如何在 OnTouchListner Android 上的两个不同按钮上播放两种不同的声音？

Question

我正在制作一个安卓应用程序。我添加了两个按钮并为它们分配了两种不同的声音。现在 Button1 应该播放 sound.mp3 和 Button2 应该在按下时播放 asound.mp3 并且声音应该在按下时停止。问题是两个按钮都只播放一种声音。package com.example.sound1;import android.app.Activity;import android.media.MediaPlayer;import android.os.Bundle;import android.view.MotionEvent;import android.view.View;import android.view.View.OnTouchListener;import android.widget.ImageButton;public class MainActivity extends Activity implements OnTouchListener {private MediaPlayer mp;public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ImageButton btn = (ImageButton) this.findViewById(R.id.button1);btn.setOnTouchListener(this);mp = MediaPlayer.create(this, R.raw.sound);ImageButton btn2 = (ImageButton) this.findViewById(R.id.button2);btn2.setOnTouchListener(this);mp = MediaPlayer.create(this, R.raw.asound);}@Overridepublic boolean onTouch(View v, MotionEvent event) {switch (event.getAction()) {case MotionEvent.ACTION_DOWN: {mp.setLooping(true);mp.start();}break;case MotionEvent.ACTION_UP: {mp.pause();}break;}return true;}}

Answer 1

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ImageButton btn = (ImageButton) this.findViewById(R.id.button1);

btn.setOnTouchListener(this);

mp = MediaPlayer.create(this, R.raw.sound);

ImageButton btn2 = (ImageButton) this.findViewById(R.id.button2);

btn2.setOnTouchListener(this);

mp = MediaPlayer.create(this, R.raw.asound); // this is your problem. you set the MediaPlayer fixed to this sound

}

您应该根据单击的 Button 设置声音。我以前没有使用过 android，所以我不能 100% 确定代码，但你需要这样的东西：

package com.example.sound1;

import android.app.Activity;

import android.media.MediaPlayer;

import android.os.Bundle;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnTouchListener;

import android.widget.ImageButton;

public class MainActivity extends Activity implements OnTouchListener {

private MediaPlayer mp;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ImageButton btn = (ImageButton) this.findViewById(R.id.button1);

btn.setOnTouchListener(this);

// remove this -> mp = MediaPlayer.create(this, R.raw.sound);

ImageButton btn2 = (ImageButton) this.findViewById(R.id.button2);

btn2.setOnTouchListener(this);

// remove this -> mp = MediaPlayer.create(this, R.raw.asound);

}

@Override

public boolean onTouch(View v, MotionEvent event) {

switch (event.getAction()) {

case MotionEvent.ACTION_DOWN: {

if ( event.getActionSource() == R.id.button1) {

  mp = MediaPlayer.create(this, R.raw.sound);

} else if ( event.getActionSource() == R.id.button2 ) {

  mp = MediaPlayer.create(this, R.raw.asound);

} else { mp = null; }

if ( mp != null ) {

mp.setLooping(true);

mp.start();

}

}

break;

case MotionEvent.ACTION_UP: {

if (mp != null ) mp.pause();

}

break;

}

return true;

}

}

Answer 2

1. 您必须创建两个媒体播放器

2. 您必须指定正在调整的按钮

使用此代码

private MediaPlayer mp1;

private MediaPlayer mp2;

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_main);

    ImageButton btn = (ImageButton) this.findViewById(R.id.button1);

    btn.setOnTouchListener(this);

    mp1 = MediaPlayer.create(this, R.raw.sound);

    ImageButton btn2 = (ImageButton) this.findViewById(R.id.button2);

    btn2.setOnTouchListener(this);

    mp2 = MediaPlayer.create(this, R.raw.asound);

}

@Override

public boolean onTouch(View v, MotionEvent event) {

    switch (event.getAction()) {

    case MotionEvent.ACTION_DOWN: {

        if(v.getId() == R.id.button1){

             mp1.setLooping(true);

             mp1.start();

        }else{

             mp2.setLooping(true);

             mp2.start();

        }

    }

    break;

    case MotionEvent.ACTION_UP: {

        if(v.getId() == R.id.button1){

             mp1.pause();

        }else{

             mp2.pause();

        }

    }

    break;

    }

    return true;

}

对于 3 个或更多按钮，请使用此

private MediaPlayer mp;

private int[] sounds = {R.raw.sound1,R.raw.sound2,R.raw.sound3};

private int[] btns = {R.id.button1,R.id.button2,R.id.button3};

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_main);

    //others codes

    for (int btn : btns) {

        (ImageButton) this.findViewById(btn).setOnTouchListener(this);

    }

}

@Override

public boolean onTouch(View v, MotionEvent event) {

    switch (event.getAction()) {

        case MotionEvent.ACTION_DOWN: {

            for (int i = 0 ; i<btns.length ; i++){

                if (v.getId() == btns[i]){

                    mp = MediaPlayer.create(this, sounds[i]);

                    break;

                }

            }

            mp.start();

        }

        break;

        case MotionEvent.ACTION_UP: {

            for (int btn : btns) {

                if (v.getId() == btn) {

                    mp.pause();

                    break;

                }

            }

        }

        break;

    }

    return true;

}

Answer 3

创建两个 MediaPlayer 实例

对于第一个声音

MediaPlayer mpFirst = MediaPlayer.create(this, R.raw.sound);

对于第二声

MediaPlayer mpSecond = MediaPlayer.create(this, R.raw.asound);