title: Get Contact Name Through Contact Number
body: <p>i need to display contact name when user enter contact number .And click on Show Contact Name Button.
  My Layout Xml File Content 3 Field
  1.Edit Text(where user enter contact no.)
  2.Text View(where contact name display when button pressed)
  3.Button
  Here my activity class for better understand</p>
  
  <pre><code>public class ContactNameActivity extends Activity
  {
  
      @Override
      public void onCreate(Bundle savedInstanceState)
      {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.main);
          final Button buttonshow = (Button) findViewById(R.id.button_ShowName);
          final EditText textPhoneNo = (EditText) findViewById(R.id.Edittext_Number);
          final TextView tv=(TextView)findViewById(R.id.tv_ContactName);
          buttonshow.setOnClickListener(new OnClickListener() {
  
                  @Override
                  public void onClick(View arg0) {
  
                      //here i need String ContactName
  
                      tv.setText(String.valueOf(ContactName));
  
                  }
  
              });
  
      }
  }
  </code></pre>