如何使用URL在Android上传输音频？ [英] How do I stream audio on android using URL?

问题描述

我已创建应用程序，我可以使用资源播放音乐，但我想使用互联网流式传输音乐，使用网址，请建议我...



我尝试过：

I have Created app where I can Play music using Resource, but I want to stream the music using Internet, using URL, Please suggest me...

What I have tried:

package com.example.admin.playcapturedaudio;

import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;

import android.widget.Button;
import android.widget.ImageView;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import java.util.concurrent.TimeUnit;


public class MainActivity extends Activity {
    private Button b1,b2,b3,b4;
    private ImageView iv;
    private MediaPlayer mediaPlayer;

    private double startTime = 0;
    private double finalTime = 0;

    private Handler myHandler = new Handler();;
    private int forwardTime = 5000;
    private int backwardTime = 5000;
    private SeekBar seekbar;
    private TextView tx1,tx2,tx3;

    public static int oneTimeOnly = 0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        b1 = (Button) findViewById(R.id.button);
        b2 = (Button) findViewById(R.id.button2);
        b3 = (Button)findViewById(R.id.button3);
        b4 = (Button)findViewById(R.id.button4);
        iv = (ImageView)findViewById(R.id.imageView);

        tx1 = (TextView)findViewById(R.id.textView2);
        tx2 = (TextView)findViewById(R.id.textView3);
        tx3 = (TextView)findViewById(R.id.textView4);
        tx3.setText("Song.mp3");

        mediaPlayer = MediaPlayer.create(this, R.raw.song);
        seekbar = (SeekBar)findViewById(R.id.seekBar);
        seekbar.setClickable(false);
        b2.setEnabled(false);

        b3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "Playing sound",Toast.LENGTH_SHORT).show();
                        mediaPlayer.start();

                finalTime = mediaPlayer.getDuration();
                startTime = mediaPlayer.getCurrentPosition();

                if (oneTimeOnly == 0) {
                    seekbar.setMax((int) finalTime);
                    oneTimeOnly = 1;
                }

                tx2.setText(String.format("%d min, %d sec",
                        TimeUnit.MILLISECONDS.toMinutes((long) finalTime),
                        TimeUnit.MILLISECONDS.toSeconds((long) finalTime) -
                                TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes((long)
                                        finalTime)))
                );

                tx1.setText(String.format("%d min, %d sec",
                        TimeUnit.MILLISECONDS.toMinutes((long) startTime),
                        TimeUnit.MILLISECONDS.toSeconds((long) startTime) -
                                TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes((long)
                                        startTime)))
                );

                seekbar.setProgress((int)startTime);
                myHandler.postDelayed(UpdateSongTime,100);
                b2.setEnabled(true);
                b3.setEnabled(false);
            }
        });

        b2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "Pausing sound",Toast.LENGTH_SHORT).show();
                        mediaPlayer.pause();
                b2.setEnabled(false);
                b3.setEnabled(true);
            }
        });

        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int temp = (int)startTime;

                if((temp+forwardTime)<=finalTime){
                    startTime = startTime + forwardTime;
                    mediaPlayer.seekTo((int) startTime);
                    Toast.makeText(getApplicationContext(),"You have Jumped forward 5 seconds",Toast.LENGTH_SHORT).show();
                }else{
                    Toast.makeText(getApplicationContext(),"Cannot jump forward 5 seconds",Toast.LENGTH_SHORT).show();
                }
            }
        });

        b4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int temp = (int)startTime;

                if((temp-backwardTime)>0){
                    startTime = startTime - backwardTime;
                    mediaPlayer.seekTo((int) startTime);
                    Toast.makeText(getApplicationContext(),"You have Jumped backward 5 seconds",Toast.LENGTH_SHORT).show();
                }else{
                    Toast.makeText(getApplicationContext(),"Cannot jump backward 5 seconds",Toast.LENGTH_SHORT).show();
                }
            }
        });
    }

    private Runnable UpdateSongTime = new Runnable() {
        public void run() {
            startTime = mediaPlayer.getCurrentPosition();
            tx1.setText(String.format("%d min, %d sec",
                    TimeUnit.MILLISECONDS.toMinutes((long) startTime),
                    TimeUnit.MILLISECONDS.toSeconds((long) startTime) -
                            TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.
                                    toMinutes((long) startTime)))
            );
            seekbar.setProgress((int)startTime);
            myHandler.postDelayed(this, 100);
        }
    };
}

推荐答案

为什么不在实际的Android论坛中提出这样的问题呢？



无论如何，请查阅 MediaPlayer docs here 显示了从远程URL流式传输的示例：

Why not ask such questions in the actual Android forum?

In any case, consulting the MediaPlayer docs here shows an example of streaming from a remote URL:

String url = "http://........"; // your URL here
MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setDataSource(url);
mediaPlayer.prepare(); // might take long! (for buffering, etc)
mediaPlayer.start();

这篇关于如何使用URL在Android上传输音频？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！