[android-developers] search +button in expandible list

CompaniesActivity extends ExpandableListActivity {

/** Called when the activity is first created. */

EditText edit;

Button search;

String[] text = { "GSK", "sanfoi", "Elilly", "Abbott", "Novartios" };

int textlength = 0;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

setListAdapter(new ExampleAdapter(this));

edit=(EditText)findViewById(R.id.edtxt);

       

// Search functionality

final ArrayList<String> text_sort = new ArrayList<String>();

search = (Button) findViewById(R.id.btn);

edit = (EditText) findViewById(R.id.edtxt);

ExpandableListView listview = (ExpandableListView) findViewById(R.id.list);

 

listview.setAdapter(new MyCustomAdapter(text));

 

search.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

textlength = edit.getText().length();

text_sort.clear();

for (int i = 0; i < text.length; i++) {

if (textlength <= text[i].length()) {

if (edit.getText().toString().equalsIgnoreCase(

(String) text[i].subSequence(0, textlength))) {

text_sort.add(text[i]);

}

}

}

setListAdapter((ExpandableListAdapter) new MyCustomAdapter(text_sort, null));

}

});

}

class MyCustomAdapter extends BaseAdapter {

String[] data_text;

MyCustomAdapter() {

}

MyCustomAdapter(String[] text) {

data_text = text;

}

MyCustomAdapter(ArrayList<String> text, ArrayList<Integer> image) {

data_text = new String[text.size()];

for (int i = 0; i < text.size(); i++) {

data_text[i] = text.get(i);

}

}

public int getCount() {

return data_text.length;

}

public String getItem(int position) {

return null;

}

public long getItemId(int position) {

return position;

}

}

this my layout :

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:background="@drawable/background"

    >

  <LinearLayout

        android:id="@+id/linearLayout1"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content" >

        <EditText

            android:id="@+id/edtxt"

            android:layout_width="250dp"

            android:layout_height="45dp"

            android:inputType="none" />

        <Button

            android:id="@+id/btn"

            android:layout_width="65dp"

            android:layout_height="50dp"

            android:layout_marginBottom="1dp"

            android:layout_marginRight="1dp"

            android:layout_marginTop="1dp"

            android:text="Search"

            android:textSize="13sp" />

    </LinearLayout>

    <ExpandableListView android:id="@android:id/list" 

              android:layout_width="fill_parent" 

              android:layout_height="fill_parent"

               android:paddingRight="20px"

            android:textSize="40px"

                  

              />

  

   

    

            

              

</LinearLayout>

can you please help any one this .,

i used edittext and search button in layout file and i search is not happening how to reslove this issues

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