Eclipse：Android Soundboard 按钮“可过度点击”

Question

在我的安卓音板中，所有的按钮都可以正常工作，声音也正常播放，但是有一个问题。问题是当你在应用程序中按下一个按钮时，你可以按下其他按钮。例如，如果我按下的按钮发出警报声，我可以按下另一个按钮，两种声音会同时播放。这不是我想要的。有没有我可以添加的代码，这样我一次只能点击一个按钮，或者有一些代码可以让之前的声音停止并播放新选择的声音？

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.soundboard"
  android:versionCode="1"
  android:versionName="1.2">
<application android:icon="@drawable/icon" android:label="@string/app_name"  android:debuggable="false" android:allowClearUserData="true">
    <activity android:label="Vegeta Soundboard" android:screenOrientation="portrait" android:name="Soundboard" android:icon="@drawable/icon">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>


</application>

<uses-sdk android:minSdkVersion="3" />


</manifest> 

Answer 1

最简单的方法是在用户单击声音按钮时设置一个全局的 soundPlaying 布尔值，并在该声音结束时取消设置。

 public class Main extends Activity{




     //global variable, notice how it's not in any method or inner class
    //so it's accessible to all the members of this class
    private boolean soundPlaying = false;




     @Override
        public void onCreate(Bundle b){
            super.onCreate(b);
        }


    //Somewhere in here you have your onclick function that you have called from your xml button
     public void playSound(View v){
    if(soundPlaying)
       return;
    soundPlaying = true;
//myMedia is your media player object

    myMedia.start();//this will only work if you have a media player set up with media

    myMedia.setOnCompletionListener(new OnCompletionListener() {            
            @Override
            public void onCompletion(MediaPlayer mp) {
                soundPlaying = false;//here you set it to false cause the sound is done

            }
        });
    }





    }

Answer 2

public class newBoard extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.main);

        Toast.makeText(this, "Thank you for using this App.", Toast.LENGTH_LONG).show();

        // ads - load request to display
        AdView layout = (AdView)this.findViewById(R.id.adView);

        // ads - load display with an ad
        AdRequest adRequest = new AdRequest();
        adRequest.setTesting(true);

        layout.loadAd(adRequest);

        // import sound files
        final MediaPlayer sound01 = MediaPlayer.create(this, R.raw.sound01);
        final MediaPlayer sound02 = MediaPlayer.create(this, R.raw.sound02);
        final MediaPlayer sound03 = MediaPlayer.create(this, R.raw.sound03);
        final MediaPlayer sound04 = MediaPlayer.create(this, R.raw.sound04);
        final MediaPlayer sound05 = MediaPlayer.create(this, R.raw.sound05);
        final MediaPlayer sound06 = MediaPlayer.create(this, R.raw.sound06);
        final MediaPlayer sound07 = MediaPlayer.create(this, R.raw.sound07);
        final MediaPlayer sound08 = MediaPlayer.create(this, R.raw.sound08);
        final MediaPlayer sound09 = MediaPlayer.create(this, R.raw.sound09);
        final MediaPlayer sound10 = MediaPlayer.create(this, R.raw.sound10);
        final MediaPlayer sound11 = MediaPlayer.create(this, R.raw.sound11);
        final MediaPlayer sound12 = MediaPlayer.create(this, R.raw.sound12);
        final MediaPlayer sound13 = MediaPlayer.create(this, R.raw.sound13);
        final MediaPlayer sound14 = MediaPlayer.create(this, R.raw.sound14);
        final MediaPlayer sound15 = MediaPlayer.create(this, R.raw.sound15);
        final MediaPlayer sound16 = MediaPlayer.create(this, R.raw.sound16);
        final MediaPlayer sound17 = MediaPlayer.create(this, R.raw.sound17);
        final MediaPlayer sound18 = MediaPlayer.create(this, R.raw.sound18);
        final MediaPlayer sound19 = MediaPlayer.create(this, R.raw.sound19);
        final MediaPlayer sound20 = MediaPlayer.create(this, R.raw.sound20);
        final MediaPlayer sound21 = MediaPlayer.create(this, R.raw.sound21);
        final MediaPlayer sound22 = MediaPlayer.create(this, R.raw.sound22);
        final MediaPlayer sound23 = MediaPlayer.create(this, R.raw.sound23);
        final MediaPlayer sound24 = MediaPlayer.create(this, R.raw.sound24);
        final MediaPlayer sound25 = MediaPlayer.create(this, R.raw.sound25);

        // play sound files on clicks
        Button s01 = (Button) findViewById(R.id.button01); 
        s01.setText(this.getString(R.string.quote01));
        s01.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound01.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound01.start();                
                }

        });
        registerForContextMenu(s01);

        Button s02 = (Button) findViewById(R.id.button02); 
        s02.setText(this.getString(R.string.quote02));
        s02.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound02.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound02.start();
            }
        });
        registerForContextMenu(s02);

        Button s03 = (Button) findViewById(R.id.button03); 
        s03.setText(this.getString(R.string.quote03));
        s03.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound03.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound03.start();
            }
        });
        registerForContextMenu(s03);

        Button s04 = (Button) findViewById(R.id.button04); 
        s04.setText(this.getString(R.string.quote04));
        s04.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound04.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound04.start();
            }
        });
        registerForContextMenu(s04);

        Button s05 = (Button) findViewById(R.id.button05); 
        s05.setText(this.getString(R.string.quote05));
        s05.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound05.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound05.start();
            }
        });
        registerForContextMenu(s05);

        Button s06 = (Button) findViewById(R.id.button06); 
        s06.setText(this.getString(R.string.quote06));
        s06.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound06.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound06.start();
            }
        });
        registerForContextMenu(s06);

        Button s07 = (Button) findViewById(R.id.button07); 
        s07.setText(this.getString(R.string.quote07));
        s07.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound07.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound07.start();
            }
        });
        registerForContextMenu(s07);

        Button s08 = (Button) findViewById(R.id.button08); 
        s08.setText(this.getString(R.string.quote08));
        s08.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound08.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound08.start();
            }
        });
        registerForContextMenu(s08);

        Button s09 = (Button) findViewById(R.id.button09); 
        s09.setText(this.getString(R.string.quote09));
        s09.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound09.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound09.start();
            }
        });
        registerForContextMenu(s09);

        Button s10 = (Button) findViewById(R.id.button10); 
        s10.setText(this.getString(R.string.quote10));
        s10.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {
                    sound10.prepare();
                } catch (IllegalStateException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                sound10.start();
            }
        });
        registerForContextMenu(s10);