我正在尝试使用片段和后台服务来实现直播无线电，但是每次我点击导航抽屉上的单选按钮我都无法到达播放器，因为它生成了一个，我只能控制第二个。这是我的片段类。
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_radio, container, false);
init(v);
ApiManager.getInstance().getRadioBroadcast(new ApiResponseLive.GetLiveBroadcastListener() {
@Override
public void onSuccess(StreamModel days) {
turnRadioOn(ApiManager.streamModel);
}
@Override
public void onFailure(String responseString) {
}
});
registerHandler(v);
return v;
}
private void turnRadioOn(StreamModel streamModel) {
HashMap<Integer, ArrayList<GenericStreamItem>> broadcastDays = new HashMap<>();
streamModel.setStreamAllArrays(broadcastDays);
BroadcastPagerAdapter radioPagerAdapter = new BroadcastPagerAdapter(getChildFragmentManager(), getContext(), TAG);
radioPager.setAdapter(radioPagerAdapter);
}
private void init(View v) {
radioPager = (ViewPager) v.findViewById(R.id.broadcastRadioPager);
radioTabLayout = (TabLayout) v.findViewById(R.id.tabsDays);
radioTabLayout.setupWithViewPager(radioPager);
radioPlay = (ToggleButton) v.findViewById(R.id.playButton);
radioScrollView = (ScrollView) v.findViewById(R.id.radioScroll);
}
private void start(String url) {
try {
mp = new MediaPlayer();
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
mp.setOnPreparedListener(this);
mp.setDataSource(url);
mp.prepareAsync();
mp.setOnCompletionListener(this);
Log.e("Radio::", "Working");
} catch (Exception e) {
Log.e("StreamAudioDemo", e.getMessage());
e.printStackTrace();
}
}
private void stop() {
try {
mp.pause();
mp.stop();
mp.reset();
mp.release();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void stopRadio() {
try {
Log.e("stopRadio::", "Pause");
mp.pause();
mp.stop();
mp.reset();
mp.release();
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void onPrepared(MediaPlayer mp) {
mp.start();
}
@Override
public void onCompletion(MediaPlayer mp) {
}
private void registerHandler(View v) {
radioPlay.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
Log.e("Toggle::", "Enabled");
radioService = new RadioService();
radioService.initMediaPlayer(ApiManager.RADIO_URL);
} else {
Log.e("Toggle::", "Disabled");
stop();
stopRadio();
radioService.onDestroy();
}
}
});
v.findViewById(R.id.radioBroadcast).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
radioScrollView.fullScroll(ScrollView.FOCUS_DOWN);
}
});
}
public class RadioService extends Service implements MediaPlayer.OnErrorListener {
public void initMediaPlayer(String url) {
// ...initialize the MediaPlayer here...
ApiManager.getInstance().getRadioURL(new ApiResponseLive.GetTVStreamUrlListener() {
@Override
public void onSuccess(String tvUrl) {
start(ApiManager.RADIO_URL);
mp.setOnErrorListener(RadioService.this);
}
@Override
public void onFailure(String responseString) {
}
});
}
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
// ... react appropriately ...
// The MediaPlayer has moved to the Error state, must be reset!
mp.reset();
return false;
}
@Override
public void onDestroy() {
if (mp != null) mp.release();
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
}
}
以下是我调用片段的方式：
RadioFragment radioFragment = new RadioFragment();
fragment = fm.findFragmentByTag("radio");
radioDrawer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (fragment == null) {
fm.beginTransaction()
.remove(fm.findFragmentById(R.id.activity_content))
.add(R.id.activity_content, radioFragment,
"radio").addToBackStack("main").commit();
} else {
fm.beginTransaction().replace(R.id.activity_content,
radioFragment, "radio");
}
fullView.closeDrawers();
}
});