複選框不工作來激活或機器人在機器人

Question

林新啓動關閉的聲音，在我的簡單的遊戲應用程序，我使用複選框以激活或關閉聲音，但是當升運行在支票上的仿真器和抽動應用框關閉不工作和音樂仍然在，任何幫助表示讚賞

import android.app.Activity; 
    import android.media.MediaPlayer; 
    import android.os.Bundle; 
    import android.widget.CheckBox; 
    import android.widget.Toast; 

    public class Setting extends Activity { 
    public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.setting); 

    } 
public static MediaPlayer Sounds; 

private CheckBox sound; 
private Boolean isChecked = false; 

public void Is_checked() { 
    if (isChecked) { 

     Sounds.start(); 

     Toast.makeText(this, "Sound is activated ", 
       Toast.LENGTH_LONG).show(); 
    } 

    else { 
     Sounds.stop(); 
     Sounds = MediaPlayer.create(this, R.raw.preview); 

     Toast.makeText(this, "Sound is deactivated ", 
       Toast.LENGTH_LONG).show(); 
    } 
}} 

XML代碼

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:background="#CD853F" > 

<CheckBox 
    android:id="@+id/sound" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentRight="true" 
    android:layout_alignParentTop="true" 
    android:layout_marginRight="78dp" 
    android:layout_marginTop="86dp" /> 

<TextView 
    android:id="@+id/soundt" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignBaseline="@+id/sound" 
    android:layout_alignBottom="@+id/sound" 
    android:layout_alignParentLeft="true" 
    android:layout_marginLeft="64dp" 
    android:text="@string/text10_view" 
    android:textAppearance="?android:attr/textAppearanceLarge" 
    android:textColor="#000000" /> 

Answer 1

試試這個代碼：

CheckBox sound = (CheckBox) findViewById(R.id.sound); 
    checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { 
     @Override 
     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
      if (isChecked) { 
       Sounds.start(); 
       Toast.makeText(this, "Sound is activated ", 
         Toast.LENGTH_LONG).show(); 
      } else { 
       Sounds.stop(); 
       Sounds = MediaPlayer.create(this, R.raw.preview); 
       Toast.makeText(this, "Sound is deactivated ", 
         Toast.LENGTH_LONG).show(); 
      } 
     } 
    });