.calendar,
R.drawable.camera };
}
public class StreamingMediaPlayer {
private static final int INTIAL_KB_BUFFER = 96 * 10 / 8;// assume
// 96kbps*10secs/8bits
// per byte
private TextView textStreamed;
private ImageView playButton;
private Dialog dialog;
private ProgressBar progressBar;
// Track for display by progressBar
private long mediaLengthInKb, mediaLengthInSeconds;
private int totalKbRead = 0;
// Create Handler to call View updates on the main UI thread.
private final Handler handler = new Handler();
private MediaPlayer mediaPlayer;
private File downloadingMediaFile;
private boolean isInterrupted;
private Context context;
private int counter = 0;
public StreamingMediaPlayer(Context context, TextView textStreamed,
ImageView playButton, ProgressBar progressBar, Dialog dialog) {
this.context = context;
this.textStreamed = textStreamed;
this.playButton = playButton;
this.progressBar = progressBar;
this.dialog = dialog;
}
/**
* Progressivly download the media to a temporary location and update the
* MediaPlayer as new content becomes available.
*/
public void startStreaming(final String mediaUrl, long mediaLengthInKb,
long mediaLengthInSeconds) throws IOException {
this.mediaLengthInKb = mediaLengthInKb;
this.mediaLengthInSeconds = mediaLengthInSeconds;
Runnable r = new Runnable() {
public void run() {
// Dialog dialog=null;
try {
downloadAudioIncrement(mediaUrl);
} catch (IOException e) {
Log.e(getClass().getName(),
"Unable to initialize the MediaPlayer for fileUrl="
+ mediaUrl, e);
return;
}
}
};
new Thread(r).start();
}
/**
* Download the url stream to a temporary location and then call the
* setDataSource for that local file
*/
public void downloadAudioIncrement(String mediaUrl) throws IOException {
URLConnection cn = new URL(mediaUrl).openConnection();
cn.connect();
InputStream stream = cn.getInputStream();
if (stream == null) {
Log.e(getClass().getName(),
"Unable to create InputStream for mediaUrl:" + mediaUrl);
}
downloadingMediaFile = new File(context.getCacheDir(),
"downloadingMedia.dat");
if (downloadingMediaFile.exists()) {
downloadingMediaFile.delete();
}
FileOutputStream out = new FileOutputStream(downloadingMediaFile);
byte buf[] = new byte[16384];
int totalBytesRead = 0, incrementalBytesRead = 0;
do {
int numread = stream.read(buf);
if (numread <= 0)
break;
out.write(buf, 0, numread);
totalBytesRead += numread;
incrementalBytesRead += numread;
totalKbRead = totalBytesRead / 1000;
testMediaBuffer();
fireDataLoadUpdate();
} while (validateNotInterrupted());
stream.close();
if (validateNotInterrupted()) {
fireDataFullyLoaded();
}
}
private boolean validateNotInterrupted() {
if (isInterrupted) {
if (mediaPlayer != null) {
mediaPlayer.pause();
// mediaPlayer.release();
}
return false;
} else {
return true;
}
}
private void testMediaBuffer() {
Runnable updater = new Runnable() {
public void run() {
if (mediaPlayer == null) {
// Only create the MediaPlayer once we have the minimum
// buffered data
if (totalKbRead >= INTIAL_KB_BUFFER) {
try {
startMediaPlayer();
} catch (Exception e) {
Log.e(getClass().getName(),
"Error copying buffered conent.", e);
}
}
} else if (mediaPlayer.getDuration()
- mediaPlayer.getCurrentPosition() <= 1000) {
transferBufferToMediaPlayer();
}
}
};
handler.post(updater);
}
private void startMediaPlayer() {
try {
File bufferedFile = new File(context.getCacheDir(), "playingMedia"
+ (counter++) + ".dat");
moveFile(downloadingMediaFile, bufferedFile);
Log.e(getClass().getName(),
"Buffered File path: " + bufferedFile.getAbsolutePath());
Log.e(getClass().getName(),
"Buffered File length: " + bufferedFile.length() + "");
mediaPlayer = createMediaPlayer(bufferedFile);
// We have pre-loaded enough content and started the MediaPlayer so
// update the buttons & progress meters.
mediaPlayer.start();
startPlayProgressUpdater();
playButton.setEnabled(true);
} catch (IOException e) {
Log.e(getClass().getName(), "Error initializing the MediaPlayer.",
e);
return;
}
}
private MediaPlayer createMediaPlayer(File mediaFile) throws IOException {
MediaPlayer mPlayer = new MediaPlayer();
mPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
public boolean onError(MediaPlayer mp, int what, int extra) {
Log.e(getClass().getName(), "Error in MediaPlayer: (" + what
+ ") with extra (" + extra + ")");
return false;
}
});
FileInputStream fis = new FileInputStream(mediaFile);
mPlayer.setDataSource(fis.getFD());
mPlayer.prepare();
return mPlayer;
}
private void transferBufferToMediaPlayer() {
try {
// First determine if we need to restart the player after
// transferring data...e.g. perhaps the user pressed pause
boolean wasPlaying = mediaPlayer.isPlaying();
int curPosition = mediaPlayer.getCurrentPosition();
// Copy the currently downloaded content to a new buffered File.
// Store the old File for deleting later.
File oldBufferedFile = new File(context.getCacheDir(),
"playingMedia" + counter + ".dat");
File bufferedFile = new File(context.getCacheDir(), "playingMedia"
+ (counter++) + ".dat");
// This may be the last buffered File so ask that it be delete on
// exit. If it's already deleted, then this won't mean anything. If
// you want to
// keep and track fully downloaded files for later use, write
// caching code and please send me a copy.
bufferedFile.deleteOnExit();
moveFile(downloadingMediaFile, bufferedFile);
mediaPlayer.pause();
mediaPlayer = createMediaPlayer(bufferedFile);
mediaPlayer.seekTo(curPosition);
boolean atEndOfFile = mediaPlayer.getDuration()
- mediaPlayer.getCurrentPosition() <= 1000;
if (wasPlaying || atEndOfFile) {
mediaPlayer.start();
}
oldBufferedFile.delete();
} catch (Exception e) {
Log.e(getClass().getName(),
"Error updating to newly loaded content.", e);
}
}
private void fireDataLoadUpdate() {
Runnable updater = new Runnable() {
public void run() {
textStreamed.setText((totalKbRead + "Kb"));
float loadProgress = ((float) totalKbRead / (float) mediaLengthInKb);
progressBar.setSecondaryProgress((int) (loadProgress * 100));
if (dialog != null)
dialog.dismiss();
}
};
handler.post(updater);
}
private void fireDataFullyLoaded() {
Runnable updater = new Runnable() {
public void run() {
transferBufferToMediaPlayer();
// Delete the downloaded File as it's now been transferred to
// the currently playing buffer file.
downloadingMediaFile.delete();
textStreamed
.setText(("Audio full loaded: " + totalKbRead + " Kb read"));
}
};
handler.post(updater);
}
public MediaPlayer getMediaPlayer() {
return mediaPlayer;
}
public void startPlayProgressUpdater() {
float progress = (((float) mediaPlayer.getCurrentPosition() / 1000) / mediaLengthInSeconds);
progressBar.setProgress((int) (progress * 100));
if (dialog != null)
dialog.dismiss();
if (mediaPlayer.isPlaying()) {
Runnable notification = new Runnable() {
public void run() {
startPlayProgressUpdater();
}
};
handler.postDelayed(notification, 1000);
}
}
public void interrupt() {
playButton.setEnabled(false);
isInterrupted = true;
validateNotInterrupted();
}
/**
* Move the file in oldLocation to newLocation.
*/
public void moveFile(File oldLocation, File newLocation) throws IOException {
if (oldLocation.exists()) {
BufferedInputStream reader = new BufferedInputStream(
new FileInputStream(oldLocation));
BufferedOutputStream writer = new BufferedOutputStream(
new FileOutputStream(newLocation, false));
try {
// byte[] buff = new byte[8192];
/* changing the size of the buffer */
byte[] buff = new byte[16384];
int numChars;
while ((numChars = reader.read(buff, 0, buff.length)) != -1) {
writer.write(buff, 0, numChars);
}
} catch (IOException ex) {
throw new IOException("IOException when transferring "
+ oldLocation.getPath() + " to "
+ newLocation.getPath());
} finally {
try {
if (reader != null) {
writer.close();
reader.close();
}
} catch (IOException ex) {
Log.e(getClass().getName(),
"Error closing files when transferring "
+ oldLocation.getPath() + " to "
+ newLocation.getPath());
}
}
} else {
throw new IOException(
"Old location does not exist when transferring "
+ oldLocation.getPath() + " to "
+ newLocation.getPath());
}
}
public void change_volume(float vol) {
Log.i("Media Player volume change", "Success" + vol);
mediaPlayer.setVolume(vol, vol);
}
public void stop() {
mediaPlayer.stop();
}
public void stoppreviousPlayer() {
if (mediaPlayer.isPlaying()) {
mediaPlayer.stop();
}
}
}
public class MainActivity extends TabActivity {
String[] actions = new String[] { "Tune-Up", "About Us", "Like-Us",
"Other", "Exit" };
Spinner country_list;
private TextView tv_radio_name;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);
TabHost tabHost = getTabHost();
TabSpec allcallspec = tabHost.newTabSpec("listner");
allcallspec.setIndicator("listener");
Intent allIntent = new Intent(this, Tab_Listner.class);
allcallspec.setContent(allIntent);
// Tab for recived call
TabSpec recivespec = tabHost.newTabSpec("Like");
// setting Title and Icon for the Tab
recivespec.setIndicator("Like");
Intent reciveIntent = new Intent(MainActivity.this, Tab_Like.class);
recivespec.setContent(reciveIntent);
TabSpec recivespec1 = tabHost.newTabSpec("Categery");
// setting Title and Icon for the Tab
recivespec1.setIndicator("CateGories");
Intent reciveIntent1 = new Intent(MainActivity.this,
Category_name.class);
recivespec1.setContent(reciveIntent1);
tabHost.addTab(recivespec);
tabHost.addTab(allcallspec); // Adding photos tab
// Adding songs tab
tabHost.addTab(recivespec1); // Adding songs tab
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// MenuItem mainMenuSpinner = menu.findItem( R.id.menu_main_spinner);
// setupMainMenuSpinner( mainMenuSpinner );
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
Log.i("Device Versoin is", "" + currentapiVersion);
if (currentapiVersion >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
ActionBar actionBar = getActionBar();
getMenuInflater().inflate(R.menu.mainactivity, menu);
Log.i("Android Version is", "Belove Froyo Action Bar Not Displayed");
MenuItem statusSpinner = menu.findItem(R.id.menu_status_spinner);
setupStatusSpinner(statusSpinner);
}
return super.onCreateOptionsMenu(menu);
}
private void setupStatusSpinner(MenuItem item) {
View view = item.getActionView();
if (view instanceof Spinner) {
Spinner spinner = (Spinner) view;
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
getBaseContext(),
android.R.layout.simple_spinner_dropdown_item, actions);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
switch (arg2) {
case 1:
Log.i("About US", "Go");
startActivity(new Intent(MainActivity.this,
About_Us.class));
break;
case 2:
String url = "https://www.facebook.com/musicbreeds";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
break;
case 3:
Log.i("Other", "Go");
startActivity(new Intent(MainActivity.this, Other.class));
break;
case 4:
Log.i("Exit", "unSuccess");
System.out.print("not.......................");
System.exit(0);
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
}
}
public class Tab_Like extends Activity {
ListView lv;
TextView t1, t2;
ImageView iv;
public static String name, rating, like, radio_url, id, listner, image;
private ProgressDialog dialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
// super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.category_name_radio);
setProgressBarIndeterminateVisibility(true);
setProgressBarIndeterminateVisibility(false);
super.onCreate(savedInstanceState);
TextView tv = (TextView) findViewById(R.id.textView1);
lv = (ListView) findViewById(R.id.list_view);
t1 = (TextView) findViewById(R.id.tv_country);
t2 = (TextView) findViewById(R.id.tv_country_details);
iv = (ImageView) findViewById(R.id.iv_flag);
// URL to the JSON data
String strUrl = "http://vaibhavtech.com/work/android/json_radio.php?cat=like";
// Creating a new non-ui thread task to download json data
DownloadTask downloadTask = new DownloadTask();
// Starting the download process
downloadTask.execute(strUrl);
// Getting a reference to ListView of activity_main
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
int songIndex = arg2;
Intent intent = new Intent(Tab_Like.this, Play_Radio.class);
intent.putExtra("songIndex", songIndex);
setResult(100, intent);
radio_url = ((TextView) arg1
.findViewById(R.id.tv_other_data_radio_url)).getText()
.toString();
rating = ((TextView) arg1
.findViewById(R.id.tv_other_data_rating)).getText()
.toString();
id = ((TextView) arg1.findViewById(R.id.tv_other_data_id))
.getText().toString();
name = ((TextView) arg1.findViewById(R.id.tv_other_data_name))
.getText().toString();
Tab_Listner.id = id;
Tab_Listner.radio_url = radio_url;
Tab_Listner.name = name;
Tab_Listner.rating = rating;
startActivity(intent);
}
});
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
exitByBackKey();
// moveTaskToBack(false);
return true;
}
return super.onKeyDown(keyCode, event);
}
protected void exitByBackKey() {
AlertDialog alertbox = new AlertDialog.Builder(this)
.setMessage("Do you want to exit application?")
.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
// do something when the button is clicked
public void onClick(DialogInterface arg0, int arg1) {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
finish();
System.exit(0);
// close();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
// do something when the button is clicked
public void onClick(DialogInterface arg0, int arg1) {
}
}).show();
}
/** A method to download json data from url */
private String downloadUrl(String strUrl) throws IOException {
String data = "";
InputStream iStream = null;
try {
URL url = new URL(strUrl);
// Creating an http connection to communicate with url
HttpURLConnection urlConnection = (HttpURLConnection) url
.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(
iStream));
StringBuffer sb = new StringBuffer();
String line = "";
while ((line = br.readLine()) != null) {
sb.append(line);
}
data = sb.toString();
br.close();
} catch (Exception e) {
Log.d("Exception while downloading url", e.toString());
} finally {
iStream.close();
}
return data;
}
/** AsyncTask to download json data */
private class DownloadTask extends AsyncTask<String, Integer, String> {
String data = null;
// LinearLayout linlaHeaderProgress = (LinearLayout)
// findViewById(R.id.linlaH);
@Override
protected void onPreExecute() {
// SHOW THE SPINNER WHILE LOADING FEEDS
// linlaHeaderProgress.setVisibility(View.VISIBLE);
super.onPreExecute();
dialog = ProgressDialog.show(Tab_Like.this, "", "Loading...", true);
}
@Override
protected String doInBackground(String... url) {
try {
data = downloadUrl(url[0]);
} catch (Exception e) {
Log.d("Background Task", e.toString());
}
return data;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
// The parsing of the xml data is done in a non-ui thread
ListViewLoaderTask listViewLoaderTask = new ListViewLoaderTask();
listViewLoaderTask.execute(result);
}
}
/** AsyncTask to parse json data and load ListView */
private class ListViewLoaderTask extends
AsyncTask<String, Void, SimpleAdapter> {
JSONObject jObject;
// Doing the parsing of xml data in a non-ui thread
@Override
protected SimpleAdapter doInBackground(String... strJson) {
try {
jObject = new JSONObject(strJson[0]);
StarterParser countryJsonParser = new StarterParser();
countryJsonParser.parse(jObject);
} catch (Exception e) {
Log.d("JSON Exception1", e.toString());
}
// Instantiating json parser class
StarterParser countryJsonParser = new StarterParser();
// A list object to store the parsed countries list
List<HashMap<String, Object>> countries = null;
try {
// Getting the parsed data as a List construct
countries = countryJsonParser.parse(jObject);
} catch (Exception e) {
Log.d("Exception", e.toString());
}
// Keys used in Hashmap
String[] from = { "image", "id", "like", "rating", "listener",
"radio_url", "name" };
// Ids of views in listview_layout
int[] to = { R.id.iv_other_data_image, R.id.tv_other_data_id,
R.id.tv_other_data_like, R.id.tv_other_data_rating,
R.id.tv_other_data_listner, R.id.tv_other_data_radio_url,
R.id.tv_other_data_name };
SimpleAdapter adapter = new SimpleAdapter(getBaseContext(),
countries, R.layout.lv_radio_detail, from, to);
return adapter;
}
/** Invoked by the Android on "doInBackground" is executed */
@Override
protected void onPostExecute(SimpleAdapter adapter) {
// Setting adapter for the listview
if (dialog != null)
dialog.dismiss();
lv.setAdapter(adapter);
}
}
}
public class Play_Radio extends Activity {
private ImageView playButton;
private TextView textStreamed, tv_radio_name, tv_radio_cat;
private boolean isPlaying;
private static StreamingMediaPlayer audioStreamer;
private AudioManager audioManager = null;
ImageView iv_like;
Dialog rankDialog;
RatingBar ratingBar, pre_rating;
float cus_rating;
AdView adView;
Dialog dialog;
public static String name, rating, like, radio_url, id, listner, image;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setVolumeControlStream(AudioManager.STREAM_MUSIC);
setContentView(R.layout.play_radio);
if (audioStreamer != null) {
try {
Log.i("Already ply", "Succss");
audioStreamer.stop();
} catch (Exception e) {
}
} else {
Log.i("First time", "Play");
}
initControls();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
Log.i("On Pause is call", "Succcess");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
Log.i("Device Versoin is", "" + currentapiVersion);
if (currentapiVersion >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
ActionBar actionBar = getActionBar();
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayHomeAsUpEnabled(true);
getMenuInflater().inflate(R.menu.main, menu);
Log.i("Android Device above", "Home Enbled");
}
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
case R.id.home:
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
Log.i("Home", "Press");
return true;
}
return super.onOptionsItemSelected(item);
}
private void initControls() {
iv_like = (ImageView) findViewById(R.id.iv_activity_like);
iv_like.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Vibrator v1 = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
v1.vibrate(40);
Toast.makeText(getApplicationContext(),
"Thanks For like Our Station", Toast.LENGTH_LONG)
.show();
}
});
audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
textStreamed = (TextView) findViewById(R.id.text_kb_streamed);
playButton = (ImageView) findViewById(R.id.imageView1);
playButton.setEnabled(false);
playButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Log.i("Click sadg ", "success");
Vibrator v1 = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
v1.vibrate(40);
if (audioStreamer.getMediaPlayer().isPlaying()) {
Log.i("play ", "success");
audioStreamer.getMediaPlayer().pause();
playButton.setImageResource(R.drawable.play_radio_play);
} else {
Log.i("pause", "success");
audioStreamer.getMediaPlayer().start();
audioStreamer.startPlayProgressUpdater();
playButton.setImageResource(R.drawable.play_radio_pause);
}
isPlaying = !isPlaying;
}
});
// rating radio sation
ImageView rankBtn = (ImageView) findViewById(R.id.iv_activity_rating);
rankBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
rankDialog = new Dialog(Play_Radio.this,
R.style.FullHeightDialog);
rankDialog.setContentView(R.layout.rating_bar);
rankDialog.setCancelable(true);
ratingBar = (RatingBar) rankDialog
.findViewById(R.id.dialog_ratingbar);
float userRankValue = 0;
// ratingBar.setRating(userRankValue);
ratingBar
.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
@Override
public void onRatingChanged(RatingBar ratingBar,
float rating, boolean fromUser) {
// TODO Auto-generated method stub
cus_rating = rating;
}
});
Button updateButton = (Button) rankDialog
.findViewById(R.id.rank_dialog_button);
updateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(Play_Radio.this,
"Thanks For Rating Our Stations",
Toast.LENGTH_LONG).show();
rankDialog.dismiss();
}
});
// now that the dialog is set up, it's time to show it
rankDialog.show();
}
});
String urlstring2 = Tab_Listner.radio_url;
Toast.makeText(Play_Radio.this, "Please Wait...", Toast.LENGTH_LONG)
.show();
startStreamingAudio(urlstring2);
tv_radio_cat = (TextView) findViewById(R.id.tv_play_radio_cat);
tv_radio_name = (TextView) findViewById(R.id.tv_play_radio_name);
tv_radio_name.setText(Tab_Listner.name);
pre_rating = (RatingBar) findViewById(R.id.ratingBar1);
pre_rating.setRating(Float.parseFloat(Tab_Listner.rating));
}
private void startStreamingAudio(String urlstring) {
try {
dialog = new Dialog(Play_Radio.this,
android.R.style.Theme_Translucent_NoTitleBar);
dialog.setContentView(R.layout.progress_layout);
dialog.setTitle("loading...");
dialog.show();
ProgressBar progressBar = (ProgressBar) findViewById(R.id.progress_bar);
if (audioStreamer != null) {
audioStreamer.interrupt();
}
audioStreamer = new StreamingMediaPlayer(this, textStreamed,
playButton, progressBar, dialog);
audioStreamer.startStreaming(urlstring, 5208, 216);
// streamButton.setEnabled(false);
// playButton.setEnabled(true);
} catch (Exception e) {
Log.e(getClass().getName(), "Error starting to stream audio.", e);
}
}
public void onItemSelected(AdapterView parent, View v, int position, long id) {
mSwitcher.setImageResource(mImageIds[position]);
}
public void onNothingSelected(AdapterView parent) {
}
public View makeView() {
ImageView i = new ImageView(this);
i.setBackgroundColor(0xFF000000);
i.setScaleType(ImageView.ScaleType.FIT_CENTER);
i.setLayoutParams(new ImageSwitcher.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
return i;
}
private ImageSwitcher mSwitcher;
public class ImageAdapter extends BaseAdapter {
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return mThumbIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ImageView i = new ImageView(mContext);
i.setImageResource(mThumbIds[position]);
i.setAdjustViewBounds(true);
i.setLayoutParams(new Gallery.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
i.setBackgroundResource(R.drawable.picture_frame);
return i;
}
private Context mContext;
}
private Integer[] mThumbIds = { R.drawable.calculator, R.drawable.calendar,
R.drawable.camera };
private Integer[] mImageIds = { R.drawable.calculator, R.drawable.calendar,
R.drawable.camera };
}
public class StreamingMediaPlayer {
private static final int INTIAL_KB_BUFFER = 96 * 10 / 8;// assume
// 96kbps*10secs/8bits
// per byte
private TextView textStreamed;
private ImageView playButton;
private Dialog dialog;
private ProgressBar progressBar;
// Track for display by progressBar
private long mediaLengthInKb, mediaLengthInSeconds;
private int totalKbRead = 0;
// Create Handler to call View updates on the main UI thread.
private final Handler handler = new Handler();
private MediaPlayer mediaPlayer;
private File downloadingMediaFile;
private boolean isInterrupted;
private Context context;
private int counter = 0;
public StreamingMediaPlayer(Context context, TextView textStreamed,
ImageView playButton, ProgressBar progressBar, Dialog dialog) {
this.context = context;
this.textStreamed = textStreamed;
this.playButton = playButton;
this.progressBar = progressBar;
this.dialog = dialog;
}
/**
* Progressivly download the media to a temporary location and update the
* MediaPlayer as new content becomes available.
*/
public void startStreaming(final String mediaUrl, long mediaLengthInKb,
long mediaLengthInSeconds) throws IOException {
this.mediaLengthInKb = mediaLengthInKb;
this.mediaLengthInSeconds = mediaLengthInSeconds;
Runnable r = new Runnable() {
public void run() {
// Dialog dialog=null;
try {
downloadAudioIncrement(mediaUrl);
} catch (IOException e) {
Log.e(getClass().getName(),
"Unable to initialize the MediaPlayer for fileUrl="
+ mediaUrl, e);
return;
}
}
};
new Thread(r).start();
}
/**
* Download the url stream to a temporary location and then call the
* setDataSource for that local file
*/
public void downloadAudioIncrement(String mediaUrl) throws IOException {
URLConnection cn = new URL(mediaUrl).openConnection();
cn.connect();
InputStream stream = cn.getInputStream();
if (stream == null) {
Log.e(getClass().getName(),
"Unable to create InputStream for mediaUrl:" + mediaUrl);
}
downloadingMediaFile = new File(context.getCacheDir(),
"downloadingMedia.dat");
if (downloadingMediaFile.exists()) {
downloadingMediaFile.delete();
}
FileOutputStream out = new FileOutputStream(downloadingMediaFile);
byte buf[] = new byte[16384];
int totalBytesRead = 0, incrementalBytesRead = 0;
do {
int numread = stream.read(buf);
if (numread <= 0)
break;
out.write(buf, 0, numread);
totalBytesRead += numread;
incrementalBytesRead += numread;
totalKbRead = totalBytesRead / 1000;
testMediaBuffer();
fireDataLoadUpdate();
} while (validateNotInterrupted());
stream.close();
if (validateNotInterrupted()) {
fireDataFullyLoaded();
}
}
private boolean validateNotInterrupted() {
if (isInterrupted) {
if (mediaPlayer != null) {
mediaPlayer.pause();
// mediaPlayer.release();
}
return false;
} else {
return true;
}
}
private void testMediaBuffer() {
Runnable updater = new Runnable() {
public void run() {
if (mediaPlayer == null) {
// Only create the MediaPlayer once we have the minimum
// buffered data
if (totalKbRead >= INTIAL_KB_BUFFER) {
try {
startMediaPlayer();
} catch (Exception e) {
Log.e(getClass().getName(),
"Error copying buffered conent.", e);
}
}
} else if (mediaPlayer.getDuration()
- mediaPlayer.getCurrentPosition() <= 1000) {
transferBufferToMediaPlayer();
}
}
};
handler.post(updater);
}
private void startMediaPlayer() {
try {
File bufferedFile = new File(context.getCacheDir(), "playingMedia"
+ (counter++) + ".dat");
moveFile(downloadingMediaFile, bufferedFile);
Log.e(getClass().getName(),
"Buffered File path: " + bufferedFile.getAbsolutePath());
Log.e(getClass().getName(),
"Buffered File length: " + bufferedFile.length() + "");
mediaPlayer = createMediaPlayer(bufferedFile);
// We have pre-loaded enough content and started the MediaPlayer so
// update the buttons & progress meters.
mediaPlayer.start();
startPlayProgressUpdater();
playButton.setEnabled(true);
} catch (IOException e) {
Log.e(getClass().getName(), "Error initializing the MediaPlayer.",
e);
return;
}
}
private MediaPlayer createMediaPlayer(File mediaFile) throws IOException {
MediaPlayer mPlayer = new MediaPlayer();
mPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
public boolean onError(MediaPlayer mp, int what, int extra) {
Log.e(getClass().getName(), "Error in MediaPlayer: (" + what
+ ") with extra (" + extra + ")");
return false;
}
});
FileInputStream fis = new FileInputStream(mediaFile);
mPlayer.setDataSource(fis.getFD());
mPlayer.prepare();
return mPlayer;
}
private void transferBufferToMediaPlayer() {
try {
// First determine if we need to restart the player after
// transferring data...e.g. perhaps the user pressed pause
boolean wasPlaying = mediaPlayer.isPlaying();
int curPosition = mediaPlayer.getCurrentPosition();
// Copy the currently downloaded content to a new buffered File.
// Store the old File for deleting later.
File oldBufferedFile = new File(context.getCacheDir(),
"playingMedia" + counter + ".dat");
File bufferedFile = new File(context.getCacheDir(), "playingMedia"
+ (counter++) + ".dat");
// This may be the last buffered File so ask that it be delete on
// exit. If it's already deleted, then this won't mean anything. If
// you want to
// keep and track fully downloaded files for later use, write
// caching code and please send me a copy.
bufferedFile.deleteOnExit();
moveFile(downloadingMediaFile, bufferedFile);
mediaPlayer.pause();
mediaPlayer = createMediaPlayer(bufferedFile);
mediaPlayer.seekTo(curPosition);
boolean atEndOfFile = mediaPlayer.getDuration()
- mediaPlayer.getCurrentPosition() <= 1000;
if (wasPlaying || atEndOfFile) {
mediaPlayer.start();
}
oldBufferedFile.delete();
} catch (Exception e) {
Log.e(getClass().getName(),
"Error updating to newly loaded content.", e);
}
}
private void fireDataLoadUpdate() {
Runnable updater = new Runnable() {
public void run() {
textStreamed.setText((totalKbRead + "Kb"));
float loadProgress = ((float) totalKbRead / (float) mediaLengthInKb);
progressBar.setSecondaryProgress((int) (loadProgress * 100));
if (dialog != null)
dialog.dismiss();
}
};
handler.post(updater);
}
private void fireDataFullyLoaded() {
Runnable updater = new Runnable() {
public void run() {
transferBufferToMediaPlayer();
// Delete the downloaded File as it's now been transferred to
// the currently playing buffer file.
downloadingMediaFile.delete();
textStreamed
.setText(("Audio full loaded: " + totalKbRead + " Kb read"));
}
};
handler.post(updater);
}
public MediaPlayer getMediaPlayer() {
return mediaPlayer;
}
public void startPlayProgressUpdater() {
float progress = (((float) mediaPlayer.getCurrentPosition() / 1000) / mediaLengthInSeconds);
progressBar.setProgress((int) (progress * 100));
if (dialog != null)
dialog.dismiss();
if (mediaPlayer.isPlaying()) {
Runnable notification = new Runnable() {
public void run() {
startPlayProgressUpdater();
}
};
handler.postDelayed(notification, 1000);
}
}
public void interrupt() {
playButton.setEnabled(false);
isInterrupted = true;
validateNotInterrupted();
}
/**
* Move the file in oldLocation to newLocation.
*/
public void moveFile(File oldLocation, File newLocation) throws IOException {
if (oldLocation.exists()) {
BufferedInputStream reader = new BufferedInputStream(
new FileInputStream(oldLocation));
BufferedOutputStream writer = new BufferedOutputStream(
new FileOutputStream(newLocation, false));
try {
// byte[] buff = new byte[8192];
/* changing the size of the buffer */
byte[] buff = new byte[16384];
int numChars;
while ((numChars = reader.read(buff, 0, buff.length)) != -1) {
writer.write(buff, 0, numChars);
}
} catch (IOException ex) {
throw new IOException("IOException when transferring "
+ oldLocation.getPath() + " to "
+ newLocation.getPath());
} finally {
try {
if (reader != null) {
writer.close();
reader.close();
}
} catch (IOException ex) {
Log.e(getClass().getName(),
"Error closing files when transferring "
+ oldLocation.getPath() + " to "
+ newLocation.getPath());
}
}
} else {
throw new IOException(
"Old location does not exist when transferring "
+ oldLocation.getPath() + " to "
+ newLocation.getPath());
}
}
public void change_volume(float vol) {
Log.i("Media Player volume change", "Success" + vol);
mediaPlayer.setVolume(vol, vol);
}
public void stop() {
mediaPlayer.stop();
}
public void stoppreviousPlayer() {
if (mediaPlayer.isPlaying()) {
mediaPlayer.stop();
}
}
}
公共类流媒体播放器{
私有静态final int initial_KB_BUFFER=96*10/8；//假设
//96kbps*10秒/8比特
//每字节
私有文本视图文本流；
私有图像查看播放按钮；
私人对话；
私人ProgressBar ProgressBar；
//通过progressBar显示的曲目
私人长媒体长度ThinkB，媒体长度秒；
私有int totalKbRead=0；
//创建处理程序以在主UI线程上调用视图更新。
私有最终处理程序=新处理程序（）；
私人媒体播放器；
私有文件下载媒体文件；
私有布尔值中断；
私人语境；
专用整数计数器=0；
公共流媒体播放器（上下文、文本视图、文本流媒体、，
ImageView播放按钮、进度栏、进度栏、对话框）{
this.context=上下文；
this.textStreamed=textStreamed；
this.playButton=playButton；
this.progressBar=progressBar；
this.dialog=dialog；
}
/**
*渐进地将媒体下载到临时位置并更新
*新内容可用时使用MediaPlayer。
*/
public void startStreaming（最终字符串mediaUrl，long mediaLengthInKb，
长媒体长度（秒）引发IOException{
this.mediaLengthInKb=mediaLengthInKb；
this.medialenghthinseconds=medialenghthinseconds；
Runnable r=新的Runnable（）{
公开募捐{
//Dialog=null；
试一试{
下载音频增量（mediaUrl）；
}捕获（IOE异常）{
Log.e（getClass（）.getName（），
“无法为fileUrl=初始化MediaPlayer”
+mediaUrl，e）；
返回；
}
}
};
新线程（r.start（）；
}
/**
*将url流下载到临时位置，然后调用
*该本地文件的setDataSource
*/
public void downloadAudioIncrement（字符串mediaUrl）引发IOException{
URLConnection cn=新URL（mediaUrl）.openConnection（）；
cn.connect（）；
InputStream=cn.getInputStream（）；
if（流==null）{
Log.e（getClass（）.getName（），
无法为mediaUrl创建输入流：“+mediaUrl”）；
}
downloadingMediaFile=新文件（context.getCacheDir（），
“downloadingMedia.dat”）；
if（下载MediaFile.exists（））{
下载MediaFile.delete（）；
}
FileOutputStream out=新的FileOutputStream（下载MediaFile）；
字节buf[]=新字节[16384]；
int totalBytesRead=0，incrementalBytesRead=0；
做{
int numread=stream.read（buf）；
if（numread=initial\u KB\u缓冲区）{
试一试{
startMediaPlayer（）；
}捕获（例外e）{
Log.e（getClass（）.getName（），
“复制缓冲内容时出错。”，e）；
}
}
}else if（mediaPlayer.getDuration（）
-getCurrentPosition（）的想法是在发出新请求或单击播放按钮之前关闭现有媒体播放器
为此，您可以将mediPlayer对象设置为全局对象
public void onClick(View v)
{
if (v == playButton)
{
playAudio();
}
}
public void playAudio()
{
mediaPlayer.stop();
// then proceed with your new song playing code
}
我已经尝试过了，但它不起作用。你可以帮我吗？你正在停止媒体播放的当前实例，但它仍然播放歌曲？？你可以在“主页”上的“播放暂停”按钮和当前播放歌曲的所有其他活动的底部检查“我想要这样”我不想要项目的完整代码，请给我一些时间，我会试着分析这个问题，如果我得到它，我一定会解决你的问题