Question

我对此感到困惑，我引用了很多其他帖子。我并没有要求任何人完成我的代码，只是指出我出错的地方并引导我走向正确的方向。我想在单击图像按钮时播放音频文件，但在单击另一个图像按钮时停止播放。我遇到的问题是，如果我按下所有图像按钮，它们将同时播放音频。

package com.application.cats.catsshapecolorapp;

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


public class ColorPage extends AppCompatActivity {


Context context = this;
MediaPlayer mpPurple,mpBlue,mpRed,mpGreen,mpYellow,mpPink;

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

    mpPurple = MediaPlayer.create(context, R.raw.purpleaudiotest);
    ImageButton purpleB = (ImageButton) findViewById(R.id.purpleButton);
    purpleB.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            try {
                if (mpPurple.isPlaying()) {
                    mpPurple.stop();
                    mpPurple.release();
                    mpPurple = MediaPlayer.create(context, R.raw.purpleaudiotest);
                } mpPurple.start();
            } catch(Exception e) { e.printStackTrace(); }
        }
    });

    mpBlue = MediaPlayer.create(context, R.raw.blueaudiotest);
    ImageButton blueB = (ImageButton) findViewById(R.id.blueButton);
    blueB.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            try {
                if (mpBlue.isPlaying()) {
                    mpBlue.stop();
                    mpBlue.release();
                    mpBlue = MediaPlayer.create(context, R.raw.blueaudiotest);
                } mpBlue.start();
            } catch(Exception e) { e.printStackTrace(); }
        }
    });

    mpRed = MediaPlayer.create(context, R.raw.redaudiotest);
    ImageButton redB = (ImageButton) findViewById(R.id.redButton);
    redB.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            try {
                if (mpRed.isPlaying()) {
                    mpRed.stop();
                    mpRed.release();
                    mpRed = MediaPlayer.create(context, R.raw.redaudiotest);
                } mpRed.start();
            } catch(Exception e) { e.printStackTrace(); }
        }
    });

    mpGreen = MediaPlayer.create(context, R.raw.greenaudiotest);
    ImageButton greenB = (ImageButton) findViewById(R.id.greenButton);
    greenB.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            try {
                if (mpGreen.isPlaying()) {
                    mpGreen.stop();
                    mpGreen.release();
                    mpGreen = MediaPlayer.create(context, R.raw.greenaudiotest);
                } mpGreen.start();
            } catch(Exception e) { e.printStackTrace(); }
        }
    });

    mpYellow = MediaPlayer.create(context, R.raw.yellowaudiotest);
    ImageButton yellowB = (ImageButton) findViewById(R.id.yellowButton);
    yellowB.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            try {
                if (mpYellow.isPlaying()) {
                    mpYellow.stop();
                    mpYellow.release();
                    mpYellow = MediaPlayer.create(context, R.raw.yellowaudiotest);
                } mpYellow.start();
            } catch(Exception e) { e.printStackTrace(); }
        }
    });

    mpPink = MediaPlayer.create(context, R.raw.pinkaudiotest);
    ImageButton pinkB = (ImageButton) findViewById(R.id.pinkButton);
    pinkB.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            try {
                if (mpPink.isPlaying()) {
                    mpPink.stop();
                    mpPink.release();
                    mpPink = MediaPlayer.create(context, R.raw.pinkaudiotest);
                } mpPink.start();
            } catch(Exception e) { e.printStackTrace(); }
        }
    });

}

更新：现在的问题是，无论我点击什么图像按钮，pinkaudiotest始终是第一个播放的音频文件。我必须再次点击才能听到正确的音频文件。

Answer 1

您每次点击都会创建一个新的MediaPlayer实例。只需使用一个。

  if (media.isPlaying()) {
                    media.stop();
                    media.release();
                    media= MediaPlayer.create(context, R.raw.purpleaudiotest);
                } media.start();

Answer 2

试试这个，

MediaPlayer mediaPlayer = new MediaPlayer();  
     try {
     mediaPlayer.setDataSource(R.raw.name);
     mediaPlayer.prepare();
     } catch (IOException e) {
             e.printStackTrace();
     }
     mediaPlayer.start();

android一次播放一个声音

2 个答案: