PendingIntend.java

// Program source: http://android-pending-intent.blogspot.com/
public class IParcel implements Parcelable
{

    PendingIntent pIntent = null;
   
    public IParcel(PendingIntent pi)
    {
        pIntent = pi;
    }
   
    public IParcel(Parcel in)
    {
        pIntent = (PendingIntent)in.readValue(null);
    }
   
    public static Parcelable.Creator<IParcel> CREATOR = new Parcelable.Creator<IParcel>(){

        @Override
        public IParcel createFromParcel(Parcel source) {
            // TODO Auto-generated method stub
            return new IParcel(source);
        }

        @Override
        public IParcel[] newArray(int size) {
            // TODO Auto-generated method stub
            return null;
        }
       
    };
  
    @Override
    public int describeContents() {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        // TODO Auto-generated method stub
        dest.writeValue(pIntent);
       
    }
   
}

public class FirstApp extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
    
        Intent myIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        PendingIntent pIntent = PendingIntent.getActivity(this, 0, myIntent,PendingIntent.FLAG_ONE_SHOT);//FLAG_ONE_SHOT - only once pIntent can use the myIntent
     
        IParcel ip = new IParcel(pIntent);
    
        Intent sndApp = new Intent();
        sndApp.setComponent(new ComponentName("com.myapp", "com.myapp.SecondApp"));
        sndApp.putExtra("obj",ip);
        startActivity(sndApp);
        }

}

public class SecondApp extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

       IParcel pc = getIntent().getExtras().getParcelable("obj");
       if(pc != null){
               pc.pIntent.send(); // this will launch the bluetooth enabling activity
       }
}