get number(uri) from contact & call someone 打電話

package com.example.calltest;

import android.net.Uri;
import android.os.Bundle;
import android.provider.Contacts.People;
import android.provider.ContactsContract;
import android.provider.ContactsContract.Contacts;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Intent;
import android.database.Cursor;
import android.view.Menu;
import android.widget.Toast;

public class MainActivity extends Activity {
private static final int PICK_CONTACT_REQUEST = 0;


public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);

   pickContact();
     

       
}


private void pickContact() {
  Intent pickContactIntent = new Intent( Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI );
   pickContactIntent.setType(ContactsContract.CommonDataKinds.Phone.CONTENT_TYPE);
   startActivityForResult(pickContactIntent, PICK_CONTACT_REQUEST);


}

@Override
public void onActivityResult( int requestCode, int resultCode, Intent intent ) {

   super.onActivityResult( requestCode, resultCode, intent );
   if ( requestCode == PICK_CONTACT_REQUEST ) {

       if ( resultCode == RESULT_OK ) {
               Uri pickedPhoneNumber = intent.getData();
               // handle the picked phone number in here.

               Toast.makeText(getApplicationContext(), pickedPhoneNumber+"",Toast.LENGTH_SHORT).show();
               Uri number = Uri.parse(pickedPhoneNumber.toString());
               Intent dial = new Intent(Intent.ACTION_CALL, number);
               startActivity(dial);
           }
       }
   }
}



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    <uses-permission android:name="android.permission.READ_CONTACTS"/>
    <uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>