电子钢琴源码

package com.javacc.android.piano; import android.app.Activity; import android.os.Bundle; import android.widget.ImageButton; import android.widget.Toast; import android.widget.Button; import android.view.View; import android.view.MotionEvent; import android.media.MediaPlayer; import java.io.IOException; /** * @author: ZhangFL */ public class Piano extends Activity { private ImageButton imageButton_white1; private ImageButton imageButton_white2; private ImageButton imageButton_white3; private ImageButton imageButton_white4; private ImageButton imageButton_white5; private ImageButton imageButton_white6; private ImageButton imageButton_white7; private ImageButton imageButton_white8; private ImageButton imageButton_black1; private ImageButton imageButton_black2; private ImageButton imageButton_black3; private ImageButton imageButton_black4; private ImageButton imageButton_black5; private MediaPlayer mediaPlayer01; @Override protected void onCreate(Bundle bundle) { super.onCreate(bundle); setContentView(R.layout.main); mediaPlayer01 = new MediaPlayer(); // mediaPlayer01 = MediaPlayer.create(Piano.this, R.raw.white1); imageButton_white1 = (ImageButton) findViewById(R.id.white1); imageButton_white2 = (ImageButton) findViewById(R.id.white2); imageButton_white3 = (ImageButton) findViewById(R.id.white3); imageButton_white4 = (ImageButton) findViewById(R.id.white4); imageButton_white5 = (ImageButton) findViewById(R.id.white5); imageButton_white6 = (ImageButton) findViewById(R.id.white6); imageButton_white7 = (ImageButton) findViewById(R.id.white7); imageButton_white8 = (ImageButton) findViewById(R.id.white8); imageButton_black1 = (ImageButton) findViewById(R.id.black1); imageButton_black2 = (ImageButton) findViewById(R.id.black2); imageButton_black3 = (ImageButton) findViewById(R.id.black3); imageButton_black4 = (ImageButton) findViewById(R.id.black4); imageButton_black5 = (ImageButton) findViewById(R.id.black5); imageButton_white1.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.white1); imageButton_white1.setImageResource(R.drawable.whiteback1); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_white1.setImageResource(R.drawable.white1); } return false; } }); imageButton_white2.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.white2); imageButton_white2.setImageResource(R.drawable.whiteback2); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_white2.setImageResource(R.drawable.white2); } return false; } }); // imageButton_white3.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.white3); imageButton_white3.setImageResource(R.drawable.whiteback3); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_white3.setImageResource(R.drawable.white3); } return false; } }); imageButton_white4.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.white4); imageButton_white4.setImageResource(R.drawable.whiteback4); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_white4.setImageResource(R.drawable.white4); } return false; } }); imageButton_white5.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.white5); imageButton_white5.setImageResource(R.drawable.whiteback5); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_white5.setImageResource(R.drawable.white5); } return false; } }); imageButton_white6.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.white6); imageButton_white6.setImageResource(R.drawable.whiteback6); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_white6.setImageResource(R.drawable.white6); } return false; } }); imageButton_white7.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.white7); imageButton_white7.setImageResource(R.drawable.whiteback7); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_white7.setImageResource(R.drawable.white7); } return false; } }); imageButton_white8.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.white8); imageButton_white8.setImageResource(R.drawable.whiteback8); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_white8.setImageResource(R.drawable.white8); } return false; } }); imageButton_black1.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.black1); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_black1.setImageResource(R.drawable.black1); } return false; } }); imageButton_black2.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { play(R.raw.black2); } if (motionEvent.getAction() == MotionEvent.ACTION_UP) { imageButton_black2.setImageResource(R.drawable.black2); } return false; }