title: How to give input date field for registration form in android?
body: <p>I tried to give datepicker by following android studio tutorial.
  This is my MainActivity.java</p>
  
  <pre><code>import android.app.DialogFragment;
  import android.os.Bundle;
  import android.support.v7.app.AppCompatActivity;
  import android.view.View;
  
  public class MainActivity extends AppCompatActivity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
      }
  
      public void showDatePickerDialog(View v) {
          DialogFragment newFragment = new DatePickerFragment();
          newFragment.show(getSupportFragmentManager(),"datePicker");
      }
  }
  </code></pre>
  
  <p>DatePickerFragment.java looks like</p>
  
  <pre><code>import android.app.DialogFragment;
  import android.os.Bundle;
  import android.support.v7.app.AppCompatActivity;
  import android.view.View;
  
  public class MainActivity extends AppCompatActivity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
      }
  
      public void showDatePickerDialog(View v) {
          DialogFragment newFragment = new DatePickerFragment();
          newFragment.show(getSupportFragmentManager(),"datePicker");
      }
  }
  </code></pre>
  
  <p>When i try to run the code the following error i got in cosole ::: 
  Error:(18, 20) error: no suitable method found for show(android.support.v4.app.FragmentManager,String)
  method DialogFragment.show(android.app.FragmentManager,String) is not applicable
  (argument mismatch; android.support.v4.app.FragmentManager cannot be converted to android.app.FragmentManager)
  method DialogFragment.show(FragmentTransaction,String) is not applicable
  (argument mismatch; android.support.v4.app.FragmentManager cannot be converted to FragmentTransaction)</p>
  
  <p>Finally my activity_main.xml looks like</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:paddingBottom="@dimen/activity_vertical_margin"
      android:paddingLeft="@dimen/activity_horizontal_margin"
      android:paddingRight="@dimen/activity_horizontal_margin"
      android:paddingTop="@dimen/activity_vertical_margin"
      android:orientation="vertical"
      tools:context="com.acknotech.kiran.dateexample.MainActivity"&gt;
  
      &lt;Button
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="@string/pick_date"
          android:onClick="showDatePickerDialog" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>where i made wrong?</p>
  
  <p>Thanks &amp; Regards</p>