问题：
如何在Android中播放在线广播流url。如何玩.请在android中播放无线流url
孟永望
我在服务器中创建了一个XML文件。它包含标题和链接标记。我获取标记并将它们作为链接显示在ListView中。当用户点击链接时，我想播放电台应用程序中的.pls文件。
下面是我的XML文件：
<item>
<title> Kushi FM </title>
<link>http://108.163.197.114:8071/listen.pls</link>
</item>
我不知道下一个活动中的链接怎么玩。
MainActivity:
public class MainActivity extends AppCompatActivity {
// All static variables
static final String URL1 = "http://servernmae.com/stations";
// XML node keys
static final String KEY_ITEM = "item"; // parent node
static final String KEY_TITLE = "title";
static final String KEY_LINK = "link";
URL url;
URLConnection urlConnection;
//Context context;
ListView listview;
int images=R.drawable.radio;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// isNetworkAvailable(this);
listview = (ListView) findViewById(R.id.list);
if(isNetworkAvailable(this))
{
new GetData().execute();
}else {
Toast.makeText(getApplicationContext(), "Please Connect to Internet and Check Again ! Thanks)",
Toast.LENGTH_LONG).show();
}
}
private boolean isNetworkAvailable(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null) {
for (int i = 0; i < info.length; i++) {
Log.w("INTERNET:",String.valueOf(i));
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
Log.w("INTERNET:", "connected!");
return true;
}
}
}
}
return false;
}
class GetData extends AsyncTask<String, String, String> {
String xml = "error";
@Override
protected String doInBackground(String... params) {
try {
url = new URL(URL1);
urlConnection = (HttpURLConnection) url.openConnection();
InputStream in = urlConnection.getInputStream();
InputStreamReader isw = new InputStreamReader(in);
BufferedReader br = new BufferedReader(isw);
StringBuilder sb = new StringBuilder();
String line;
while ((line = br.readLine()) != null) {
sb.append(line + "\n");
}
br.close();
xml = sb.toString();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return xml;
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
final ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
ArrayList<String> title= new ArrayList<>();
//title.add("");
Document doc = null;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
doc = db.parse(is);
NodeList nl = doc.getElementsByTagName(KEY_ITEM);
for (int i = 0; i < nl.getLength(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
Element e = (Element) nl.item(i);
Log.e("TAg1", getValue(e, KEY_TITLE));
//Log.e("TAg2", getValue(e, KEY_LINK));
map.put(KEY_TITLE, getValue(e, KEY_TITLE));
map.put(KEY_LINK, getValue(e, KEY_LINK));
menuItems.add(map);
title.add(getValue(e, KEY_TITLE));
}
} catch (ParserConfigurationException e) {
Log.e("Error: ", e.getMessage());
} catch (SAXException e) {
Log.e("Error: ", e.getMessage());
} catch (IOException e) {
Log.e("Error: ", e.getMessage());
}
String[] dataArr = new String[title.size()];
dataArr = title.toArray(dataArr );
CustomAdapter adapter = new CustomAdapter(getApplicationContext(), dataArr );
listview.setAdapter(adapter);
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//HashMap<String, String> selectedMap = menuItems.get(position);
HashMap<String,String> selectedMap= menuItems.get(position);
String urls = selectedMap.get(KEY_LINK);
Intent intent = new Intent(MainActivity.this, Service_Player.class);
intent.putExtra("url",urls);
startActivity(intent);
}
});
}
public final String getElementValue(Node elem) {
Node child;
if (elem != null) {
if (elem.hasChildNodes()) {
for (child = elem.getFirstChild(); child != null; child = child.getNextSibling()) {
if (child.getNodeType() == Node.TEXT_NODE) {
return child.getNodeValue();
}
}
}
}
return "";
}
public String getValue(Element item, String str) {
NodeList n = item.getElementsByTagName(str);
return this.getElementValue(n.item(0));
}
}
public class Service_Player extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_service__player);
startService(new Intent(this, MediaPlayerService.class));
String url = getIntent().getStringExtra("url");
if (!TextUtils.isEmpty(url))
startMediaPlayer(url);
}
@Override
protected void onResume() {
super.onResume();
registerReceiver(receiverFromservice, new IntentFilter(MediaPlayerService.SERVICE_TO_ACTIVITY));
}
private String currentPlayerStatus = "N/A";
private BroadcastReceiver receiverFromservice = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (MediaPlayerService.SERVICE_TO_ACTIVITY.equalsIgnoreCase(action)) {
/*
* To get current status of player
* */
currentPlayerStatus = intent.getStringExtra(MediaPlayerService.PLAYER_STATUS_KEY);
Log.e("Player Mode", "" + currentPlayerStatus);
}
}
};
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(receiverFromservice);
}
public void startMediaPlayer(String url) {
Intent intent = new Intent();
intent.setAction(MediaPlayerService.BROADCAST_TO_SERVICE);
intent.putExtra(MediaPlayerService.PLAYER_FUNCTION_TYPE, MediaPlayerService.PLAY_MEDIA_PLAYER);
intent.putExtra(MediaPlayerService.PLAYER_TRACK_URL, url);
sendBroadcast(intent);
}
public class MediaPlayerService extends Service {
public static final String BROADCAST_TO_SERVICE = "com.mediaplayer.playerfunction";
public static final String SERVICE_TO_ACTIVITY = "com.mediaplayer.currentPlayerStatus";
public static final String PLAYER_FUNCTION_TYPE = "playerfunction";
public static final String PLAYER_TRACK_URL = "trackURL";
public static final int PLAY_MEDIA_PLAYER = 1;
public static final int PAUSE_MEDIA_PLAYER = 2;
public static final int RESUME_MEDIA_PLAYER = 3;
public static final int STOP_MEDIA_PLAYER = 4;
public static final int CHANGE_PLAYER_TRACK = 5;
public static final String PLAYER_STATUS_KEY = "PlayerCurrentStatus";
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
IntentFilter intentFilter = new IntentFilter(BROADCAST_TO_SERVICE);
registerReceiver(playerReceiver, intentFilter);
if (mPlayer != null && mPlayer.isPlaying()) {
sendPlayerStatus("playing");
}
return START_STICKY;
}
private BroadcastReceiver playerReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BROADCAST_TO_SERVICE.equalsIgnoreCase(action)) {
String trackURL = intent.hasExtra(PLAYER_TRACK_URL) ? intent.getStringExtra(PLAYER_TRACK_URL) : "";
int function = intent.getIntExtra(PLAYER_FUNCTION_TYPE, 0);
switch (function) {
case CHANGE_PLAYER_TRACK:
changeTrack(trackURL);
break;
case STOP_MEDIA_PLAYER:
stopPlayer();
break;
case PLAY_MEDIA_PLAYER:
startMediaPlayer(trackURL);
break;
case PAUSE_MEDIA_PLAYER:
pausePlayer();
break;
case RESUME_MEDIA_PLAYER:
resumePlayer();
break;
}
}
}
};
private MediaPlayer mPlayer;
private void pausePlayer() {
if (mPlayer != null && mPlayer.isPlaying()) {
mPlayer.pause();
sendPlayerStatus("pause");
}
}
private void resumePlayer() {
if (mPlayer != null && !mPlayer.isPlaying()) {
mPlayer.start();
sendPlayerStatus("playing");
}
}
private void changeTrack(String url) {
stopPlayer();
startMediaPlayer(url);
}
private void stopPlayer() {
if (mPlayer != null) {
mPlayer.stop();
mPlayer.release();
mPlayer = null;
sendPlayerStatus("stopped");
}
}
public void startMediaPlayer(String url) {
if (TextUtils.isEmpty(url))
return;
if (mPlayer == null)
mPlayer = new MediaPlayer();
try {
mPlayer.setDataSource(url);
mPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
if (extra == MediaPlayer.MEDIA_ERROR_SERVER_DIED
|| extra == MediaPlayer.MEDIA_ERROR_MALFORMED) {
sendPlayerStatus("erroronplaying");
} else if (extra == MediaPlayer.MEDIA_ERROR_IO) {
sendPlayerStatus("erroronplaying");
return false;
}
return false;
}
});
mPlayer.setOnBufferingUpdateListener(new MediaPlayer.OnBufferingUpdateListener() {
public void onBufferingUpdate(MediaPlayer mp, int percent) {
Log.e("onBufferingUpdate", "" + percent);
}
});
mPlayer.prepareAsync();
mPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
mPlayer.start();
sendPlayerStatus("playing");
}
});
mPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
Log.e("onCompletion", "Yes");
sendPlayerStatus("completed");
}
});
mPlayer.setOnInfoListener(new MediaPlayer.OnInfoListener() {
@Override
public boolean onInfo(MediaPlayer mp, int what, int extra) {
return false;
}
});
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private void sendPlayerStatus(String status) {
Intent intent = new Intent();
intent.setAction(SERVICE_TO_ACTIVITY);
intent.putExtra(PLAYER_STATUS_KEY, status);
sendBroadcast(intent);
}
<!-- Internet Permissions -->
<uses-permission android:name="android.permission.INTERNET" />
<!-- Network State Permissions -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Service_Player"
android:label="@string/title_activity_service__player" >
</activity>
<service android:name=".MediaPlayerService"></service>
</application>
共有1个答案
仲孙默
我会建议您使用服务，如果您正在创建应用程序与媒体播放器流或普通媒体播放器。它将很容易处理球员背景&集中。
要在服务中使用媒体播放器，您可以根据您的要求将其与BroadCastReceiver或绑定服务一起使用。如果媒体播放器相关的服务将是很好的，如果您在下面的代码中保持它在前台运行，我没有处理过，请检查给定的链接。
在这里的示例代码中，我使用广播接收器为MediaPlayer发送从活动到服务的命令（如播放、暂停、更改轨道等），反之亦然。
现在，要获取从Activity onItemClickListner发送的url，需要从Intent获取。
String url = getIntent().getStringExtra("url");
播放屏幕
public class PlayerScreen extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.player);
startService(new Intent(this, MediaPlayerService.class));
findViewById(R.id.btnChangeTrack).setOnClickListener(clickListener);
findViewById(R.id.btnStartMediaPlayer).setOnClickListener(clickListener);
findViewById(R.id.btnStopMediaPlayer).setOnClickListener(clickListener);
ToggleButton toggleButton = (ToggleButton) findViewById(R.id.togglePauseResume);
toggleButton.setOnCheckedChangeListener(checkedChangeListener);
/*
* To get url which is passing from the previous activity listitem click.
* If url which is pass from listitem click is not empty it will start player
* */
String url = getIntent().getStringExtra("url");
if (!TextUtils.isEmpty(url))
startMediaPlayer(url);
}
private ToggleButton.OnCheckedChangeListener checkedChangeListener = new ToggleButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (!isChecked) {
Intent intent = new Intent();
intent.setAction(MediaPlayerService.BROADCAST_TO_SERVICE);
intent.putExtra(MediaPlayerService.PLAYER_FUNCTION_TYPE, MediaPlayerService.PAUSE_MEDIA_PLAYER);
sendBroadcast(intent);
} else {
Intent intent = new Intent();
intent.setAction(MediaPlayerService.BROADCAST_TO_SERVICE);
intent.putExtra(MediaPlayerService.PLAYER_FUNCTION_TYPE, MediaPlayerService.RESUME_MEDIA_PLAYER);
sendBroadcast(intent);
}
}
};
private View.OnClickListener clickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent;
switch (v.getId()) {
case R.id.btnChangeTrack:
intent = new Intent();
intent.setAction(MediaPlayerService.BROADCAST_TO_SERVICE);
intent.putExtra(MediaPlayerService.PLAYER_FUNCTION_TYPE, MediaPlayerService.CHANGE_PLAYER_TRACK);
intent.putExtra(MediaPlayerService.PLAYER_TRACK_URL, "http://69.64.41.64:9938");
sendBroadcast(intent);
break;
case R.id.btnStartMediaPlayer:
startMediaPlayer("http://108.163.197.114:8071/listen.pls");
break;
case R.id.btnStopMediaPlayer:
intent = new Intent();
intent.setAction(MediaPlayerService.BROADCAST_TO_SERVICE);
intent.putExtra(MediaPlayerService.PLAYER_FUNCTION_TYPE, MediaPlayerService.STOP_MEDIA_PLAYER);
sendBroadcast(intent);
break;
}
}
};
@Override
protected void onResume() {
super.onResume();
registerReceiver(receiverFromservice, new IntentFilter(MediaPlayerService.SERVICE_TO_ACTIVITY));
}
private String currentPlayerStatus = "N/A";
private BroadcastReceiver receiverFromservice = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (MediaPlayerService.SERVICE_TO_ACTIVITY.equalsIgnoreCase(action)) {
/*
* To get current status of player
* */
currentPlayerStatus = intent.getStringExtra(MediaPlayerService.PLAYER_STATUS_KEY);
Log.e("Player Mode", "" + currentPlayerStatus);
}
}
};
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(receiverFromservice);
}
/**
* TO start media player.It will send broadcast to Service & from service player will start
*
* @param url
*/
public void startMediaPlayer(String url) {
Intent intent = new Intent();
intent.setAction(MediaPlayerService.BROADCAST_TO_SERVICE);
intent.putExtra(MediaPlayerService.PLAYER_FUNCTION_TYPE, MediaPlayerService.PLAY_MEDIA_PLAYER);
intent.putExtra(MediaPlayerService.PLAYER_TRACK_URL, url);
sendBroadcast(intent);
}
}
媒体播放服务
public class MediaPlayerService extends Service {
public static final String BROADCAST_TO_SERVICE = "com.mediaplayer.playerfunction";
public static final String SERVICE_TO_ACTIVITY = "com.mediaplayer.currentPlayerStatus";
public static final String PLAYER_FUNCTION_TYPE = "playerfunction";
public static final String PLAYER_TRACK_URL = "trackURL";
public static final int PLAY_MEDIA_PLAYER = 1;
public static final int PAUSE_MEDIA_PLAYER = 2;
public static final int RESUME_MEDIA_PLAYER = 3;
public static final int STOP_MEDIA_PLAYER = 4;
public static final int CHANGE_PLAYER_TRACK = 5;
public static final String PLAYER_STATUS_KEY = "PlayerCurrentStatus";
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
IntentFilter intentFilter = new IntentFilter(BROADCAST_TO_SERVICE);
registerReceiver(playerReceiver, intentFilter);
if (mPlayer != null && mPlayer.isPlaying()) {
sendPlayerStatus("playing");
}
return START_STICKY;
}
private BroadcastReceiver playerReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BROADCAST_TO_SERVICE.equalsIgnoreCase(action)) {
String trackURL = intent.hasExtra(PLAYER_TRACK_URL) ? intent.getStringExtra(PLAYER_TRACK_URL) : "";
int function = intent.getIntExtra(PLAYER_FUNCTION_TYPE, 0);
switch (function) {
case CHANGE_PLAYER_TRACK:
changeTrack(trackURL);
break;
case STOP_MEDIA_PLAYER:
stopPlayer();
break;
case PLAY_MEDIA_PLAYER:
startMediaPlayer(trackURL);
break;
case PAUSE_MEDIA_PLAYER:
pausePlayer();
break;
case RESUME_MEDIA_PLAYER:
resumePlayer();
break;
}
}
}
};
private MediaPlayer mPlayer;
private void pausePlayer() {
if (mPlayer != null && mPlayer.isPlaying()) {
mPlayer.pause();
sendPlayerStatus("pause");
}
}
private void resumePlayer() {
if (mPlayer != null && !mPlayer.isPlaying()) {
mPlayer.start();
sendPlayerStatus("playing");
}
}
private void changeTrack(String url) {
stopPlayer();
startMediaPlayer(url);
}
private void stopPlayer() {
if (mPlayer != null) {
mPlayer.stop();
mPlayer.release();
mPlayer = null;
sendPlayerStatus("stopped");
}
}
public void startMediaPlayer(String url) {
if (TextUtils.isEmpty(url))
return;
if (mPlayer == null)
mPlayer = new MediaPlayer();
try {
mPlayer.setDataSource(url);
mPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
if (extra == MediaPlayer.MEDIA_ERROR_SERVER_DIED
|| extra == MediaPlayer.MEDIA_ERROR_MALFORMED) {
sendPlayerStatus("erroronplaying");
} else if (extra == MediaPlayer.MEDIA_ERROR_IO) {
sendPlayerStatus("erroronplaying");
return false;
}
return false;
}
});
mPlayer.setOnBufferingUpdateListener(new MediaPlayer.OnBufferingUpdateListener() {
public void onBufferingUpdate(MediaPlayer mp, int percent) {
Log.e("onBufferingUpdate", "" + percent);
}
});
mPlayer.prepareAsync();
mPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
mPlayer.start();
sendPlayerStatus("playing");
}
});
mPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
Log.e("onCompletion", "Yes");
sendPlayerStatus("completed");
}
});
mPlayer.setOnInfoListener(new MediaPlayer.OnInfoListener() {
@Override
public boolean onInfo(MediaPlayer mp, int what, int extra) {
return false;
}
});
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private void sendPlayerStatus(String status) {
Intent intent = new Intent();
intent.setAction(SERVICE_TO_ACTIVITY);
intent.putExtra(PLAYER_STATUS_KEY, status);
sendBroadcast(intent);
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/ab_tool"
android:text="Home" />
<Button
android:id="@+id/btnStartMediaPlayer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/section_label"
android:text="Start Player" />
<ToggleButton
android:id="@+id/togglePauseResume"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/btnStartMediaPlayer"
android:checked="true"
android:textOff="Resume"
android:textOn="Pause" />
<Button
android:id="@+id/btnChangeTrack"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/togglePauseResume"
android:text="Chanage Track" />
<Button
android:id="@+id/btnStopMediaPlayer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/btnChangeTrack"
android:text="STOP" />
</RelativeLayout>
<activity android:name=".PlayerScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".MediaPlayerService"></service>
若要从流式url标头数据中获取数据，您可以检查以下答案
为了测试目的，我在这里使用了两个URL
更新PlayerActivity
public class PlayerScreen extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.player);
startService(new Intent(this, MediaPlayerService.class));
/*
* To get url which is passing from the previous activity listitem click.
* If url which is pass from listitem click is not empty it will start player
* */
String url = getIntent().getStringExtra("url");
if (!TextUtils.isEmpty(url))
startMediaPlayer(url);
}
@Override
protected void onResume() {
super.onResume();
registerReceiver(receiverFromservice, new IntentFilter(MediaPlayerService.SERVICE_TO_ACTIVITY));
}
private String currentPlayerStatus = "N/A";
private BroadcastReceiver receiverFromservice = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (MediaPlayerService.SERVICE_TO_ACTIVITY.equalsIgnoreCase(action)) {
/*
* To get current status of player
* */
currentPlayerStatus = intent.getStringExtra(MediaPlayerService.PLAYER_STATUS_KEY);
Log.e("Player Mode", "" + currentPlayerStatus);
}
}
};
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(receiverFromservice);
}
/**
* TO start media player.It will send broadcast to Service & from service player will start
*
* @param url
*/
public void startMediaPlayer(String url) {
Intent intent = new Intent();
intent.setAction(MediaPlayerService.BROADCAST_TO_SERVICE);
intent.putExtra(MediaPlayerService.PLAYER_FUNCTION_TYPE, MediaPlayerService.PLAY_MEDIA_PLAYER);
intent.putExtra(MediaPlayerService.PLAYER_TRACK_URL, url);
sendBroadcast(intent);
}
}
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