Android Soundpool - 触摸事件

Android Soundpool - Touch events

我正在制作一个带有八个图像按钮的鼓垫应用程序,可以在按下按钮时播放声音。我一直在试图弄清楚如何让按钮的按下更具响应性,因为问题是 Soundpool 仅在释放按钮时才播放文件。

我发现有一种方法可以使用 onTouchEvent 使按钮对触摸做出反应,但我不知道如何在我的代码中实现它。我试过对声音同时使用 .ogg 和 .wav 文件类型,但这不是问题所在。我还计划创建在按下按键时循环播放声音文件的按钮,但我的主要问题是如何让所有按钮响应触摸,而不是释放。代码:

package com.example.user.soundboard;
import android.os.Bundle;
import android.view.View;
import android.view.MotionEvent;
import android.media.AudioManager;
import android.media.SoundPool;
import android.support.v7.app.AppCompatActivity;


public class MainActivity extends AppCompatActivity {


SoundPool mySound, mySound2, mySound3, mySound4, mySound5, mySound6, mySound7, mySound8;

int hihatId, kickId, snareId, clapId, snare2Id, hihat2Id, kick2Id, openHatId;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mySound = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
    mySound2 = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
    mySound3 = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
    mySound4 = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
    mySound5 = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
    mySound6 = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
    mySound7 = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
    mySound8 = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);

    hihatId = mySound.load(this, R.raw.ogghat30, 1);
    hihat2Id = mySound.load(this, R.raw.ogghihat14, 1);
    kickId = mySound.load(this, R.raw.oggkick, 1);
    kick2Id = mySound.load(this, R.raw.oggkick2, 1);
    snareId = mySound.load(this, R.raw.oggsnare8, 1);
    snare2Id = mySound.load(this, R.raw.oggsnare8, 1);
    clapId = mySound.load(this, R.raw.oggclap5, 1);
    openHatId = mySound.load(this, R.raw.ogghat24, 1);

}

public void playHihat(View view) {
    mySound.play(hihatId, 1, 1, 1, 0, 1);
}

public void playHihat2(View view) {
    mySound.play(hihat2Id, 1, 1, 1, 0, 1);
}

public void playOpenHat(View view) {
    mySound.play(openHatId, 1, 1, 1, 0, 1);
}

public void playKick(View view) {
    mySound.play(kickId, 1, 1, 1, 0, 1);
}

public void playKick2(View view) {
    mySound.play(kick2Id, 1, 1, 1, 0, 1);
}

public void playSnare(View view) {
    mySound.play(snareId, 1, 1, 1, 0, 1);
}

public void playSnare2(View view) {
    mySound.play(snare2Id, 1, 1, 1, 0, 1);
}

public void playClap(View view) {
    mySound.play(clapId, 1, 1, 1, 0, 1);
}

对于 ImageButtons,我目前在布局中使用 onClick 方法。

感谢您的帮助!

而不是 OnClickListener 你必须使用 OnTouchListener.

yourButton.setOnTouchListener(new OnTouchListener() {
   @Override
    public boolean onTouch(View v, MotionEvent event) {
       if(event.getAction() == MotionEvent.ACTION_UP){
           // Release sound on touch up
           return true;
       } else if(event.getAction() == MotionEvent.ACTION_DOWN){
           // Play sound
           return true;
       }
        return false;
    }
});

您可以在您的视图上设置触摸事件监听器,这样您就可以播放响应触摸事件的声音。

这里有一个例子:

yourButtonView.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View view, MotionEvent motionEvent) {
            switch (motionEvent.getAction()){
                case MotionEvent.ACTION_DOWN:
                    //Fired when you touch the button
                    break;

                case MotionEvent.ACTION_MOVE:
                    //Fired once you are touching button and you move your finger without release the button
                    break;

                case MotionEvent.ACTION_UP:
                    //Fired when you stop touching the button
                    break;
            }
            return true;
        }
    });