How to Call method inside the fragment from activity where fragment dynamically created

Question

I am creating the fragment dynamically without xml file now i want to call the method inside the fragement from parent activity so how can i do it can any body know about it , i found lots of question but they are doing with xml

Fragmentactivity

 public class HomeActivity extends FragmentActivity implements OnClickListener {

        public static final String TAG = HomeActivity.class.getSimpleName();
        PageIndicator mIndicator;
        //Spinner spinner1;
        ImageView serversetting,dropdown;
        TextView selectrange;
        int num,counter=0;
        String url,apiUser,apipass,TestAccount;
       /* public static HomeActivity newInstance() {
        return new HomeActivity();
        }*/

        @Override
        public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_parent);
        ViewPager mViewPager = (ViewPager) findViewById(R.id.viewpager);
        selectrange=(TextView)findViewById(R.id.selectrange);
        serversetting=(ImageView)findViewById(R.id.settingsserver);
        dropdown=(ImageView)findViewById(R.id.dropdown);
        mViewPager.setAdapter(new MyAdapter(getSupportFragmentManager()));
        mIndicator = (CirclePageIndicator)findViewById(R.id.indicator);
        mIndicator.setViewPager(mViewPager);

        selectrange.setOnClickListener(this);
        dropdown.setOnClickListener(this);
        serversetting.setOnClickListener(this);

        /*spinner1 = (Spinner) findViewById(R.id.spinner1);
        List<String> list = new ArrayList<String>();
        list.add("Current Month");
        list.add("Last Month");
        list.add("Last 5 Days");
        list.add("Last 10 Days");
        ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
            R.layout.spinner_layout,R.id.spinnerTarget,list);
        //dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        serversetting.setOnClickListener(this);
        spinner1.setAdapter(dataAdapter);
        spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int pos,
                    long id) {
                // TODO Auto-generated method stub
                Toast.makeText(parent.getContext(), 
                        "OnItemSelectedListener : " + parent.getItemAtPosition(pos).toString(),
                        Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub

            }
        });*/
        }


        public class MyAdapter extends FragmentPagerAdapter {
        public MyAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public int getCount() {
            return 3;
        }

        @Override
        public Fragment getItem(int position) {
           /* Bundle args = new Bundle();
            args.putInt(TextViewFragment.POSITION_KEY, position);
            return TextViewFragment.newInstance(args);*/
            Fragment f=new Fragment();  
            switch(position) {
                case 0:
                    f= new SalesGraphFragment();

                    break; 
                case 1:
                    f=new OrderGraphFragment();
                    break;
                case 2:
                    f=new UserGraphFragment();
                    break; 
            }
            return f;
        }


        /*@Override
        public CharSequence getPageTitle(int position) {
            return "Fragment # " + position;
        }*/

        }

        @Override
        protected void onStart()
        {
         super.onStart();   
         EasyTracker.getInstance().activityStart(this);
        }

        @Override
        protected void onStop()
        {
         super.onStop();
         EasyTracker.getInstance().activityStop(this);
        }

        void SelectRangeDialog()
        {
        final CharSequence[] list = {"All time","Current Month","Last Month","Today","YesterDay"};
        AlertDialog.Builder alert = new AlertDialog.Builder(HomeActivity.this);

        if(counter==0)
        {
         num=1;
         counter++;
        }

        alert.setTitle("Range");
        alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
        // TODO Auto-generated method stub
                dialog.dismiss();



                //selectrange.setText(list[which]);
        //      new ChangeStatusAsync().execute();
            }
        });
        /*if(status.equals("Order Pending"))
            num=0;
        else if(status.equals("Upfront Received"))
            num=1;
        else if(status.equals("Payment Complete"))
            num=2;*/
        alert.setSingleChoiceItems(list,num, new DialogInterface.OnClickListener()
        {
            @Override
            public void onClick(DialogInterface dialog, int which) 
            {
                //newstatus=list[which].toString(); 
                 selectrange.setText(list[which]);
                 num=which;
            }
        });
        alert.show();
      }


        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            switch (v.getId()) {
            case R.id.settingsserver:
                 Intent settings=new Intent(HomeActivity.this,SettingsActivity.class);
                 startActivity(settings);
                break;

            case R.id.selectrange:
                SelectRangeDialog();
                break;

            case R.id.dropdown:
                SelectRangeDialog();

                break;

            default:
                break;
            }

        }

    }

Fragment

public class SalesGraphFragment extends Fragment {

    public static final String POSITION_KEY = "com.burnside.embeddedfragmenttest.POSITION";
    public static final String TITLE_KEY = "com.burnside.embeddedfragmenttest.TITLE";
    Object saleData[];
    String strSales="";
    TextView txt;
    public  Object b;
    List array;
    public  Object [] objects;
    public static SalesGraphFragment INSTANCE;
    LinearLayout layout;
    String sessionId,url,amount,apiUser,apipass,TestAccount;
    MagentoStoreLogin sales=new MagentoStoreLogin();
    public ProgressDialog order_dialog;
    public static SalesGraphFragment newInstance(Bundle args) {
    SalesGraphFragment fragment = new SalesGraphFragment();
    fragment.setArguments(args);
    ProgressDialog order_dialog; 
    return fragment;
    }

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

    try{
        TestAccount=getActivity().getIntent().getExtras().getString("TestAccount");
        if(TestAccount==null)
            TestAccount="";
        if(TestAccount.equals("TestAccount"))
        {
            url =getActivity().getIntent().getExtras().getString("defaulturl");
            apiUser=getActivity().getIntent().getExtras().getString("defaultapiuser");
            apipass=getActivity().getIntent().getExtras().getString("defaultapipass");

                System.out.println(url + apipass + apiUser);


        }
        else
         {
          url=PreferenceConnector.readString(getActivity(),PreferenceConnector.URL, null);
          System.out.println("URL is:"+url);
          apiUser=PreferenceConnector.readString(getActivity(),PreferenceConnector.APIUSER, null);
          apipass=PreferenceConnector.readString(getActivity(),PreferenceConnector.APIPASS, null);  
          new saleDetail().execute();
          new GraphValue().execute();
          System.out.println(url + apipass + apiUser);
         }
            if(url!=null&&url!="")
            { 
                //Load the first 12 items
            //  counter=0;


             }
            else
            {
              Toast.makeText(getActivity(),"Please do the API settings first", 1).show();
            }


        }
        catch(Exception e)
        {
            Toast.makeText(getActivity(),"Please do the settings first Exception", 1).show();
        //   uName.setText("");
        //   password.setText("");
        }
      }

    public static SalesGraphFragment getSaleInstance() 
    {
        return INSTANCE;

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         setHasOptionsMenu(true);
    return inflater.inflate(R.layout.sales_fragment, container, false);



    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    if(!TestAccount.equals("TestAccount"))
    {
    GraphViewSeries exampleSeries = new GraphViewSeries(new GraphViewData[] {
            new GraphViewData(5, 2.0d)
            , new GraphViewData(4, 1.0d)
            , new GraphViewData(3, 3.0d) // another frequency
            , new GraphViewData(2, 2.0d)
            , new GraphViewData(1, 1.0d)
            , new GraphViewData(0, 6.0d)
    });

    // graph with dynamically genereated horizontal and vertical labels
    GraphView graphView;

        graphView = new LineGraphView(
                getActivity() // context
                , "" // heading
        );
    graphView.addSeries(exampleSeries); // data

//  LinearLayout layout = (LinearLayout) findViewById(R.id.graph1);
//  layout.addView(graphView);

    // graph with custom labels and drawBackground


        ((LineGraphView) graphView).setDrawBackground(true);
    // custom static labels
//  graphView.setHorizontalLabels(new String[] {"2 days ago", "yesterday", "today", "tomorrow"});
//  graphView.setVerticalLabels(new String[] {"high", "middle", "low"});
    //graphView.addSeries(exampleSeries); // data
    //graphView.setViewPort(2, 5);
    //graphView.setBackgroundColor(Color.WHITE);
//  graphView.set
    layout = (LinearLayout) view.findViewById(R.id.salesgraph);
    txt=(TextView) view.findViewById(R.id.salesamount);


    txt.setText(getData());
    layout.addView(graphView);
    }
    }


    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        // TODO Add your menu entries here
         inflater.inflate(R.menu.optionmenus, menu);
        super.onCreateOptionsMenu(menu, inflater);
    }

    // Handle click events
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
       switch (item.getItemId()) {

       case R.id.aboutus:
          Intent aboutus=new Intent(getActivity(),AboutUs.class);
          startActivity(aboutus);
              return true;

       case R.id.settings:
            Intent settings=new Intent(getActivity(),SettingsActivity.class);
            startActivity(settings);
                return true;

       default:
          return super.onOptionsItemSelected(item);
    }
    }


    public String getData()
    {

        return strSales;
    }
    public void setSessionId(String sessionId)
    {
     this.sessionId=sessionId;            
    }
    public class saleDetail extends AsyncTask<Void,Integer,Object> 
    {

        ProgressBar progressBar;

        @Override
       protected Object doInBackground(Void... params) {

              try 
              { if(sessionId==null)

                {   
                    sessionId=sales.login(url, apiUser, apipass);
                    setSessionId(sessionId);
                }

                   b=sales. getSaleInfo(sessionId,url);


            } catch (Exception e) {
                e.printStackTrace();
                System.out.println("Getting Order Error:"+e.getMessage());

            //customer_results=null;
            }
        //}

            return b;



     }
       @Override
       protected void onPreExecute() 
           {    
            order_dialog = ProgressDialog.show(getActivity(),"Getting Sales Information...", "Please wait while loading", true);
           }

       protected void onPostExecute(final Object object) 
      {    

           order_dialog.dismiss();

           if(object!=null)
           {
           System.out.println("Dismiss Called");
           Map<String, Double> mappedData=(Map)object;
            Double sales=mappedData.get("Total Sale");

            double finalValue = Math.round( sales * 100.0 ) / 100.0;

            strSales=""+finalValue;
            txt.setText(finalValue+"");
           //setData(object);

          }
          else
          {
              Toast.makeText(getActivity(),"You Dont have our package", 10).show();

         }
      }
}

    public class GraphValue extends AsyncTask<Void,Integer,Object[]> 
    {

        ProgressBar progressBar;

        @Override
       protected Object[] doInBackground(Void... params) {

              try 
              { if(sessionId==null)

                {   
                    sessionId=sales.login(url, apiUser, apipass);
                    setSessionId(sessionId);
                }

                   objects=sales.getGraphValue(sessionId,url);


            } catch (Exception e) {
                e.printStackTrace();
                System.out.println("Getting Order Error:"+e.getMessage());

            //customer_results=null;
            }
        //}

            return objects;



     }
       @Override
       protected void onPreExecute() 
           {    
        //  order_dialog = ProgressDialog.show(getActivity(),"Getting Sales Information...", "Please wait while loading", true);
           }

       protected void onPostExecute(final Object object[]) 
      {    

         //  order_dialog.dismiss();

         //  System.out.println("Data length is:"+object.length);
          // System.out.println("Dismiss Called");
           for(Object obj:object)
           {
               extractDate(obj);
           }

      }
    private void extractDate(Object obj) {
        // TODO Auto-generated method stub


            Map map=(Map)obj;

            System.out.println(map.get("getCreatedAt"));



        }


    }



}

Answer 1

Fragment fragment = getFragmentManager().findFragmentById(R.id.fragment_holder);
if (fragment instanceof MyFragment)
    ((MyFragment) fragment).myFragmentMethod();