适用于 Android 的在线广播流媒体应用 [英] Online radio streaming app for Android

问题描述

我正在构建一个 Android 应用程序，该应用程序将播放来自拉丁国家的多个广播电台，我知道大约有 10 个电台可以在 android 系统中播放，我从他们那里获得了 URL，实际上使用本教程使它们工作(链接已删除，因为它已死)但我遇到的问题是它播放了几秒钟然后停止它继续加载但没有重新启动流媒体，我的问题:

I'm building an Android app that will stream several radio stations from a Latin Country, there is like 10 stations that I know can be played in android, I got the URL's from them and actually made them work using this tutorial (link removed, because it is dead) but the problem I have is that it plays for several seconds and then stops it keeps loading but does not restart the streaming, my questions:

• 如果有人使用过本教程，可以向我解释如何让它不间断地持续播放.
• 有没有更简单的方法来传输广播音频?这个教程看起来有点老了，有没有更新的教程或更新的代码示例可以学习或使用?
• 有人能用正确的方式发给我吗?

推荐答案

所以我找到了这个示例并且它对我有用，如果你有同样的问题，这里是:

So I found this sample and it works for me, here it is if you have the same issue:

在 myMain.java 中

in myMain.java

import android.app.Activity;
import android.os.Bundle;

import java.io.IOException;

import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;

public class myMain extends Activity implements OnClickListener {

    private ProgressBar playSeekBar;

    private Button buttonPlay;

    private Button buttonStopPlay;

    private MediaPlayer player;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        initializeUIElements();

        initializeMediaPlayer();
    }

    private void initializeUIElements() {

        playSeekBar = (ProgressBar) findViewById(R.id.progressBar1);
        playSeekBar.setMax(100);
        playSeekBar.setVisibility(View.INVISIBLE);

        buttonPlay = (Button) findViewById(R.id.buttonPlay);
        buttonPlay.setOnClickListener(this);

        buttonStopPlay = (Button) findViewById(R.id.buttonStopPlay);
        buttonStopPlay.setEnabled(false);
        buttonStopPlay.setOnClickListener(this);

    }

    public void onClick(View v) {
        if (v == buttonPlay) {
            startPlaying();
        } else if (v == buttonStopPlay) {
            stopPlaying();
        }
    }

    private void startPlaying() {
        buttonStopPlay.setEnabled(true);
        buttonPlay.setEnabled(false);

        playSeekBar.setVisibility(View.VISIBLE);

        player.prepareAsync();

        player.setOnPreparedListener(new OnPreparedListener() {

            public void onPrepared(MediaPlayer mp) {
                player.start();
            }
        });

    }

    private void stopPlaying() {
        if (player.isPlaying()) {
            player.stop();
            player.release();
            initializeMediaPlayer();
        }

        buttonPlay.setEnabled(true);
        buttonStopPlay.setEnabled(false);
        playSeekBar.setVisibility(View.INVISIBLE);
    }

    private void initializeMediaPlayer() {
        player = new MediaPlayer();
        try {
            player.setDataSource("http://usa8-vn.mixstream.net:8138");
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        player.setOnBufferingUpdateListener(new OnBufferingUpdateListener() {

            public void onBufferingUpdate(MediaPlayer mp, int percent) {
                playSeekBar.setSecondaryProgress(percent);
                Log.i("Buffering", "" + percent);
            }
        });
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (player.isPlaying()) {
            player.stop();
        }
    }
}

在 XML (main.xml) 代码中:

in the XML (main.xml) code:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:text="Source: (Radio La Chevere)"
        android:layout_marginTop="10dip" android:gravity="center" />
<ProgressBar android:id="@+id/progressBar1"
        android:indeterminateOnly="false" android:progressDrawable="@android:drawable/progress_horizontal"
        android:indeterminateDrawable="@android:drawable/progress_indeterminate_horizontal"
        android:minHeight="20dip" android:maxHeight="20dip"
        android:layout_width="fill_parent" android:layout_height="wrap_content"
        android:layout_marginLeft="20dip" android:layout_marginRight="20dip"
        android:layout_marginTop="10dip"></ProgressBar>
<LinearLayout android:id="@+id/linearLayout1"
        android:layout_height="wrap_content" android:layout_width="match_parent"
        android:layout_marginTop="20dip" android:gravity="center">
        <Button android:text="Play" android:id="@+id/buttonPlay"
                android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
        <Button android:text="Stop" android:id="@+id/buttonStopPlay"
                android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
</LinearLayout>
</LinearLayout>

和安卓清单:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="package.your.RadioStream"
  android:versionCode="1"
  android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <activity android:name=".myMain"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

</application>

这篇关于适用于 Android 的在线广播流媒体应用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！