android populer

private void blink(){
            final Handler handler = new Handler();
            new Thread(new Runnable() {
                public void run() {
                int timeToBlink = 600;    //in milissegunds
                try
                {
                    Thread.sleep(timeToBlink);
                }catch (Exception e)
                {
                   
                }handler.post(new Runnable()
                  {
                   public void run()
                    {
                    TextView txt = (TextView)findViewById(R.id.usage);
                    if(txt.getVisibility() == View.VISIBLE)
                     {
                    txt.setVisibility(View.INVISIBLE);
                     }else
                     {
                     txt.setVisibility(View.VISIBLE);
                     }
                      blink();
                    }
                    });
                    }
                }).start();
            }

   TextView myText = (TextView) findViewById(R.id.usage );
   Animation anim = new AlphaAnimation(0.0f, 1.0f);
   anim.setDuration(50);
   //You can manage the time of the blink with this parameter
   anim.setStartOffset(20);
   anim.setRepeatMode(Animation.REVERSE);
   anim.setRepeatCount(Animation.INFINITE);
   myText.startAnimation(anim); 

public class serv extends Service {
    private static final String TAG = "MyService";   
    AlertDialog alertDialog
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
     public void onCreate() {
          Toast.makeText(getApplicationContext(), "My Service Created",Toast.LENGTH_LONG).show();
         }
    @Override   
    public void onDestroy() {   
               Toast.makeText(this, "My Service Stopped",Toast.LENGTH_LONG).show();
               Log.d(TAG, "onDestroy");
               //player.stop();
        }   
    @Override
    public void onStart(Intent intent, int startid) {   
              Toast.makeText(this, "My Service Started",Toast.LENGTH_LONG).show();
              Log.d(TAG, "onStart");       
              //player.start();   
        }
}

    public class MainActivity extends Activity {
    private static final String TAG = "ServicesDemo";
    Button buttonStart, buttonStop; 
    PendingIntent pendingIntent;
   
    @Override
    public void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);
           setContentView(R.layout.activity_main);
              Intent i;
              i=new Intent(MainActivity.this,serv.class);
              startService(i);
}} 

< ?xml version="1.0" encoding="utf-8"?> 
< LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" > 
    < TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Which company do you like the most?"
        android:textSize="25dp"
        android:textStyle="bold" /> 
    < RadioGroup
        android:id="@+id/menu"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:checkedButton="@+id/lunch"
        android:orientation="vertical" > 
        < RadioButton
            android:id="@+id/google"
            android:checked="true"
            android:text="Google" /> 
        < RadioButton
            android:id="@+id/ms"
            android:text="Microsoft" /> 
        < RadioButton
            android:id="@+id/apple"
            android:text="Apple" /> 
        < RadioButton
            android:id="@+id/nokia"
            android:text="Nokia" /> 
        < RadioButton
            android:id="@+id/samsung"
            android:text="Samsung" /> 
    < /RadioGroup> 
    < TextView
        android:id="@+id/choice"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:text=""
        android:textSize="25dp" /> 
    < Button
        android:id="@+id/clear"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Clear CheckBoxes" /> 
< /LinearLayout> 

public class Page Flipping extends Activity implements
        RadioGroup.OnCheckedChangeListener, View.OnClickListener {

    private TextView mChoice;
    private RadioGroup mRadioGroup;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_page_flipping);
        mRadioGroup = (RadioGroup) findViewById(R.id.menu);
        // test listening to checked change events
        mRadioGroup.setOnCheckedChangeListener(this);
        mChoice = (TextView) findViewById(R.id.choice);
        // test clearing the selection
        Button clearButton = (Button) findViewById(R.id.clear);
        clearButton.setOnClickListener(this);
    }

    public void onCheckedChanged(RadioGroup group, int checkedId) {
        if (checkedId == R.id.google) {
            mChoice.setText("Selected Google");
        }
        if (checkedId == R.id.ms) {
            mChoice.setText("Selected Microsoft");
        }
        if (checkedId == R.id.apple) {
            mChoice.setText("Selected Apple");
        }
        if (checkedId == R.id.nokia) {
            mChoice.setText("Selected Nokia");
        }
        if (checkedId == R.id.samsung) {
            mChoice.setText("Selected Samsung");
        }
    }

    public void onClick(View v) {
        mRadioGroup.clearCheck();
    }
}