Question

我对Java很新，并且一直在开发一个应用程序来从Internet传输实时音频。除了暂停按钮，我已经完成了所有工作。它现在所做的只是在短时间内对音频进行加扰。我猜这与调用mediaPlayer.pause()的地方有关，但我可能错了。感谢您的时间和回应。

package com.example.jacob.wutk;

import android.media.AudioManager;
import android.media.MediaPlayer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;

import java.io.IOException;

public class radio extends AppCompatActivity {

    /** Called when the user touches the button */

    public void playPauseMusic (View playPause) throws IOException {
        String url = "http://streamer.cci.utk.edu:8000/wutk-vorbis"; // your URL here
        final MediaPlayer mediaPlayer = new MediaPlayer();

        ImageButton imb = (ImageButton) findViewById(R.id.playPause);

        if (mediaPlayer.isPlaying()) {
            imb.setImageResource(R.drawable.play1);
            mediaPlayer.pause();
            return;
        } else {
            imb.setImageResource(R.drawable.pause1);
        }

        mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            public void onPrepared(MediaPlayer mediaPlayer){
                mediaPlayer.start();
            }
        });

        mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
        mediaPlayer.setDataSource(url);
        mediaPlayer.prepareAsync();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_radio);
    }
}

Answer 1

尝试使用此代码：

com.example.jacob.wutk;

        import android.media.AudioManager;
        import android.media.MediaPlayer;
        import android.support.v7.app.AppCompatActivity;
        import android.os.Bundle;
        import android.view.View;
        import android.widget.ImageButton;

        import java.io.IOException;

public class radio extends AppCompatActivity {

    private MediaPlayer mediaPlayer;
    private boolean isMediaPlayerStarted = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_radio);
        setMediaPlayer();
    }

    public void setMediaPlayer() {
        try {
            mediPlayer = new MediaPlayer();
            String url = "http://streamer.cci.utk.edu:8000/wutk-vorbis"; 

            ImageButton imb = (ImageButton) findViewById(R.id.playPause);

            imb.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (!isMediaPlayerStarte) {
                        mediaPlayer.prepareAsync();
                        isMediaPlayerStarted = true;
                    } else {
                        if (mediaPlayer.isPlaying()) {
                            imb.setImageResource(R.drawable.play1);
                            mediaPlayer.pause();
                        } else {
                            imb.setImageResource(R.drawable.pause1);
                            mediaPlayer.start();
                        }
                    }
                }
            });

            mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                public void onPrepared(MediaPlayer mediaPlayer) {
                    mediaPlayer.start();
                }
            });

            mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mediaPlayer.setDataSource(url);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

暂停按钮仅在短时间内扰乱音频

1 个答案: